Vol. ill 1 946 No. 1 MEMOIRS oF the Southern California Academy of Sciences A Guide to the Literature and Distributions of the Marine Algae of the Pacific Coast of North America by E. YALE DAWSON Los Angeles, California January 20, 1947 Southern California Academy of Sciences OFFICERS and DIRECTORS Db. H. J. Andrews - - De. a, Weie Bell Db. William L. Lloyd - Db. John A. Comstock. Db. H. J. Andrews Db. a. Weib Bell Db. John A. Comstock President First Vice-President Second Vice-President Secretary and Treasurer Db. William L. Lloyd Mr. Theodobe Payne - De. W. Dwight Pikboe De. Chester Stock Db. Louis C. Wheeler Db. Robert D. Emery Db. John Herman Mb. R. S. Woglum ADVISORY BOARD Mb. Fred B. Bublew Db. Howard R. Hill Mb. a. York Escalante Db. R. H. Sw^ Me. Samuel Moody Haskins De. Shebwin F. Wood BOTANICAL SECTION De. George R. Johnstone, Chairman SECTION OF HEALTH AND SANITATION Db. Robert D. Emery, Chairman SECTION OF ZOOLOGICAL SCIENCES Db. a. Weie Bell, Chairman SECTION OF CHEMICAL SCIENCES Major Jos. B. Ficklen III, Chairman SECTION OF EARTH SCIENCES Db. Chester Stock, Chairman SECTION OF PHYSICAL SCIENCES Db. Lee Deforest, Chairman SECTION OF AGRICULTURAL SCIENCES Me. Russell S. Woglum, Chairman SECTION OF JUNIOR SCIENCE Mb. a. York, Escalante, Chairman ARCHEOLOGICAL SECTION Mb. Arthur W’oodward, Chairman FINANCE COMMITTEE Mb. Fbed E. Burlew, Chairman Mb. Samuel Moody Haskins Db. John A. Comstock PROGRAM COMMITTEE Db. Robert L. Ruthebfobd, Chairman Db. Howard R. Hnx HOSPITALITY COMMITTEE Dr. W. Dwight Piebce, Chairman Mbs. Eunice King Mb. Hugh D. Austin COMMITTEE ON PUBLICATION Db. John A. Comstock, Chairman Db. Chester Stock Db. Howard R. Hill Dr. William L. Lloyd COMMITTEE ON CONSERVATION Db. John A. Comstock, Chairman Mb. Theodore Payne Prof. J. Stanley Beode Office of the Academy Los Angeles County Museum, Exposition Park, Los Angeles 7, CalU- ' <4 I ♦ \ it I • ... % « t $ i { \ 1 •; P,« 1^ t \ « I A GUIDE TO THE Literature and Distributions OF THE Marine Algae of the Pacific Coast of North A merica h By E. YALE DAWSON Memoirs of the Southern California Academy of Sciences Vol. 3, No. I, 1946 PRICE $2.00 i /^CaAc-i > A GUIDE TO THE LITERATURE AND DISTRI- BUTIONS OF THE MARINE ALGAE OF THE PAGIFIC COAST OF NORTH AMERICA By E. YALE DAWSON INTRODUCTION More than two decades have elapsed since the monographs by Setchell and Gardner of the Chlorophyceae and Phaeophyceae brought our knowledge of these groups of marine algae on the Pacific Coast of North America up to date for 1920 and 1925, respectively. Although these works are still highly authoritative and moderately complete, a considerable number of papers deal- ing with the green and brown algae of our coasts have subse- quently appeared, creating changes and additions in these classes. The status of the Rhodophyceae, moreover, has long been un- satisfactory, for no assembly of the literature dealing with Pacific Coast species, nor complete survey of the species, has ever been accomplished. The existing information is badly scattered and largely inaccessible except to those few who have access to a large library and to collections such as those of the University of California. Aiming toward alleviating this situation, an attempt has been made to assemble here the published records of de- terminations and distributions of all the marine algae of the Pacific Coast of North America, with the exception of the Myx- ophyceae. The appearance of three important works within the past year, each dealing with the algal flora of a different part of the Pacific Coast, has made this task immeasurably easier and more practicable. Smith s Marine Algae of the Monterey Peninsula, California, in treating of a large proportion of the species occur- ring on the Pacific Coast of the United States, has been of signal value in bringing together a great amount of information on these northern plants. The author’s monograph of the Marine Algae of the Gulf of California has brought that region up to date such that no further assembly nor review of its literature was neces- sary. The valuable work of Taylor: Pacific Marine Algae of the Allan Hancock Expeditions to the Galapagos Islands has provided abundant information on the algal floras of the Mexican and Cen- tral American coasts of which almost nothing was previously known. Citation of all the references to any given species has not been possible, but the references cited include the most recent ones and will serve in each case as a key to the previous literature. The limits of the “Pacific Coast of North America” are taken as the Aleutian Islands on the north and the Gulf of Panama on the south. The coastwise distance between Attu Island and Pana- ma is nearly 6500 miles. For the sake of consistency, distribution records are cited from north to south. La Jolla, California, June 30, 1945. Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 LIST OF SPECIES CHLOROPHYCEAE (GREEN ALGAE) Order VOLVOCALES Fam. Polyblepharidaceae Stephanoptera gracilis (Artari) G. M. Smith Smith, 1944 San Francisco Bay; Monterey, Calif. Dunaliella salina (Dunal) Teodoresco Smith, 1944 San Francisco; Monterey, Calif. Fam. Chlamydomonadaceae Platymonas subcordiformis (Wille) Hazen Smith, 1944 Monterey, Calif. Order TETRASPORALES Fam. Chlorangiaceae COLLINSIELLA TUBERCULATA Setchell & Gardner Smith, 1944 Vancouver Is., B. C. to Pacific Grove, Calif. Prasinocladus lubricus Kuckuck Smith, 1944 Monterey, Calif. Order ULOTRICHALES Fam. Ulotrichaceae Ulothrix flacca (Dillwyn) Thuret Setchell & Gardner, 1920 Alaska to California Ulothrix implexa Kiitzing Smith, 1944 Bering Sea to Monterey, Calif. 3 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ulothrix laetevirens (Kiitzing) Collins Setchell & Gardner, 1920 Unalaska, Alaska to California Ulothrix pseudoflacca f. minor Wille Setchell & Gardner, 1920 Sitka, Alaska Ulothrix pseudoflacca f. major Wille Setchell & Gardner, 1920 San Francisco, Calif. Ulothrix pseudoflacca f. maxima Setchell & Gardner Setchell & Gardner, 1920 San Francisco, Calif. Fam. Chaetophoraceae Bulbocoleon piliferem Pringsheim Setchell & Gardner, 1920; Dawson, 1945B Southern Calif. PiLiNiA Lunatiae f. simplex Thivy Taylor, 1945 Panama City, Panama PiLINIA MARITIMA f. PACIFICA Thivy Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Phaeophilia dendroides (Crouan) Batters Taylor, 1945 Is. Maria Magdalena, Nayarit Phaeophilia Engleri Reinke Taylor, 1945 Is. Clarion, Revilla Gigedo Arch.; Tangola-Tangola, Oaxaca to Is. Taboga, Panama Phaeophilia polymorpha Jao Jao, 1937 San Juan Is., Wash. Entocladia cingens Setchell & Gardner Setchell & Gardner, 1920 San Diego, Calif. Entocladia codicola Setchell & Gardner Smith, 1944; Dawson, 1945B Monterey Peninsula to La Jolla, Calif. Entocladia condensata Setchell & Gardner Dawson, 1944 r ,-r Puerto Libertad, Sonora; Is. San Esteban, Gulf of Calif. 4 Memoirs. So. Calip. Academy of Sciences Vol. 3, Part 1, 1946 Entocladia mexicana Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif.; La Paz, Baja Calif. •' Entocladia Polysiphoniae Setchell & Gardner Dawson, 1944 Guaymas, Sonora; La Paz, Baja Calif. Entocladia viridis Reinke Smith, 1944 Moss Beach, San Mateo Co. ; Monterey, Calif. Endophyton ramosum Gardner Smith, 1944 San Francisco; Monterey Peninsula, Calif. PsEUDODicTYON GENICULATUM Gardner Smith, 1944 San Francisco; Pacific Grove, Calif. Internoretia Freyeana Setchell & Gardner Setchell & Gardner, 1920 Friday Harbor, Wash. Ulvella Setchellii Dangeard Smith, 1944; Ulvella Lens in Setchell & Gardner, 1930 i acific Grove, Calif.; Is. Guadalupe, Baja Calif. PSEUDOULVELLA APPLANATA Setchell & Gardner Smith, 1944 Carmel, Calif. PsEUDOULVELLA CONSOCIATA Setchell & Gardner Setchell & Gardner, 1920 San Francisco Bay at Alameda, Calif. PSEUDOULVELLA PROSTRATA (Gardner) Setchell & Gardner Setchell & Gardner, 1920 San Francisco, Calif. PSEUDOPRINGSHEIMIA APicuLATA Setchell & Gardner Smith, 1944 San Francisco; Monterey, Calif. Pringsheimiella Marchantae (Setchell & Gardner) Schmidt ' Schmidt, 1935; Pringsheimia Marchantae in Dawson 1944 La Paz, Baja Calif. 5 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fam. TrentepohUaceae Gomontia polyrhiza (Lagerheim) Bornet & Flahault Smith, 1944 Neah Bay, Wash. ; Monterey, Calif. Trentepohlia odorata (Wiggers) Wittrock Sanborn & Doty, 1946 Coos Bay, Oregon Trentepohlia odorata var. umbrina (Kiitzing) Hanot Setchell & Gardner, 1920 San Pedro, Calif. Order ULVALES Fam. Ulvaceae Monostroma areolatum Setchell & Gardner Setchell & Gardner, 1920 Sitka, Alaska Monostroma fractum Jao Jao, 1937 Turn Is., Wash. Monostroma fuscum (Postels & Ruprecht) Wittrock Setchell & Gardner, 1920 Alaska to Puget Sound, Wash. Monostroma fuscum var. splendens (Ruprecht) Rosenx inge Setchell & Gardner, 1920 Alaska to Vancouver Is., B. C. Monostroma fuscum var. Blyttii (Areschoug) Collins Setchell & Gardner, 1920 Vancouver Is., B. C. ; Washington Monostroma Grevillei (Thu ret) Wittrock Setchell & Gardner, 1920 Unalaska, Alaska Monostroma Grevillei var. lubricum (Kjellman) Collins Setchell & Gardner, 1920 Sitka, Alaska Monostroma Grevillei var. Vahlii (J. Agardh) Rosen- vinge Setchell & Gardner, 1920 Kukak Bay ; Sitka, Alaska Monostroma latissimum (Kiitzing) Wittrock Setchell & Gardner, 1920 Vancouver, B. C. to central California 6 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Monostroma orbiculatum Thuret Setchell & Gardner, 1920 Central California Monostroma quaternarium (Kiitzins:) Desmazieres Setchell & Gardner, 1920 Washington to southern California Monostroma zostericola Tilden Smith, 1944 Vancouver Is., B. C. ; Puget Sound, Wash. ; Monterey Peninsula, Calif. Enteromorpha acanthophora Kiitzing Dawson, 1944 Gulf of Calif. Enteromorpha clathrata (Roth) Greville Smith, 1944 Sitka, Alaska to Carmel, Calif. Enteromorpha crinita (Roth) T. Agardh Setchell & Gardner, 1920 Valdes, Alaska to San Diego, Calif. Enteromorpha compressa (Linnaeus) Greville Smith, 1944; Dawson, 1944 Bering Sea to central Mexico; Gulf of Calif. Enteromorpha erecta J. Agardh Setchell & Gardner, 1920 Comox, Vancouver Is., B. C. to Santa Rosa Is., Calif. Enteromorpha flexuosa (Wulfen) J. Agardh Setchell & Gardner, 1920; Taylor, 1945 Santa Barbara, Calif, to Port Parker, Costa Rica Enteromorpha groenlandica (J. Agardh) Setchell & Gardner Setchell & Gardner, 1920 Bering Sea to Unalaska, Alaska Enteromorpha intestinalis (Linnaeus) Link- Smith, 1944; Dawson, 1944 Kukak Bay, Alaska to La Paz, Baja Calif.; Gulf of Calif. Enteromorpha intestinalis f. cylindracea T. A^rardh Setchell & Gardner, 1920 ^ Alaska to Mexico Enteromorpha intestinalis f. maxima B Agardh Setchell & Gardner, 1920 Alaska to Mexico Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Enteromorpha intestinalis f. CLAVATA J. Agardh Setchell & Gardner, 1920 Alaska to Mexico Enteromorpha lingulata J. Agardh Setchell & Gardner, 1920; Taylor, 1945 Is. Guadalupe, Baja Calif, to Balboa, Canal Zone Enteromorpha marginata J. Agardh Setchell & Gardner, 1920 Vancouver Is., B. C. to Calif. Enteromorpha micrococca Kiitzing Smith, 1944 Dutch Harbor, Alaska to Mexico Enteromorpha microcca f. subsalsa Kjellman Setchell & Gardner, 1920 Skagway, Alaska to Puget Sound, Wash. Enteromorpha minima Nageli Smith, 1944 Dutch Harbor, Alaska to Mexico Enteromorpha plumosa Kiitzing Setchell & Gardner, 1920; 1930 . Puget Sound, Wash.; San Francisco, Calif.; Is. Clarion Revilla Gigedo Arch. Enteromorpha prolifera (Miiller) J. Agardh Setchell & Gardner, 1920; Dawson, 1944 Alaska to Central America Enteromorpha salina var. polyclados Kiitzing Setchell & Gardner, 1920 San Francisco Bay, Calif. Enteromorpha torta (Mertens) Reinbold Setchell & Gardner, 1920; Jao, 1937 Friday Harbor, Wash. ; San Diego, Calif. Enteromorpha tubulosa Kiitzing Smith, 1944; Dawson, 1945E ^ Sausalito, Calif, to Cabo Colnett, Baja Calif. Ulva ANGUSTA Setchell & Gardner ^ ^ ^ Smith, 1944; Dawson, 1944; Setchell & Gardner, 1930^ Plumboldt Co. to Carmel, Calif.; Is. Guadalupe, Baj Calif. ?; Guaymas, Sonora Ulva californica Wille Setchell & Gardner, 1920 San Diego Co., Calif. 8 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ulva dactylifera Setchell & Gardner Setchell & Gardner, 1920; Dawson, 1944 Southern Cahf to San Roque, Baja Calif.; southern Gulf of Cahf. Ulva expansa (Setchell) Setchell & Gardner Smith, 1944 Puget Sound, Wash, to La Paz, Baja Calif.? Ulva fenestrata Postels & Ruprecht Setchell & Gardner, 1920 Sitka, Alaska to Puget Sound, Wash. Ulv'^a Lactuca Linnaeus Smith, 1944; Dawson, 1944; Taylor, 1945 Bering Sea to Panama Ulva latissima Linnaeus Setchell & Gardner, 1920 Juneau, Alaska Ulva Linza Linnaeus Smith, 1944 Orca, Alaska to La Paz, Baja Calif. Ulva lobata (Kiitzing) Setchell & Gardner Smith, 1944; Taylor, 1945 San Francisco to San Diego, Calif.; Bahia Petatlan, Guerrero Ulva rigida C. Agardh Smith, 1944; Dawson, 1944; Taylor, 1945 Uyak Bay, Alaska to La Paz, Baja Calif. ; Gulf of Calif • Is. Maria Madre, Nayarit Ulva stenophylla Setchell & Gardner Smith, 1944 Bolinas to Monterey, Calif. Ulva taeniata (Setchell) Setchell & Gardner Smith, 1944; Dawson, 1945E Coos Bay, Oregon to Carmel, Calif.; Punta Descanso; Cabo Colnett, Baja Calif. Ulva vexata Setchell & Gardner Setchell & Gardner, 1920 San Francisco, Calif. Percursaria percursa (C. Agardh) Rosenvinge Setchell & Gardner, 1920 Unalaska, Alaska to San Francisco Bay, Calif. 9 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Order SCHIZOGONIALES Fam. Schizogoniaceae Prasiola borealis Reed Setchell & Gardner, 1920 Unalaska, Kodiak and Baranof Is., Alaska Prasiola calophylla (Carmichael) Meneghim Setchell & Gardner, 1920 Whidbey Is., Wash. Prasiola delicatula Setchell & Gardner Setchell & Gardner, 1920 Sitka, Alaska Prasiola meridionalis Setchell & Gardner Smith, 1944 . r- ^^c Friday Harbor, Wash, to Carmel, Calit. Gayella constricta Setchell S: Gardner Smith, 1944 . n Friday Harbor, Wash. ; Tomales Point; Monterey, Calif. Gayella polyrhiza Rosenvinge Setchell & Gardner, 1920 Amaknak Is., Alaska Order CLADOPHORALES Fam. Cladophoraceae Rhizoclonium implexum (Dillwyn) Kiitzing Smith, 1944 Unalaska, Alaska to Carmel, Calif. Rhizoclonium Kerneri Stockmayer Setchell & Gardner, 1920; Taylor, 1945 Victoria, B. C. ; Is. Clarion, Revilla Gigedo Arch Rhizoclonium RiPARiuM (Roth) Harvey Smith, 1944 , rr Unalaska, Alaska to Carmel, Calif. Rhizoclonium tortuosum (Dillwyn) Kiitzing Smith, 1944 Alaska to Carmel, Calif. Lola lubrica (Setchell & Gardner) A et G. Hamel Dawson, 1944; Rhisocloniwn lubricuni in Setcneli Gardner, 1920; Taylor, 1945 Rocke Harbor, Wash, to Puerto Culebra, Costa Rica & 10 Memoirs, So. Calif. Academy of Sciexces Vol. 3, Part 1, 1946 Hormiscia doliifera Setchell & Gardner Setchell & Gardner, 1920 San Francisco, Calif. Hormiscia grandis (Kylin) Setchell & Gardner Setchell & Gardner, 1920 Unalaska, Alaska to Puget Sound, Wash. Horaiiscia penicilliformis (Roth) Fries Setchell & Gardner, 1920; Urospora peniciliformis in Smith, 1944 Bering Sea to Carmel, Calif. Hormiscia sphaerulifera Setchell & Gardner Setchell & Gardner, 1920 Whidbey Is., Wash. Hormiscia tetraciliata Frye & Zeller Setchell & Gardner, 1920 San Juan County, Wash. Hormiscia vancouveriana (Tilden) Setchell & Gardner Setchell & Gardner, 1920 Oak Bay. Vancouver Is., B. C. Hormiscia Wormskioldii (Mertens) Fries Setchell & Gardner, 1920 Friday Harbor, Wash, to Gualala, Calif. CiiAETOMORPHA AEREA (Dillwyn) Kiitzing Smith, 1944; Dawson, 1944 Santa Cruz to San Diego, Calif.; northern Gulf of Calif. Chaetomorpha antennina (Bory) Kiitzing Setchell & Gardner, 1920; Dawson, 1945B 1945E' Taylor, 1945 ’ ’ La Jolla, Calif, to Panama Chaetomorpha californica Collins Setchell & Gardner, 1920 Laguna Beach to La Jolla, Calif. Chaetomorpha cannabina (Areschoug) Kjellman Setchell & Gardner, 1920 Alaska to Puget Sound, Wash. Chaetomorpha clavata (C. Agardh) Kiitzing- Dawson, 1945E Punta Descanso; Cabo Colnett, Baja Calif. Chaetomorpha crassa (C. Agardh) Kiitzing- Taylor, 1939 Bahia Magdalena, Baja Calif. 11 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Chaetomorpha melangonium (Weber & Mohr) Kutzing Setchell & Gardner, 1920 Unalaska ; Kodiak Is., Alaska Chaetomorpha tenuissima Jao Jao, 1937 Friday Harbor, Wash. Chaetomorpha torta (Farlow) Setchell & Gardner, 1920; Dawson, 1945B Southern Calif. Cladophora albida (Hudson) Kutzing Setchell & Gardner, 1920; Dawson, 1944 East Sound, Wash.; San Pedro, Calif.; Kmo, Sonora Cladophora amphibia Collins Setchell & Gardner, 1920 San Francisco Bay, Calif. Cladophora Bertolonii var. hamosa (Kutzing) Ardissone Smith, 1944 Pacific Grove, Calif. Cladophora delicatula Montagne Smith, 1944; Dav/son, 1944 Monterey Peninsula; San Diego, Sonora Calif.; Rio Mayo, Cladophora flexuosa (Griffiths) Harvey Smith, 1944 _ r- vc Annettee Is., Alaska to San Diego, Calit. Cladophora glaucescens (Griffiths) Harvey Setchell & Gardner, 1920 Nanaimo, B. C. to Oakland, Calif. Cladophora gracilis (Griffiths) Kutzing Setchell & Gardner, 1920 Sitka, Alaska; Neah Bay, Wash. Cladophora gracilis f. expansa Farlow Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Cladophora graminea Collins Smith, 1944 ; Dawson, 1944 ; 1945E Santa Cruz, Calif, to Guaymas, Sonora Cladophora hemisphaerica Gardner Smith, 1944 Monterey Peninsula, Calif. 12 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Cladophora HESPERIA Setchell & Gardner Dawson, 1944 Kino, Sonora to cape district, Baja Calif. Cladophora Hutchinsiae (Dillwyn) Kiitzing Setchell & Gardner, 1920 Vancouver Is., B. C. Cladophora Hutchinsiae var. distans (C. Agardh) Kiitzing Setchell & Gardner, 1920 West coast of Vancouver Is., B. C. Cladophora laetevirens (Dillwyn) Kiitzincf Setchell & Gardner, 1920 Vancouver, B. C. and Straits of Juan de Fuca Cladophora MacDougalii Howe Dawson, 1944 Bahia San Felipe, Baja Calif. Cladophora microcladioides Collins Smith, 1944; Dawson, 1944; 1945E Vancouver, B. C. to Gulf of Calif. Cladophora microcladioides f. stricta Collins Setchell & Gardner, 1920 San Diego, Calif. Cladophora ovoidea Kiitzing Smith, 1944 Santa Cruz to Monterey, Calif. Cladophora panamensis Taylor Taylor, 1945 Bahia Honda, Panama Cladophora prolifera (Roth) Kiitzingf Taylor, 1945 Golfo Dulce, Costa Rica Cladophora Rudolphiana (C. Agardh) Kiitzing Dawson, 1944 Guaymas, Sonora Cladophora Rudolphiana f. eramosa Gardner Setchell & Gardner, 1920; Dawson, 1944 San Francisco Bay, Calif.; Guaymas, Sonora Cladophora Stimpsonii Harvey Setchell & Gardner, 1920 Ucluet Inlet, B. C. to southern Calif. Cladophora tiburonensis Dawson Dawson, 1944 Is. Tiburon, Gulf of Calif. 13 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Cladophora trichotoma (C. Agardh) Kiitzing Smith, 1944; Dawson, 1944; 1945E _ Vancouver Is., B. C. to Punta Descanso, Baja Lalit., La Paz, Baja Calif.? Cladophora trichotoma f. elongata Collins Setchell & Gardner, 1920 Point Carmel, Calif. Spongomorpha arcta (Dillwyn) Kiitzing Setchell & Gardner, 1920 Bering Sea to Puget Sound, Wash. Spongomorpha coalita (Ruprecht) Collins Smith, 1944 Unalaska, Alaska to Carmel, Calif. Spongomorpha duriuscula (Ruprecht) Collins Setchell & Gardner, 1920 Unalaska ; Karluk, Alaska Spongomorpha piystrix Stroemfelt Setchell & Gardner, 1920 Agattu Is. to Sitka, Alaska Spongomorpha Mertensii (Ruprecht) Setchell & Gardner Setchell & Gardner, 1920 Unalaska, Alaska to San Francisco, Calif. Spongomorpha saxatilis (Ruprecht) Collins Setchell & Gardner, 1920 Alaska to San Francisco, Calif. Spongomorpha saxatilis var. Chamissonis (Ruprecht) Collins Setchell & Gardner, 1920 Alaska to Washington Spongomorpha spinescens Kiitzing Setchell & Gardner, 1920 Unalaska to Coos Bay, Oregon Microdictyon Palmeri Setchell Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Fam. Valoniaceae Dictyosphaeria australis Setchell Taylor, 1945 Is. Clarion; Is. Socorro, Revilla Gigedo Arch. 14 Memoirs, So. Calif. Ac.\demy of Sciences Vol. 3, Part 1, 1946 Dictyosphaeria Versluysi Weber van Bosse Setchell & Gardner, 1930; Dawson, 1944; Taylor, 1945 Is. Guadalupe, Baja Calif.; Is. Espiritu Santo, Gulf of Calif. ; Is. Socorro, Revilla Gigedo Arch. Cladophoropsis robusta Setchell & Gardner Dawson, 1944; Taylor, 1945 Is. Tortuga, Gulf of Calif.; Is. Isabel, Nayarit Boodlea composita (Harvey & Hooker, f.) Brand Taylor, 1945 Is. Maria Magdalena, Nayarit Valoniopsis Hancockii Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Valoniopsis pachynema (Martens) Borgesen Dawson, 1944 Is. Angel de la Guarda to Is. Espiritu Santo, Gulf of Calif. SiPHONOCLADus PUSiLLOiDEs Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Earn. Dasycladaceae Acetabularia parvula Solms-Laubach Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Acetabularia parvula var. Americana Taylor Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. Neomeris Vanbosseae Howe Taylor, 1945 Is, Socorro, Revilla Gigedo Arch. Order CHLOROCOCCALES Fam. Endosphaeraceae Chlorochytrium inclusum Kjellman Smith, 1944 Sitka, Alaska to Carmel, Calif. Chlorochytrium Porphyrae Setchell & Gardner Smith, 1944 Cape Flattery, Wash.; San Francisco; Monterey Penin- sula, Calif. 15 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Chlorochytrium Schmitzii Rosenvinge Setchell & Gardner, 1920 Kodiak Is., Alaska CoDioLUM GREGARiuM A. Braun Setchell & Gardner, 1920 Friday Harbor, Wash. CoDioLUM Petrocelidis Kuckuck Smith, 1944 Whidbey Is., Wash.; San Francisco; Monterey, Calit CODIOLUM PUSILLUM f. SUBSESSILE Jao Jao, 1937 Brown Is., Wash. Order SIPHONALES Fam. Halicystidaceae Halicystis ovalis (Lyngbye) Areschoug Smith, 1944 Vancouver Is., B. C. to Redondo, Calif. Fam. Bryopsidaceae Bryopsis corticulans Setchell Smith, 1944; Dawson, 1945B Victoria, B. C. to La Jolla, Calif. Bryopsis galapagensis Taylor Taylor, 1945 Is. Socorro ; Is. Clarion, Revilla Gigedo Arch. Bryopsis hypnoides Lamouroux Smith, 1944; Taylor, 1945 ^ Victoria, B. C. to San Pedro, Calif. ; Panama City, Pan- ama Bryopsis pennatula J. Agardh Setchell & Gardner, 1920; Taylor, 1945 San Agustin, Oaxaca; Bahia Petatlan, Guerrero Bryopsis plum os a (Hudson) C. Agardh Setchell & Gardner, 1920 Friday Harbor, Wash. Bryopsis plumosa var. pennata (Lamouroux) Borgesen Dawson, 1944 Is. Tiburon, Gulf of Calif. 