v England: Salicaceae to Brassicaceae. Phytoneuron 2011 Harvard University Herbaria 22 Divinity Avenue, Cambridge, MA 02138-2020 ABSTRACT Dot maps are provided to depict the distribution at the county level of the taxa of Magnoliophyta: Salicaceae to Brassicaceae (corresponding to Flora of North America, Volume 7 (Flora of North America Editorial Committee 20 10)) growing outside of cultivation in the six New England states of fee northeastern United States, The maps treat 205 taxa (species, subspecies, varieties, and hybrids, but not forms) based primarily on specimens in the major herbaria of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut, with most data derived from the holdings of the New England Botanical Club Herbarium (NEBC). Brief synonymy (to account for names used in standard manuals and floras for the area), habitat, chromosome information, and common names are also provided. KEY WORDS. Flora, New England, atlas, distribution, Brassicaceae, Capparaceae, Cieomaceae, Limnanthaceae, Resedaceae, Salicaceae, Tropaeolaceae This article is the eighth in a series (Angelo & Boufford 1996, 1998, 2000, 2007, 2010, 201 1, 20 12) that will present the distributions of the vascular flora of New England in the form of dot distribution maps at the county level (Fig. 1). The atlas is posted on the internet at http://neatias.org, where it will be updated as new information becomes available. This project encompasses all vascular plants (pteridophytes and spermatophytes) at the rank of species, subspecies, and variety growing independent of cultivation in the six New England states. Hybrids are also included, but forms and other ranis below the level of variety are not. The dots are based on voucher specimens primarily in New England herbaria (of colleges, universities, botanical gardens, and public museums) representing reproducing populations outside of cultivated habitats. This eighth installment includes the families in Magnoliophyta: Salicaceae to Brassicaceae corresponding to the families treated in Flora of North America, Volume 7 (Flora of North America Editorial Committee 2010). Of the 205 taxa treated, 109 are not native to the region - a surprising 53%. Future accounts will treat the distribution of additional non-monocot angiosperms. The habitat data are distillations from a variety of sources augmented by our own field observations. An attempt was made to indicate habitat information as it applies to a particular taxon in New England rather than to the entire range of the taxon. Such information is omitted where habitat is not indicated on the label and where we also lack personal knowledge of the plant in New England. All omissions of habitat information are for a few introduced taxa and for all hybrids. We plan to gather this series of articles, together with additional background material, into a separate volume upon completion of all the installments. It is our hope, in the meantime, that these articles will stimulate additional field work to supplement the distributions portrayed in the maps. d and Boufford: Atlas of the New England flora 2 The New England Botanical Club herbarium has proven to be the most important resource for mis project. We are eager to receive information on voucher specimens in public herbaria documenting range extensions and filling county gaps in distributions. Similarly, because the atlas of the New England flora will be continuously updated as new information becomes available, we are eager to receive notification of published corrections of cytological information and new, documented chromosome counts for taxa in the New England flora. MATERIALS AND METHODS Materials and methods are as outlined in Angelo and Boufford (1996) and at http://ne .