16 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fam. Derbesiaceae Derbesia Lamourouxii (J. Agardh) Solier Setchell & Gardner, 1920 On the coast near Tijuana, Baja Calif. Derbesia marina (Lyngbye) Kjellman Smith, 1944 Sitka, Alaska to San Diego, Calif. Derbesia pacifica Jao Jao, 1937 Turn Is., Wash. Derbesia vaucheriaeformis (Harvevl T As^ardh Jao, 1937 ^ ^ Whidbey, Is., Wash. Fam. Vaucheriaceae Vaucheria litoria Bang & C Ag-ardh Jao, 1937 San Juan Is., Wash. Fam. Phyllosiphonaceae OSTREOBIUM Quekettii Bomet & Flahault Jao, 1937; Taylor, 1945 Puget Sound, Wash. ; Is, Clarion, Revilla Gigedo Arch. Ostreobium Reineckei Bornet Setchell & Gardner, 1930; Taylor, 1945 Is. Guadalupe, Baja Calif.; Is. Clarion, Revilla Gigedo Arch. ^ Fam. Caulerpaceae Caulerpa peltata (Turner) Lamouroux Taylor, 1945 Tangola-Tangola, Oaxaca Caui^rpa pinnata f. PECTINATA (Kutzing) Weber Van Bosse Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Caulerpa racemosa var. chemnitzia (Esper) Weber van Bosse Dawson, 1944 Bahia Agua Verde, Baja Calif. Caulerpa racemosa var. clavifera f. macrophysa (Kiitz- ing) Weber van Bosse ^ Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. 17 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Caulerpa racemosa var. laetevirens t. cylindraceae (Sender) Weber van Bosse Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Caulerpa racemosa var. laetevirens f. typica Weber van Bosse Setchell & Gardner, 1930; Taylor 1945 Is. Guadalupe, Baja Calif.; Is. Clarion, Revilla Gigedo Arch. Caulerpa racemosa var.occiDENTALis (C. Agardh) Borgesen Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Caulerpa racemosa var. uvifera (Turner) Weber van Bosse Dawson, 1944 Is. Espiritu Santo, Gulf of Calif. Caulerpa sertularioides (Gmelin) Howe Dawson, 1944; Taylor, 1945 Is, Espiritu Santo, Gulf of Calif. ; Oaxaca Tangola-Tangola, Caulerpa Vanbosseae Setchell & Gaidner son T944 Is. Angel de la Guarda to Is. Espiritu Santo, Gulf of Calif. Fam. Codiaceae CODIUM amplivesiculatum Setchell & Gardner Dawson, 1944 Pond Is., Gulf of Calif. CoDiuM ANASTOMOSANS Setchell & Gardner Dawson, 1944 ^ ^ ir r r- rr Is. Angel de la Guarda to Is. Tiburon, Gulf ot Gaiit. CoDiuM CONJUNCTUM Setchell & Gardner Dawson, 1944 Is. Tortuga, Gulf of Calif. CoDiuM cuNEATUM Setcliell & Gardner Dawson, 1944 Vicinity of Smith Is., Gulf of Calif. CODIUM DECORTICATUM (Woodward) Plowe Setchell, 1933 ; Taylor, 1939 Bahia Magdalena, Baja Calif. ? 18 Memoirs, fco. Calif. Academy of Sciences Vol. 3, Part 1, 1946 CODIUM FERNANDEZIANUM Sctchell Taylor, 1945 Bahia Santa Marfa, Baja Calif. CoDiuM FRAGILE (Suringar) Hariot Smith, 1944; Taylor, 1945; Dawson, 1945E Alaska to Puerto San Bartolome, Baja Calif. CoDiuM isABELAE Taylor Taylor, 1945 Is. Qarion, Revilla Gigedo Arch. CODIUM LONGIRAMOSUM Setchell & Gardner Dawson, 1944; Taylor, 1945 Pond Is., Gulf of Calif.; Is. Clarion; Is. Socorro, Revilla Gigedo Arch.; Bahia Petatlan, Guerrero CoDiuM Macdougalii Dawson Dawson, 1944 Puerto Libertad, Sonora CoDiuM Palmeri Dawson Dawson, 1945C Is. Guadalupe, Baja Calif. CoDiuM Setchellii Gardner Smith, 1944; Taylor, 1945 Sitka, Alaska to Carmel, Calif. ; Is. Jacarita, Panama ? CoDiuM simulans Setcliell & Gardner Setchell & Gardner, 1930; Dawson, 1944; 1945C La Jolla, Calif, to Is. Clarion, Revilla Gigedo x'\rch • Gulf of Calif. CODIUM Ritteri Setchell & Gardner Setchell & Gardner, 1920 Kodiak Is., Alaska to Vancouver Is., B. C. PIalimeda discoidea Decaisne Dawson, 1944; Taylor, 1945 Is. Angel de la Guarda, Gulf of Calif, to Golfo Dulce Costa Rica ’ Halimeda Opuntia (Linnaeus) Lamouroux Setchell & Gardner, 1930; Taylor, 1945 Is. Guadalupe, Baja Calif.; Clarion, Revilla Gigedo Arch. Halimeda Tuna (Ellis & Solander) Lamouroux Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Chlorodesmis mexicana Taylor Taylor, 1945; Chlorodesmis comosa in Setchell & Gard- ner, 1930 Is. Guadalupe, Baja Calif, to Tangola-Tangola, Oaxaca 19 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 PHAEOPHYCEAE (BROWN ALGAE) Order ECTOC ARP ALES Fam. Ectocarpaceae Pylaiella Gardneri Collins Smith, 1944 San Francisco to Carmel, Calif. Pylaiella littoralis (Linnaeus) Kjellman Smith, 1944 Bering Sea to San Pedro, Calif. Pylaiella tenella Setchell & Gardner Smith, 1944 Neah Bay, Wash. ; Monterey, Calif. Pylaiella unilateralis Setchell & Gardner Setchell & Gardner, 1925 Coos Bay, Oregon Pylaiella washingtonensis Jao Jao, 1937 Seattle, Wash. Ectocarpus acuminatus Saunders Smith, 1944 Pacific Grove to San Pedro, Calif. Ectocarpus acutus Setchell & Gardner Smith, 1944 Puget Sound to Carmel, Calif. Ectocarpus affinis Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Ectocarpus breviarticulatus J. Agardh Setchell & Gardner, 1925 ; 1930 Is. Guadalupe, Baja Calif.; San Agustin, Oaxaca Ectocarpus Bryantii Setchell & Gardner Dawson, 1944 La Paz, Baja Calif. Ectocarpus chantransioides Setchell & Gardner Setchell & Gardner, 1925 Santa Monica, Calif. 20 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ectocarpus chitonicola Saunders Smith, 1944 Monterey Peninsula, Calif. Ectocarpus commensalis Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. Ectocarpus confervoides (Roth) Le Tolis Setchell & Gardner, 1925 Yakutat Bay, Alaska to Whidbey Is., Wash. Ectocartos confervoides f. PARVUS (Saunders) Setchell & Gardner Setchell & Gardner, 1925 San Francisco to San Diego, Calif. Ectocarpus confervoides f. pygmaeus (Areschoug) Kiell- man a / j Smith, 1944; Dawson, 1945E Shumagin Is Alaska to Carmel, Calif.; Punta Descanso Baja Cahf. Ectocarpus confervoides f. typicus Kuckuck Setchell & Gardner, 1925 Juneau, Alaska to San Francisco. Calif. Ectocarpus corticulatus Saunders Smith, 1944 Popof Is., Alaska to San Pedro, Calif. Ectocarpus cylindricus Saunders Smith, 1944 Monterey Peninsula, Calif. Ectocarpus cylindricus f. codiophilus Setchell & Gard- ner Smith, 1944; Dawson, 1945B Monterey Peninsula; La Jolla, Calif. Ectocarpus Duchassaingianus Grunow Setchell & Gardner, 1930; Taylor 1945 Is. Guadalupe Baja Calif. ,• Is. Marla Magdalena, Nay- Hrit , Is. Socorro, Revilla Gigedo Arch. Ectocarpus ellipticus Saunders Smith, 1944 Monterey Peninsula, Calif. Ectocarpus ensenadanus Gardner Gardner, 1940 Ensenada, Baja Calif. Ectocarpus eramosus Setchell & Gardner Setchell & Gardner, 1925 Tomales Bay, Calif. 21 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Acadei^ii of Sciences Ectocarpus flagelliferus Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Ectocarpus flocculiformis Setchell & Gardner Setchell & Gardner, 1925 La Jolla, Calif. Ectocarpus fructuosus Setchell & Gardner Setchell & Gardner, 1925 Moss Beach, San Mateo Co., Calif. Ectocarpus globifer Kiitzing Setchell & Gardner, 1925 San Pedro to La Jolla, Calif. Ectocarpus gonodioides Setchell & Gardner Smith, 1944; Dawson, 1944 Carmel, Calif. ; Smith Is., Gulf of Calif. Ectocarpus granulosoides Setchell & Gardner Smith, 1944; Dawson, 1945_B Monterey to La Jolla, Calif. Ectocarpus granulosoides var. pygmaeus Setchell & Gard- ner Setchell & Gardner, 1937 Is. San Martin, Baja Calif. Ectocarpus granulosus (J. E. Smith) C. Agardh Smith, 1944; Dawson, 1945B ; 1945E ^ Puget Sound, Wash, to Punta Descanso, Baja Calit. Ectocarpus Hancockii Dawson Dawson, 1944 Turner’s Is., Gulf of Calif. Ectoc-4.rpus hemisphericus Saunders Setchell & Gardner, 1925 San Pedro to San Diego, Calif. Ectocarpus fiemisphericus f. minor Saundeis Setchell & Gardner, 1925 ; Dawson, 1945B Southern Calif. Ectocarpus isopodicola Dawson Dawson, 1946 Newport Bay, Calif. Ectocarpus luteolus Sauvageau Setchell & Gardner, 1925 San Francisco, Calif. 22 Memoirs. So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ectocarpus Mesogloiae Setchell & Gardner Smith, 1944 Carmel, Calif. Ectocarpus Mitchellae Harvey Setchell & Gardner, 1925; Dawson, 1944 Southern Calif, to San Jose del Cabo, Baja Calif.; Punta Pehasco, Sonora Ectocarpus mucronatus Saunders Setchell & Gardner, 1925 ; Dawson 1944 Vancouver Is, B. C. to San Pedri, Calif. ; Punta Pen- asco, Sonora Ectocarpus oviger Harvev Smith, 1944 Puget Sound to Carmel, Calif. Ectocarpus Parksii Setchell & Gardner Setchell & Gardner, 1925 San Francisco Bay, Calif. Ectocarpus Saundersii Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. Ectocarpus siliculosus (Dillwyn) Lyngbye Setchell & Gardner, 1925; Sanborn & Doty, 1946 Coos Bay, Oregon to San Francisco Bay, Calif. Ectocar]^s siliculosus f. SUBULATUS (Kutzing) Setchell & Gardner Setchell & Gardner, 1925 San Francisco Bay, Calif. Ectocarpus simulans Setchell & Gardner Smith, 1944 iMonterey, Calif. Ectocarpus socialis Setghell & Gardner Setchell & Gardner, 1925; Dawson, 1945B Southern Calif. Ectocarpus sonorensis Dawson Dawson, 1944 Guaymas, Sonora Ectocarpus Taoniae Setchell & Gardner Setchell & Gardner, 1925 San Pedro, Calif. ' Ectocarpus terminalis Kutzing Setchell & Gardner, 1925 Unalaska, Alaska to Laguna Beach, Calif. 23 Vol. 3, Part 1, 1946 Memoiks, So. Calif. Academy of Sciekces Ectocarpus tomentosus (Hudson) Lyngbye Smith, 1944 Kodiak Is., Alaska to Laguna Beach, Caht Ectocarpus variabilis (Saunders) G. M. Smith Smith, 1944; Dawson, 1945E; Ectocarpus conferuoides f, variabilis in Dawson, 1944 ^ ^ i-r Puget Sound, Wash, to Punta Descanso, Baja Caht.; Is. Tiburon, Gulf of Calif. Streblonema aecidioides f. PACiFicuM Setchell & Gardner Setchell & Gardner, 1925 Neah Bay, Wash. Streblonema anomalum Setchell & Gardner Smith, 1944 Monterey; San Pedro, Calif. Streblonema codicola Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. 5’treblonema corymbiferum Setchell & Gardner Smith, 1944 Monterey ; San Pedro, Calif. Streblonema Desmarestiae Gardner Gardner, 1940 San Juan Is., Wash. Streblonema evagatum Setchell & Gardner Smith, 1944 Monterey, Calif. Streblonema investiens (Collins) Setchell & Gardner Setchell & Gardner, 1925 ; Dawson, 1945B San Pedro to La Jolla, Calif. Streblonema irregulare Saunders Setchell & Gardner, 1925 Sitka, Alaska Streblonema Johnstonae Setchell & Gardner Setchell & Gardner, 1925 San Pedro, Calif. Streblonema minutissium Saunders Setchell & Gardner, 1925 Sitka, Alaska Streblonema myrionematotdes Setchell & Gardner Setchell & Gardner, 1925 Moss Beach, San Mateo Co., Calif. 24 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Streblonema pacificum Saunders Setchell & Gardner, 1925 Yakutat Bay, Alaska to San Francisco Bay, Calif, Streblonema penetrale Setchell & Gardner Smith, 1944 Pacific Grove, Calif. Streblonema Porphyrae Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. Streblonema rugosum Setchell & Gardner Setchell & Gardner, 1925 Friday Harbor, Wash. Streblonema scabiosum Setchell & Gardner Setchell & Gardner, 1925 San Francisco, Calif. Streblonema transfixum Setchell & Gardner Setchell & Gardner, 1925 San Pedro, Calif. Streblonema vorax Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Fam. Ralfsiaceae Ralfsia californica Setchell & Gardner Setchell & Gardner, 1925; Dawson, 1944; Taylor 1945 Central CahF; Is. Tiburon to Is. Espiritu Santo, Gulf of Calif. ; Bahia Tenacatita, Jalisco Rali'Sia clavata (Carmichael) Crouan Setchell & Gardner, 1925 Unalaska Bay, Alaska Ralfsia FUNGiFORMis (Gunnerus) Setchell & Gardner Setchell & Gardner, 1925; Sanborn & Doty 1946 Bering Sea to Coos Bay, Oregon Ralfsia Hancockii Dawson Dawson, 1944 San Jose del Cabo, Baja Calif. Ralfsia hesperia Setchell & Gardner Smith, 1944 Carmel; Corona del Mar, Calif. Ralfsia occidentalis Hollenberg Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. 25 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences Ralfsia PACIFICA Hollcnberg (ms) Smith, 1944; Dawson, 1944 Unalaska, Alaska to Baja Calif. northern Gulf of Calif. Hapterophycus canaliculatus Setchell & Gardner Hollenberg, 1941 -d • r' rf Redondo, Calif, to Punta Banda, Baja Caht. Lithoderma fatiscens Areschoug Setchell & Gardner, 1925 Bering Sea ; Unalaska, Alaska Hapalospongidion gelatinosum Saunders Hollenberg, 1942; Smith, 1944 ^ Carmel, Calif, to Punta Banda, Baja Calif. Ian, Guerrero Bahia Petat- Fam. Elachistaceae Halothrix lumbricalis (Kiitzing) Reinke Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Elachistea fucicola (Velley) Areschoug Setchell & Gardner, 1925 Sitka, Alaska to Coos Bay, Oregon Elachistea lubrica Ruprecht Setchell & Gardner, 1925 Prince William Sound to Wrangell, Alaska Gonodia Johnstonii Setchell & Gardner Dawson, 1944 Is. San Marcos, Gulf of Calif. Gonodia Marchantae Setchell & Gardner Dawson, 1944 La Paz, Baja Calif. Fam. Sphacelariaceae Sphacelaria brevicorne Setchell & Gardner Dawson, 1944 ; Setchell & Gardner, 1925 La Paz and vicinity, Baja Calif. Sphacelaria californica Sauvageau Setchell & Gardner, 1925 San Pedro to San Diego, Calif. Sphacelaria didichotoma Saunders Smith, 1944 Monterey to southern Calif. 26 ^moirs, So. Calif. Acadexmy of Sciences Vol. 3, Part 1, 1946 Sphacelaria furcigera Kiitzing' Setchell & Gardner, 1930; Dawson, 1944 Baja cii?"'' Guadalupe; La Paz, Sphacelaria Hancockii Dawson Dawson. 1944 Turner’s Is., Gulf of Calif.- Calif. San Jose del Cabo, Baja Sphacelaria Masonii Setchell & Gardner Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Sphacelaria mexicana Taylor Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. Sphacelaria novae-hollandiae Sonder Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Sphacelaria racemosa Greville Setchell & Gardner. 1925 Bering Sea to Whidbey Is., A-Vash. Sph.\celaria subfusca Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska to Redondo, Calif. Order CUTLERIALES Fam. Cutleriaceae Cutleria Hancockii Dawson Dawson, 1944 Is. Tiburon, Gulf of Calif. Order TILOPTERIDALES Fam. Tilopteridaceae Masonophycus paradoxa Setchell & Gardner Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. 27 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Order DICTYOTALES Fam. Dictyotaceae Dictyota Binghamiae J. Agardh Setchell & Gardner, 1925; Taylor, 1945^ Southern Calif, to Bahia San Bartolome, Baja Cahf. Is. Secas. Panama Dictyota concrescens Taylor Taylor, 1945 Cabo San Lazaro, Baja Calif. Dictyota crenulata J. Agardh Dawson, 1944; Taylor, 1945 ^ -o' r, Cape district, Baja Calif, to Puerto Culebra, Costa R.ca Dictyota cribrosa Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Dictyota divaricata Lamouroux, prox. Taylor, 1945 t-, i ' -r Is. Socorro, Revilla Gigedo Arch.; Bahia Tenacatita, Jalisco Dictyota flabellata (Collins) Setchell & Gardner Smith, 1944; Taylor, 1945 Monterey to La Jolla, Calif.; Puerto Culebra, Costa Rica ; Is. Secas, Panama Dictyota hesperia Setchell & Gardner Dawson, 1944 Northern Gulf of Calif. Dictyota Johnstonii Setchell & Gardner Dawson, 1944 Northern Gulf of Calif. Dictyota Masonii Setchell & Gardner Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Dictyota Vivesii Howe Dawson, 1944; Taylor, 1945 _ Punta Gorda ; Cabo San Lazaro, Baja Calif., Magdalena, Nayarit Is. Maria Dictyopteris delicatula Lamouroux , • o in Taylor, 1939; 1945; Neurocarpus delicatula m Setchell & Gardner, 1925 _ Is. Clarion ; Is. Socorro, Revilla Gigedo Arch. ; Clipper- ton Is. 28 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Dictyopteris Johnstonei Gardner Gardner, 1940 Santa Catalina Is., Calif. Dictyopteris zonarioides Farlow Neurocarpus zonarioides in Setchell & Gardner, 1925; Dawson, 1944 Southern Calif, to San Jose del Cabo, Baja Calif. ; north- ern Gulf of Calif. Taonia Lennebackerae Farlow Setchell & Gardner, 1925; Taylor, 1945 Southern Calif, to Bahia San Bartolome, Baja Calif. Syringoderma abyssicola (Setchell & Gardner) Levring Levring, 1940; Chlanidophora abyssicola in Setchell & Gardner, 1925 San Juan Is., Wash. ZoNARiA Farlowii Setchell & Gardner Setchell & Gardner, 1925; 1930; Taylor, 1945 Southern Calif, to Bahia Santa Maria, Baja Calif. PococKiELLA VARiEGATA (Lamouroux) Papeiifuss Taylor, 1945; Zonaria variegata in Taylor, 1939 Is. Clarion ; Is. Socorro, Revilla Gigedo Arch. ; Clipper- ton Is. Padina Durvillaei Bory Dawson, 1944; Taylor, 1945 Is. Cedros, Baja Calif, to Panama Padina caulescens Thivy Taylor, 1945 Is. Marfa Magdalena, Nayarit Padina crispata Thivy Taylor, 1945 Is. Maria Madre, Nayarit; Golfo Dulce, Costa Rica; Bahia Honda, Panama Padina mexicana Dawson Dawson, 1944 Turner’s Is., Gulf of Calif. Padina tetrastromatica Hauck Setchell & Gardner, 1930 Is. Maria Madre, Nayarit ? 29 Memoirs, So, Calif. Academy of Sciences Vol. 3, Part 1, 1946 Order CHORDARIALES Fam. Corynophloeaceae Petrospongium rugosum (Okamura) Setchell & Gardner Smith, 1944 San Mateo Co. to San Diego, Calif. Leathesia difformis (Linnaeus) Areschoug Smith, 1944 Bering Sea to San Pedro, Calif. Leathesia nana Setchell & Gardner Smith, 1944 Monterey Peninsula, Galif. Fam. Myrionemataceae Myrionema attenuatum Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. Myrionema balticum f. californicum Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. Myrionema balticum f. pedicellatum Setchell & Gardner Setchell & Gardner, 1925 Point Carmel, Calif. Myrionema compsonematoides Setchell & Gardner Setchell & Gardner, 1925 Friday Harbor, Wash. Myrionema corunnae f. angulatum Setchell & Gardner Setchell & Gardner, 1925 San Francisco, Calif. Myrionema corunnae f. sterile Setchell & Gardner Smith, 1944 Carmel, Calif. Myrionema corunnae f. uniforme Setchell & Gardner Setchell & Gardner, 1925 San Mateo Co., Calif. Myrionema foecundum f. ramulosum Setchell & Gardner Setchell & Gardner, 1925 Friday Harbor, Wash, 30 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Myrionema foecundum f. SIMPLICISSIMUM Setchell & Gard- ner Setchell & Gardner, 1925 Kodiak Is., Alaska to central California Myrionema foecundum f. subulatum Setchell & Gardner Setchell & Gardner, 1925 San Francisco, Calif. Myrionema globosum f. affine Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska to Point Carmel, Calif. Myrionema minutissimum Setchell & Gardner Setchell & Gardner, 1925 San Francisco, Calif. Myrionema obscurum Setchell & Gardner Setchell & Gardner, 1925 Moss Beach, San Mateo Co., Calif. Myrionema phyllophyllum Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Myrionema primarium Setchell & Gardner Smith, 1944 Alaska to Carmel, Calif. Myrionema setiferum Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Myrionema strangulans Greville Smith, 1944 Sitka, Alaska to Carmel, Calif. CoMPSONEMA CONIFERUM Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. CoMPSONEMA DUBIUM Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. CoMPSONEMA FASCICULATUM Setchell & Gardner Smith, 1944 Pacific Grove, Calif. CoMPSONEMA FRUCTUOSUM Setchell & Gardner Setchell & Gardner, 1925 Tomales Bay, Calif. CoMPSONEMA iMMiXTUM Setchell & Gardner Dawson, 1944 Is. Partida, Gulf of Calif. 31 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 CoMPSONEMA iNTRicATUM Setchell & Gardner Smith, 1944 Carmel, Calif. CoMPSONEMA MYRIONEMATOIDES Setchell & Gardner Smith, 1944 Pacific Grove, Calif. CoMPSONEMA NUMMULOiDES Setchell & Gaidiier Setchell & Gardner, 1925 Moss Beach, San Mateo Co., Calif. CoMPSONEMA PUSILLUM Setchell & Gardner Smith, 1944 Carmel, Calif. CoMPSONEMA RAMULOSUM Setchell & Gardner Smith, 1944 Carmel, Calif. CoMPSONEMA SECUNDUM Setchell & Gardner Smith, 1944 Moclips, Wash, to Carmel, Calif. CoMPSONEMA SERPENS Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. CoMPSONEMA SESSILE Setchell & Gardner Setchell & Gardner, 1925 Neah Bay, Wash. CoMPSONEMA SPECIOSUM f. PiLiFERUM Setchell & Gardner Setchell & Gardner, 1925 Moclips, Wash. CoMPSONEMA SPORANGIIFERUM Setchell & Gardner Setchell & Gardner, 1925 Neah Bay, Wash. CoMPSONEMA STREBLONEMATOIDES Setchell & Gardner Setchell & Gardner, 1925 Tomales Bay, Calif. CoMPSONEMA TENUE Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Fam. Chordariaceae Aegira virescens (Carmichael) Setchell & Gardner Setchell & Gardner, 1925 ; Dawson, 1945 Shumagin Is. to Sitka, Alaska; La Jolla, Calif. 32 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Haplogloia Andersonii (Farlow) Levring Smith, 1944; Dawson, 1945E Sitka, Alaska to Cabo Colnett, Baja Calif. Haplogloia Kuckuckii Kylin Kylin, 1940 Sitka, Alaska to Friday Harbor, Wash. Chordaria dissessa Setchell & Gardner Setchell & Gardner, 1925 Orcas Is., Wash. Chordaria flagelliformis (Miiller) C. Aeardh Setchell & Gardner, 1925 Bering Sea to Sitka, Alaska Chordaria gracilis Setchell & Gardner Setchell & Gardner, 1925 Amaknak Is., Alaska Saundersella simplex (Saunders) Kvlin Kylin, 1940 Cook Inlet, Alaska to Vancouver, B. C. Fam. Heterochordariaceae Heterochordaria abietina (Ruprecht) Setchell & Gardner Smith, 1944 Bering Sea to Point Conception, Calif. Fam. Spermatochnaceae Nemacystus Brandegeei (Setchell & Gardner) Kvlin Dawson, 1944 Punta Penasco, Sonora; La Paz, Baja Calif. Order SPOROCHNALES Fam. Sporochnaceae Sporochnus pedunculatus (Hudson) C. Agardh Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Order DESMARESTIALES Fam. Desmarestiaceae Desmarestia farcta Setchell & Gardner Setchell & Gardner, 1925 Argyle, San Juan Co., Wash. 33 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Desmarestia filamentosa Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Desmarestia foliacea Pease Setchell & Gardner, 1925 San Juan Co., Wash. Desmarestia herbacea (Turner) Lamouroux Smith, 1944; Setchell & Gardner, 1930; Taylor, 1945; Dawson, 1945E Kodiak Is., Alaska to Is. Cedros, Baja Calif. Desmarestia intermedia Postels & Ruprecht Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Desmarestia Jordanii Gardner Gardner, 1940 Ventura, Calif. Desmarestia latifrons (Ruprecht) Kutzing Smith, 1944 Coos Bay, Oregon to Point Sur, Calif. Desmarestia latissima Setchell & Gardner Setchell & Gardner, 1925 San Juan Co., Wash. Desmarestia ligulata (Lightfoot) Lamouroux Setchell & Gardner^ 1925 San Juan Is., Wash. Desmarestia linearis Gardner Smith, 1944 Monterey Peninsula, Calif. Desmarestia media (C. Agardh) Greville Setchell & Gardner, 1925 Unalaska, Alaska Desmarestia media var. tenuis Setchell & Gardner Setchell & Gardner, 1925 Juneau, Alaska to Puget Sound, Wash. Desmarestia mexicana Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Desmarestia munda Setchell & Gardner Smith, 1944; Dawson, 1945A Puget Sound, Wash, to Is. Cedros, Baja Calif. 34 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Desmarestia PACIFICA Setchcll & Gardner Setchell & Gardner, 1925; 1930 Santa Catalina Is,. Calif. ; Is. Guadalupe, Baja Calif. ? Desmarestia viridis (Muller) Lamouroux Smith, 1944 Carmel, Calif. Order PUNCTARIALES Fam. Punctariaceae PuNCTARiA CHARTACEA Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska PuNCTARiA EXPANSA Setchell & Gardner Setchell & Gardner, 1925 Whidbey Is., Wash. PuNCTARiA HESPERIA Sctchell & Gardner Smith, 1944 Victoria, B. C.; Monterey; San Pedro, Calif. PuNCTARiA LATiFOLiA Greville Setchell & Gardner, 1925 Metlacatla; Baranoff Is., Alaska PUNCTARIA LOBATA (Saunders) Setchell & Gardner Setchell & Gardner, 1925 Prince William Sound to Sitka, Alaska PUNCTARIA OCCIDENTALIS Setcliell & Gardner Smith, 1944 Monterey, Calif. PUNCTARIA ORBICULATA Jao Jao, 1937 San Juan Is., Wash. PUNCTARIA PLANTAGINEA Greville Saunders, 1901 ; Setchell & Gardner, 1925 Yakutat Bay, Alaska ? Halorhipis Winstonii (Anderson) Saunders Smith, 1944 Monterey Peninsula, Calif. Pam. Asperococcaceae SoRANTHERA ULVoiDEA Postels & Ruprecht Smith, 1944 Unalaska, Alaska to southern Calif. 