-. . - • •- , and are not repeated here. . TAXONOMY AND FORMAT The taxonomy and nomenclature adopted for this work essentially follow that of the Flora of North America project t tA,pt that tannine uiua and sj u.ks lie iruintd alpha* (tK lib The families and their circumscription do not necessarily reflect current views on relationships or composition. The Angiosperm Phylogeny Website (Stevens 2001 onwards) should be consulted for a continuously updated treatment of families and their inclusive genera. Named and unnamed hybrid taxa are placed alphabetically at the end of the genus in which they occur. Unnamed hybrids combine the names of the progenitors alphabetically by epithet. Taxa that are not native to New England are indicated by uppercase text. Unpublished names are not used, even if publication is pending. Chromosome numbers are taken primarily from Flora of North America, Volume 7 (Flora of Norm America Editorial Committee 2010) and from Missouri Botanical Garden's Index to Plant Chromosome Numbers [website ( --. ; -. : :-.-. ; -. : . : T " ■■ 1); St. Louis, MO]. Synonymy is provided primarily with respect to names accepted in standard manuals covering New England published from 1950 onward, including Fernald (1950), Gleason (1952), Gleason and Cronquist (1991), and Seymour (1982). Synonyms have not been provided where the distribution for the synonymized name does not include New England. a) will aid readers in finding familiar i Capparaceae = > Cleomaceae Alyssum (in part) = > Aurinia Arabia (in part) = > Arabidopsis Arabis (in part) = > Boechera Arabis (in part) = > Turritis Armoracia (in part) = > Rorippa Brassica (in part) = > Sinapis Cardaria = > Lepidium Cleome (in part) = > Peritoma Cleome (in part) = > Tarenaya Coronopus = > Lepidium Dentaria = > Cardamine Neobecha = > Rorippa Neotularia (in part) = > Braya Rorippa (in part) = > Nasturtium d and Boufford: Atlas of the New England flora 3 The following species Slave been reported from our area but are excluded for the reasons noted: Arabis procurrens Waldstein & Kitaibel [no voucher for wild occurrence found: reported 1 1 • ■ 1 1 1 M.i^.i Jiii^lh| Diplotaxis erucoides (Linnaeus) de Candolle [no voucher for wild occurrence found; upi'ikd li"in \ l.ivv,|.^hiiv^|K| Draba aurea Vahl ex Hornemann [specimen collected from Barnstable Co., Massachusetts lacks information to indicate wild occurrence] Draba lac tea Adams (D, alien ii Fernald) [no specimen located; reported from Maine] Draba nivalis Liljeblad [specimen collected from Barnstable Co., Massachusetts lacks information to indicate wild occurrence] Lepidium hfrtum (Linnaeus) Smith [no specimen located; reported from Maine] Lepfdfum ramosfssfmum A. Nelson [no specimen located; reported from Maine] Malcolmfa marftfma (Linnaeus) W.T. Aiton [no specimen located; reported from New Hampshire] Rorfppa sessflfflora (Nuttall) Hitchcock [specimen from Massachusetts is deemed not to represent wild occurrence] Salix aurfta Linnaeus [no specimen located; reported from Massachusetts] Salix daphnofdes Villars [no specimen located; reported from Massachusetts] ANGIOSPERMAE (MAGNOLIOPHYTA) - ANGIOSPERMS BRASSICACEAE ALLIARIA PETIOLATA (M. Bieberstein) Cavara & Grande— Garlic Mustard (Figure 2). 