35 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 SoRANTHERA uLVOiDEA f. DiFFORMis Sctchell & Gardner Setchell & Gardner, 1925 Bering Sea to Cape Flattery, Wash. Myelophycus intestinale Saunders Setchell & Gardner, 1925 Shumagin Is., Alaska to Puget Sound, Wash. Myelophycus intestinale f. tenue Setchell & Gardner Setchell & Gardner, 1925 Coos Bay, Oregon to central Calif. Fam. Scytosiphonaceae ScYTOSiPHON Lomentaria (Lyngbye) J. Agardh Smith, 1944; Dawson, 1945E Bering Sea to Punta Descanso, Baja Calif. ScYTOSiPHON Lomentaria f. cylindricus maculatus Setchell & Gardner Setchell & Gardner, 1925 ^ San Francisco, Calif. ScYTOSiPHON Lomentaria f. typica Rosenvinge Smith, 1944; Dawson, 1945E Bering Sea to Punta Descanso, Baja Cahf. ScYTOSiPHON Lomentaria var. complanatus Rosenvinge Smith, 1944 Cape Arago, Oregon to Carmel, Calif. Ilea Fascia (Muller) Fries Smith, 1944; Dawson, 1945E Unalaska, Alaska to’Cabo Colnett, Baja Cahf. Ilea Fascia f. caespitosa Setchell & Gardner Setchell & Gardner, 1925 Alaska Ilea Fascia f. debilis Setchell & Gardner Setchell & Gardner, 1925 San Juan Is., Wash. Ilea Fascia f. typica Setchell & Gardner Setchell & Gardner, 1925 Puget Sound, Wash, to southern Calif. Ilea Fascia f. zosterifolia Setchell & Gardner Smith, 1944 Monterey Peninsula, Calif. Endarachne Binghamiae J. Agardh Setchell & Gardner, 1925 Southern Calif, to Ensenada, Baja Calif. 36 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 CoLPOMENiA RAMOSA Taylor Taylor, 1945 Is, ^dros, Baja Calif.; Bahia Salinas; Port Parker, Costa Rica CoLPOMENiA SINUOSA (Roth) Derbes & Solier Setchell & Gardner, 1925; 1930; Smith, 1944; Dawson, 1944; Taylor, 1945 Yakutat Bay, Alaska to Port Parker, Costa Rica COLPOMENIA SINUOSA f. DEFORMANS Setchell & Gardner Setchell & Gardner, 1925; Dawson, 1944; Taylor, 1945; Scytosiphon bullosus in Smith, 1944.’ Cook Inlet, Alaska to Bahia San Bartolome, Baja Calif. • Gulf of Calif. ’ COLPOMENIA SINUOSA f. EXPANSA Saunders Setchell & Gardner, 1925 Avalon, Santa Catalina Is., Calif. COLPOMENIA SINUOSA f. TUBERCULATA (Saunders) Setchell & Gardner Setchell & Gardner, 1925; Dawson, 1944 Unalaska, Alaska to La Paz, Baja Calif.; Gulf of Calif. Rosenvingea intricata (J. Agardh) Borgesen Dawson, 1944; Taylor, 1945 Bahia Tepoca, Sonora to Is. Socorro, Revilla Gigedo Arch. Hydroclathrus clathratus (Bory) Howe Dawson, 1944; 1945B Southern Calif, to central Mexico; southern Gulf of Calif. Fam. Coilodesmaceae Coilodesme bulligera Stroemfelt Setchell & Gardner, 1925 Shumagin Is., Alaska to Coos Bay, Oregon Coilodesme californica (Ruprecht) Kjellman Smith, 1944; Connell, 1928; Dawson, 1945C Departure Bay, B. C. to La Jolla, Calif. Coilodesme corrugata Setchell & Gardner Setchell & Gardner, 1925 Santa Catalina Is., Calif. Coilodesme Cystoseirae (Ruprecht) Setchell & Gardner Setchell & Gardner, 1925 Kukak Bay; Yakutat Bay, Alaska 37 Memoibs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 CoiLODESME POLYGNAMPTA Setchell & Gardner Setchell & Gardner, 1925 Amaknak Is., Unalaska, Alaska CoiLODESME RiGiDA Setchell 8l Gardner Setchell & Gardner, 1925 Redondo to San Diego, Calif. CoiLODESME siTCHENSis Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska Phaeostrophion irregulare Setchell & Gardner Setchell & Gardner, 1925 Coos Bay, Oregon ; Bolinas, Calif. Fam. Striariaceae Stictyosiphon tortilis (Ruprecht) Reinke Smith, 1944 Alaska; Monterey Peninsula, Calif. Fam. Chnoosporaceae Chnoospora PACIFICA J. Agardh Dawson, 1944 La Paz, Baja Calif, to St. Augustin, Oaxaca Chnoospora pannosa J. Agardh Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Fam. Ishigiaceae IsHiGE foliacea Okamura Dawson, 1944 Northern Gulf of Calif. Order DICTYOSIPHONALES Fam. Dictyosiphonaceae Dictyosiphon foeniculaceus (Hudson) Greville Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Dictyosiphon hippuroides (Lyngbye) Kutzing Setchell & Gardner, 1925 Bering Sea to Unalaska, Alaska 38 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences Dictyosiphon hispidus Kjellinan Setchell & Gardner, 1925 Orca, Alaska Dictyosiphon sinicola Gardner Gardner, 1940 Vancouver Is., B. C. ; Puget Sound, Wash. Dictyosiphon tenuis Setchell & Gardner Setchell & Gardner, 1925 Golofin Bay, Alaska Order LAMINARIALES Fam. Chordaceae Chorda Filum (Linnaeus) Lamouroux ^ Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Fam. Laminariaceae Laminaria Andersonii Eaton Smith, 1944 Whidbey Is., Wash, to Carmel, Calif. Laminaria complanata (Setchell & Gardner) Setchell Setchell & Gardner, 1925 Friday Harbor, Wash. Laminaria cuneifolia J. Agardh Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Laminaria CUNEIFOLIA f. amplissima Setchell & Gardner Setchell & Gardner, 1925 Sitka, Alaska to Cape Flattery, Wash. Laminaria cuneifolia f. angusta Setchell & Gardner Setchell & Gardner, 1925 Cape Flattery ; Whidbey Is., Wash. Laminaria cuneifolia f. subsimplex Setchell & Gardner Setchell & Gardner, 1925 Lower Puget Sound, Wash, Laminaria dentigera Kjellman Setchell & Gardner, 1925 Aleutian Islands, Alaska 39 Memoiks, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Laminaria ephemera Setchell Smith, 1944 , r- rr Puget Sound, Wash. ; Monterey Peninsula, Calif. Laminaria Farlowii Setchell Smith, 1944; Dawson, 1945E ^ Santa Cruz, Calif, to Cabo Colnett, Baja Calif. Laminaria longipes Bory Setchell & Gardner, 1925 Agattu Is. ; Kiska Is., Alaska Laminaria personata Setchell & Gardner Setchell & Gardner, 1925 Yakutat Bay to Sitka, Alaska Laminaria platymeris De la Pylaie Setchell & Gardner, 1925 Bering Sea to Straits of Juan de Fuca Laminaria saccharina (Linnaeus) Lamouroux Setchell & Gardner, 1925 Alaska to Coos Bay, Oregon Laminaria saccharina f. linearis J. Agardh Setchell & Gardner, 1925 Unga, Alaska to Puget Sound, Wash. Laminaria saccharini f. membranacea J. Agardh Setchell & Gardner, 1925 Alaska to Coos Bay, Oregon Laminaria Sinclairii (Harvey) Farlow Smith, 1944 Vancouver Is., B. C. to San Luis Obispo Co., Calif. Pleurophycus Gardneri Setchell & Saunders Setchell & Gardner, 1925 Yakutat Bay, Alaska to Coos Bay, Oregon Cyamathere triplicata (Postels & Ruprecht) J. Agardh Setchell & Gardnei , 1925 Bering Sea to Puget Sound, Wash. CosTARiA cosTATA (Turner) Saunders Smith, 1944 Shumagin Is., Alaska to San Pedro, Calif. Thalassiophyllum clathrus (Gmelin) Postels & Ruprecht Setchell & Gardner, 1925 Bering Sea to Straits of Juan de Fuca Agarum cribrosum Bory Setchell & Gardner, 1925 Bering Sea to San Juan Is., Wash. 40 Memoibs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Agarum fimbriatum Harvc}^ Setchell & Gardner, 1925 Puget Sound, Wash, to central Calif. Hedophyllum sessile (C. Agardh) Setchell Setchell & Gardner, 1925 Yakutat Bay, Alaska to Point Sur, Calif. Hedophyllum subsessile (Areschoug) Setchell Sanborn & Doty, 1946 Bering Sea ; Coos Bay, Oregon Arthrothamnus bifidus (Gmelin) T. Aeardh Setchell & Gardner, 1925 Aleutian Islands, Alaska Diciyoneurum californicum Ruprecht Smith, 1944 Vancouver Is., B. C. to San Luis Obispo Co., Calif. Dictyoneuropsis reticulata (Saunders) G. M Smith Smith, 1944 Monterey Peninsula, Calif. Nereo^y^^tis^I^etkeana (Mertens) Postels & Ruprecht Shumagin Is., Alaska to Santa Barbara, Calif. Postelsia palmaeformis Ruprecht Smith, 1944 Vancouver Is., B. C. to San Luis Obispo Co., Calif. Macrocystis integrifolia Bory Smith, 1944 Vancouver Is., B. C. to Carmel, Calif. Macrocystis pyrifera (Linnaeus) C. Aeardh Smith, 1944; Taylor, 1945 Sitka, Alaska to BaWa Magdalena, Baja Calif. • cast ashore on Is. Clarion, Revilla Gigedo Arch. Pelagophycus porra (Leman) Setchell Setchell & Gardner, 1925 Point Conception to San Diego, Calif. Lessoniopsis LITTORALIS (FaHow & Setchell) Reinke Smith, 1944 Sitka, Alaska to Carmel, Calif. Pam. Alariaceae Pterygophora californica Ruprecht Smith, 1944; Dawson, 1945E Vancouver Is, B. C. to Punta Descanso, Baja Calif. 41 iMemoirs. So. Calif. Academy of Sciences Vol. 3, Part 1, Alaria dolichorhachis Kjellman Setchell & Gardner, 1925 Agattu Is., Alaska Alaria fistulosa Postels & Ruprecht Setchell & Gardner, 1925 Bering Sea to Wrangell, Alaska Alaria fistulosa f. platyphylla Setchell Setchell & Gardner, 1925 Bering Sea to southeastern Alaska Alaria fistulosa f. stenophylla Setchell Setchell & Gardner, 1925 Bering Sea to southeastern Alaska Alaria lanceolata Kjellman Setchell & Gardner, 1925 Bering Sea to Sitka, Alaska Al.‘\ria marginata Postels & Ruprecht Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Ore. to Carmel, Calif. Alaria nana Schrader Smith, 1944 Vancouver Is., B. C. to Carmel, Calif. Alaria Pylaii (Bory) Greville Setchell & Gardner, 1925 Prince William Sound to Kodiak Is., Alaska Alaria tenuifolia Setchell^ Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Alaria tenuifolia f. typica Setchell Setchell & Gardner, 1925 Unalaska, Alaska Alaria tenuifolia f. amplior Setchell & Gardner Setchell & Gardner, 1925 Esquimault, B. C. to San Juan Is., Wash. Alaria valida Kjellman 8: Setchell Setchell & Gardner, 1925 Unga, Alaska to Puget Sound, Wash. Alaria valida f. longipes Setchell & Gardner Setchell & Gardner, 1925 Whidbey Is., Wash, Eisenia arborea Areschoug Setchell & Gardner, 1925 Redondo, Calif, to Cabo San Lazaro, Baja Calif. Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Eisenia ? desmarestioides Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Eisenia ? Masonii Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Egregia laevigata Setchell Srnith, 1944; Dawson, 1945E; 1946 Mon^rey; Point Conception, Calif, to Cabo Colnett, Baja Caht.; Bahia Los Angeles, Gulf of Calif. Egregia Menziesii (Turner) Areschouo- Smith, 1944 Vancouver Is., B. C. to Point Conception, Calif. Eam. Fucaceae Order FUCALES * Fucus EDENTATUS De la Pylaie Setchell & Gardner, 1925 Sitka, Alaska to Coos Bay, Oregon Fucus EDENTATUS f. AcuTus Gardner Setchell & Gardner, 1925 Bellingham, Wash. ’ Fucus EDENTATUS f. COSTATUS Gardner Setchell & Gardner, 1925 Lower Puget Sound, Wash. Fucus EDENTATUS f. DivARicATus Gardner Setchell & Gardner, 1925 Vancouver Is., B. C. ; Bellingham, Wash. Fucus EDENTATUS f. DivERGENs Gardner Setchell & Gardner, 1925 Kanaka Bay, San Juan Co., Wash. Fucus EDENTATUS f. HESPERius Gardner Setchell & Gardner, 1925 Cape Arago, Oregon Fucus EVANESCENS C. Agardh Setchell & Gardner, 1925 Bering Sea to Coos Bay, Oregon Fucus EVANESCENS f. coRNUTus Kjellmaii Setchell & Gardner, 1925 Yakutat Bay, Alaska 43 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fucus EVANESCENS f. CUNEATUS Gardner Setchell & Gardner, 1925 Coos Bay, Oregon Fucus EVANESCENS f. DENDROiDES Stroemfelt Setchell & Gardner, 1925 Agattu Is. to Sitka, Alaska Fucus EVANESCENS f. ECOSTATUS Gardner Setchell & Gardner, 1925 Coos Bay, Oregon Fucus EVANESCENS f. FLABELLATUS Gardner Setchell & Gardner, 1925 Bellingham, Wash. Fucus EVANESCENS f. LONGiFRUCTUS Setchell & Gardner Setchell & Gardner, 1925 Orca to Juneau, Alaska Fucus EVANSCENS f. MACROCEPHALUS Kjellman Setchell & Gardner, 1925 ; Connell, 1928 Bering Sea to Departure Bay, B. C. Fucus EVANSCENS f. MAGNiFicus Gardner Setchell & Gardner, 1925 Juneau, Alaska to Puget Sound, Wash. Fucus EVANESCENS f. MARGiNATUS Gardner Setchell & Gardner, 1925 Sitka, Alaska Fucus EVANESCENS f. NANUS Kjellman Setchell & Gardner, 1925 Yakutat Bay, Alaska to Puget Sound, Wash. Fucus EVANESCENS f. OREGONENSis Gardner Setchell & Gardner. 1925 Coos Bay, Oregon Fucus EVANESCENS f. PERGRANDis Kjellman Setchell & Gardner, 1925 Unalaska, Alaska to Puget Sound, Wash. Fucus EVANESCENS f. ROBUSTUS Setchell & Gardner Setchell & Gardner, 1925 Bering Sea to Friday Harbor, Wash. Fucus EVANESCENS f. RUDis Kjellman Setchell & Gardner, 1925 Bering Sea to Skagway, Alaska Fucus EVANESCENS f. STELLATUS Gardner Setchell & Gardner, 1925 Sackman’s Point, Kitsap Co., Wash. 44 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fucus EVANESCENS f. TYPicus Kjellman Setchell & Gardner, 1925 Harvester and Kodiak Is., Alaska Fucus FURCATUS C. Agardh Smith, 1944 Sitka, Alaska to San Luis Obispo Co., Calif. Fucus FURCATUS f. ABBREviATus Gardner Setchell & Gardner, 1925; Sanborn & Doty, 1946 San Juan Co., Wash, to Coos Bay, Oregon Fucus FURCATUS f. ANGusTus Gardner Setchell & Gardner, 1925 San Juan Is., Wash, to central Oregon Fucus FURCATUS f. coNTORTus Gardner Setchell & Gardner, 1925 Near Bellingham, Wash. Fucus FURCATUS f. coRNUTus Gardner Setchell & Gardner, 1925 Yakutat Bay, Alaska to Victoria, B. C. Fucus FURCATUS f. ELONGATus Gardner Setchell & Gardner, 1925 San Juan Is., Wash, to Coos Bay, Oregon Fucus FURCATUS f. LATiFRONs Gardner Setchell & Gardner, 1925 Ft. Ward, near Seattle, Wash. Fucus FURCATUS f. LINEARIS Gardner Setchell & Gardner, 1925 Tracy ton. Wash. Fucus FURCATUS f. LuxuRiANS Gardner Setcheh & Gardner, 1925; Smith, 1944; Sanborn & Doty, Coos Bay, Oregon to Oil Port, San Luis Obispo Co., Calif. Fucus FURCATUS f. NIGRICANS Gardner Setchell & Gardner, 1925 Cattle Point, San Juan Is., Wash. Fucus FURCATUS f. REFLEXus Gardner Setchell & Gardner, 1925 Pt. Defiance, Tacoma, Wash. Fucus FURCATUS f. RiGiDus Gardner Setchell and Gardner, 1925; Connell, 1928 Horswell Channel, B. C. to Whidbey Is., Wash. 45 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fucus FURCATUS f. TYPicus Gardner Setchell & Gardner, 1925 Straits of Juan de Fuca to Fort Ross, Calif. Fucus FURCATUS f. vARiABiLis Gardner Setchell & Gardner, 1925 ; Connell, 1928 Sitka, Alaska ; Campbell River, B. C. Fucus MEMBRANACEUS Gardner Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Fucus MEMBRANACEUS f. ABBREViATUS Gardner Setchell & Gardner, 1925 Sitka, Alaska Fucus MEMBRANACEUS f. ACUMiNATUS Gaidner Setchell & Gardner, 1925 Sitka, Alaska Fucus MEMBRANACEUS f. LATissiMUS Gardner Setchell & Gardner, 1925 Kodiak Is. to Sitka, Alaska Fucus MEMBRANACEUS f. LiMiTATUS Gardner Setchell & Gardner, 1925 Pt. Defiance, Tacoma, Wash. Fucus MEMBRANACEUS f. OBTUSus Gardner Setchell & Gardner, 1925 Sitka, Alaska Fucus MEMBRANACEUS f. TYPICUS Gardner Setchell & Gardner, 1925 Sitka, Alaska Fucus NiTENS Gardner Setchell & Gardner, 1925 San Francisco Bay, Calif. Fucus Parksii Gardner Gardner, 1940 Humbolt Bay; Eureka, Calif. Pelvetia fastigiata (J. Agardh) DeToni Smith, 1944; Sanborn & Doty, 1946; Dawson, 1945E; Connell, 1928 Horswell Channel, B. C.; Coos Bay, Oregon to Ense- nada, Baja Calif. Pelvetia fastigiata f. gracilis Setchell & Gardner Smith, 1944 Monterey Peninsula; Santa Catalina Is., Calif. 46 Memoirs, So. Calif. Academy of Sciences Vol, 3, Part 1, 1946 Pelvetiopsis arborescens Gardner Gardner, 1940 Point Carmel, Calif. Pelvetiopsis limitata (Setchell) Gardner Smith, 1944 Vancouver Is., B. C. to Carmel, Calif. Pelvetiopsis limitata f. lata Gardner Smith, 1944 Tomales Point to Monterey, Calif. Pelvetiopsis limitata f. typica Gardner Setchell & Gardner, 1925 Vancouver Is., B. C. to central Calif. Hesperophycus Harveyanus (Decaisne) Setchell & Gard- ner Smith, 1944; Dawson, 1945E Santa Cruz, Calif, to Ensenada, Baja Calif. Fam. Sargassaceae Blossevillea Brandegeei Setchell & Gardner Setchell & Gardner, 1930; Dawson, 1945C La Jolla, Calif, to Is. Guadalupe, Baja Calif, Cystophyllum geminatum (C. Affardh) T Arardh Setchell & Gardner, 1925 Bering Sea to Puget Sound, Wash. Halidrys dioica Gardner Setchell & Gardner, 1925; Taylor, 1945; Dawson, 1945E Redondo, Calif, to Is. Cedros, Baja Calif. Cystoseira neglecta Setchell & Gardner Setchell & Gardner, 1925; Dawson, 1945C; 1945E Santa Catalina Is.; La Jolla, Calif.; Cabo’Colnett, Baja Calif. Cystoseira osmundacea (Menzies) C. Agardh Smith, 1944; Taylor, 1945; Dawson, 1945E Seaside, Oregon to Punta San Bartolome, Baja Calif. Cystoseira Setchellii Gardner Setchell & Gardner, 1925 Redondo to San Diego, Calif, Sargassum acinacifolium Setchell & Gardner Dawson, 1944 Puerto Libertad to Guaymas, Sonora Sargassum Agardhianum Farlow Setchell & Gardner, 1925; Dawson, 1945E Southern Calif, to Ensenada, Baja Calif. 47 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Sargassum asymmetricum Dawson Dawson, 1944 Punta Penasco, Sonora to Is. Tiburon, Gulf of Calif. Sargassum Brandegeei Setchell & Gardner Dawson, 1944; Taylor, 1945 Puerto Libertad to Guaymas, Sonora ; Golfo Dulce, Gosta Pica ? Sargassum Camouii Dawson Dawson, 1944 Is. Tiburon, Gulf of Calif. Sargassum herporhizum Setchell & Gardner Dawson, 1944 . _ r r- rr George Is. ; Is. San Pedro Martir, Gulf of Calif. Sargassum horridum Setchell & Gardner Dawson, 1944 Vicinity of La Paz, Baja Calif. Sargassum Howellii Setchell & Gardner Setchell, 1937 ; Taylor, 1945 , Is. Soccoro : Is. Clarion, Revilla Gigedo Arch. Sargassum Johnstonii Setchell & Gardner Dawson, 1944 i Punta Penasco, Sonora to Bahia Agua Verde, Baja Cal . Sargassum Johnstonii f. gracile Setchell & Gardner Dawson, 1944 Punta Penasco to Guaymas, Sonora Sargassum lapazeanum Setchell & Gardner Dawson, 1944 Guaymas, Sonora to La Paz, Baja Calii. Sargassum Liebmanni J. Agardh Taylor, 1945 , „ Is. Maria Magdalena, Nayarit to Bahia Honda, Panama Sargassum Macdougalii Dawson Dawson, 1944 Puerto Libertad ; Guaymas, Sonora Sargassum Palmeri Grunow Setchell & Gardner, 1925; 1930 Santa Cruz, Calif, to Is. Guadalupe, Baja Calit. Sargassum sinicola Setchell & Gardner l^)cL'WSOH 1 Punta Penasco, Sonora to La Paz, Baja Calif. ; Is. Guada- lupe, Baja Calif. 48 Memoirs. So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 RHODOPHYCEAE (RED ALGAE) Order BANGIALES Fam. Goniotrichaceae Goniotrichum cornu-cervi (Reinsch) Hauck Kylin, 1925 Friday Harbor, Wash. Goniotrichum elegans (Chauvin) Zanardini Smith, 1944; Dawson, 1944; Goniotrichum Alsidii in Taylor, 1945 Friday Harbor, Wash, to Is. Maria Madre, Nayarit Goniotrichopsis sublittoralis G. M. Smith Smith, 1944 Monterey, Calif. Fam. Erythrotrichiaceae Erythropeltis discigera (Berthold) Schmitz Dawson, 1944 Is. Tiburon, Gulf of Calif. Erythrotrichia californica Kylin Smith, 1944; Dawson, 1944 Monterey, Calif.; Is. Tiburon, Gulf of Calif. Erythrotrichia carnea (Dillwyn) J. Agardh Smith, 1944; Dawson, 1944; 1945B Monterey; San Diego, Calif.; Gulf of Calif. Erythrotrichia ceramicola (Lyngbye) Areschoug Collins, 1913 Ucluelet, Vancouver Is., B. C. Erythrotrichia Kylinii Gardner Gardner, 1927 Bering Sea to Puget Sound, Wash. Erythrotrichia Parksii Gardner Gardner, 1927 Eureka, Calif. Erythrotrichia Parksii var, minor Gardner Gardner, 1927 Neah Bay, Wash. 49 Memoirs. So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Krythrotrichia polymorpha Howe Setchell & Gardner, 1924 Gulf of Calif. Krythrotrichia porphyroides Gardner Gardner, 1927 San Francisco, Calif. Krythrotrichia pulvinata Gardner Smith, 1944 Monterey, Calif. Krythrotrichia tetraseriata Gardner Gardner, 1927 San Pedro, Calif. Krythrotrichia Welwitschii (Ruprecht) Batters Smith, 1944 Monterey, Calif. Krythrocladia irregularis Rosenvinge Smith, 1944; Dawson, 1944 Friday Harbor, Wash. ; Monterey, Cahf . ; Turner s Is. Gulf of Calif. Krythrocladia subintegra Rosenvinge Smith, 1944; Dawson, 1945K Friday Harbor, Wash.; Monterey, canso, Baja Calif. Calif.; Punta Des Fam. Bangiaceae Bangia fuscopurpurea (Dillwyn) Lyngbye Kylin, 1925 ; Taylor, 1945 Orcas Is., Wash. ; Port Parker, Costa Rica Bangia maxima Gardner Gardner, 1927 Bolinas, Calif. l^ANGiA TENUIS Gardner Gardner, 1927 Orcas Is., Wash. Bangia vermicularis Harvey Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Oregon to Carmel, Calif. Porphyra abyssicola Kjellman Kylin, 1925 Friday Harbor, Wash. Porphyra amplissima (Kjellman) Setchell & Hus Kylin, 1925 ; Setchell & Gardner, 1903 Amaknak Is., Alaska to Friday Harbor, Wash. 50 Memoirs, So, Calif. Academy of Sciences Vol. 3, Part 1, 1946 PoRPHYRA LAciNiATA (Lightfoot) C. Agardh Setchell & Gardner, 1903 Amaknak Is. to Sitka, Alaska PoRPHYRA LANCEOLATA (Setchell & Hus) G. M. Smith Smith, 1944 Chehalis Bay, Wash, to Carmel, Calif. PORPHYRA MINIATA f. CUNEIFORMIS Setchell & HuS Smith, 1944 Gulf of Alaska; Coupeville, Wash.; Monterey, Calif, PoRPHYRA NAiADUM Aiiderson Smith, 1944; Taylor, 1945; Dawson, 1945E Vancouver Is., B. C. to Cabo San Lazaro, Baja Calif. Port Parker, Costa Rica PoRPHYRA Nereocystis Anderson Smith, 1944 Uyak Bay, Alaska to San Pedro, Calif. PORPHYRA OCCIDENTALIS Setchell & HuS Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Oregon; Carmel Bay, Calif. PORPHYRA PERFORATA J. Agardh Smith, 1944; Dawson, 1944; 1945E Shumagin Is., Alaska to Cabo Colnett, Baja Calif. ; Bahia Agua Verde, Baja Calif. PORPHYRA PERFORATA f. SEGREGATA Setchell & HuS Kylin, 1925 Washington to northern Calif. PoRPHYRA PULCHRA Hollenberg Smith, 1944 Santa Cruz to Monterey, Calif. PoRPHYRA scHizoPHYLLA Hollenbcrg Smith, 1944 Pescadero Point, Calif. PoRPHYRA Thuretii Setchell & Dawson Dawson, 1944; Smith, 1944 Santa Cruz; Monterey, Calif.; Bahia San Felipe, Baja Calif. PoRPHYRA TENUISSIMA (Stroemfelt) Setchell & Hus Setchell & Gardner, 1903 Shumagin Is. ; Yakutat Bay, Alaska PoRPHYi^ UMBILICALIS (Setchell & Gardner) Collins Collins, 1913; Porphyra laciniata f. umbilicalis in Setch- ell & Gardner, 1903 Victoria, B. C. ? 51 Vol. 3, Part 1, 1946 Memoirs. So. Caeti'. Ac'aoemy of Sciences PORPHYRA VARIEGATA KjelllMan Smith, 1944 r- Puget Sound, Wash. ; Monterey, Calif PORPHYRELLA CALIFORNICA Hollenbefg Sy’?HSbo?!^Santa Cruz Is., Calif.; Southern Calif PoRPHYRELLA Gardneri Smith & Hollenberg Smith, 1944; Hollenberg, 1945 _ ^ ^ ^ Cape Arago, Oregon; Duxbury Reef to Monteiey, Calif. PORPHYROPSIS COCCINEA (J. Agardh) Rosenvmge Kylin, 1925 Friday Harbor, Wash. Ordor NEMALIONALES Fam. Acrochaetiaceae Acrochaetium Amphiroae (Drew) Pap^fuss Papenfuss, 1945; Dawson, 1945E; Rhodochorton Am- phiroae in Dawson, 1945B Monterey, Calif, to Cabo Colnett, Baja Calif. Acrochaetium angustum (Drew) Papenfuss Papenfuss, 1945 Santa Catalina Is., Calif. Acrochaetium Bornetii Papenfuss Papenfuss, 1945 San Pedro, Calif. Acrochaetium coccineum (Drew) Papenfuss Papenfuss, 1945 Marin Co.; San Francisco, Calif. Acrochaetium Daviesii (Dillwyn) Nageli Papenfuss, 1945 ; Taylor, 1945 Carmel, Calif, to Is. Clarion, Revilla Gigedo Arch. Acrochaetium densum (Drew) Papenfuss Papenfuss, 1945 San Francisco, Calif. Acrochaetium Desmarestiae Kylin Papenfuss, 1945 San Juan Co., Wash. Acrochaetium Dictyotae Collins Papenfuss, 1945 San Diego Co., Calif, 52 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Acrochaetium Eastwoodae (Setchell & Gardner) Papen fuss Papenfuss, 1945 Is. Clarion, Revilla Gigedo Arch. Acrochaetium elegans (Drew) Papenfuss Papenfuss, 1945 La Jolla, Calif. Acrochaetium Erythrophyllum Tao Jao, 1937 Port Angeles, Wash. Acrochaetium Gymnogongri (Drew) Papenfuss Papenfuss, 1945 San Francisco, Calif. Acrochaetium Hancockii (Dawson) Papenfuss Papenfuss, 1945 Is. Angel de la Guarda, Gulf of Calif. Acrochaetium Macounii (Collins) Hamel Papenfuss, 1945 Vancouver Is., B. C. to Carmel Bay, Calif. Acrochaetium m agniftcum (Drew) Papenfuss Papenfuss, 1945 La Jolla, Calif. Acrochaetium obscurum (Drew) Papenfuss Papenfuss, 1945 Marin Co. to Carmel, Calif. Acrochaetium pacificum Kylin Papenfuss, 1945 San Jiian Co., Wash. Acrochaetium penetrate (Drew) Papenfuss Papenfuss, 1945; Taylor, 1945 La Jolla, Calif.; Port Parker, Costa Rica Acrochaetium plumosum (Drew) G. M. Smith Papenfuss, 1945; Dawson, 1945E Tomales Bay to Carmel, Calif.; Punta Descanso Baia Calif. •' Acrochaetium rhizoideum (Drew) G. M. Smith Papenfuss, 1945 Washington to southern Calif. Acrochaetium rhizoideum var. patens (Drew) G. M Smith Smith, 1944 Carmel, Calif. 