2n = 42. Shaded roadsides, waste places, fields, thin woods. From Eurasia, northern Africa. [A. OFFICINALIS Andrzej o wski ex M. Bieberstein] Arabfdopsfs lyrata (Linnaeus) O'Kane & Al-Shehbaz subsp. lyrata — Sand Cress (Figure 2). In = 16, 32. Dry ledges (especially basic soil), gravels, sands. [Arabis lyrata Linnaeus] -Alpine Rock-cress (Figure 3). 2n = 16. Calcareous rocks, alpine meadows d and Boufford: Atlas of the New England flora Arabis pycnocarpa M. Hopkins var. pycnocarpa — Hairy Rock-cress (Figure 3). In = 32. Dry, calcareous ledges. [A. hirsute* (Linnaeus) Scopoli var. pycnocarpa (M. Hopkins) Rollins] ARMORACIA RUSTICANA P. Gaertner, B. Meyer & Scherbius— Horseradish (Figure 3). 2n = 32. Moist soil of waste places, roadsides, fields. From Eurasia. [A. LAPATHIFOLIA Gilibert] AURINIA SAXATALIS (Linnaeus) Desvaux— Basket-of-gold (Figure 4). 2n = 16. Rock outcrops. From Eurasia. [ALYSSUM SAXATILE Linnaeus] Barbarea orthoceras Ledehour — American Yellow-rocket (Figure 4). 2n = 16. Streambanks, swamps, wet rocks. BARBAREA STRICTA Andrzejowski— Small-flowered Winter-cress (Figure 4). 2n = 16. Roadsides, waste places, fields, usually in moist soil. From Eurasia. [B. VULGARIS W.T. Alton (in part) misapplied] BARBAREA VERNA (Miller) Ascherson— Early Winter-cress (Figure 4). 2n = 16. Roadsides, fields, waste places. From Eurasia. BARBAREA VULGARIS W.T. Aiton— Common Winter-cress (Figure 5). 2n = 16. Roadsides, fields, waste places, usually in moist soil. From Eurasia, northern Africa. [B. VULGARIS var. ARCUATA (Opiz ex C. Presl) Fries; B. VULGARIS vat. BRACHYCARPA Rouy & Foucaud] BERTEROA INCANA (Linnaeus) de Candolle— Hoary Alyssum (Figure 5). 2n = 16. Dry fields, roadsides, waste places. From Eurasia. BERTEROA MUTAB1US (Ventenat) de Candolle— (Figure 5). 2n = 74, 111, 148, 185. Roadsides, waste places. From Eurasia. Boechera canadensis (Linnaeus) Al-Shehbaz — Sicklepod (Figure 5). 2» = 14. liocky wooded slopes, rich woods. [Arabis canadensis Linnaeus] Boechera grahamii (Lehmann) Windham & Al-Shehbaz — Purple Rock-cress (Figure 6). 2n = 21. Ledges. [Arabis brachycarpa (Torrey & A. Gray) Britten; Arabis divaricarpa A. Nelson misapplied] Boechera laevigata (Muhlenberg ex Willdenow) Al-Shehbaz — Smooth Rock-cress (Figure 6). 2n = 14. Dry, rocky, wooded slopes, shaded ledges (chiefly calcareous), rich woods. [Arabis laevigata (Muhlenberg ex Willdenow) Poiret] Boechera missouriensis (Greene) Al-Shehbaz — Green Rock-cress (Figure 6). 2n = ? Dry ledges, rocky woods. [Arabis missouriensis Greene] Boechera stricia (Graham) Al-Shehbaz — Drummond's Rock-cress (Figure 6). 2n = 14. Rocky slopes, ledges. [Arabis drummondii A. Gray] BRASSICA JUNCEA (Linnaeus) Czernajew— Indian Mustard (Figure 7). 2n = 36. Fields, waste places, roadsides. From Eurasia, Africa. [B. JUNCEA var. CRISPIFOLIA L.H. Bailey] BRASSICA NAPUS Linnaeus — Turnip (Figure 7). 2n = 38. Fields, waste places, roadsides. From Eurasia, Africa, [B. NAPOBRASSICA (Linnaeus) Miller] d and Boufford: Atlas of the New England flora 5 BRASSICA OLERACEA Linnaeus— Cabbage (Figure 7). 2n = 18. Waste places. From Eurasia, Africa. 