53 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Acrochaetium simplex (Drew) Papenfuss Papenfuss, 1945 Santa Monica, Calif. Acrochaetium sinicolum (Dawson) Papenfuss Papenfuss, 1945 Turner’s Is., Gulf of Calif. Acrochaetium subimmersum (Setchell & Gardner) Papen- fuss Papenfuss, 1945 r- Puget Sound, Wash, to Carmel, Caht. Acrochaetium tenuissimum (Collins) Papenfuss Papenfuss, 1945 San Pedro, Calif. Acrochaetium Thuretii var. agama (Rosenvinge) Dawson Dawson, 1945D San Pedro, Calif. Acrochaetium vagum (Drew) Jao Jao, 1937; Papenfuss, 1945 Cape Flattery; San Juan Is., Wash.; Mateo Co., Calif. Moss Beach, San • Acrochaetium variabile (Drew) G. M. Smith Papenfuss, 1945 San Juan Is., Wash, to San Pedro, Calif. Chromastrum ARCUATUM (Drew) Papenfuss Papenfuss, 1945; Rhodochorton arcuatum in Dawson, 1944 Cape Flattery, Wash, to Moss Beach, Calif. ; Turner’s Is., Gulf of Calif. San iMateo Co., Chromastrum hirsutum (Drew) Papenfuss Papenfuss, 1945 Vancouver, B. C. ' Chromastrum implicatum (Drew) Papenfuss Papenfuss, 1945 Moss Beach, San Mateo Co., Calif. Chromastrum microscopicum (Nageli) Papenfuss Papenfuss, 1945 ; Rhodochorton microscopicum m uaw son, 1944 r r- 1-r La Jolla, Calif. ; Turner’s Is., Gulf of Calif. Chromastrum moniliforme (Rosenvinge) Papenfuss Papenfuss, 1945 Vancouver Is., B. C. 54 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Chromastrum Porphyrae (Drew) Papenfuss Papenfuss, 1945 San Francisco; Monterey, Calif, Rhodochorton concrescens Drew Papenfuss, 1945 Carmel Bay, Calif. Rhodochorton penicilliforme (Kjellman) Rosenvinge Papenfuss, 1945 Spruce Is., Alaska to San Juan Co., Wash. Rhodochorton purpureum (Lightfoot) Rosenvinge Papenfuss, 1945 Bering Sea to San Diego, Calif. Rhodochorton tenue Kylin Papenfuss, 1945 San Juan Is., Wash. ; Santa Cruz, Calif. Audouinella membranaceum (Magnus) Papenfuss Papenfuss, 1945 San Juan Co., Wash. CoNCHOCELis ROSEA Batters Jao, 1937 Puget Sound, Wash. Fam. Helminthocladiaceae Nemalion elminthoides (Velley) Batters Dawson, 1945B; Nemalion lubricum in Smith, 1944 Sitka, Alaska to San Diego, Calif. Nemalion virens J. Agardh Agardh, 1852 Pacific coast of Mexico, probably Oaxaca B?' Helminthora Saundersii Gardner Smith, 1944 Monterey, Calif. Helminthora stricta Gardner Gardner, 1926 La Jolla, Calif. Helminthocladia californica (J. Agardh) Kvliu Kylin, 1941 Santa Barbara to San Diego, Calif. Helminthocladia gracilis Gardner Gardner, 1926 Santa Barbara, Calif. 5.5 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences CuMAGLOiA Andersonii (Farlow) Setchell & Gardner Smith, 1944; Dawson, 1945E _ Vancouver Is., B. C. to San Diego, Calif. ; Cabo Colnett, Baja CaliF Liagora californica Zeh Zeh, 1912; Dawson, 1945D Santa Catalina Is., Calif, to Is. Guadalupe, Baja Calif. Liagora ceranoides Lamouroux Taylor, 1945 Golfo Duke, Costa Rica Liagora valida Harvey Taylor, 1945 Golfo Duke, Costa Rica Fam. Chaetangiaceae Gloiophloea confusa Setchell Smith, 1944 Vancouver Is., B. C. to San Diego, Calif. SciNAiA ARTicuLATA Setchell Setchell, 1914A Santa Barbara, Calif. SciNAIA COMPLANATA (Collins) Cotton Taylor, 1945 Is. Maria Magdalena, Nayarit; Puerto Culebra, Costa Rica SciNAiA JoHNSTONiAE Setchell Dawson, 1944; Taylor, 1945 Southern Calif, to Puerto Culebra, Costa Rica ; Gulf of Calif. SCINAIA LATIFRONS HoWC Dawson, 1944; Taylor, 1945 Southern Calif, to Is. Maria Magdalena, Nayarit; Gulf of Calif. SciNAiA MINIMA Dawson Dawson, 1945A Is. Cedros, Baja Calif. PsEUDOsciNAiA Snyderae Setchell Setchell, 1914A; Dawson, 1945B San Pedro to San Diego, Calif. Wiiidbeyella cartii.aginea Setchell & Gardner Kylin, 1925 Whidbey Is., Wash. 56 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Galaxaura fastigiata Decaisne Dawson, 1944 Punta Penasco, Sonora; Is. Tiburon. Gulf of Calif. Galaxaura filamentosa Chou Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. ; Puerto Culebra, Costa Rica Galaxaura marginata (Solander) Kjellman Dav.'son, 1944 San Jose del Cabo, Baja Calif. Galaxaura oblongata (Ellis & Solander) Lamouroux Taylor, 1945 Is. Maria Madre, Nayarit Galaxaura ramulosa Kjellman Taylor, 1945 Is. Jacarita, Panama Galaxaura squalida Kjellman Taylor, 1945 Bahia Honda, Panama Galaxaura stupocaulon Kjellman Taylor, 1945 Golfo Dulce, Costa Rica Galaxaura subfruticulosa Chou Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Galaxaura ventricosa Kjellman Taylor, 1945 Is. Maria Magdalena, Nayarit Galaxaura veprecula Kjellman Taylor, 1945 Golfo Dulce, Costa Rica Fam. Bonnemaisoniaceae Bonnemaisonia californica Buffham Smith, 1944 Vancouver Is., B. C. to Ventura, Calif, Bonnemaisonia geniculata Gardner Smith, 1944 Carmel Bay to Point Sur, Calif, 57 Memoiks, So. Calif. Acaoemv of Sciences Vol. 3, Part 1, 1946 Bonnemaisonia hamifera Hariot _ Feldman, 1942; Asparagopsis hamifera in Kylin, lyz:) 1941 ; Dawson, 1945E Victoria, B. C. to Punta Descanso, Baja Calif. Asparagopsis Sanfordiana Harvey Setchell & Gardner, 1930; Dawson, 1944; Taylor, 1945; see Asparagopsis taxiformis in Feldmann, 1942 ^ Is. Angel de la Guarda, Gulf of Calif, to Is. Clarion, Revilla Gigedo Arch. Asparagopsis Sanfordiana f. amplissima Setchell & Gard- ner Setchell & Gardner, 1924; Taylor, 1945 La Paz, Baja Calif. ; Revilla Gigedo Arch. Order GELIDIALES Fam. Gelidiaceae Gelidium arborescens Gardner Smith, 1944 Monterey to Cambria, Calif. Gelidium caloglossoides Howe Smith, 1944 Monterey to southern Calif. Gelidium cartilagineum (Linnaeus) Greville Kylin, 1925; Dawson, 1945E San Juan Is., Wash, and southward Gelidium cartilagineum var. robustum Gardner Smith, 1944; Taylor, 1945 , „ • San Francisco, Calif, to Puerto San Bartholome, Baja Calif. Gelidium Coulteri Harvey Smith, 1944; Sanborn & Doty, 1946; Dawson, 1945E Coos Bay, Oregon to Punta Descanso, Baja Calif. Gelidium grin ale (Turner) Lamouroux Dawson, 1944; 1945B; Collins, 1913 Victoria, B. C. to La Jolla, Calif.; Bahia Gonzaga, Baja Calif, to Turner’s Is., Gulf of Calif. Gelidium crinale var. luxurians Collins Gardner, 1927E Southern Calif. Gelidium decompositum Setchell & Gardner Dawson, 1944 Bahia San Francisquito, Baja Calif. 58 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Gelidium densum Gardner Gardner, 1927E; Taylor, 1945 San Pedro, Calif. ; Is. Cedros, Baja Calif. Gelidium Johnstonii Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- nora Gelidium microphysa Setchell & Gardner Setchell & Gardner, 1930; Dawson, 1944 Is. Guadalupe, Baja Calif. ; Turner’s Is., Gulf of Calif. Gelidium nudifrons Gardner Gardner, 1927E Southern Calif. Gelidium polystichum Gardner Gardner, 1927E White’s Point, San Pedro, Calif. Gelidium pulchrum Gardner Kylin, 1941 ; Sanborn & Doty, il946; Dawson, 1945E Coos Bay, Oregon; Orange County, Calif, to Cabo Col- nett, Baja Calif. Gelidium purpurascens Gardner Smith, 1944 Bolinas to San Diego, Calif. Gelidium pusillum (Stackhouse) Le Jobs Smith, 1944; Dawson, 1944; Taylor, 1945 Monterey, Calif, to Panama Gelidium ramuliferum Gardner Gardner, 1927E San Pedro, Calif. Gelidium sclerophyllum Taylor Taylor, 1945 Golfo Dulce, Costa Rica Gelidium Setchellii Gardner Gardner, 1927E Marin Co., Calif. Gelidium sinicola Gardner Smith, 1944 San Francisco Bay; Monterey, Calif. Pterocladia mexicana Taylor Taylor, 1945 Cabo San Lazaro, Baja Calif. 59 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Pterocladia musciformis Taylor Taylor, 1945 Golfo Duke, Costa Rica Pterocladia Okamurai (Setchell & Gardner) Taylor Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Pterocladia pyramidale (Gardner) Dawson Dawson, 1945D ; 1945E Southern Calif. ; Punta Descanso, Baja Calif. Gelidiocolax microsphaerica Gardner Gardner, 1927A Balboa, Calif. Gelidiella acerosa (Forsskal) Feldmann & Hamel Dawson, 1944 Southern Gulf of Calif, to Central America Gelidiella Hancockii Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. ; Kino, Sonora Gelidiella mexicana Dawson Dawson, 1944 Bahia Gonzaga, Baja Calif, to Guaymas, Sonora Gelidiella ? refugiensis Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. WuRDEMANNiA MiNiATA (Drapamaud) Feldmann & Hamel Dawson, 1944; Taylor, 1945 Is. Carmen, Gulf of Calif, to Panama City, Panama Gelidiopsis tenuis Setchell & Gardner Dawson, 1944 Guaymas. Sonora to San Jose del Cabo, Baja Calif.; Is. Clarion, Revilla Gigedo Arch. Gelidiopsis variabilis (Greville) Schmitz Dawson, 1944 Guaymas, Sonora Order CRYPTONEMIALES Fam. Dumontiaceae Cryptosiphonia Woodii J. Agardh Smith, 1944 Unalaska, Alaska to Venice, Calif. 60 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Thuretellopsis Pfeggiana Kylin Kylin, 1925 Friday Harbor, Wash, Dumontia filiformis (Lyngbye) J, Agardh Setchell & Gardner, 1903 Alaska Baylesia plumosa Setchell Smith, 1944 Santa Cruz ; Monterey, Calif. Sarcophyllis arctica Kjellman Setchell & Gardner, 1903 Alaska PiKEA californica Harvcy Smith, 1944 Vancouver Is., B. C. to La Jolla, Calif. r PiKEA PINNATA Sctchell Smith, 1944; Dawson, 1945D Bolinas to Coronado, Calif, Farlowia compressa J. Agardh Smith, 1944 Tomales Bay to Carmel Bay, Calif. Farlowia crassa J. Agardh Smith, 1944 Port Orford, Oregon to San Diego, Calif. Farlowia mollis (Harvey & Bailey) Farlow & Setchell Smith, 1944 Vancouver, B. C. to Carmel, Calif. Dilsea californica (J. Agardh) Schmitz Kylin, 1941 ; Sanborn & Doty, 1946 Coos Bay, Oregon to San Francisco, Calif. Leptocladia Binghamiae j. Agardh Setchell, 1912; Kylin, 1941; Dawson, 1945E Santa Cruz, Calif, to Cabo Colnett, Baja Calif. Leptocladia conferta Setchell Smith, 1944 Crescent City to Carmel Bay, Calif. Leptocladia laxa Taylor Taylor, 1945 Cabo San Lazaro, Baja Calif, Weeksia Fryeana Setchell Kylin, 1925 San Juan Co., Wash. 61 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Weeksia Howellii Setchell & Gardner Setchell & Gardner, 1937 Is. Natividad, Baja Calif. Weeksia reticulata Setchell Smith, 1944; Dawson, 1945E _ Monterey Peninsula, Calif. ; Cabo Colnett, Baja Calif. Weeksia Templetonii Setchell & Gardner Setchell & Gardner, 1937 Is. Cedros, Baja Calif. CoNSTANTiNEA ROSA MARINA (Gmelin) Postels & Ruprecht Setchell & Gardner, 1903 ; Setchell, 1906 Western Aleutian Is, to Sitka, Alaska CoNSTANTiNEA SIMPLEX Setchell Smith, 1944 Neah Bay, Wash, to Carmel, Calif. CoNSTANTiNEA SUBULIFERA Setchell Setchell, 1906; Kylin, 1925 Esquimau, B. C. to San Juan Is., Wash. Fam. Gloiosiphoniaceae Gloiopeltis furcata (Postels & Ruprecht) J. Agardh Setchell & Gardner, 1903 ; Kylin, 1925 Aleutian Islands, Alaska to Puget Sound, Wash. Gloiopeltis miniata Kylin Kylin, 1941 Santa Catalina Is., Calif. Gloiosiphonia californica (Farlow) J. Agardh Smith, 1944 Sitka, Alaska to Carmel Bay, Calif. Gloiosiphonia capillaris (Hudson) Carmichael Collins, 1913 Vancouver Is., B. C. Gloiosiphonia verticillaris Farlow Smith, 1944 Sitka, Alaska to Carmel Bay, Calif. Fam.Endocladiaceae Endocladia muricata (Postels & Ruprecht) J. Agardh Smith, 1944 Shumagin Is., Alaska to La Jolla, Calif. 62 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fam. Squamariaceae Peyssonnelia calcea Heydrich Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. Peyssonnelia clarionensis Taylor Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Peyssonnelia pacifica Kylin Smith, 1944; Dawson, 1945A San Juan Is., Wash, to Is. Cedros, Baja Calif. Peyssonnelia rubra (Greville) J, Agardh Setchell & Gardner, 1930; Taylor, 1945 Is. Guadalupe, Baja Calif. ?; Is. Clarion; Is. Socorro, Revilla Gigedo Arch. Rhododermis elegans Crouan Smith, 1944 Marin Co. to Monterey, Calif. Asymmetria expansa Setchell & Gardner Smith, 1944 Monterey, Calif. Hildenbrandia occidentalis Setchell Smith, 1944 Puget Sound, Wash, to Carmel Bay, Calif. Hildenbrandia prototypus Nardo Smith, 1944; Taylor, 1945 Alaska to Panama Hildenbrandia rosea Kiitzing Kylin, 1925 ; Dawson, 1944 San Juan Co., Wash.; Turner’s Is., Gulf of Calif. Cruoriella Dubyi Crouan Taylor, 1945 Is. Isabel, Nayarit; Is. Socorro; Is. Clarion, Revilla Gigedo Arch. Fam. Cruoriaceae Petrocelis franciscana Setchell & Gardner Smith, 1944 Puget Sound, Wash, to San Luis Obispo Co., Calif. 63 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences Petrocelis haematis Hollenberg Hollenberg, 1943 Southern Calif. Petrocelis Middendorffii (Ruprecht) Kjellman Kylin, 1925 Bering Sea to Whidbey Is., Wash. Fam. Corallinaceae Choreonema Thureti (Bornet) Schmitz Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Melobesia marginata Setchell Sl Foslie Smith, 1944; Taylor, 1945 Whidbey Is., Wash, to Is. Cedros, Baja Calif. Melobesia mediocris (Foslie) Setchell & IMason Smith, 1944; Taylor, 1945 Fort Bragg, Calif, to Cabo San Lazaro, Baja Calif. Archeolithothamnium Howei Lemoine Lemoine, 1929 Is. Coiba, Panama Lithothamnium aculeiferum Mason Setchell & Mason, 1943 Pacific Grove to La Jolla, Calif. Lithothamnium australe f. Americana Foslie Dawson, 1944; Taylor, 1945 Is. Angel de la Guarda, Gulf of Calif, to Bahia Honda, Panama Lithothamnium australe f. minutula Foslie Mesophylluni australe var. minutula in Lemoine, 1929 Is. Coiba, Panama Lithothamnium australe f. tualensis Foslie Dawson, 1944; Taylor, 1945; Mesophylluni australe var. tualensis in Lemoine, 1929 Is. Angel de la Guarda, Gulf of Calif, to Bahia Honda, Panama Lithothamnium californicum Foslie Smith, 1944 San Juan Is., Wash, to San Diego, Calif. Lithothamnium conchatum Setchell & hoslie Smith, 1944 San Juan Is., Wash, to Carmel, Calif. 64 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Lithothamnium crassiusculum (Foslie) Mason Setchell & Mason, 1943 San Pedro to La Jolla, Calif. Lithothamnium giganteum Mason Setchell & Mason, 1943 La Jolla, Calif. Lithothamnium indicum Foslie Taylor, 1945 Is. Socorro Is. Clarion, Revilla Gigedo Arch. ; Is. Secas, Panama Lithothamnium lamellatum Setchell & Foslie Smith, 1944 Monterey, Calif. Lithothamnium montereyicum Foslie Smith, 1944 Monterey, Calif. Lithothamnium muricatum (Foslie) G. DeToni G. DeToni, 1924; Lithophyllum muricatum in Foslie. 1929 Vancouver Is., B. C. Lithothamnium pacificum Foslie Smith, 1944 Whidbey Is., Wash, to Carmel, Calif. Lithothamnium parcum Setchell & Foslie Smith, 1944 San Juan Is., Wash, to Carmel, Calif. Lithothamnium phymatodeum Foslie Foslie, 1929 Puget Sound, Wash, to Bolinas, Calif. Lithothamnium reclinatum Foslie Foslie, 1929; Collins, 1913 Vancouver Is., B. C. to Tomales Bay, Calif. Lithothamnium validum Foslie Taylor, 1945 Bahia Petatlan, Guerrero; Puerto Culebra, Costa Rica Clathromorphum compactum f. circumscriptum Strom- felt) Foslie Foslie, 1929 Unalaska, Alaska Hydrolithon Setchellii (Foslie) Setchell & Mason Setchell & Mason, 1943 Redondo to La Jolla, Calif. 65 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences Fosliella ascripticia (Foslie) G. M. Smith Smith, 1944 Monterey to La Jolla, Calif. Fosliella dispar (Foslie) G. M. Smith Smith, 1944 Whidbey Is., Wash.; Bolinas; Monterey, Calif. Fosliella intermedia (Foslie) G. M. Smith Smith, 1944 Pacific Grove to La Jolla, Calif. Fosliella minuta Taylor Taylor, 1945 Bahia Honda, Panama Fosliella Nicholsii (Setchell & Mason) G. M. Smith Smith, 1944 Monterey to San Diego, Calif. Fosliella paschalis (Lemoine) Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Litholepis accola Foslie Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif.; Is. Clarion, Revilla Gigedo Arch. Litholepis fertilis (Lemoine) Setchell & Mason Setchell & Mason, 1943 Is. Coiba, Panama Litholepis sonorensis Dawson Dawson, 1944 Is. Espiritu Santo, Gulf of Calif. Lithoporella PACIFICA (Heydrich) Foslie Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Heteroderma corallinicola Dawson Dawson, 1944 Guaymas, Sonora Heteroderma Gibbsii (Foslie & Setchell) hoslie Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to San Jose del Cabo, Baja Calif. Dermatolithon saxicolum (Lemoine) Setchell & Mason Setchell & Mason, 1943 Is. Cocos, Costa Rica 66 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Dermatolithon veleroae Dawson Dawson, 1944 Bahia Agiia Verde, Baja Calif. PoROLiTHON cocosicuM Lemoine Lemoine, 1929 Is. Cocos, Costa Rica POROLITHON SONORENSIS DawSOn Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, Sonora Lithophyllum bracchiatum (Heydrich) Lemoine Taylor, 1945 ; Lemoine, 1929 Is. Maria Magdalena, Nayarit; Is. Socorro; Is. Clarion, Revilla Gigedo Arch. ; Is. Secas ; Is. Coiba, Panama Lithophyllum ( ?) coibense Lemoine Lemoine, 1929 Is. Coiba, Panama Lithophyllum decipiens Foslie Dawson, 1944; Foslie, 1929 Bodega Bay to San Diego, Calif. ; Is. Angel de la Guarda, Gulf of Calif, to Guaymas, Sonora Lithophyllum Digueti (Hariot) Heydrich Dawson, 1944 Is. Angel de la Guarda; Is. Espiritu Santo, Gulf of Calif. Lithophyllum divaricatum Lemoine Taylor, 1945 Is. Socorro, Reyilla Gigedo Arch. ; Bahia Petatlan, Guer- rero; Is. Jicarita, Panama Lithophyllum ( ?) fetum Foslie Lemoine, 1929 Is. Cocos, Costa Rica Lithophyllum grumosum Foslie Smith, 1944 Pacific Grove to San Diego, Calif. Lithophyllum Hancocicii Dawson Dawson, 1944 Is. Espiritu Santo, Gulf of Calif. Lithophyllum imitans Foslie Foslie, 1929 Southern Calif. Lithophyllum lithophylloides Heydrich Dawson, 1944 Is. Angel de la Guarda to Is. Espiritu Santo, Gulf of Calif. 67 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Lithophyllum ( ?) LIVIDUM Lcmoine Lemoine, 1929 Is. Cocos, Costa Rica Lithophyllum Margaritae (Hariot) Heydrich Dawson, 1944; Lithophyllum elegans in Setchell & Ma- son, 1943 La Paz, Baja Calif. Lithophyllum neofarlowii Setchell & Mason Smith, 1944 Fort Bragg to Carmel Bay, Calif. Lithophyllum pallescens (Foslie) Heydrich Dawson, 1944 Is. Espiritu Santo, Gulf of Calif. Lithophyllum proboscidium Foslie Smith, 1944 Monterey ; San Pedro, Calif. Lithophyllum (?) propinquum var. cocosica Lemoine Lemoine, 1929 Is. Cocos, Costa Rica Lithophyllum trichotomum (Heydrich) Lemoine Dawson, 1944; Taylor, 1945; Neogoniolithon trichoto- mum in Setchell & Mason, 1943A Is. Angel de la Guarda, Gulf of Calif, to Is. Clarion, Revilla Gigedo Arch. Lithophyllum veleroae Dawson Dawson, 1944 Is. Espiritu Santo, Gulf of Calif. Lithophyllum whidbeyense Foslie Setchell & Mason, 1943 Vancouver Is., B. C. ; Puget Sound, Wash. CoRALLiNA CHiLENSis Decaisne Smith, 1944; Taylor, 1945; Dawson, 1945E Vancouver Is., B. C. to Cabo San Lazaro, Baja Calif. CoRALLiNA cuBENSis (IMontagiic) Kiitzing Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. CoRALLiNA GRACILIS Lamouroux Dawson, 1945B ; Taylor, 1945 Southern Calif, to Is. Cedros, Baja Calif. CORALLINA GRACILIS Var. DENSA CollinS Smith, 1944; Dawson, 1945B; 1945E^ Marin Co., Calif, to Cabo Colnett, Baja Calif. 68 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 CoRALLiNA GRACILIS var. LYCOPODioiDES Taylor Taylor, 1945 Is. Cedros, Baja Calif. CORALLINA PILULIFERA Postcls & Ruprccht Dawson, 1944; Corallina officinalis f. pilulifera in Setch- ell & Gardner, 1903 Alaska; Gulf of Calif. ? Corallina subulata Solander Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. ? Corallina vancouveriensis Yendo Yendo, 1902; Taylor, 1945 Port Renfew, Vancouver Is., B. C. ; Cabo San Lazaro, Baja Calif. Pachyarthron cretaceum (Postels & Ruprecht) Manza Manza, 1940 Unalaska, Alaska Lithothrix Aspergillum J. E. Gray Smith 1944; Taylor, 1945; Dawson, 1945E Vancouver Is., B. C. to Is. Cedros, Baja Calif. JocuLATOR PiNNATiFOLius Manza Manza, 1940 Orange and San Diego Counties, Calif. Bossea angustata Taylor Taylor, 1945 Is. San Benito, Baja Calif. Bossea californica (Decaisne) Manza Smith, 1944 Monterey, Calif. Bossea corymbifera Manza Smith, 1944 Point Lobos, Carmel Bay, Calif. Bossea dichotoma Manza Smith, 1944 Moss Beach, San Mateo Co. ; Monterey Peninsula. Calif. Bossea frondifera Manza Manza. 1940; Dawson, 1945E Moss Beach, San Mateo Co., Calif.; Punta Descanso, Baja Calif. Bossea Gardneri Manza Smith, 1944; Taylor, 1945 Duxbury Reef, Marin Co., Calif, to Is. Cedros Baja Calif. 69 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Bossea interrupta Manza Smith, 1944 Pacific Grove, Calif. Bossea Orbigniana (Decaisne) Manza Smith, 1944; Dawson, 1945E Cape Arago, Oregon; Monterey, Calif, to Cabo Colnett, Baja Calif. Bossea pachyclada Taylor Taylor, 1945 Is. Cedros, Baja Calif. Bossea plumosa Manza Smith, 1944 . . ^ Moss Beach, San Mateo Co. ; Monterey Peninsula, Calif. Jania adhaerens Lamouroux Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Jania capillacea Harvey Taylor, 1939; 1945 Is. Socorro, Revilla Gigedo Arch.; Clipperton Is. Jania mexicana Taylor Taylor, 1945 Bahia Tangola-Tangola, Oaxaca; Bahia Petatlan, Guer- rero Jania rubens Lamouroux Setchell & Gardner, 1930; Dawson, 1944 Is. Guadalupe, Baja Calif.; Pond Is., Gulf of Calif, to Guaymas, Sonora Amphiroa annulata Lemoine Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. ; Golfo Dulce, Costa Rica Amphiroa compressa var. tenuis Taylor Taylor, 1945 Is. Maria Magdalena, Nayarit Amphiroa Crosslandii Lemoine Taylor, 1945 ; Lemoine, 1929 Is. Socorro, Revilla Gigedo Arch. ; Tangola-Tangola, Oaxaca; Is. Gorgona, Gulf of Panama Amphiroa dimorpha Lemoine Taylor, 1945 Is. Isabel, Nayarit 70 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Amphiroa foliacea Lamouroux Taylor, 1945 Is. Maria Magdalena, Nayarit Amphiroa fragilissima (Linnaeus) Lamouroux Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Amphiroa franciscana Taylor Taylor, 1945 Is. Maria Magdalena, Nayarit Amphiroa mexicana Ta5dor Taylor, 1945 Morro de Petatlan, Guerrero Amphiroa minutissima Taylor Taylor, 1945 Golfo Dulce, Costa Rica Amphiroa peninsularis Taylor Taylor, 1945 San Diego, Calif.; Is. Cedros, Baja Calif.; Is. Maria Magdalena, Nayarit; Bahia Petatlan, Guerrero Amphiroa polymorpha Lemoine Taylor, 1945 Golfo Dulce, Costa Rica Amphiroa pusilla Yendo Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, Sonora Amphiroa rigida Lamouroux Dawson, 1944 Bahia Tepoca to Guaymas, Sonora Amphiroa zonata Yendo Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, Sonora Calliarthron cheilosporioides Manza Smith, 1944 Bolinas to San Pedro, Calif. Calliarthron pinnulatum Manza Manza, 1940 Puget Sound, Wash.; ?; Moss Beach, San Mateo Co., Calif. Calliarthron regenerans Manza Manza, 1940 Moss Beach, San Mateo Co., Calif. 71 Memoiks, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Calliarthron Setchelliae Manza Smith, 1944 Moss Beach, San Mateo Co. ; Monterey, Calif. Calliarthron Schmittii Manza Manza, 1940 San Diego, Calif. Fam. Dermocorynidaceae Dermocorynus occidentalis Hollenberg Hollenberg, 1940 Los Angeles Co., Calif, to Punta Banda, Baja Calif. Fam. Grateloupiaceae Grateloupia abreviata Kylin Kylin, 1941 La Jolla, Calif. Grateloupia acroidalea Setchell & Gardner Dawson, 1944 Guaymas, Sonora Grateloupia californica Kylin Smith, 1944; Dawson, 1945E Puget Sound, Wash, to Cabo Colnett, Baja Calif. Grateloupia cerrosiana Taylor Taylor, 1945 Is. Cedros, Baja Calif. Grateloupia filicina (Wulfen) C. Agardh Taylor, 1945 ; Dawson, 1945E Punta Descanso ; Cabo Colnett, Baja Calif.; Bahia Pe- tatlan, Guerrero Grateloupia ( ?) Hancockii Dawson Dawson, 1944 Kino, Sonora Grateloupia Howeii Setchell & Gardner Dawson, 1944 Is. San Esteban, Gulf of Calif. Grateloupia Johnstonii Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. 72 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Grateloupia maxima (Gardner) Kylin Kyi in, 1941 San Francisco; La Jolla, Calif. Grateloupia pinnata (Postels & Ruprecht) Setchell Kylin, 1925 Sitka, Alaska to Tracyton, Wash. Grateloupia prolongata J. Agardh Dawson, 1944; 1945C; 1945E La Jolla, Calif, to central Mexico Grateloupia Setchellii Kylin Smith, 1944 Monterey, Calif. Grateloupia squarrulosa Setchell & Gardner Dawson, 1944 Smith Is., Gulf of Calif. Cryptonemia borealis Kylin Kylin, 1925 San Juan Co., Wash. Cryptonemia decolorata Taylor Taylor, 1945 Is. Maria Magdalena, Nayarit Cryptonemia obovata J. Agardh Kylin, 1941 ; Dawson, 1945B San Francisco; La Jolla, Calif. Cryptonemia ovalifolia Kylin Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Oregon ; Pacific Grove, Calif. Aeodes Gardneri Kylin Smith, 1944 Puget Sound, Wash, to San Pedro, Calif. Estebania conjuncta Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- nora PoLYOPES Bushiae Farlow Kylin, 1941 ; Taylor, 1945 San Pedro, Calif, to Is. Cedros, Baja Calif. PoLYOPES CLARiONENSis Setchell & Gardner Setchell & Gardner, 1937A Is. Clarion, Revilla Gigedo Arch. 73 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences PoLYOPES siNicoLA Setchell & Gardner Dawson, 1944 Northern Gulf of Calif. Halymenia (?) ABYSSicoLA Dawson Dawson, 1944 Is. Partida, Gulf of Calif. Halymenia actinophysa Howe Dawson, 1944; Taylor, 1945 Punta Pehasco, Sonora; Is. Tiburon, Gulf of Calif.; Is. Clarion ; Is. Socorro, Revilla Gigedo Arch. Halymenia Agardhii DeToni Taylor, 1945 Is. Maria Magdalena, Nayarit Halymenia californica Smith & Hollenberg Smith, 1944 Monterey Peninsula, Calif. Halymenia ( ?) refugiensis Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Zanardinula abbreviata (Setchell & Gardner) J. DeToni J. DeToni, 1936 ; Prionitis abbreviata in Dawson, 1944 Is. San Esteban, Gulf of Calif, to Guaymas, Sonora Zanardinula Andersoniana (Eaton) Papenfuss Papenfuss, 1943 ; Dawson, 1945B ; 1945E ; Prionitis And- ersoniona in Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Oregon to Cabo Colnett, Baja Calif. Zanardinula australis (J. Agardh) Papenfuss Papenfuss, 1943 ; Prionitis australis in Smith. 1944 Monterey, Calif. Zanardinula filiformis (Kylin) Papenfuss Papenfuss, 1943; Prionitis filiformis in Smith, 1944; Taylor, 1945 Cape Arago, Oregon to Is. Cedros, Baja Calif. Zanardinula filiformis var. delicatula (Taylor) Dawson Dawson, 1945D; Prionitis filiformis var. delicatula in Taylor, 1945 Is. Cedros, Baja Calif. Zanardinula guaymasensis (Dawson) Dawson Dawson, 1945D ; Prionitis guaymasensis in Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- nora 74 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Zanardinula kinoensis (Dawson) Dawson Dawson, 1945D; Prionitis kinoensis in Dawson, 1944 Kino, Sonora Zanardinula lanceolata (Harvey) J. DeToni J. DeToni, 1936; Prionitis lanceolata in Smith, 1944 Vancouver Is., B. C. to San Pedro, Calif. Zanardinula linearis (Kylin) Papenfuss Papenfuss, 1943; Dawson, 1945E: Prionitis linearis in Smith, 1944 San Mateo Co., Calif, to Punta Descanso, Baja Calif. Zanardinula Lyallii (Harvey) J. DeToni J- Prionitis Lyallii in Smith, 1944; Taylor, Vancouver Is., B. C. to Carmel Bay, Calif.; Bahia Mag- dalena, Baja Calif. ? Zanardinula mexicana (Dawson) Dawson Dawson, 1945D; Prionitis mexicana in Dawson. 1944 Bahia Santa Maria; San Jose del Cabo; Baja Calif. Zanardinula Sternbergii (C. Agardh) J. DeToni J. DeToni, 1936; Prionitis Sternhcrgii in Dawson. 1944 Georges Is., Gulf of Calif, to central ATexico Lobocolax deformans Howe Smith, 1944; Taylor, 1945; Dawson, 1945E Monterey, Calif.; Punta Descanso; Is. Cedros, Baja Calif. •’ Fam. Kallymeniaceae Kallymenia angustata Setchell & Gardner Dawson, 1944; 1945C; Setchell & Gardner, 1937 Mission Beach, Calif. ; Bahia Santa Maria, Baja Calif. ; Bahia Tepoca, Sonora Kallymenia guaymasensis Dawson Dawson, 1944 Guaymas, Sonora Kallymenia oblongifructa Setchell Kylin, 1925; Setchell, 1912 Sitka; Seldovia, Alaska to Puget Sound, Wash. Kallymenia ornata (Postels & Ruprecht) f. Agardh Setchell & Gardner, 1903; Collins, 1913 Yakutat Bay, Alaska to Vancouver Is., B. C. 76 Vol. 3, Part 1, 1946 Memoirs, So. Calif. Academy of Sciences Kallymenia pertusa Setchell & Gardner Dawson, 1944 Is. San Pedro Martir, Gulf of Calif. Kallymenia reniformis (Turner) J. Agardh Setchell & Gardner, 1903; Collins, 1913 Esquimault, B. C. Kallymenia reniformis f. cuneata J. Agardh Setchell & Gardner, 1903 Unalaska; Morzhovoi Bay, Alaska Kallymenia tenuifolia Taylor Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. Kallymenia veleroae Dawson Dawson, 1944 Guaymas, Sonora Meredithia californica j. Agardh Kylin, 1941 ; J. Agardh, 1899 California (locality unknown) Pugetia firma Kylin Smith, 1944 Monterey Peninsula, Calif. Pugetia fragilissima Kylin Kylin, 1925 ; Sanborn & Doty, 1946 Friday Harbor, Wash.; Coos Bay, Oregon Callophyllis acrocarpa Setchell Setchell, 1923A Santa Cruz to Santa Barbara, Calif. Callophyllis crassifolia Setchell & Swezy Smith, 1944 San Mateo Co. to Carmel, Calif. Callophyllis crenulata Setchell Smith, 1944 Whidbey Is., Wash. ; Pacific Grove, Calif. Callophyllis dissecta Setchell & Swezy Kylin, 1941 La Jolla, Calif. Callophyllis edentata Kylin Kylin, 1925 Friday Harbor, Wash. 76 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Callophyllis filicina Setchell & Swezy Setchell, 1923A Venice to La Jolla, Calif. Callophyllis flabellulata Harvey Kylin, 1925 ; Sanborn & Doty, 1946 Esquimault, B. C. to Coos Bay, Oregon Callophyllis Gardneri Setchell Setchell, 1923A Venice to Redondo, Calif. Callophyllis heanophylla Setchell Kylin, 1925 ; Sanborn & Doty, 1946 Friday Harbor, Wash, to Coos Bay, Oregon Callophyllis Johnstonii Setchell & Gardner Dawson, 1944 Is. Tortuga, Gulf of Calif. Callophyllis marginifructa Setchell & Swezy Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Oregon to San Diego, Calif. Callophyllis megalocarpa Setchell & Swezy Smith, 1944; Dawson, 1945E Whidbey Is., Wash, to Santa Barbara, Calif.; Punta Descanso, Baja Calif. Callophyllis obtusifolia J. Agardh Smith, 1944 Santa Cruz to San Pedro, Calif. Callophyllis odonthalioides Setchell Setchell, 1923A Santa Cruz to San Diego, Calif. Callophyllis pinnata Setchell & Swezy Smith, 1944; Dawson, 1945E Marin Co. to Carmel, Calif. ; Punta Descanso ; Cabo Colnett, Baja Calif. Callophyllis plumosa Setchell & Swezy Setchell, 1923A San Pedro to La Jolla, Calif. Callophyllis stenophylla Setchell Setchell, 1923A Bolinas, Calif. Callophyllis Thompsonii Setchell Setchell, 1923 A San Juan Co., Wash. 77 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Callophyllis violacea J. Agardh Kylin, 1941 ; Taylor, 1945; Dawson, 1945E ^ Santa Barbara, Calif, to Cabo San Lazaro, Baja Calii Callocolax fungiformis Kylin Kylin, 1925 Friday Harbor, Wash. Callocolax globulosis Dawson Dawson, 1945D San Diego, Calif. Callocolax neglectus Schmitz Smith, 1944 Monterey, Calif. Fam. Choreocolaceae Choreocolax Polysiphoniae Reinsch Smith, 1944; Dawson, 1945E Sitka, Alaska; Monterey, Calif.; Cabo Colnett, Baja Calif. Order GIGARTINALES Fam. Nemastomaceae Predaea Masonii (Setchell & Gardner) J. DeToni J. DeToni, 1936; Clarionea Masonii in Setchell & Gard- ner, 1930 Is. Clarion, Revilla Gigedo Arch. ScHizYMENiA EPiPHYTiCA (Setchell & Lawson) Smith & Hollenberg Smith, 1944; Papenfuss, 1944A Monterey Peninsula, Calif. ScHizYMENiA JoHNSTONii Setchell & Gardner Dawson, 1944 Is. San Esteban, Gulf of Calif. SCHIZYMENIA PACIFICA Kylin Smith, 1944; Dawson, 1945E Unga Is., Alaska to Punta Descanso, Baja Calif. 78 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fam. Solieriaceae Turnerella Mertensiana (Postels & Ruprecht) Schmitz Setchell & Gardner, 1903; Collins, 1913 Shumagin Is., Alaska to Victoria, B, C. ? Eucheuma uncinatum Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Mazatlan, Sin- aloa Agardhiella Coulteri (Harvey & Bailey) Setchell Smith, 1944; Dawson, 1945E Vancouver Is., B. C. to Cabo Colnett, Baja Calif. Agardhiella mexicana Dawson Dawson, 1944; 1945E Bahia Gonzaga, Baja Calif.; Is. Angel de la Guarda, Gulf of Calif.; Cabo Colnett, Baja Calif. Agardhiella tenera (J. Agardh) Schmitz Dawson, 1944; Taylor, 1945 San Jose del Cabo, Baja Calif.; Is. Clarion, Revilla Gigedo Arch. Gardneriella tubifera Kylin Smith, 1944; Dawson, 1945E Monterey Peninsula, Calif. ; Punta Descanso ; Cabo Col- nett, Baja Calif. Opuntiella californica (Farlow) Kylin Smith, 1944 Unga Is., Alaska to San Diego, Calif. Sarcodiotheca cuneata Setchell & Gardner Setchell & Gardner, 1937A Is. San Martin, Baja Calif. Sarcodiotheca dichotoma (Howe) Dawson Dawson, 1944 Guaymas, Sonora to La Paz, Baja Calif. Sarcodiotheca ecuadoreana Taylor Taylor, 1945 Is. Maria Magdalena, Nayarit; Puerto Culebra, Costa Rica Sarcodiotheca elongata (Setchell & Gardner) Setchell Dawson, 1944 Is. Tiburon; Is. San Pedro Martir, Gulf of Calif. Sarcodiotheca furcata (Setchell & Gardner) Kylin Kylin, 1932 Friday Harbor, Wash. 79 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Sarcodiotheca linearis Setchell & Gardner Dawson, 1944 Cape district, Baja Calif. Sarcodiotheca meridionalis Setchell & Gardner Setchell & Gardner, 1937A Is. San Martin, Baja Calif. Fam. Hypneaceae Hypnea adunca J. Agardh Kylin, 1941 Santa Barbara; San Diego, Calif. Hypnea californica Kylin Kylin, 1941 ; Taylor, 1945 La Jolla, Calif. ; Bahia Petatlan, Guerrero Hypnea Esperi Bory Dawson, 1944 ; 1946 La Jolla, Calif. ; Ensenada, Baja Calif. ; Is. Tiburon, Gulf of Calif, to Bahia Agua Verde, Baja Calif. Hypnea Evermanii Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Hypnea Johnstonii Setchell & Gardner Dawson, 1944; Taylor, 1945 Cabo San Lazaro; Bahia Santa Maria, Baja Calif.; Pond Is., Gulf of Calif, to Guaymas, Sonora Hypnea nidifica J. Agardh Dawson, 1944 Punta Pehasco, Sonora to Costa Rica Hypnea nidulans Setchell Dawson, 1944 Pond Is., Gulf of Calif, to Bahia Agua Verde, Baja Calif. Hypnea pannosa J. Agardh Dawson, 1944; Taylor, 1945 Is. Tiburon, Gulf of Calif, to Is. Secas, Panama Hypnea spinella (C. Agardh) Kiitzing Taylor, 1945 Bahia Petatlan, Guerrero Hypnea variabilis Okamura Dawson, 1946 La Jolla, Calif. ; Ensenada, Baja Calif. 80 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fam. Rhodophyllidaceae Euthora cristata (Linnaeus) J, Agardh Setchell & Gardner, 1903 Shumagin Is. to Cook Inlet, Alaska Euthora fruticulosa (Ruprecht) T Aeardh Kylin, 1925 ^ J- s Vancouver Is., B. C. to Friday Harbor, Wash. Rhodophyllis dichotoma f. setacea Kjellman Setchell & Gardner, 1903 Unalaska, Alaska Fam. Plocamiaceae Plocamium pacificum Kylin Smith, 1944; Taylor, 1945; Dawson, 1945E Vancouver Is., B. C. to Is. Clarion, Revilla Gigedo Arch. Plocamium tenue Kylin Kylin, 1925 Friday Harbor, Wash. Plocamium violaceum Farlow Smith, 1944 Vancouver Is., B. C. to San Diego, Calif. Plocamiocolax pulvinata Setchell Smith, 1944; Dawson, 1945C San Juan Is., Wash, to La Jolla, Calif. Fam. Gracilariaceae Corallopsis salicornia (C. Agardh) Greville Kylin, 1932 Unalaska, Alaska (a very doubtful record) Gracilaria Andersonii (Grunow) Kylin Kylin, 1941 ; Dawson, 1945E La Jolla, Calif, to Cabo Colnett, Baja Calif. Gracilaria cerrosiana Taylor Taylor, 1945 Is. Cedros, Baja Calif. Gracilaria compressa (C. Agardh) Greville Dawson, 1944 Vicinity of Guaymas, Sonora 81 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Gracilaria confervoides (Linnaeus) Greville Dawson, 1944; 1945B; Taylor, 1945 San Diego, Calif.; Gulf of Calif.; Is. Clarion, Revilla Gigedo Arch. Gracilaria crispata Setchell & Gardner Dawson, 1944 Is. Tiburon, Gulf of Calif. ; Is. Clarion, Revilla Gigedo Arch. ; Bahia Banderas Gracilaria guaymasensis Dawson Dawson, 1944 Guaymas, Sonora Gracilaria Hancockii Dawson Dawson, 1944 r r- rc Is. Angel de la Guarda; Is. Tiburon, Gulf of Calif. Gracilaria Johnstonii Setchell & Gardner Dawson, 1944; Taylor, 1945 ^ . v r u f Punta Turloe, Baja Calif, to Is. Isabel, Nayant; Gulf ot Calif. Gracilaria lacerata Setchell & Gardner Dawson, 1944 Santa Rosalia, Baja Calif.; Guaymas, Sonora Gracilaria lichenoides (Linnaeus) Harvey Dawson, 1944 Bahia Concepcion, Baja Calif, (doubtful) Gracilaria linearis Kylin Smith, 1944; Dawson, 1945B ; 1945E _ Monterey Peninsula; San Pedro, Calif.; Punta Des- canso, Baja Calif. Gracilaria pachydermatica Setchell & Gardner Dawson, 1944 Is. Tortuga, Gulf of Calif. Gracilaria panamensis Taylor Taylor, 1945 Puerto Culebra, Costa Rica; Is. Taboga, Panama Gracilaria pinnata Setchell & Gardner Dawson, 1944; Taylor, 1939; 1945 Bahia Magdalena, Baja Calif.; Is. Angel de la Guarda, Gulf of Calif, to Is. Marla Magdalena, Nayant Gracilaria robusta Setchell Smith, 1944 Monterey Peninsula, Calif. 82 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Gracilaria Sjoestedtii Kylin Smith, 1944; Dawson, 1944; 1945E Vancouver Is., B. C. to Cabo Colnett, Baja Calif.; Bahia Tepoca, Sonora Gracilaria subsecundata Setchell & Gardner Dawson, 1944 Guaymas, Sonora Gracilaria tenuifolia Taylor Taylor, 1945 Is. Socorro ; Is. Clarion, Revilla Gigedo Arch. Gracilaria veleroae Dawson Dawson, 1944; 1946 Bahia San Felipe, Baja Calif, to Guaymas, Sonora; La Jolla; Coronado, Calif.; Is. Socorro; Is. Clarion, Revilla Gigedo Arch. Gracilaria Vivesii Howe Dawson, 1944 Guaymas, Sonora to La Paz, Baja Calif. Gracilariophila Gardneri Setchell Setchell, 1923; Dawson, 1945C Santa Monica to La Jolla, Calif. Gracilariophila oryzoides Setchell & Wilson Smith, 1944; Dawson, 1945E Coos Bay, Oregon to Cabo Colnett, Baja Calif. Tylotus Cunninghamii (J. Agardh) Kylin Kylin, 1941 ; Dawson, 1945C Santa Barbara to La Jolla, Calif. Fam. Dicranemaceae Dicranema rosaliae Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda to Is. Espiritu Santo, Gulf of Calif. Fam. Phyllophoraceae Phyllophora californica (J. Agardh) Kylin Kylin, 1932 San Francisco, Calif. Phyllophora Clevelandii Farlow Smith, 1944 Bolinas, Calif, to near Rosarita Beach, Baja Calif. 83 Mkhoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Petroglossum pacificum Hollenberg Hollenberg, 1943; 1945 Coos Bay, Oregon to La Jolla, Calif. Petroglossum parvum Hollenberg Hollenberg, 1945 Laguna Beach; La Jolla, Calif. Ahnfeltia gigartinoides J. Agardh Smith, 1944; Taylor, 1945 Vancouver Is. B. C. to San Agustin, Oaxaca Ahnfeltia plicata (Hudson) Fries Smith, 1944 Bering Sea to Carmel, Calif. Gymnogongrus carnosus Setchell & Gardner Dawson, 1944 Is. San Pedro Martir, Gulf of Calif. Gymnogongrus divaricatus Holmes Dawson, 1944 Turner’s Is., Gulf of Calif. Gymnogongrus Hancockii Dawson Dawson, 1944 Kino, Sonora Gymnogongrus leptophyllus J. Agardh Smith, 1944; Dawson, 1945E San Francisco to San Diego, Calif.; Cabo Colnett, Baja Calif. Gymnogongrus linearis (Turner) J. Agardh Smith, 1944 Coos Bay, Oregon to San Luis Obispo Co., Calif. Gymnogongrus martinensis Setchell 8i Gardner Setchell & Gardner, 1937A; Taylor, 1945 Is. San Martin, Bahia San Bartolome, Baja Calif.; Is. Socorro, Revilla Gigedo Arch. Gymnogongrus norvegicus (Turner) J. Agardh Collins, 1913 Ucluelet, Vancouver, B. C. Gymnogongrus platyphyllus Gardner Smith, 1944 Bolinas, Calif, to Ensenada, Baja Calif. Gymnogongrus sinicola Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- nora 84 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Stenogramme californica Harvey Smith, 1944 San Juan Is., Wash, to San Diego, Calif. Stenogramme interrupta (C. Agardh) Montagne Taylor, 1945 Is. Clarion; Is. Socorro, Revilla Gigedo Arch. Fam. Gigartinaceae Chondrus crispus (Linnaeus) Lyngbye Setchell & Gardner, 1903 Bering Sea to Unalaska, Alaska Gigartina Agardhii Setchell & Gardner Smith, 1944; Sanborn & Doty, 1946 Coos Bay, Oregon to La Jolla, Calif. Gigartina armata J. Agardh Setchell & Gardner, 1933; Taylor, 1945 San Diego, Calif, to Is. Cedros, Baja Calif. Gigartina asperifolia J. Agardh Setchell & Gardner, 1933 Santa Barbara to La Jolla, Calif. Gigartina Binghamiae J. Agardh Setchell & Gardner, 1933 ; Sanborn & Doty, 1946 Coos Bay, Oregon ; Southern Calif. ; Puget Sound ? Gigartina Boryi Setchell & Gardner Smith, 1944 Pacific Grove to San Diego, Calif. Gigartina californica J. Agardh Smith, 1944; Sanborn & Doty, 1946; Dawson. 1945E Coos Bay, Oregon to Carmel, Calif.; Punta Descanso; Cabo Colnett, Baja Calif. Gitartina canaliculata Harvey Smith, 1944; Dawson, 1945E Coos Bay, Oregon to Cabo Colnett, Baja Calif. Gigartina corymbifera (Kiitzing) J. Agardh Smith, 1944 Fort Ross to San Diego, Calif. Gigartina cristata (Setchell) Setchell & Gardner Smith, 1944; Dawson, 1945E Westport, Wash, to Point Sur, Calif. ; Punta Descanso, Baja Calif. 85 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Gigartina dichotoma Gardner Setchell & Gardner, 1933 Duxbury Reef, Marin Co. to Point Sur, Calif. Gigartina Eatoniana J. Agardh Setchell & Gardner, 1933 ; Dawson, 1944 Santa Barbara to La Jolla, Calif.; Puerto Libertad, So- nora to Is. Tiburon, Gulf of Calif. Gigartina echinata Gardner Setchell & Gardner, 1933 Santa Cruz ( ?) ; Santa Catalina Is. ; La Jolla, Calif. Gigartina exasperata Harvey & Bailey Setchell & Gardner, 1933 Vancouver Is., B. C. to northen Calif. Gigartina Harveyana (Kiitzing) Setchell & Gardner Smith, 1944; Dawson, 1945E Santa Cruz, Calif, to Punta Descanso, Baja Calif. Gigartina Jardinii J. Agardh Setchell & Gardner, 1933 Monterey ; Santa Barbara, Calif. Gigartina Johnstonii Dawson Dawson, 1944 Bahia Gonzaga, Baja Calif, to Turner’s Is., Gulf of Calif. Gigartina latissima (Harvey) Eaton Setchell & Gardner, 1933 Near Esquimault, B. C. Gigartina leptorhynchos J. Agardh Smith, 1944 ; Taylor, 1945 ; Dawson, 1945E Santa Cruz, Calif, to Is. Cedros, Baja Calif. Gigartina Macdougalii Dawson Dawson, 1944 Puerto Libertad, Sonora Gigartina mamillosa (Goodenough & Woodward) b Agardh Setchell & Gardner, 1933 Westport, Wash. ; Seal Rocks, Oregon Gigartina multidichotoma Dawson Dawson, 1946 , - La Jolla, Calif.; Punta Descanso, Baja Caht. Gigartina obovata J. Agardh Setchell & Gardner, 1933 San Francisco, Calif. 86 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Gigartina papillata (C. Agardh) J. Agardh Smith, 1944; Dawson, 1945E Tomales Bay to Carmel, Calif. ; Punta Descanso, Baja Calif. Gigartina pectinata Dawson Dawson, 1944; 1946 Punta Pehasco, Sonora; Bahia Los Angeles; Is. Angel de la Guarda, Gulf of Calif. Gigartina serrata Gardner Setchell & Gardner, 1933; Taylor, 1945 Balboa, Calif, to Is. Cedros, Baja Calif. Gigartina sitchensis Ruprecht Setchell & Gardner, 1933 Sitka, Alaska to Whidbey Is., Wash. Gigartina spinosa (Kiitzing) Harvey Smith, 1944; Dawson, 1945E Monterey, Calif, to Punta Descanso, Baja Calif. Gigartina stellata (Stackhouse) Batters Setchell & Gardner, 1933 West Coast of Vancouver Is., B. C. Gigartina tepida Hollenberg Hollenberg, 1945 ; Dawson, 1944 as G. Tecdii Balboa Harbor, Calif. ; Guay mas, Sonora Gigartina Turneri Setchell & Gardner Setchell & Gardner, 1933; Dawson, 1945B Southern Calif. ? Gigartina unalaschcensis (Ruprecht) Ruprecht Setchell & Gardner, 1933 Bering Sea to Whidbey Is., Wash. Rhodoglossum affine (Harvey) Kylin Smith, 1944; Sanborn & Doty, 1946; Dawson, 1945E Coos Bay, Oregon to Punta Descanso, Baja Calif. Rhodoglossum americanum Kylin Smith, 1944; Dawson, 1945B ; 1946 Bolinas to Carmel; Coronado, Calif.; Cabo Colnett, Baja Calif. Rhodoglossum coriaceum Dawson Dawson, 1946 Punta Banda; Punta Descanso, Baja Calif. Rhodoglossum Hancockii Dawson Dawson, 1944 Is. San Esteban, Gulf of Calif. 