8). In = 20. Fields, waste places, roadsides. Braya humilis (C.A. Meyer) B.L. Robinson subsp. humilis — Northern Rock-cress (Figure 8). In = 28, 42, 56, 70. Calcareous cliffs and talus. [B. humilis var. ieiocarpa (Trautvetter) Fernald; Neotoruiaria humilis (C.A. Meyer) Fledge & J. Leonard] 8). In = 14. Roadsides, waste places. edentula — American Sea-rocket (Figure 8). In = 18. Sandy CAMELINA SATIVA (Linnaeus) Crantz— Gold-of-pleasure (Figure 9). 2n = 40. Fields, roadsides, waste places. From Eurasia. CAPSELLA BURSA-PASTORIS (Linnaeus) Medikus— Shepherd's-purse (Figure 9). 2n = 32. Roadsides, fields, waste places. From Eurasia, northern Africa. [C. BURSA-PASTORIS var. BIFIDA Crepin; C RUBEILA Reuter] Cardamine bellidifolia Linnaeus — Alpine Cress (Figure 9). 2n = 16. Alpine brooks, wet, mossy rocks at high altitudes. Cardamine bulbosa (Schreber ex Muhlenberg) Britton, Sterns & Poggenburg — Spring Cress (Figure 10). 2n = 16, 56, 64, 80, 96, 112. About springs, wet woods, meadows. [C. rhomboidea (Persoon) de Candolle] Cardamine concatenata (Michaux) O. Schwarz — Pepper-root (Figure 10). 2n = 128-256. Rich, moist woods, calcareous rocky banks. [Dentaria laciniata Muhlenberg ex Willdenow] Cardamine dentata Schultes— (Figure 10). In = 64, ca, 80. Margins of shallow water, often calcareous, swampy woods. [C. pratensis Linnaeus var. palustris Wimmer & Grabowski; see Marhold 1994, also Marhold (pers. comm.)] Cardamine diphylla (Mchaux) Alph. Wood — Crinkleroot (Figure 10). 2« = 96, Rich, moist woods. [Dentaria diphylla Michaux] Cardamine douglassii Britton — Purple Cress (Figure 11). 2n = 56, 64, 96, 112 144. Rich, moist woods. (Figure 11). 2n = 32. Fields, CARDAMINE HIRSUTA Linnaeus— Hairy Bitter-cress (Figure 11). 2n = 16. Roadsides, fields, waste places. From Eurasia. d and Boufford: Atlas of the New England flora CARDAMINE IMPATIENS Linnaeus— Narrow-leaved Bitter-cress (Figure 11). 2n = 16. Shaded grasslands, roadsides, disturbed areas, open woodlands. From Eurasia. Cardamine longii Fernald — (Figure 12). In = ? Tidal estuaries, tidal marshes. Cardamine maxima (Nuttall) Alph. Wood— Large Toothwort (Figure 12). 2n = 120, 124, 132, 138, 156, 161, ca. 208. Rich woods, woodland streambanks. [C. anomala (Fames) K, Schumann; Dentaria anomala Eames; D. maxima Nuttall] Cardamine parviflora Linnaeus — Sand Ritter-cress (Figure 12). 2n = 16. Dry, rocky or sandy woods, ledges. [C. parviflora var. arenwola (Britton) O.E. Schulz] Cardamine pensylvanica Muhlenberg ex Willdenow — Common Bitter-cress (Figure 12). 2n = 32, 64. Springs, brooksides, pond shores, swamps. [C. pensylvanica var. brittoniana Farwell] Cardamine pratensis Linnaeus — Cuckooflower (Figure 13). 2n = 16. Meadows, moist grounds. — Cardamme hybrids — Cardamine concatenata (Michaux) O. Schwarz x C. maxima (Nuttall) Aiph. Wood— (Figure 13). [C. x incisa K. Schumann; Dentaria x incisifolia Eames ex Britton] CHORISPORA TENELLA (Pallas) de Candolle— Purple Mustard (Figure 13). 2n = 14. Roadsides, fields, waste places. From Eurasia, northern Africa. CONR1NGIA ORIENTALIS (Linnaeus) Dumortier— Hare's-ear Mustard (Figure 13). 2n = 14. Roadsides, fields, waste places. From. Eurasia. Descurainia incana (Bernhardi ex Fischer & CA. Meyer) Dorn — Mountain Tansy-mustard (Figure 14). 