87 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Rhodoglossum latissimum J. Agardh Kylin, 1925 Whidbey Is., Wash. Rhodoglossum parvum Smith & Hollenberg Smith, 1944 Monterey, Calif. Rhodoglossum roseum (Kylin) G. M. Smith Smith, 1944; Dawson, 1946 Monterey Peninsula, Calif.; Punta Descanso, Baja Calif. Iridophycus californicum (J. Agardh) Dawson Dawson, 1945D; Iridea calif ornica in Kylin, 1941 Santa Barbara, Calif. ' Iridophycus cordatum (Turner) Setchell Sr Gardner Setchell, 1940; Setchell Sr Gardner, 1937 Table and Calvert Is. ; Vancouver Is., B. C. ; Whidbey Is., Wash. Iridophycus coriaceum Setchell Sr Gardner Smith, 1944 Neah Bay, Wash, to Carmel, Calif. Iridophycus flaccidum Setchell & Gardner Smith, 1944; Sanborn Sr Doty, 1946 Coos I3ay, Oregon to Point Sur, Calif. Iridophycus fulgens Setchell Sr Gardner Setchell Sr Gardner, 1937 Trinidad, Humboldt Co. to central Calif. Iridophycus furcatum Setchell Sr Gardner Setchell Sr Gardner, 1937 Sitka, Alaska Iridophycus heterocarpum (Postels Sr Ruprecht) Setchell Sr Gardner Smith, 1944 Vancouver Is., B. C. to Point Sur, Calif. Iridophycus lineare Setchell Sr Gardner Smith, 1944 Sunset Bay, Oregon to Ventura, Calif. Iridopfiycus Parksii Setchell Sr Gardner Setchell Sr Gardner, 1937 Trinidad, Calif. Iridophycus parvulum (Kjellman) Setchell Sr Gardner Setchell Sr Gardner, 1937 Unalaska; Kodiak Is., Alaska 88 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Iridophycus Reediae Setchell & Gardner Setchell & Gardner, 1937 Bushnell’s Beach, San Luis Obispo Co., Calif. Iridophycus sanguineum Setchell & Gardner Smith, 1944 Cape Arago, Oregon to Pacific Grove, Calif. Iridophycus sinicola Setchell & Gardner Setchell & Gardner, 1937 San Francisco Bay, Calif. Iridophycus splendens Setchell & Gardner Smith, 1944 Cape Kiawandi, Oregon to southern Calif. Iridophycus whidbeyanum Setchell & Gardner Setchell & Gardner, 1937 Whidbey Is., Wash. Erythrophyllum delessertoides T. Agardh Smith, 1944 Departure Bay, Alaska to San Luis Obispo Co.. Calif. Erythrophyllum Gmelini (Grunow) Yendo Setchell & Gardner, 1903 Agattu Is., Alaska Besa papillaeformis Setchell Smith, 1944 Lands End, San Francisco; Monterey, Calif. Order RHODYMENIALES Fam. Rhodymeniaceae Fauchea crispa Taylor Taylor, 1945 Is. Maria Magdalena, Nayarit Fauchea Fryeana Setchell Kylin, 1925 Vicinity of Friday Harbor, Wash. Fauchea laciniata J. Agardh Setchell, 1912; Kylin, 1941 Santa Barbara, Calif. S9 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Fauchea media Kylin Smith, 1944 Monterey Peninsula, Calif. Fauchea mollis Howe Dawson, 1944 La Paz, Baja Calif. Fauchea pygmaea (Setchell & Gardner) Kylin Kylin, 1941 San Pedro, Calif. Fauchea Sefferi Howe Dawson, 1944 La Paz, Baja Calif. Faucheocolax attenuata Setchell Smith, 1944 Monterey Peninsula, Calif. SciADOPHYCUS STELLATUS DaWSOn Dawson, 1945A San Diego, Calif. ; Is. Cedros, Baja Calif. LePTOFAUCHEA PACIFICA Dawsoii Dawson, 1945 A Is. Cedros, Baja Calif. Fryella Gardneri (Setchell) Kylin Kylin, 1931 Friday Harbor to Point Defiance, Wash. Botryocladia Hancockii Dawson Dawson, 1944 Bahia Agua Verde, Baja Calif. Botryocladia pseudodichotoma (Farlow) Kyhn Smith, 1944; Taylor, 1945 Vancouver Is., B. C. to Is. Maria Magdalena, Nayarit Is. Socorro, Revilla Gigedo Arch. Botryocladia pseudodichotoma var. datilensis Dawson Dawson, 1944 Is. Tiburon, Gulf of Calif. Botryocladia uvarioides Dawson Dawson, 1944 San Jose del Cabo; Cabo San Lucas, Baja Calif. Halosaccion glandiforme (Gmelin) Ruprecht Smith, 1944 . Westernmost Aleutian Islands, Alaska to Baja Cahi. 90 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Halosaccion eamentaceum (Linnaeus) J. Agardh Setchell & Gardner, 1903 Sannak Is. to Cook Inlet, Alaska Halosaccion Tilesii Kjellman Setchell & Gardner, 1903 Kukak Bay to Wrangel, Alaska Rhodymenia arborescens Dawson Dawson, 1941 Laguna Beach, Calif. Rhodymenia attenuata Dawson Smith, 1944 Monterey to San Pedro, Calif. Rhodymenia californica Kylin Smith, 1944; Dawson, 1945; Sanborn & Doty, 1946 Coos Bay, Oregon to San Diego, Calif. Rhodymenia Dawsonii Taylor Taylor, 1945 Cabo San Lazaro; Bahia Santa Maria, Baja Calif. Rhodymenia divaricata Dawson Dawson, 1944 Guaymas, Sonora; Is. Angel de la Guarda, Gulf of Calif. Rhodymenia Hancockii Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Rhodymenia lobata Dawson Smith, 1944; Dawson, 1944 Monterey, Calif.; near Is. Isabel, Nayarit Rhodymenia lobulifera Dawson Smith, 1944 Bolinas; Carmel; San Pedro, Calif. Rhodymenia pacifica Kylin Smith, 1944; Dawson, 1945D Coos Bay, Oregon to San Diego, Calif. Rhodymenia palmata (Linnaeus) Greville Dawson, 1941 Aleutian Is., Alaska ; British Columbia ; Puget Sound, Wash. Rhodymenia palmata f. mollis Setchell & Gardner Smith, 1944 Agattu Is., Alaska to Pacific Grove, Calif. 91 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Rhodymenia palmata f. sARNiENSis (Mertciis) J. Agardh Setchell & Gardner, 1903 Kodiak Is. to Orca, Alaska Rhodymenia palmettiformis Dawson Dawson, 1941 ; 1945 ; 1945E La Jolla, Calif.; Cabo Colnett, Baja Calif. Rhodymenia pertusa (Postels & Ruprecht) J. Agardh Kylin, 1925; Dawson, 1941 ; Sanborn & Doty, 1946 Alaska to Coos Bay, Oregon Rhodymenia rhizoides Dawson Dawson, 1941 ; 1945 San Pedro to San Diego, Calif. Rhodymenia rosea Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Rhodymenia stipitata Kylin Dawson, 1941 British Columbia; Puget Sound, Wash. Rhodymenia ( ?) tepocensis Dawson Dawson, 1944 Bahia Tepoca, Sonora; Pond Is.; Gulf of Calif. Rhodymeniocolax botryoidea Setchell Dawson, 1945D San Pedro to San Diego, Calif. Fam. Champiaceae Binghamiella californica Setchell & Dawson Setchell & Dawson, 1941 Santa Barbara to Santa Monica, Calif. Binghamiella Forkii Dawson Dawson, 1945 La Jolla, Calif. Lomentaria Baileyana (Harvey) Farlow Taylor, 1945 Revilla Gigedo Arch. ; Puerto Culebra, Costa Rica Lomentaria Caseae Dawson Dawson, 1946 Del Mar, Calif. 92 Memoirs, So. Calii’. Academy of Sciences Vol. 3, Part 1, 1946 Lomentaria catenata Harvey Dawson, 1944 Pond Is. to Is. Tortuga, Gulf of Calif. Lomentaria Drouetii Dawson Dawson, 1944 Guaymas, Sonora Lomentaria hakodatensis Yendo Dawson, 1944 Is. Guadalupe, Baja Calif. ; Is. Angel de la Guarda, Gulf of Calif. ; Guaymas, Sonora Champia caespitosa Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Champia disticha Dawson Dawson, 1944 Is. Angel de la Guarda; Is. San Esteban, Gulf of Calif. Champia parvula (C. Agardh) Harvey Dawson, 1944 Is. Tiburon, Gulf of Calif, to San Jose del Cabo, Baja Calif. ; Is. Clarion, Revilla Gigedo Arch. Gastroclonium clavatum (Roth) Ardissone Dawson, 1944 Bahia San Bartholome, Baja Calif.; Punta Pehasco to Guaymas, Sonora Gastroclonium Coulteri (Harvey) Kylin Smith, 1944; Dawson, 1945E Nootka Sound, B. C. to Cabo Colnett, Baja Calif. CoELOSEiRA compressa Hollenberg Smith, 1944 Pacific Grove, Calif, to Punta Banda, Baja Calif. CoELOSEiRA PARVA Hollenberg Hollenberg, 1940 Redondo to La Jolla, Calif, Order CERAMIALES Fam. Ceramiaceae Trailliella intricata (J. Agardh) Batters Kylin, 1925 Friday Harbor, Wash. 93 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Antithamnion alternans Gardner Gardner, 1927B Cook Inlet, Alaska Antithamnion asymmetricum Gardner Gardner, 1927C Sitka, Alaska Antithamnion Baylesiae Gardner Smith, 1944 Monterey Peninsula, Calif. Antithamnion defectum Kylin Smith, 1944; Sanborn & Doty, 1946 Friday Harbor, Wash, to Monterey, Calif. Antithamnion dendroideum Smith & Hollenberg Smith, 1944 Monterey, Calif. Antithamnion densiusculum Gardner Smith, 1944 Vancouver, B. C. ; Puget Sound, Wash.; Pacific Grove, Calif. Antithamnion floccosum (Muller) Kleen Kylin, 1925 Friday Harbor, Wash. Antithamnion Gardneri J. DeToni J, DeToni, 1935 ; Antithamnion tenuissimum in Gardner 1927B La Jolla, Calif. Antithamnion glanduliferum Kylin Smith, 1944 Puget Sound, Wash, to Carmel, Calif. Antithamnion Kylinii Gardner Smith, 1944 Victoria, B. C. ; Monterey, Calif. Antithamnion nigricans Gardner Gardner, 1927C Vancouver Is., B. C. Antithamnion occidentale Kylin Smith, 1944; Dawson, 1945B Puget Sound, Wash.; Carmel; La Jolla, Calif. Antithamnion pacificum (Harvey) Kylin Smith, 1944; Dawson, 1944 Yakutat Bay, Alaska to La Jolla, Calif.; Bahia Tepoca; Guaymas, Sonora 94 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Antithamnion pulchellum Gardner Gardner, 1927C Santa Monica, Calif. Antithamnion pygmaeum Gardner Smith, 1944 Pacific Grove to San Diego, Calif. Antithamnion secundatum Gardner Gardner, 1927C San Diego, Calif. Antithamnion setaceum Gardner Gardner, 1927B San Diego, Calif. Antithamnion simulans Gardner Gardner, 1927B Sitka, Alaska Antithamnion sublittorale Setchell & Gardner Dawson, 1944 San Jose del Cabo, Baja Calif. Antithamnion subulatum (Harvey') T. Asfardh Smith, 1944 Puget Sound, 'Wash. ; Monterey, Calif. Antithamnion uncinatum Gardner Smith, 1944 Puget Sound, Wash, to Carmel, Calif. Platythamnion heteromorphum J. Agardh Smith, 1944 San Francisco to San Pedro, Calif. Platythamnion pectinatum Kylin Smith, 1944; Dawson, 1945E Puget Sound, Wash, to San Pedro, Calif. ; Cabo Col- nett, Baja Calif. Platythamnion pectinatum var. laxum Taylor Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. Platythamnion reversum (Setchell & Gardner) Kylin K3din, 1925 Whidbey Is., Wash. Platythamnion tepocensis Dawson Dawson, 1944 Bahia Tepoca, Sonora 95 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Platythamnion villosum Kylin Smith, 1944 Sitka, Alaska; Puget Sound, Wash, to Monterey, Calif. Callithamnion acutum Kylin Kylin, 1925 San Juan Is., Wash. Callithamnion arborescens Gardner Gardner, 1927B Sitka, Alaska Callithamnion biseriatum Kylin Smith, 1944 Friday Harbor, Wash.; Monterey, Calif. Callithamnion bisporum Gardner Gardner, 1927C San Juan Is., Wash. Callithamnion breviramosum Gardner Gardner, 1927C La Jolla, Calif. Callithamnion byssoides Arnott Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Callithamnion californicum Gardner Smith, 1944 Monterey Peninsula, Calif. Callithamnion endovaginum Setchell & Gardner Kylin, 1941 ; Dawson, 1944 La Jolla, Calif. ; Guaymas, Sonora Callithamnion laxum Setchell & Gardner Gardner, 1927C Straits of Juan de Fuca; San Juan Co., Wash. Callithamnion pacificum Taylor Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. Callithamnion Pikeanum Harvey Smith, 1944 Vallenar Point, Alaska to Carmel, Calif. Callithamnion Pikeanum var. pacificum (Harvey) Setchell & Gardner Gardner, 1927C Shumagin Is., Alaska to Straits of Juan de Fuca 96 Memoirs, So. Calif. Academy of S'ciences Vol. 3, Part 1, 1946 Callithamnion ramosissimum Gardner Gardner, 1927C La Jolla, Calif. Callithamnion rupicolum Anderson Smith, 1944 Fort Ross to La Jolla, Calif. Callithamnion soccoriense Taylor Taylor, 1945 Is. Socorro, Revilla Gigedo Arch. Callithamnion squarrulosum Harvey Harvey, 1853; J. Agardh, 1876 Golden Gate (San Francisco) Calif, Callithamnion veleroae Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif.; Bahia Tepoca, Sonora Spyridia filamentosa (Wulfen) Harvey Setchell & Gardner, 1930; Kylin, 1941 ; Taylor, 1945 Southern Calif. ; Is. Guadalupe, Baja Calif. ; Is. Taboga, Panama Crouania attenuata (Bonnemaison) J. Agardh Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. ? Gymnothamnion elegans (Schousboe) J. Agardh Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Haloplegma mexicanum Taylor Taylor, 1945 Is. ]\Iaria Magdalena, Nayarit Pleonosporium abysicola Gardner Gardner, 1927B Friday Harbor, Wash. Pleonosporium dasyoides (J. Agardh) DeToni Smith, 1944; Dawson, 1946 Tomales Bay to San Pedro, Calif.; Punta Descanso, Baja Calif. Pleonosporium polycarpum Gardner Gardner, 1927B La Jolla, Calif. 97 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Pleonosporium pygmaeum Gardner Gardner, 1927B La Jolla, Calif. Pleonosporium squarrosum Kylin Kylin, 1925 San Juan Is., Wash. Pleonosporium squarrosum var. obovatum Gardner Gardner, 1927C; Dawson, 1945D Sidney, Vancouver Is., B. C. Pleonosporium vancouverianum J. Agardh Smith, 1944 Vancouver Is., B. C. ; Puget Sound, Wash.; Monterey, Calif. Spermothamnion saccorhiza (Setchell & Gardner) Feld- mann-Mazoyer Feldmann-Mazoyer, 1942; Pleonosporium saccorhiza in Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Spermothamnion Snyderae Farlow Smith, 1944; Dawson, 1945E Bolinas, Calif, to Punta Descanso, Baja Calif. Griffithsia multiramosa (Setchell & Gardner) Taylor Dawson, 1944; 1945B San Diego. Calif.; Is. Angel de la Guarda, Gulf of Cali- fornia to San Jose del Cabo, Baja Calif. Griffithsia multiramosa var. balboensis Hollenberg Hollenberg, 1945 Balboa Harbor, Calif. Griffithsia multiramosa var. minor Taylor Taylor, 1939 Punta Gorda, Baja Calif. Griffithsia pacifica Kylin Smith 1944; Dawson, 1944; Taylor, 1945 Puget Sound, Wash, to San Diego, Calif.; Bahia Te- poca ; Guaymas, Sonora; Is. Clarion, Revilla Gigeda Arch. ? Griffithsia Schoesboei Montagne Collins, 1913 Vancouver Is., B. C. (?) (probably G. pacifica) Griffithsia tenuis C. Agardh Dawson, 1944 Punta Pehasco, Sonora to Is. Tiburon, Gulf of Calif. 98 Memoirs, So. Calif. Acadf-mv of Sciences Vol. 3, Part 1, 1946 Ceramium affine Setchell & Gardner Dawson, 1944 Is. Guadalupe, Baja Calif. ; Is. Angel de la Guarda, Gulf of Calif. Ceramium californicum J. Agardh Kylin, 1941 Puget Sound, Wash, to southern Calif. Ceramium Camouii Dawson Dawson, 1944 Turner’s Is., Gulf of Calif. Ceramium caudatum Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to La Paz Baia Calif. ’ ■’ Ceramium clarionensis Setchell & Gardner Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Ceramium codicola J. Agardh Smith, 1944; Dawson, 1944; 1945E Sitka, Alaska to San Jose del Cabo, Baja Calif. Ceramium codiophila Setchell & Gardner Setchell & Gardner, 1937; Dawson, 1945C La Jolla, Calif.; Is. Guadalupe, Baja Calif. Ceramium Eatonianum (Farlow) DeToni Smith, 1944; Taylor, 1945; Dawson, 1945E Coos Bay, Oregon to Is. Cedros, Baja Calif. Ceramium equisetoides Dawson Dawson, 1944 Bahia Tepoca, Sonora to Mazatlan, Sinaloa Ceramium Evermannii Setchell & Gardner Setchell & Gardner, 1931 ; Dawson, 1945E Is. Guadalupe, Cabo Colnett, Baja Calif. Ceramium fastigiatum Harvey Taylor, 1939; 1945 Cabo San Lucas, Baja Calif. ; Bahia Petatlan, Guerrero Ceramium fimbriatum Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to San Jose del Cabo, Baja Calif. 99 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ceramium Gardneri Kylin Smith, 1944 Coos Bay, Oregon to Carmel, Calif. Ceramium gracillimum Griffiths & Harvey Dawson, 1944 Is. Guadalupe, Baja Calif.; Turner’s Is., Gulf of Calif.; San Jose del Cabo, Baja Calif. Ceramium horridum Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- nora Ceramium ornatum Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Ceramium pacificum (Collins) Kylin Smith, 1944; Dawson, 1945E Vancouver Is., B. C. to Santa Barbara, Calif. ; Punta Descanso, Baja Calif. Ceramium paniculatum Okamura Dawson, 1944 Guaymas, Sonora Ceramium personatum Setchell & Gardner Setchell & Gardner, 1930; Taylor, 1945 Is. Guadalupe, Baja Calif.; Port Parker, Costa Rica Ceramium procumbens Setchell & Gardner Dawson, 1944 _ -j r- Bahia San Francisquito, Baja Calif. ; Is. Partida, Gulf of Calif. Ceramium rubrum (Hudson) C. Agardh Setchell & Gardner, 1903; Collins, 1913 Bering Sea to Puget Sound, Wash. Ceramium serpens Setchell & Gardner Dawson, 1944 . Is Angel de la Guarda, Gulf of Calif, to La Paz, Baja Calif. Ceramium sinicola Setchell & Gardner Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- Ceramium sinicola var. interruptum (Setchell & Gardner) Dawson Dawson, 1944 Near La Paz, Baja Calif. 100 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ceramium sinicola var. Johnstonii (Setchell & Gardner) Dawson Dawson, 1944 Is. San Esteban ; Is. San Pedro Martir, Gulf of Calif. Ceramium strictum Harvey Collins, 1913 Vancouver Is., B. C. Ceramium washingtoniense Kylin Kylin, 1925 San Juan Is., Wash. Ceramium zacae Setchell & Gardner Setchell & Gardner, 1937A ; Dawson, 1945E Cabo Colnett; Bahia San Bartolome, Baja Calif. Ceramium zebrinum J. Agardh J. Agardh, 1894 Santa Cruz, Calif. Centroceras bellum Setchell & Gardner Dawson, 1944 Guaymas, Sonora Centroceras clavulatum (C. Agardh) Montague Smith, 1944; Dawson, 1944; 1945E; Taylor, 1945 Santa Cruz, Calif, to Panama Microcladia borealis Ruprecht Smith, 1944 Unalaska, Alaska to San Simeon, Calif. Microcladia californica Farlow Smith, 1944 San Francisco to San Diego, Calif. Microcladia Coulteri Harvey Smith, 1944; Dawson, 1945E Vancouver Is., B. C. to Punta Descanso, Baja Calif. Ptilota asplenioides (Turner) C. Agardh Setchell & Gardner, 1903 Alaska to Puget Sound, Wash. Ptilota californica Ruprecht Smith, 1944 Cape Arago, Oregon to San Diego, Calif. Ptilota densa C. Agardh Smith, 1944; Dawson, 1945B Tomales Bay to San Diego, Calif. 101 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Ptilota filicina (Farlow) J. Agardh Smith, 1944 Bering Sea to Carmel, Calif. Ptilota hypnoides Harvey Smith, 1944 Sitka, Alaska to San Luis Obispo Co., Calif. Ptilota pectinata (Gunner) Kjellman Setchell & Gardner, 1903 ; Kylin, 1925 Bering Sea to Puget Sound, Wash. Ptilota tenuis Kylin Kylin, 1925 Friday Harbor, Wash. Fam. Delesseriaceae Branchioglossum Woodii (J. Agardh) Kylin Smith, 1944; Dawson, 1944 Vancouver Is., B. C. ; Monterey to Santa Barbara, Calif. ; Puerto Libertad to Guaymas, Sonora Hypoglossum abyssicolum Taylor Taylor, 1945 Is. Las Tres Marias, Nayarit; Puerto Culebra, Costa Rica Hypoglossum attenuatum Gardner Dawson, 1944 Puerto Libertad to Guaymas, Sonora Hypoglossum retusum Dawson Dawson, 1945 A Is. Cedros, Baja Calif. Membranoptera denticulata (Montagne) Kylin Kylin, 1924; Pteridium spimilosum in Setchell & Gard- ner, 1903 Bering Sea to Morzhovoi Bay, Alaska Membranoptera dimorpha Gardner Gardner, 1926; Sanborn, & Doty, 1946 Queen Charlotte Is., B. C. to Coos Bay, Oregon Membranoptera multiramosa Gardner Smith, 1944 San Mateo Co. to Monterey, Calif. 102 Memoirs, So. Calif. Academy of S'ciences Vol. 3, Part 1, 1946 Membranoptera platyphylla (Setchell & Gardner ) Kylin Kylin, 1925 Puget Sound to Pleasant Beach, Wash. Membranoptera Setchellii Gardner Gardner, 1926 Morzhovoi Bay, Alaska Membranoptera tenuis Kylin Kylin, 1925 Friday Harbor, Wash. Membranoptera Weeksiae Setchell & Gardner Jao, 1937; Smith, 1944; Dawson, 1946 Seattle, Wash.; San Francisco to San Diego, Calif. Holmesia californica (Dawson) Dawson Dawson, 1945D San Diego, Calif. Delesseria decipiens J. Agardh Smith, 1944 Prince William Sound, Alaska to Carmel, Calif. Platysiphonia Clevelandii (Farlow) Papenfuss Papenfuss, 1944 Pacific Grove to San Diego, Calif. Taenioma perpusillum J. Agardh Dawson, 1944; Papenfuss, 1944 Bahia Gonzaga to Bahia Agua Verde, Baja Calif. Erythroglossum californicum j. Agardh Smith, 1944 Monterey to Santa Barbara, Calif. Erythroglossum INTERMEDIUM (T. Apardh) Kylin Kylin, 1944 Esquimault, B. C. SoRELLA DELicATULA (Gardner) Hollenberg Hollenberg, 1943 San Pedro, Calif. SoRELLA DELICATULA var. CALIFORNICA Hollenberg Hollenberg, 1943 Southern Calif. SoRELLA DiVARicATA (Setchell & Gardner) Hollenberg Plollenberg, 1943; Ervthroglossum divaricafa in Smith. 1944 Pacific Grove, Calif. 103 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 SoRELLA PiNNATA Hollenberg Hollenberg, 1943; Dawson, 1944 * Southern Calif. ; Is. Angel de la Guarda, Gulf of Calif. Grinnellia lanceolata Dawson Dawson, 1944 Punta Gorda, Cape district, Baja Calif. PoLYNEURA LATissiMA (Harvey) Kylin Smith, 1944; Dawson, 1945A Vancouver, B. C. to Is. Cedros, Baja Calif. PoLYNEURELLA Hancockii Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. Nienburgia Andersoniana (J. Agardh) Kylin Smith, 1944; Taylor, 1945; Dawson, 1945E Santa Cruz, Calif, to Is. Cedros, Baja Calif. Nienburgia borealis (Kylin) Kylin Kylin, 1935 ; Heteronema boreale in Kylin, 1925 Friday Harbor, Wash. Phycodrys ambigua Gardner Gardner, 1927A Sitka, Alaska Phycodrys bullata Gardner Gardner, 1927A Agattu Is. to Sitka, Alaska Phycodrys Riggii Gardner Gardner, 1927A Kukak Bay to Prince William Sound, Alaska « Phycodrys Setchellii Skottsberg Smith, 1944; Dawson, 1945A; 1945E Bolinas, Calif, to Is. Cedros, Baja Calif. PoLYCORYNE Gardneri Setchell Smith, 1944 Marin Co. ; Monterey Peninsula, Calif. POLYCORYNE PHYCODRICOLA DawSOn Dawson, 1945A Is. Cedros, Baja Calif. Anisocladella PACIFICA Kylin Smith, 1944; Dawson, 1945E Santa Cruz, Calif, to Cabo Colnett, Baja Calif. Myriogramme divaricata Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif. 104 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Myriogramme Hollenbergii Kylin Smith, 1944 Monterey, Calif. Myriogramme pulchra Gardner Gardner, 1926 Puget Sound to Tacoma, Wash. Myriogramme repens Hollenberg Hollenberg, 1945 Point Vicente, Calif. Myriogramme spectabilis (Eaton) Kylin Smith, 1944 Santa Cruz to Redondo, Calif. Acrosorium uncinatum (J. Agardh) Kylin Kylin, 1941; Taylor, 1945; Dawson, 1945A; 1945E Southern Calif, to Bahia Santa Maria, Baja Calif. Pantoneura Baerii (Ruprecht) Kylin Kylin, 1924 Sitka, Alaska Pantoneura Juergensii (J. Agardh) Kylin Kylin, 1924 Bering Sea to Unalaska, Alaska Nitophyllum mirabile Kylin Kylin, 1925 Friday Harbor, Wash. Hymenena flabelligera (T. Agardh) Kylin Smith, 1944 Puget Sound, Wash, to Carmel, Calif. Hymenena Kylinii Gardner Smith, 1944 San Francisco to Monterey, Calif. Hymenena multiloba (T. Agardh) Kylin Smith, 1944 Cape Mendocino to Carmel, Calif. Hymenena Setchellii Gardner Smith, 1944 Puget Sound, Wash, to Carmel, Calif. Hymenena Smithii Kylin Smith, 1944 Carmel, Calif. Cryptopleura brevis Gardner Gardner, 1927 Moss Beach, San Mateo Co., Calif. 105 Memoirs, So. Calif, Academy of Sciences Vol. 3, Part 1, 1946 Cryptopleura corallinara (Nott) Gardner Gardner, 1927 San Diego Co., Calif. Cryptopleura crispa Kylin Kylin, 1941 ; Dawson, 1945E La Jolla, Calif.; Punta Descanso, Baja Calif. Cryptopleura dichotoma Gardner Gardner, 1927 San Pedro, Calif. Cryptopleura lobulifera (J. Agardh) Kylin Smith, 1944; Taylor, 1945 Tomales Bay to Morro Bay, Calif. ; Bahia Santa Maria, Baja Calif, Cryptopleura Ruprechtiana (J. Agardh) Kylin Kylin, 1925 Sitka, Alaska to northern Calif. Cryptopleura spatulata Gardner Gardner, 1927 Santa Barbara; San Pedro, Calif. Crypto PLEURA violacea (J. Agardh) Kylin Smith, 1944; Dawson, 1945B; 1945E Vancouver Is., B. C. to Cabo Colnett, Baja Calif. Botryoglossum Farlowianum (J. Agardh) G. DeToni Smith, 1944; Dawson, 1945B Puget Sound, Wash, to San Diego, Calif. Gonimophyllum Skottsbergii Setchell Smith, 1944; Dawson, 1945C Friday Harbor, Wash, to San Diego, Calif. Fam. Dasyaceae Dasya californica Gardner Gardner, 1927A ; Dawson, 1945B Southern Calif. Dasya Eastwoodae Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Dasya pedicellata C. Agardh Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif, to Guaymas, So- nora 106 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Dasya Stanfordiana Farlow Setchell & Gardner, 1930; Taylor, 1945 Is. Guadalupe, Baja Calif. ; Is. Las Tres Marias, Nayarit Dasyopsis densa G. M. Smith Smith, 1944 Santa Cruz to Carmel, Calif. Dasyopsis plumosa (Harvey & Bailey) Schmitz Kylin, 1925 ; Collins, 1913 Vancouver Is., B. C. to northern Calif. Pogonophora californica J. Agardh Kylin, 1941 ; Dawson, 1945B ; 1945E Santa Barbara, Calif, to Punta Descanso, Baja Calif. Heterosiphonia asymmetria Hollenberg Hollenberg, 1945 Corona del Mar, Calif. Heterosiphonia densiuscula Kylin Kylin, 1925 Friday Harbor, Wash. Heterosiphonia erecta Gardner Gardner, 1927D; Setchell & Gardner, 1937A: Taylor 1945 ’ Santa Monica, Calif, to Bahia Santa Maria, Baja Calif. Heterosiphonia laxa Kylin Kylin, 1925 Friday Harbor, Wash. Heterosiphonia sinicola Setchell & Gardner Dawson, 1944 Near La Paz, Baja Calif. Fam. Rhodomelaceae Orcasia senticulosa (Harvey) Kylin Kylin, 1941 Orcas Is., Wash.; Monterey, Calif. Polysiphonia acuminata Gardner Hollenberg, 1942A; Smith, 1944 Monterey to La Jolla, Calif. Polysiphonia bifurcata Hollenberg Taylor, 1945 Playa Blancas, Costa Rica 107 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 PoLYSiPHONiA Brodiaei (Dillwyn) Greville Hollenberg, 1944; Smith, 1944 Sausalito to Santa Monica, Calif. PoLYSiPHONiA CoLLiNSii Hollcnberg Hollenberg, 1944; Dawson, 1945E San Juan Co., Wash, to Cabo Colnett, Baja Calif. POLYSIPHONIA CoLLiNSii var. coMPACTA Hollenberg Hollenberg, 1944 Pacific Crove to southern Calif. PoLYSiPHONiA CoLLiNSii var. DELiQUESCENS Hollenberg Hollenberg, 1944 Prince William Sound, Alaska to Friday Harbor, Wash. POLYSIPHONIA COLLINSII var. LUXURiANS Holleiiberg Hollenberg, 1944 Cape Flattery; Friday Harbor, Wash. POLYSIPHONIA CONCINNA Hollenberg Hollenberg, 1944 Santa Catalina Is.; La Jolla, Calif. POLYSIPHONIA DECUSSATA Hollenberg Hollenberg, 1942 A Los Angeles Co. to San Diego Co., Calif. POLYSIPHONIA DiCHOTOMA Hollenberg Hollenberg, 1944 Santa Cruz ; San Diego, Calif. POLYSIPHONIA Eastwoodae Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. POLYSIPHONIA FLACCIDISSIMA Hollenberg Hollenberg, 1942 A Southern Calif. POLYSIPHONIA FLACCIDISSIMA var. Smithii Hollenberg Hollenberg, 1942A ; Smith, 1944 San Francisco to San Diego, Calif. POLYSIPHONIA guadalupensis Setchell & Gardner Hollenberg, 1944 Is. Guadalupe, Baja Calif. POLYSIPHONIA Hancockii Dawson Dawson, 1944 San Jose del Cabo, Baja Calif. t08 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 POLYSIPHONIA Hendryi Gardner Smith, 1944; Hollenberg, 1944; Taylor, 1945 Cape Arago, Oregon to Is. Cedros, Baja Calif. PoLYSiPHONiA HOMOIA Setchell & Gardner Hollenberg, 1944; Taylor, 1945 Is. Guadalupe, Baja Calif. ; Is. Socorro, Revilla Gigedo Arch. POLYSIPHONIA Howei Hollenberg Taylor, 1945 Bahia de Panama, Panama POLYSIPHONIA iNCONSPicuA Hollenberg Hollenberg, 1944 Southern Calif. POLYSIPHONIA JOHNSTONII Setchell & Gardner Hollenberg, 1944 Is. Angel de la Guarda; Is. San Esteban, Gulf of Calif. POLYSIPHONIA Macounii Hollenberg Hollenberg, 1942 A Vancouver, B. C. POLYSIPHONIA Marchantae Setchell & Gardner Hollenberg, 1944 La Paz, Baja Calif. POLYSIPHONIA Masonii Setchell & Gardner Hollenberg, 19^2A Is. Guadalupe, Baja Calif. POLYSIPHONIA MiNUTissiMA Hollenberg Hollenberg, 1942A; Dawson, 1945B Santa Catalina Is., Calif, to Punta Banda, Baja Calif. POLYSIPHONIA PACIFICA Hollenberg Hollenberg, 1942A ; Smith, 1944 Sitka, Alaska to Baja Calif. POLYSIPHONIA PACIFICA var. DELicATULA Hollenberg Hollenberg, 1942A Central Calif, to Gulf of Calif. POLYSIPHONIA PACIFICA var. DETERMiNATA Hollenberg Hollenberg, 1942A Alaska to central Calif. POLYSIPHONIA PACIFICA var. DiSTiCHA Hollenberg Hollenberg, 1942 A Vancouver Is., B. C. to central Calif. 