2n = 14, 28. Calcareous gravels, roadsides. [D. richardsonii O.E. Schulz] Descurainia pinnata (Walter) Britton subsp, brachycarpa (Richardson) Detling — Green Tansy- mustard (Figure 14). 2n = 14, 28. Roadsides, dry, rocky or sandy soils. DESCURAINIA SOPHIA (Linnaeus) Webb ex Prantl— Flixweed (Figure 14). 2n = 28. Roadsides, waste places. From Eurasia. DIPLOTAXIS TENUIFOLIA (Linnaeus) de Candolle— Perennial Wall-rocket (Figure 15). 2n = 22. Waste places, roadsides. From Eurasia, Africa. (Figure 15). 2n = 96. Rock outcrops, usually Draba carta Rydberg — Ashy Whitlow-grass (Figure 15). 2n = 32. Calcareous cliffs. [D. breweri S. Watson var. cana (Rydberg) Rollins; D. lanceolata Royle - misapplied] Draba glabella Pursh — Smooth Whitlow-grass (Figure 15). 2n = 64, 80. Rock outcrops, usually calcareous. [D. glabella var. orthocarpa (Fernald & Knowlton) Fernald] d and Boufford: Atlas of the New England flora 7 Draba reptans (Lamarck) Femald— Carolina Whitlow-grass (Figure 16). 2n = 16, 30, 32. Fields, ledges, dry sands. DRABA VERNA Linnaeus— Common Whitlow-grass (Figure 16). 2n = 14, 16, 20, 24, 28, 30, 32, 34, 36, 38, 40, 52, 54, 58, 60, 64. Roadsides, fields, waste places, open, dry places. From Eurasia, northwestern Africa. [D. VERNA var. BOERHAA VII (H.C. Hall) Dumortier] ERUCA VESICARIA (Linnaeus) Cavanilles subsp. SATIVA (Miller) Thellung— Arugula (Figure 16). 2n = 22. Waste places, roadsides, fields. From Europe, Africa. [ERUCA SATIVA Miller] ERUCASTRUM GALUCUM (Willdenow) O.E. Shulz— Dog Mustard (Figure 17). 2n = 30. Waste places, roadsides, railroads, fields. From Europe. ERYSIMUM HIERACIFOLIUM Linnaeus— European Wallflower (Figure 17). 2n = 81. Roadsides, waste places, fields. From Eurasia. ERYSIMUM INCONSPICUUM (S. Watson) MacMillan— Small-flowered Prairie-rocket (Figure 17). 2n = 26. Railroad embankments, roadsides, dry, open soil. From farther west. ERYSIMUM MARSCHALLIANUM Andrzejowski ex M. Bieberstein— (Figure 18). 2n = 48. Moist thickets. [E. DURUM}. Presl & C. Presl; Note: Dr. Ihsan Al-Shehbaz (pers. comm.) believes the Grand Isle Co, VT voucher to be E. VIRGATUM Roth] IBERISAMARA Linnaeus— Rocket Candytuft (Figure 19). 2n = 14. Waste places, especially dum From western Europe. IBERIS SEMPERVIRENS Linnaeus— Evergreen Candytuft (Figure 19). 2n = 22. Fields, waste plac From Europe. IBERIS UMBELLATA Linnaeus— Globe Candytuft (Figure 19). 2n = 14, 16, 18, 34. Waste plac From Europe. 20). 2n = 14, 28. Roadsides, fields, wa d and Boufford: Atlas of the New England flora LEPIDIUM CORONOPUS (Linnaeus) Al-Shehbaz— Swine-cress (Figure 20). 2« = 32. Waste places, fields, roadsides. From Eurasia, northern Africa. [CORONOPUS SQUAMATUS (Forsskal) Ascherson] LEPIDIUM D1DYMUM Linnaeus— Lesser Wort-cress (Figure 21). 2n - 32. Waste places, roadsides, fields. Form South America. [CORONOPUS DIDYMUM (Linnaeus) Smith] LEPIDIUM DRABA Linnaeus— Hoary Cress (Figure 21). 2n = 32, 64. Roadsides, waste places, fields. From Eurasia. [CARDARIA DRABA (Lmmeus) Desvaux] LEPIDIUM HETEROPHYLLUM Bentham— Smith's Pepperwort (Figure 21). 2n = 48. Roadsides, fields, waste places. LEPIDIUM PERFOUATUM Linnaeus— Clasping Pepperwort (Figure 22). In = 16. Roadsides, railroads, fields, waste places. From Eurasia, northern Africa. Lepidium virginicum Linnaeus subsp. virginicum — Wild Pepper-grass (Figure 22). 2n = 32. Roadsides, waste places, dry, open soil. LUNARIA ANNUA Linnaeus— Honesty (Figure 23). 