109 Memoies, So. Calif. Academy of Sciences Vol, 3, Part 1, 1946 PoLYSiPHONiA PACIFICA var, GRACILIS Hollcnberg Hollenberg, 1942A British Columbia to central Calif. PoLYSiPHONiA PANicuLATA Montagne Hollenberg, 1944; Polysiphonia calif ornica in Smith, 1944; Dawson, 1944 Port Holmes, B. C. to Baja Calif. ; Punta Pehasco, So- nora Polysiphonia pungens Hollenberg Hollenberg, 1942A Alaska to Vancouver, B. C. Polysiphonia simplex Hollenberg Hollenberg, 1942A ; Dawson, 1944 Southern Calif. ; Bahia Gonzaga to Bahia Agua Verde, Baja Calif. Polysiphonia Snyderae Kylin Hollenberg, 1942A; Dawson, 1944 Washington to central Mexico Polysiphonia Snyderae var. heteromorpha Hollenberg Hollenberg, 1942A Vancouver, B. C. ; coast of Washington Polysiphonia Snyderae var. intricata Hollenberg Hollenberg, 1942A Guaymas, Sonora Polysiphonia sonorensis Hollenberg Hollenberg, 1942A ; Dawson, 1944 Guaymas; Empalme, Sonora Bryocladia dictyurus (J. Agardh) Taylor Taylor, 1945 Bahia Petatlan, Guerrero Rhodosiphonia californica Hollenberg Hollenberg, 1943 Santa Barbara to San Diego, Calif. Lophosiphonia mexicana Dawson Dawson, 1944 Is. Angel de la Guarda, Gulf of Calif.; Is. Clarion, Revilla Gigedo Arch. Lophosiphonia obscura (C. Agardh) Falkenberg Kylin, 1925 Friday Harbor, Wash. ? Lophosiphonia villum (J. Agardh) Setchell & Gardner Smith, 1944; Dawson, 1944; Taylor, 1945 Pacific Grove, Calif, to Golfo Dulce, Costa Rica 110 Memoiks, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Brogniartella mucronata (Harvey) Schmitz Taylor, 1945 Is. Maria Magdalena, Nayarit Veleroa subulata Dawson Dawson, 1944 Bahia Tepoca, Sonora Falkenbergia Hillebrandtii (Bornet) Falkenberg Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Pterosiphonia arctica Setchell & Gardner Kylin, 1925 Alaska to Puget Sound, Wash. Pterosiphonia Baileyi (Harvey) Falkenberg Smith, 1944; Taylor, 1945; Dawson, 1945E Crescent City, Calif, to Is. Cedros, Baja Calif. Pterosiphonia bipin nata (Postels & Ruprecht) Falken- berg Smith, 1944 Shumagin Is., Alaska to San Pedro, Calif. Pterosiphonia californica Kylin Kylin, 1941 La Jolla, Calif. Pterosiphonia dendroidea (Montagne) Falkenberg Smith, 1944; Dawson, 1944; 1945E; Taylor, 1945 Vancouver Is., B. C. to San Jose del Cabo, Baja Calif. Pterosiphonia gracilis Kylin Kylin, 1925; Sanborn & Doty, 1946 Friday Harbor, Wash, to Coos Bay, Oregon Pterosiphonia pennata (Roth) Falkenberg Dawson, 1944 Bahia Tepoca, Sonora Pterosiphonia robusta Gardner Gardner, 1927D Northern to central Calif. Pterosiphonia robusta var. divaricata Gardner Gardner, 1927D Sitka, Alaska Pterosiphonia robusta var. inermis Gardner Gardner, 1927D Neah Bay, Wash, to San Francisco Bay, Calif. Stromatocarpus Gardneri Setchell Setchell, 1923 ; Dawson, 1945C Santa Monica to La Jolla, Calif. Ill Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Pterochondria pygmaea (Setchell) Hollenberg Hollenberg, 1942 Southern Calif. Pterochondria Woodii (Harvey) Hollenberg Smith, 1944; Dawson, 1945E Vancouver, B. C. to San Pedro, Calif. ; Cabo Colnett, Baja Calif. Herposiphonia grandis Kylin Kylin, 1925 ; Sanborn & Doty, 1946 Friday Harbor, Wash, to Coos Bay, Oregon Herposiphonia parva Hollenberg Hollenberg, 1943; Herposiphonia pygmaea (by error) in Smith, 1944 Monterey, Calif, to Punta Banda, Baja Calif. Herposiphonia rigida Gardner Smith, 1944 Puget Sound, Wash, to Santa Monica, Calif. Herposiphonia rigida var. laxa Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Herposiphonia secunda (C. Agardh) Ambronn Taylor, 1945 Is. Jicarita, Panama Herposiphonia subdisticha Okamura Dawson, 1944 Is. San Esteban, Gulf of Calif. Herposiphonia tenella (C. Agardh) Nageli Dawson, 1944; Taylor, 1945 Kino, Sonora to Is. Las Tres Marias, Nayarit Herposiphonia verticillata (Harvey) Kvlin Smith, 1944 San Francisco, Calif, to Ensenada, Baja Calif. Amplisiphonia PACIFICA Hollenberg Smith, 1944; Dawson, 1945C Moss Beach, San Mateo Co., Calif, to Bahia de Todos Santos, Baja Calif. Jantinella sinicola (Setchell & Gardner) Kylin Dawson, 1944; Setchell & Gardner, 1930 La Pas, Baja Calif.; Is. Clarion, Revilla Gigedo Arch. Jantinella verrucaeformis (Setchell & McFadden) Kylin Kylin, 1941 San Pedro, Calif. 112 Memoiks, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Chondria acrorhizophora Setchell & Gardner Setchell & Gardner, 1924 Near La Paz, Baja Calif. Chondria arcuata Hollenberg Hollenberg, 1945 Corona del Mar; Laguna Beach, Calif. Chondria californica (Collins) Kylin Nylin, 1941; Taylor, 1945; Dawson, 1944; 1945E La Jolla, Calif, to Puerto Culebra, Costa Rica; Gulf of Calif. Chondria clarionensis Setchell & Gardner Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Chondria cuscutoides Dawson Dawson, 1946 La Jolla, Calif. Chondria dasyphylla (Woodward) C. Agardh Dawson, 1944; 1946 Bahia Gonzaga, Baja Calif, to Guaymas, Sonora Chondria decipiens Kylin Smith, 1944; Dawson, 1945B Santa Cruz to La Jolla, Calif. Chondria nidifica Harvey Kylin, 1941 ; Dawson, 1945E La Jolla, Calif.; Cabo Colnett, Baja Calif. Chondria oppositiclada Dawson Dawson, 1946 La Jolla, Calif. Chondria pacifica Setchell & Gardner Setchell & Gardner, 1937A Bahia San Bartholome, Baja Calif. Chondria platyclada Taylor Taylor, 1945 Puerto Culebra, Costa Rica Cfiondria secundata (J. Agardh) DeToni DeToni, 1903 Santa Barbara, Calif. Chondria telmoensis Dawson Dawson, 1946 La Jolla, Calif. ; Cabo Colnett, Baja Calif. Laurencia clarionensis Setchell & Gardner Setchell & Gardner, 1937A ; Taylor, 1945 Is. Clarion, Revilla Gigedo Arch. 113 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Laurencia crispa Hollenberg Smith, 1944 Monterey Peninsula, Calif. Laurencia diegoensis Dawson Dawson, 1944A ; 1945E Santa Monica to Cabo Colnett, Baja Calif. Laurencia estebaniana Setchell & Gardner Dawson, 1944 Smith Is. ; Is. San Esteban, Gulf of Calif. Laurencia Gardneri Hollenberg Smith, 1944 Monterey Peninsula, Calif. Laurencia Hancockii Dawson Dawson, 1944 Bahia Agua Verde, Baja Calif. Laurencia humilis Setchell & Gardner Setchell & Gardner, 1930 Is. Clarion, Revilla Gigedo Arch. Laurencia intricata Lamouroux Taylor, 1945 Bahia Petatlan, Guerrero Laurencia Johnstonii Setchell & Gardner Dawson. 1944 Bahia San Francisquito, Baja Calif.; Is. San Marcos: Is. Tiburon, Gulf of Calif. Laurencia Masonii Setchell & Gardner Setchell & Gardner, 1930 Is. Guadalupe, Baja Calif. Laurencia obtusiuscula Setchell & Gardner Dawson, 1944 Guaymas, Sonora to San Jose del Cabo, Baja Calif. Laurencia pacifica Kylin Smith, 1944; Dawson, 1945E Pacific Grove, Calif, to Punta Descanso, Baja Calif. Laurencia paniculata (C. Agardh) J, Agardh Dawson, 1944 Bahia Gonzaga to Bahia Agua Verde, Baja Calif. Laurencia papillosa var. pacifica Setchell & Gardner Dawson, 1944; Setchell & Gardner, 1930 Is. Guadalupe; La Paz, Baja Calif.; Is. Tiburon. Gulf of Calif. 114 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Laurencia peninsularis Taylor Taylor, 1945 Cabo San Lazaro, Baja Calif. Laurencia scrippsensis Dawson Dawson, 1944 La Jolla, Calif. Laurencia sinicola Setchell & Gardner Dawson, 1944 Is. San Marcos, Gulf of Calif.; Eureka, near La Paz, Baja Calif. Laurencia Snyderae Dawson Dawson, 1945 La Jolla, Calif. Laurencia spectabilis Postels & Ruprecht Smith, 1944; Dawson, 1944A Sitka, Alaska to Santa Monica, Calif. Laurencia splendens Hollenberg Smith, 1944; Dawson, 1945E Santa Cruz, Calif, to Cabo Colnett, Baja Calif. Laurencia subopposita (J. Agardh) Setchell Dawson, 1944A; Kylin, 1941 La Jolla to San Diego, Calif. Laurencia voragina Taylor Taylor, 1945 White Friars Is., Guerrero Ricardia saccata (J. Agardh) Kylin Smith, 1944 Pacific Grove to La Jolla, Calif.; Is. Guadalupe, Baja Calif. Janczewskia Gardneri Setchell & Guernsey Smith, 1944; Dawson, 1945B; 1945E Vancouver Is.. B. C. to Cabo Colnett, Baja Calif. Janczewskia lappacea Setchell Kylin, 1941 ; Dawson, 1945E San Pedro, Calif, to Cabo Colnett, Baja Calif. Janczewskia moriformis Setchell Setchell, 1914 Santa Monica, Calif. Janczewskia Solmsii Setchell & Guernsey Setchell, 1914; Setchell & Gardner, 1930; Dawson, 1945B Redondo to San Diego, Calif. ; Is. Guadalupie, Baja Calif. 115 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Digenia SIMPLEX (Wulfen) C. Agardh Dawson, 1944; Taylor, 1945 Gulf of Calif, to Costa Rica Bryothamnion pacificum Taylor Taylor, 1945 Is. Maria Magdalena, Nayarit Rhodomela larix (Turner) C. Agardh Smith, 1944 Bering Sea to San Luis Obispo Co., Calif. Rhodomela lycopodioides (Linnaeus) C. Agardh Setchell & Gardner, 1903; Collins, 1913 Alaska to Vancouver, B. C. Odonthalia dentata (Linnaeus) Lyngbye Setchell & Gardner, 1903 Alaska to Victoria, B. C. Odonthalia floccosa (Esper) Falkenberg Smith, 1944 Puget Sound, Wash, to Santa Barbara, Calif. Odonthalia kamtschatica (Ruprecht) J. Agardh Kylin, 1925 Alaska to Puget Sound, Wash. Odonthalia Lyallii (Harvey) J. Agardh Kylin, 1925 Puget Sound, Wash. Odonthalia washingtoniensis Kylin Kylin, 1925 ; Sanborn & Doty, 1946 Victoria, B. C. to Coos Bay, Oregon Bostrychia Calliptera (Montagne) Montagne Taylor, 1945 Panama Bostrychia radicans Montagne Dawson, 1944 Guaymas, Sonora Bostrychia tenella J. Agardh Taylor, 1945 Golfo Dulce, Costa Rica 116 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 LITERATURE CITED Agardh, J. G. 1852. Species genera et ordines algarum, Vol. 2, Pt. 2, pp. 337-720. Lund. 1876. Species genera et ordines algarum. Vol. 3, Pt. 1. Epicrisis systematis floridearum. 724 pp. Lund. 1894. Analecta algologiea: observationes de speciebus minus cognitis earunique dispositione, Continuatio II. Actis Soc. Physiog, Lundensis, 30: 1-98. 1899. Analecta algologiea: observationes de speciebus minus cog- nitis earumque dispositione, Continuatio V. lUd., N. S. 10: 1-160. Collins, F. S. 1913. The marine algae of Vancouver Island. Bull. Vic- toria Memorial Museum, 1: 99-137. Connell, R. 1928. Notes on marine algae collected at Departure Bay, B. C. Can. Field Nat., 42(4) :99-100. Dawson, E. Y. 1941. A review of the genus Rhodymenia with descrip- tions of new species. Allan Hancock, Pacific Exped., 3: 123- 180. 13 pis. 1944. The marine algae of the Gulf of California. lUd., 3: 189-454 47 pis. 1944a. Some new Laurenciae from southern California. Madrono 7(8): 233-240. 3 pis. 1944b. A new parasitic red alga from southern California. Bull. Torrey Bot. Cluh, 77(6): 655-657. 1 pi. 1945. Notes on Pacific Coast marine algae, I. Bull. So. Calif. Acad. Sci., 43(3) : 95-101. 1 pi. 1945a. Some new and unreported sublittoral algae from Cerros Is- land,* Mexico. IMd., 43(3): 102-112. 3 pis. 1945b. An annotated list of the marine algae and marine grasses of San Diego County, California. Occas. Papers San Diego Soc. Nat. Hist., (7) : 1-87. 1945c. Notes on Pacific Coast marine algae, II. Bull So. Calif. Acad. Sci., 44(1) : 22-27. 2 pis. 1945d. Notes on Pacific Coast marine algae. III. Madrono. 8(3): 93-97. 1 pi. 1945e. Marine algae associated with upwelling along the northwest- ern coast of Baja California, Mexico., Bull. So. Calif. Acad. Sci., 44(2): 57-71. 3 pis. 1946 New and unreported marine algae from southern California and northwestern Mexico. Ibid., 44(3): 75-91. 20 figs. De Toni, G. B. 1897-1924. Sylloge algarum omnium hucusque cog- nitarum-. 4 (Sylloge Floridearum) (1): I-XX, I-LXI, 1-388 1897; (2): 387-776. 1900; (3) 775-1522. 1903; (4): 1523- 1973. 1905; 6 (Sylloge Floridearum) (5 Additimenta) : I-XI, 1-767. 1924. Patavii. De Toni, J. 1935. Noterelle di nomenclature algologiea. V. HAnti- thamnion tenuissimum Gardner 1927. Published by the author. Brescia. 1936. Noterelle di nomenclature algologiea, VII. Primo eleneo di Floridee omonime. Published by the author. Brescia. Feldmann, J. et G. 1942. Recherches sur les Bonnemaisoniac6es et leur alternance de generations. Ann. des Sci. Nat., Bot., ser. 11, 3: 75-175. 26 figs. •According to Mexican authorities the spelling should be “Cedros.” 117 Memoiks, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Feldmann-Mazoyer, G. 1942. A propos de quelques Spermothamnion a polysporanges. Bull. Soc. d’Hist. Nat. de VAfriQue Nord, 33: 15-18. Foslie, M. H. 1929. Contributions to a monograph of the Liihothamnia. 60 pp. 75 pis. Trondhjem. Gardner N. L. 1926. New Rhodophyceae from the Pacific Coast of North America. l.Univ. Calif. Publ. Bot., 13: 205-226. 7 pis. 1927. New Rhodophyceae from the Pacific Coast of North America. II. Ibid., 13:235-272. 12 pis. 1927a. New Rhodophyceae from the Pacific Coast of North America. III. Ibid., 13:333-368. 13 pis. 1927b. New Rhodophyceae from the Pacific Coast of North America. IV. Ibid., 13:373-402. 11 pis. 1927c. New Rhodophyceae from the Pacific Coast of North America. V. Ibid., 13:403-434. 10 pis. 1927d. New Rhodophyceae from the Pacific Coast of North America. VI. Ibid., 14:99-138. 17 pis. 1927e. New species of Gelidium on the Pacific Coast of North Amer- ica. Ibid., 13:273-318. 19 pis. 1940. New species of Meianophyceae from the Pacific Coast of North America. Ibid., 19:267-286. 6 pis. Harvey, W. H. 1853. Nereis Boreali-Americana. Part II. Rhodospermae. Smithsonian Contr. to Knowledge, 3(5): 1-258. 24 pis. Hollenberg G. J. 1940. New marine algae from southern California. I. Amer. Journ. Bot., 27 (JO) : 868-877. 17 figs. 1941. Culture studies of marine algae. II. Hapterophycus canalicu- latus S. & G. Ibid., 28(8) :676-683. 16 figs. 1942. Phycological notes — I. Bull. Torrey Bot. Club, 69: 528-538. 15 figs. ]y42a. An account of the species of Polysiphonia on the Pacific Coast of North America. I. Oligosiphonia. Amer. Journ. Bot., 29:772-785. 21 figs. 1943. New marine algae from southern California. II. Ibid., 30:- 571-579. 16 figs. 1944. An account of the species of Polysiphonia on the Pacific Coast of North America. II. Polysiphonia. Ibid., 31:474-483. 12 figs. 1945. New marine algae from southern California. HI. Ibid., 32:- 447-451. 9 figs. Jao, C. 1937. New marine algae from Washington. Pap. Mich. Acad. Sci., Arts and Letters, 22:99-116. 3 pis. Kylin, H. 1924. Studien fiber die Delesseriaceen. Lunds Univ. Arsskr., N. F., 20(6) : 1-111. 80 figs. 1925 The marine algae in the vicinity of the biological station at Friday Harbor, Wash. Ibid., 21(9):l-87. 47 figs. 1932. Die Florideenordnung Gigartinales. Ibid., 28(8): 1-88. 22 figs. 28 pis. 1935. Zur Nomenclature einigen Delesseriaceen. Forhandl. Kgl. Fysiografiska Sdllsk. i Lund, 5(23): 1-5. 1940. Die Phaeophyceenordnung Chordariales. Lunds Univ. Arsskr.. V. F., 36(9) : 1-67. 30 figs. 8 pis. 1941. Californische Rhodophyceen. Ibid., 37(2): 1-51. 7 figs. 13 pis. Lemoine, Mme. P. 1929. Les Corallinac6es de I’Archipel des Galapagos et du Golfe de Panama. Arch, du Mus. d'Hist. Nat. VI, 4: 37-88. 35 figs., 4 pis. 118 Me^hoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 1946 Levring, T. 1940. Die Phaeophyceengattungen Chlanidophora, Dis- tromium und Syringoderma. Kgl. Fysiografiska Sdllsk. i Lund, 10(20): 1-11. Manza, A. V. 1937. Some north Pacific species of articulated corallines. Proc. Nat. Acad. Sci. of U. S. A., 23:561-567. 1940. A revision of the genera of articulated corallines. Philippine Journ. 8ci., 71:239-316. 20 pis. Papenfuss, G. 1943. Notes on algal nomenclature. III. Miscellaneous species of Chlorophyceae, Phaeophyceae and Rhodophyceae. Farlowia, l(3):337-346. 1944. Structure and taxonomy of Taenioma, including a discussion on the phylogeny of the Ceramiales. Madrono, 7 (7) : 193-214. 2 pis. 1 fig. 1944a. Marine algae of the Monterey Peninsula. A review. Ibid., 7(7) :226-231. 1945. Review of the Acrochaetium-Rhodochorton complex of the red algae. Univ. Calif. Publ. Bot., 18(14) :299-334. Sanborn, E. I. and M. S'. Doty. 1946. The marine algae of the Coos Bay- Cape Arago Region. Oregon State Monographs. Studies in Botany (7): in press. Saunders, De A. 1901. The algae. Papers from the Harriman Alaska Exped. XXV. Proceed. Wash. Acad. Sci. 3:391-486. 20 pis. Schmidt, 0. C. 1935. Pringsheimia Reinke jetzt Pringsheimiella v. Hoehn. Hedwigia, 74:29. Setchell, W. A. 1906. A revision of the genus Constantinea. Nuova Notarisia, 17:162-173. 1912. Algae novae et minus cognitae. Univ. Calif. Publ. Bot., 4:229- 268. 7 pis. 1914. Parasitic Florideae. I. Ibid., 6:1-34. 6 pis. 1914a. The Scinaia assemblage. Ibid., 6:79-152. 7 pis. 1923. Parasitic Florideae. II. Ibid., 10:393-396. 1923a. A revision of the west North American species of Callophyllis. Ibid., 10:397-401. 1933. Some early algal confusions. II. Ibid., 17:187-254. 20 pis. 1937. Report on the S'argassums. The Templeton Crocker Expedi- tion of the California Acadamy of Sciences, 1932, no. 34. Proc. Calif. Acad. Sci. iv, 22(5): 127-158. 6 pis. 1940. Fucus cordatus Turner. Proceed. Nat. Acad. Sci. of U. S. A., 26(11) : 643-651. 2 figs. Setchell, W. A. and E. Y. Dawson. 1941. Binghamia, the alga, vs. Bing- hamia, the cactus. Proc. Nat. Acad. Sci. of U. S. A., 27(8) :376- 381. 1 pi. Setchell, W. A. and N. L. Gardner. 1903. Algae of Northwestern Amer- ica. Univ. Calif. Publ. Bot. 1:165-418. 21 pis. 1920. The marine algae of the Pacific Coast of North America. Part 2, Chlorophyceae. Ibid., 8:139-381. 25 pis. 1924. The marine algae. Expedition of the California Academy of Sciences to the Gulf of California in 1921. Proc. Calif. Acad. ..Sci. iv, 12:695-949. 77 pis. 1925. The marine algae of the Pacific Coast of North America, Part 3, Melanophyceae. Univ. Calif. Publ. Bot., 8:383-898. 20 pis. 1930. Marine algae of the Revillagigedo Islands Expedition of 1925. Proc. Calif. Acad. Sci, iv, 19:109-215. 15 pis. 119 Memoirs, So. Calif. Academy of Sciences Vol. 3, Part 1, 194t) 1933. A preliminary survey of Gigartina, with special reference to its Pacific North American species. Univ. Calif. PuM. Bot., 17:255-340. 20 pis. 1937. Iridophycus in the northern hemisphere. Proc. Nat. Acad, of Sci. of U. S. A., 23:169-174. 1937a. A preliminary report on the algae. The Templeton Crocker Expedition of the California Academy of Sciences, iv. 21:65- 98. 1 fig. 23 pis. Setchell, W. A. and L. R. Mason. 1943. New or little-known crustose corallines of Pacific North America. Proc. Nat. Acad, of Sci. of U. S. A., 29:92-97. 1943a. Goniolithon and Neogoniolithon: two genera of crustaceous coralline algae. Ihid., 29:87-92. Smith, G. M. 1944. Marine algae of the Monterey Peninsula, California. ix4-622 pp., 98 pis. Stanford Univ. Taylor, W. R. 1939. Algae collected on the Presidential cruise of 1938. Smithsonian Contr. Knowl., Miscell. Ser. 98(9):1-18. 2 pis. 14 figs. 1945. Pacific marine algae of the Allan Hancock Expeditions to the Galapagos Islands. Allan Hancock Pac. Exped. 12:1-528. 100 pis. 3 figs. Yendo, K. 1902. Corallinae verae of Port Renfew. Minnesota Bot. Stud. 2(40) : 711-720. 6 pis. Zeh, W. 1912. Neue Arten der Gattung Liagora. Berlin Notizhl. bot. Garten, 5(49) : 268-273. 120 INDEX Synonyms are in italics PAGE Acetabularia parvula 15 V. americana 15 Acrochaetium Amphiroae 52 angustnm 52 Bornetii 52 coccineum 52 Daviesii 52 densum 52 Desmarestiae 52 Dictyotae 52 Eastwoodae 53 elegans 53 Erythrophyllum 53 Gymnogongri 53 Hancockii 53 Macounii 53 magnificum 53 obscurum 53 pacifieum 53 penetrale 53 plumosum 53 rhizoideum 53 V. patens 53 simplex 54 sinicolum 54 subimmersum 54 tenuissimum 54 Thurettii V. agama 54 vagum 54 variabile 54 Acrosorium uncinatum 105 Aegira virescens 32 Aeodes Gardneri 73 Agardhiella Couiteri 79 mexicana 79 tenera 79 Agarum cribrosum 40 fimbriatum 41 Ahnfeltia gigartinoides 84 plicata 84 Alaria dolichorhachis 42 fistulosa 42 f. platyphylla 42 f. stenophylla 42 lanceolata 42 marginata 42 nana 42 Pylaii 42 PAGE tenuifolia 42 f. typica 42 f. amplior 42 valida 42 f. longipes 42 Amphiroa annulata 70 compressa V. tenuis 70 Crosslandii 70 dimorpha 70 foliacea 71 fragilissima 71 franciscana 71 mexicana 7i minutissima 71 peninsularis 71 polymorpha 71 pusilla 71 rigida 71 zonata 71 Amplisiphonia pacifica 112 Anisocladella pacifica 104 Antithamnion alternans 94 asymmetricum 94 Baylesiae 94 defectum 94 dendroideum 94 densiusculum 94 fioccosum 94 Gardneri 94 glanduliferum 94 Kylinii 94 nigricans 94 occidentale 94 pacifieum 94 pulchellum 95 pygmaeum 95 secundatum 95 setaceum 95 simulans 95 sublittorale 95 subulatum 95 tenuissimum 94 uncinatum 95 Archeolithothamnium Howei 64 Arthrothamnus bifidus 41 Asparagopsis hamifera 58 Sanfordiana 58 f. amplissima 58 taxiformis 58 121 PAGE Asymmetria expansa 63 Audouinella membranaceum 55 Bangia fuscopurpurea 50 maxima 50 tenuis 50 vermicularis 50 Baylesia plumosa 61 Besa papillaeformis 89 Binghamiella californica 92 Forkii 92 Blossevillea Brandegeei 47 Bonnemaisonia californica 57 geniculata 57 hamifera 58 Boodlea composita 15 Bossea angustata 69 californica 69 corymbifera 69 dichotoma 69 frondifera 69 Gardneri 69 interrupta 70 Orbigniana 70 pachyclada 70 plumosa 70 Bostrychia Calliptera 116 radicans 116 tenella 116 Botryocladia Hancockii 90 pseudodichotoma 90 V. datilensis 90 uvarioides 90 Botryoglossum Farlowianum 106 Branchioglossum Woodii 102 Brogniartella mucronata Ill Bryocladia dictyurus 110 Bryopsis corticulans 16 galapagensis 16 hypnoides 16 pennatula 16 plumosa 16 V. pennata 16 Bryothamnion paciflcum 116 Bulbocoleon piliferem 4 Calllarthron cheilosporioides 71 pinnulatum 71 PAGE regenerans 71 Schmittii 72 Setcbelliae 72 Callithamnion acutum 96 arborescens 96 biseriatum 96 bisporum 96 breviramosum 96 byssoides 96 californicum 96 endovaginum 96 laxum 96 paciflcum 96 Pikeanum 96 V. paciflcum 96 ramosissimum 97 rupicolum 97 soccoriense 97 squarrulosum 97 veleroae 97 Callocolax fungiformis 78 globulosis . . . ; 78 neglectus 78 Callophyllis acrocarpa 76 crassifolia 76 crenulata 76 dissecta 76 edentata 76 fllicina 77 flabellulata 77 Gardneri 77 heanophylla 77 Jobnstonii 77 marginifructa 77 megalocarpa 77 obtusifolia 77 odontbalioides 77 pinnata 77 plumosa 77 stenophylla 77 Tbompsonii 77 violacea 78 Caulerpa peltata 17 pinnata f. pectinata 17 racemosa V. chemnitzia 17 V. clavifera f. macrophysa 17 racemosa V. laeteirens f. cylindraceae 18 • f. typica 18 V. occidentalis 18 V. uvifera 18 sertularioides 18 Vanbosseae 18 Centroceras bellum 101 clavulatum 101 Ceramium affine 99 californicum 99 Camouii 99 122 PAGE Ceramium caudatum 99 clarionensis 99 codicola 99 codiophila 99 Eatonianum 99 equisetoides 99 Evermannii 99 fastigiatum 99 fimbriatum 99 Gardner! 100 gracillimum 100 horridum 100 ornatum 100 pacificum 100 paniculatum 100 personatum 100 procumbens 100 rubrum 100 serpens 100 sinicola 100 V. interruptum 100 V. Johnstonii 101 strictum 101 washingtoniense 101 zacae 101 zebrinum 101 Chaetomorpha aerea 11 antennina 11 californica 11 cannabina 11 clavata 11 crassa 11 melangonium 12 tenuissima 12 torta 12 Champia oaespitosa 93 disticha 93 parvula 93 Chlanidophora ahyssicola 29 Chlorochytrium inclusum 15 Porphyrae 15 Schmitzii 16 Chlorodesmis comosa 19 mexicana 19 Chnoospora pacifica 38 pannosa 38 Chondria acrorhizophora 113 arcuata 113 californica 113 clarionensis 113 cuscutoides 113 dasyphylla 113 decipiens 113 nidifica 113 oppositiclada 113 pacifica 113 platyclada 113 secundata 113 telmoensls 113 PAGE Chondus crispus 85 Chorda Filum 39 Chordaria dissessa 33 flagelliformis 33 gracilis 33 Choreocolax Polysiphoniae 78 Choreonema Thureti 64 Chromastrum arcuatum 54 hirsutum 54 implicatum 54 microscopicum 54 moniliforme 54 Porphyrae 55 Cladophora albida 12 amphibia 12 Bertolonii V. hamosa 12 delicatula 12 flexuosa 12 glaucescens 12 graciljs 12 f. expansa 12 graminea 12 hemisphaerica 12 hesperia 13 Hutchinsiae ] 3 V, distans 13 laetevirens 13 MacDoiigalii 13 inicrocladioides 13 f. stricta 13 ovoidea 13 panamensis 13 prolifera , 13 Rudolphiana 13 f. eramosa 13 Stimpsonii 13 tiburonensis 13 trichotoma 14 f. elongata 14 Cla,dophoropsis robusta 15 Clarionea Masonii 78 Clathromorphum compactum f. circumscriptum 65 Codiolum gregarium 16 Petrocelidis 16 pusillum f. subsessile 16 Codium amplivesiculatum 18 anastomosans 18 conjunctum 18 cuneatum 18 decorticatum 18 fernandezianum 19 fragile 19 isabelae 19 123 PAGE Codium longiramosum 19 Macdougalii 19 Palmeri 19 Setcheilii 19 simulans 19 Ritteri 19 Coeloseira compressa 93 parva 93 Coilodesme bulligera 37 californica 37 corrugata 37 Cystoseirae 37 polygnampta 38 rigida 38 sitchensis 38 Collinsiella tuberculata 3 Colpomenia ramosa 37 sinuosa 37 f. deformans 37 f. expansa 37 f. tuberculata 37 Compsonema coniferum 31 dubium 31 fasciculatum 31 fructuosum 31 immixtum 31 intricatum 32 myrionematoides 32 nummuloides 32 pusillum 32 ramulosum 32 secundum 32 serpens 32 sessile 32 speciosum f. piliferum 32 sporangiiferum 32 streblonematoides 32 tenue 32 Conchocelis rosea 55 Constantinea rosa marina 62 simplex 62 subulifera 62 Corallina chilensis 68 cubensis 68 gracilis 68 V. densa 68 V. lycopodioides 69 ofjicinalis f. pilulifera 69 pilulifera 69 subulata 69 vancouveriensis 69 Corallopsis salicornia 81 Costaria costata 40 Crouania attenuata 97 PAGE Cruoriella Dubyi 63 Cryptonemia borealis 73 decolor ata 73 obovata 73 ovalifolia 73 Cryptopleura brevis 105 corallinara 106 crispa 106 dichotoma 106 lobulifera 106 Ruprechtiana 106 spatulata 106 violacea 106 Cryptosiphonia Woodii 60 Cumagloia Andersonii 56 Cutleria Hancockii 27 Cyamathere triplicata 40 Cystophyllum geminatum 47 Cystoseira neglecta 47 osmUndacea 47 Setcbellii 47 Dasya californica 106 Eastwoodae 106 pedicellata 106 Stanfordiana 107 Dasyopsis densa 107 plumosa 107 Delesseria decipiens 103 Derbesia Lamourouxii 17 marina 17 pacifica 17 vaucheriaeformis 17 Dermatolithon saxicolum 66 veleroae 66 Dermocorynus occidentalis 72 Desmarestia farcta 33 filamentosa 34 foliacea 34 • herbacea 34 intermedia 34 Jordanii 34 latifrons 34 latissima 34 ligulata 34 linearis 34 media 34 V. tenuis 34 mexicana 34 munda 34 pacifica 35 viridis 35 424 PAGE Dicranema rosaliae 83 Dictyoneuropsis reticulata 41 Dictyoneurum californicum 41 Dictyopteris delicatula 28 Johnstonei 29 zonarioides 29 Dictyosiphon foeniculaceus 38 hippuroides 38 hispidus 39 sinicola 39 tenuis 39 Dictyosphaeria australis 14 Versluysi 15 Dictyota Binghamiae 28 concrescens 28 crenulata 28 cribrosa 28 divaricata 28 flabellata 28 besperia 28 Johnstonii 28 Masonii 28 Vivesii 28 Digenia simplex 116 Dllsea californica 61 Dumontia filiformis 61 Dunaliella sialina 3 Ectocarpus acuminatus 20 acutus 20 / affinis 20 breviarticulatus 20 Bryantii 20 chantransioides 20 chitonicola 21 commensalis 21 confervoides 21 f. parvus 21 f. pygmaeus 21 f. typicus 21 f. variaMlis 24 corticulatus 21 cylindricus 21 f. codiophilus 21 Duchassaingianus 21 ellipticus 21 ensenadanus 21 eramosus 21 flagelliferus 22 flocculiformis 22 fructuosus 22 globifer 22 gonodioides 22 granulosoldes 22 y. pygmaeus 22 granulosus 22 PAGE Hancockii 22 hemisphericus 22 f. minor 22 isopodicola 22 luteolus 22 Mesogloiae 23 Mitchellae 23 mucronatus 23 oviger 23 Parksii 23 Saundersii 23 siliculosus 23 f. subulatus 23 simulans 23 socialis 23 sonorensis 23 Taoniae 23 terminalis 23 tomentosus 24 variabilis 24 Egregia laevigata 43 Menziesii 43 Eisenia arborea 42 desmarestioides 43 Masonii 43 Elachistea fucicola 26 lubrica 26 Endarachne Binghamiae 36 Endocladia murioata 62 Endophyton ramosum 5 Enteromorpha acanthophora 7 clathrata 7 crinita 7 compressa 7 erecta 7 flexuosa 7 groenlandica 7 intestinalis 7 f. clavata 8 f. cylindracea 7 f. maxima 7 lingulata 8 marginata 8 micrococca 8 f. subsalsa 8 minima 8 plumosa 8 prolifera 8 salina V. polyclados 8 torta 8 tubulosa 8 Entocladia cingens 4 codicola 4 condensata 4 mexicana 5 Polysiphoniae 5 viridis 5 125 PAGE Erythrocladia irregularis 60 subintegra 60 Erythroglossum californicum 103 divaricata 103 intermedium 103 Erythropeltis discigera 49 Erythrophyllum delesserioides 89 Erythrotrichia californica 49 carnea 49 ceramicola 49 Kylinii 49 Parksii 49 V. minor 49 polymorpha 60 porphyroides 50 pulvinata 50 tetraseriata 50 Welwitschii 50 Estebania conjuncta 73 Eucheuma uncinatum 79 Butbora cristata 81 fruticulosa 81 Falkenbergia Hillebrandtii Ill Farlowia compressa 61 crassa 61 mollis 61 Fauchea crispa 89 Fryeana 89 laciniata 89 media 90 mollis 90 pygmaea 90 Sefferi 90 Faucheocolax attenuata 90 Fosliella ascripticla 66 dispar 66 intermedia 66 minuta 66 Nlcholsii 66 paschalis • 66 Fryella Gardneri 90 Fucus edentatus 43 f. acutus 43 f. costatus 43 f. divaricatus 43 f. dlvergens 43 f. hesperius 43 evanescens 43 f. cornutus 43 f. cuneatus 44 f. dendroldes 44 f. ecostatus 44 PAGE f. flabellatus 44 f. longifructus 44 f. macrocephalus 44 f. magnificus 44 f. marginatus 44 f. nanus 44 f. oregonensis 44 f. pergrandis 44 f. robustus 44 f. rudis 44 f. stellatus 44 f. typicus 45 furcatus 45 f. abbreviatus 45 f. angustus 45 f. contortus 45 f. cornutus 45 f. elongatus 45 f. latifrons 45 f. linearis 45 f. luxurians 45 f. nigricans 45 f. reflexus 45 f. rigidus 45 f. typicus 46 f. variabilis 46 membranaceus f. abbreviatus 46 f. acuminatus 46 f. latissimus 46 f. limitatus 46 f. obtusus 46 f. typicus 46 nitens 46 Parksii 46 Galaxaura fastigiata filamentosa . . . . marginata . . . . oblongata ramulosa squalida stupocaulon . . . subfruticulosa . ventricosa . . . . veprecula .... Gardneriella tubifera Gastroclonium clavatum Coulteri Gayella constricta .... polyrhiza .... Gelidiella acerosa Hancockii .... mexicana .... refugiensis . . . Gelidiocolax microsphaerica Gelidiopsis tenuis variabilis Gelidium arborescens . . caloglossoides 57 57 57 57 57 57 57 57 57 57 79 93 93 10 10 60 60 60 60 60 60 60 58 58 126 PAGE Gelitlium cartilagineum 58 V. robustum 58 Coulteri 58 crinale 58 V. luxurians 58 decompositum 58 densum 59 Johnstonii 59 microphysa 59 nudifrons 59 polystichum 59 pulchrum 59 purpurascens 59 pusillum 59 ramuliferum 59 sclerophyllum 59 Setchellii 59 sinicola 59 Gigartina Agardhii 85 armata 85 asperifolia 85 Binghamiae 85 Boryi 85 californica 85 canaliculata 85 corymbifera 85 cristata 85 dichotoma 86 Eatoniana 86 echinata 86 exasperata 86 Harveyana 86 Jardinii 86 Johnstonii 86 latissima 86 leptorhynchos 86 Macdougalii 86 mamillosa 86 multidichotoma 86 obovata 86 papillata 87 pectinata 87 serrata 87 sitchensis 87 spinosa 87 stellata 87 tepida 87 Turneri 87 unalaschensis 87 Gloiopeltis furcata 62 miniata 62 Gloiophloea confusa 56 Gloiosiphonia californica 62 capillaris 62 verticillaris 62 Gomontia polyrhiza 6 Gonimophyllum Skottsbergii 106 Goniotrichopsis sublittoralis 49 Goniotrichum AJsidii 49 PAGE cornu-cervi 49 elegans 49 Gonodia Johnstonii 26 Marchantae 26 Gracilaria Andersonii 81 cerrosiana 81 compressa 81 confervoides 82 crispata 82 guaymasensis 82 Hancockii 82 Johnstonii 82 lacerata 82 lichenoides 82 linearis 82 pachydermatica 82 panamensis 82 pinnata 82 robusta 82 Sjoestedtii 83 subsecundata 83 tenuifolia 83 veleroae 83 Vivesii 83 Gracilariophila Gardneri 83 oryzoides 83 Grateloupia abreviata 72 acroidalea 72 californica 72 cerrosiana 72 filicina 72 Hancockii 72 Howeii 72 Johnstonii 72 maxima 73 pinnata 73 prolongata 73 Setchellii 73 squarrulosa 73 Grifflthsia multiramosa 98 V. balboensis 98 V. minor 98 pacifica 98 Schoesboei 98 tenuis 98 Grinnellia lanceolata 104 Gymnogongrus carnosus 84 divaricatus 84 Hancockii 84 leptophyllus 84 linearis 84 martinensis 84 norvegicus 84 platyphyllus 84 sinicola 84 Gymnothamnion elegans 97 Halicystis oval is 16 127 PAGE Halidrj'^s dioica 47 Halimeda discoidea 19 opuntia 19 tuna 19 Haloplegma mexicanum 97 Halorhipis Winstonii 35 Halosaccion glandiforme 90 ramentaceum 91 Tilesii 91 Halothrix lumbricaiis 26 Halymenia abyssicola 74 actinophysa 74 Agardhii 74 californica 74 refugiensis 74 Hapalospongidion gelatinosum 26 Haplogloia Andersonii 33 Kuckuckii 33 Hapterophycus canaliculatus 26 Hedophyllum sessile 41 subsessile 41 Helminthocladia californica 55 gracilis 55 Helminthora Saundersii 55 stricta 55 Herposiphonia grandis 112 parva 112 pygmaea 112 rigida 112 V. laxa 112 secunda 112 subdisticha 112 tenella 112 verticillata 112 Hesperophycus Harveyanus 47 Heterochordaria abietina 33 Heteroderma corallinicola 66 Gibbsii 66 Heteronema "boreale 104 Heterosiphonia asymmetria 107 densiuscula 107 erecta 107 laxa 107 sinicola 107 Hildenbrandia occidentalls 63 prototypus 63 rosea 63 PAGE Holmesia californica 103 Hormiscia doliifera H grandis H penicilliformis 11 spbaerulifera 11 tetraciliata H vancouveriana H Wormskioldii 11 Hydroclathrus clathratus 37 Hydrolithon Setcbellii 65 Hymenena flabelligera . . . . : 105 Kylinii 105 multiloba 105 Setchellii 105 Smitbii 105 Hypnea adunca 80 californica 8C Esperi 80 Evermanii 80 Johnstonii 80 nidifica 80 nidulans 80 pannosa 80 spinella 80 variabilis 80 Hypoglossum abyssicolum 102 attenuatum 102 retusum 102 Ilea Fascia 36 f. caespitosa 36 f. debilis 36 f. typica 36 f. zosterifolia 36 Internoretia Freyeana 5 Iridea californica 88 Iridophycus californicum 88 cordatum 88 coriaceum 88 flaccidum 88 fulgens 88 furcatum 88 heterocarpum 88 lineare 88 Parksil 88 parvulum 88 Reediae 89 sanguineum 89 sinicola 89 splendens 89 whidbeyanum 89 Ishige foliacea 38 Janczewskia Gardner! 115 lappacea 115 128 PAGE PAGE Janczewskia moriformis . , . . Solmsii Jania adhaerens capillacea mexicana rubens Jantinella sinicola verrucaeformis . Joculator pinnatifolius . . . Kallymenia angustata guaymasensis . . oblongifructa . . . ornata pertusa reniformis f. cuneata tenuifolia veleroae Laminaria Andersonii . . , . , complanata .... cuneifolia f. amplissima . f. angusta .... f. subsimplex . dentigera ephemera Farlowii longipes personata platymeris saccharina f. linearis . . . . , f. membranacea Sinclairii Laurencia clarionensis crispa diegoensis estebaniana Gardneri Hancockii humilis intricata Johnstonii Masonii obtusiuscula paciflca paniculata papillosa V. pacifica peninsularis scrippsensis sinicola Snyderae spectabilis splendens subopposita voragina Leathesia difformis 30 nana 30 Leptocladia Binghamiae 61 conferta 61 laxa 61 Leptofauchea pacifica 90 Lessoniopsis littoralis 41 Liagora californica 56 ceranoides 56 valida 56 Lithoderma fatiscens 26 Litholepis accola 66 fertilis 66 sonorensis 66 Lithophyllum bracchiatum 67 coibense 67 decipiens 67 Digueti 67 divaricatum 67 elegans 68 fetum 67 grumosum 67 Hancockii 67 imitans 67 lithophylloides 67 lividum 68 Margaritae 68 muricatum 65 neofarlowii 68 pallescens 68 proboscidum 68 propinquum V. cocosica 68 trichotomum 68 veleroae 68 whidbeyense 68 Lithoporella pacifica 66 Lithothamnium aculeiferum 64 australe f. americana 64 f. minutula 64 f. tualensis 64 californicum 64 conchatum 64 crassiusculum 65 giganteum 65 indicum 65 lamellatum 65 montereyicum 65 muricatum 65 pacificum 65 parcum 65 phymatodeum 65 reclinatum 65 valldum 65 Lithothrix aspergillum 69 .115 .115 . 70 . 70 . 70 . 70 .112 .112 . 69 . 75 . 75 . 75 . 75 . 75 . 76 . 76 . 76 . 76 . 39 . 39 . 39 . 39 . 39 . 39 . 39 . 40 . 40 . 40 . 40 . 40 . 40 . 40 , 40 . 40 ,113 ,114 ,114 114 114 114 114 114 114 114 114 114 114 114 115 115 115 115 115 115 115 115 129 PAGE Lobocolax deformans 75 Lola lubrica lb Lomentaria Baileyana 92 Caseae 92 catenata 93 Drouetii 93 hakodatensis 93 Lopbosiphonia mexicana 110 obscura 110 villum 110 Macrocystis integrifolia 41 pyrifera 41 Masonophycus paradoxa 27 Melobesia marginata 64 mediocris 64 Membranoptera denticulata 102 dimorpha 102 multiramosa 102 platyphylla 103 Setchellii 103 tenuis 103 Weeksiae 103 Meredithia californica 76 Mesophyllum australe V. viemitula 64 V. tiialensis 64 Microcladia borealis 101 californica 101 Coulteri 101 Microdictyon Palmeri 14 Monostroma areolatum 6 fractum 6 fuscum 6 V. splendens 6 V. Blyttii 6 Grevillei 6 V. lubricum 6 V. Vahlii 6 latissimum 6 orbiculatum 7 quaternarium 7 zostericola 7 Myelophycus intestinale 36 f. tenue 36 Myriogramme divaricata 104 Hollenbergli 105 pulchra 105 repens 105 spectabilis 105 Myrlonema attenuatum 30 PAGE balticum f. californicum 30 f. pedicellatum 30 compsonematoides 30 corunnae f. angulatum 30 f. sterile 30 f. uniforme 30 foecundum f. ramulosum f. simplicissimum 31 f. subulatum 31 globosum f. affine 31 minutissimum 31 obscurum 31 phyllophyllum 31 primarium 31 setiferum 31 strangulans 31 Nemacystus Brandegeei 33 Nemalion elminthoides 55 lubricuvi 55 Virens 55 NeogonioUthon trichotomum 68 Neomeris Vanbosseae 15 Nereocystis Luetkeana 41 Is! eurocarpus delicatula. 28 zonarioides 29 Nienburgia Andersoniana 104 borealis 104 Nitopbyllum mirabile 105 Odonthalia dentata 116 floccosa 116 kamtscbatica 116 Lyallii 116 washingtoniensis 116 Opuntiella californica 79 Orcasia senticulosa 107 Ostreobium Quekettii 17 Reineckei 17 Pachyarthron cretaceum 69 Padina Durvillaei 29 caulescens 29 crispata 29 mexicana 29 tetrastromatica 29 Pantoneura Baerii 105 Juergensii 105 130 PAGE Pelagophycus porra 41 Pelvetia fastigiata 46 f. gracilis 46 Pelvetiopsis arborescens 47 limitata 47 f. lata 47 f. typioa 47 Percursaria percursa 9 Petrocelis franciscana 63 haematis 64 MiddendorfRi 64 Petroglossum pacificum 84 parvum 84 Petrospongium rugosum 30 Peyssonnelia calcea 63 clarionensis 63 pacifica 63 rubra 63 Phaeophilia dendroides 4 Engleri 4 polymorpba 4 Pbaeostrophion irregulars 38 Pbycodrys ambigua 104 bullata 104 Riggii 104 Setchellii 104 Phyllophora californica 83 Clevelandii 83 Pikea californica 61 pinnata 61 Pilinia Lunatiae f. simplex 4 maritima f. pacifica 4 Platymonas subcordiformis 3 Platysiphonia Clevelandii 103 Platythamnion heteromorphum 95 pectinatum 95 V. laxum 95 reversum 95 tepocensis 95 villosum 95 Pleonosporium abysicola 97 dasyoides 97 polycarpum 97 pygmaeum 98 saccorhiza 98 squarrosum 98 V. obovatum 98 vancouverianum 98 PAGE Pleurophycus Gardneri 40 Plocamiocolax pulvinata 81 Plocamium pacificum 81 tenue 81 violaceum 81 Pocockiella variegata 29 Pogonopbora californica 107 Polycoryne Gardneri 104 phycodricola 104 Polyneura latissima 104 Polyneurella Hancockii 104 Polyopes Biisbiae 73 clarionensis 73 sinicola 74 Polysipbonia acuminata 107 bifurcata 107 Brodiaei 108 californica 110 Collinsii 108 V. compacta 108 V. deliquescens 108 V. luxurians 108 concinna 108 decussata 108 dicbotoma 108 Eastwoodae 108 fiaccidissima 108 V. Smitbii 108 guadalupensis 108 Hancockii 108 Hendryi 109 homoia 109 Howei 109 inconspicua 109 Johnstonii 109 Macounii 109 Marcbantae 109 Masonii 109 minutissima 109 pacifica 109 V. delicatula 109 V. determ inata 109 V. disticha 109 V. gracilis 110 paniculata 110 pungens 110 simplex 110 Snyderae 110 V. heteromorpha 110 v.intricata 110 sonorensis 110 Porolithon cocosicum 67 sonorensis 6T Porphyra abyssicola 60 amplissima 59 131 PAGE Porphyra laciniata 51 f. umbilicalis 51 lanceolate 51 miniata f. cuneiformis 51 naiadum 51 Nereocystis 51 occidentalis 51 perforata 51 f. segregata 51 pulchra 51 schizophylla 51 Thuretii 51 tenuissima 51 umbilicalis 51 variegata 52 Porphyrella californica 52 Gardneri 52 Porphyropsis coccinea 52 Postelsia palmaeformis 41 Prasinocladus lubricus 3 Prasiola borealis 10 calopbylla 10 Predaea Masonii 78 Pringsheimia Marchantae 5 Pringsheimiella Marchantae 5 Prionitis ahbreviata 74 Andersoniana 74 australis 74 filiformis 74 V. delicatula 74 guaymasensis 74 kinoensis 75 lanceolata 75 linearis 75 Lyallii 75 mexicana 75 Sternhergii 75 Pseudodictyon geniculatum 5 Pseudopringsheimia apiculata 5 Pseudoscinaia Snyderae 56 Pseudoulvella prostrata 5 Pteridium spinulosum 102 Pterochondria pygmaea 112 Woodii 112 Pterocladla mexicana 59 Pterosiphonia arctica Ill Baileyi Ill bipinnata Ill californica Ill PAGE dendroidea Ill gracilis Ill pennata Ill robusta Ill V. divaricata Ill V. inermis Ill Pterygophora californica 41 Ptilota asplenioides 101 californica 101 densa 101 filicina 102 hypnoides 102 pectinata 102 tenuis 102 Pugetia firma 76 fragilissima 76 Punctaria chartacea 35 expansa 35 hesperia 35 latifolia 35 lobata 35 occidentalis 35 orbiculata 35 plantaginea 35 Pylaiella Gardneri 20 littoralis 20 tenella 20 unilateralis 20 washingtonensis 20 Ralfsia californica 25 clavata 25 fungiformis 25 Hancockii 25 hesperia 25 occidentalis 25 pacifica 26 Rhizoclonium implexum 10 Kerneri 10 lubricum 10 riparium 10 tortuosum 10 Rhodochorton Amphiroae 52 arcuatum 54 concrescens 55 microscopicum 54 penicilliforme 55 purpureum 55 tenue 55 Rhododermis elegans 63 Rhodoglossum affine 87 americanum 87 coriaceum 87 Hancock!*. 87 latissimum 88 parvum 88 roseum 88 132 PAGE PAGE Rhodomela larix lycopodioides 116 Rhodophyllis dichotoma f. setacea 81 Rhodosiphonia calif ornica 110 Rhodymenia arbor escens 91 attenuata 91 californica 91 Dawsonii i 91 divaricata 91 Hancockii 91 lobata 91 lobulifera 91 paciflca 91 palmata 91 f. mollis 91 f. sarniensls 92 palmettiformis 92 pertusa 92 rhizoides 92 rosea 92 stipitata 92 tepocensis 92 Rhodymeniocolax botryoidea 92 Ricardia saccata 115 Rosenvingea intricata 37 Sarcodiotheca cuneata 79 dichotoma 79 ecuadoreana 79 elongata 79 furcata 79 linearis 80 meridionalis 80 Sarcophyllis arctica 61 Sargassum acinacifolium 47 Agardhianum 47 asymmetricum 48 Brandegeei 48 Camouii 48 herporhizum 48 horridum 48 Howellii 48 Johnstonii 48 f. gracile 48 lapazeanum 48 LiebmannI 48 Macdougalii 48 Palmeri 48 sinicola 48 Saundersella simplex 33 Schizymenla epiphytica 78 Johnstonii 78 paciflca 78 Sciadophycus stellatus 90 Seinaia articulata 5G complanata 56 Johnstoniae 56 latifrons 56 minima Scytosiphon hullosus 37 ' lomentaria f. cylindricus 36 f. typica V. complanatus 36 S'iphonocladus pusilloides i5 Soranthera ulvoidea f. difformis 36 Sorella delicatula V. californica 103 divaricata pinnata Spermothamnion saccorhiza 98 Snyderae Sphacelaria brevicorne 26 californica didichotoma 26 furcigera 27 Hancockii 27 Masonii 27 mexicana 27 novae-hollandiae 27 racemosa 27 subfusca 27 Spongomorpha arcta coalita 14 duriuscula 14 hystrix 14 Mertensii 14 saxatilis 14 V. Chamissonis 14 spinescens 14 Sporochnus pedunculatus 33 Spyridia filamentosa 97 Stenogramme californica interrupta Stephanoptera gracilis O Stictyosiphon tortilis Streblonema aecidioides f. paciflcum an om alum codicola corymbiferum 24 Desmarestiae evagatum investiens irregulare 24 Johnstonae minutissium 21 133 PAGE Streblonema myrionematoides 24 pacificum 25 penetrale 25 Porpliyrae 25 rugosum 25 scabiosum 25 transfixum 25 vorax 25 Stromatocarpus Gardner! Ill Syringoderma abyssicola 29 Taonia Lennebackerae 29 Taenioma perpusillum 103 Thalassiophyllum clathrus 40 Thuretellopsis Peggiana 61 Trailliella intricata 93 Trentepoblia odorata 6 V. umbrina 6 Turnerella Mertensiana 79 Tylotus Cunninghamii 83 Ulothrix flacca 3 implexa 3 laetevirens 4 pseudoflacca f. minor 4 f. maxima 4 Ulva an gust a 8 oalifornica 8 dactylifera 9 expansa 9 fenestrata 9 Lactuca 9 latissima 9 PAGE Linza 9 lobata 9 rigida 9 stenophylla 9 taeniata 9 vexata 9 Ulvella Lens 6 Setchellii 5 Urospora peniciliformis H Valoniopsis Hancock!! 15 pachynema 15 Vaucheria litoria 17 Veleroa subulata HI Weeksia Fryeana 61 Howell!! 62 reticulata 62 Templeton!! 62 Whidbeyella cartilaginea 56 Wurdemannia miniata 60 Zanardinula abbreviata 74 Andersoniana 74 australis 74 filiformis 74 V. delicatula 74 guaymasensis 74 kinoensis 75 lanceolata 75 linearis 75 Lyalli! 75 mexicana 75 Sternberg!! 75 Zonaria Farlowi! 29 variegata 29 134 < fi ^ $ 9^- I ll 1