2« = 30. Roadsides, waste places. From Europe. MICROTHLASPI PERFOUATUM (Linnaeus) F.K. MEYER— Perfoliate Penny-cress (Figure 23). 2n = 14, 28, 42. Fields, waste places. From Eurasia, northern Africa. [THLASPI PERFOUATUM Linnaeus] NASTURTIUM MICROPHYLLUM Boenninghausen ex Reichenbach— (Figure 23). 2n = 64. Brooks. From Europe. [N OFFICINALE W.T. Aiton var. MICROPHYLLUM (Boenninghausen ex Reichenbach) Thellung; RORIPPA MICROPHYLLA (Boenninghausen ex Reichenbach) Hylander ex A L6ve & D. L6ve] NASTURTIUM OFFICINALE W.T. Aiton— True Water-cress (Figure 24). 2n = 32. Brooks, ditches, springheads. From Eurasia, northern Africa. [N OFFICINALE var. SIIFOLIUM Reiche; RORIPPA NASTURTIUM-AQUATICUM (Linnaeus) Hayek] d and Boufford: Atlas of the New England flora 9 — Nasturtium hybrids — NASTURTIUM > STERILE (Airy Shaw) Oefelein— (Figure 24). [N. MICROPHYLLUM Boenninghausen ex Reichenbach x N. OFFICINALE W.T. Aiton; RORIPPA x STERILIS Airy Shaw] RAP1STR UM RUGOSUM (Linnaeus) Allioni— Bastard Cabbage (Figure 25). 2« = 16. Waste places. roadsides. From Europe. [R. RUGOSUM var. VENOSUM (Persoon) de Candolle] RORIPPA AMPHIBIA (Linnaeus) Besser— Great Yellow-cress (Figure 25). 2n = 16, 32. Quiet water, shores, waste places. From Eurasia. Rorippa aquatica (Eaton) E.J. Palmer & Steyermark — Lake-cress (Figure 25). In = 24. Lakes, quiet streams. [Armoracia aquatica (Eaton) Wiegand; A. lacustris (A. Gray) Al-Shehbaz & V.M. Bates; Neobeckia aquatica (Eaton) Greene] RORIPPA AUSTRIACA (Cranz) Besser— Austrian Yellow-cress (Figure 26). 2n = 24. Low fields, muddy shores, ditches. From Europe. RORIPPA GLOBOSA (Ti 26). 2n = 16. Waste pi, Rorippa palustris (Linnaeus) Besser subsp. palustris — Marsh Cress (Figure 26). 2n = 32. Shores, damp openings, ditches. [R. palustris subsp. fernaldiana (Butters & Abbe) Jonsell; R. islandica (Oeder ex Murray) Borbas var. fernaldiana Butters & Abbe; R. islandica var. islandica misapplied] Rorippa palustris (Linnaeus) Besser subsp. hispida (Desvaux) Jonsell — {Figure 26), In = : 32. Shores, damp openings, waste places. [R. islandica (Oeder ex Murray) Borbas var. hispida (Desvaux) Butters & Abbe; R. islandica var. islandica misapplied] — Rorippa hybrids — RORIPPA x PROSTRATA (J.P. Bergeret) Schinz & Thellung— (Figure 27). [R. AMPHIBIA (Linnaeus) Besser x R. SYL VESTRIS (Linnaeus) Besser] SINAPISALBA Linnaeus— White Mustard (Figure 27). 2n = 24. Roadsides, waste places, railroads. From Eurasia. [BRASSICA ALBA (Linnaeus) Rabenhorst; B. HIRTA Moench] SINAPISARVENSIS Linnaeus— Charlock (Figure 27). 2n = 18. Waste places, fields, roadsides. From Eurasia. [BRASSICA KABER (de Candolle) L.C, Wheeler; B. KABER var, PINNATIFIDA (Stokes) L.C. Wheeler; B. KABER var. SCHKUHRIANA (Reichenbach) L.C. Wheeler] Angelo and Boufford: Atlas of the New England flora 10 SISYMBRIUM OFFICINALE (Linnaeus) Scopoli— Hedge-mustard (Figure 28). 2n = 14. Waste places, roadsides, fields. From Eurasia, northern Africa. [S. OFFICINALE var. LEIOCARPUM de Candolle] Subularia aquatica Linnaeus subsp. americana G.A. Mulligan & Calder — Awlwort (Figure 29). In = 30. Submersed at sandy lake shores. TEESDAUA NUDICAULIS (Linnaeus) W.T. Aiton— Shepherd's Cress (Figure 29). 2n = 36. Sandy fields, roadsides, waste places. From Eurasia. TROPIDOCARPUM GRACILE Hooker— Dobie Pod (Figure 30). In = 16. Wool waste. From farther Turritis glabra Linnaeus — Tower-mustard (Figure 30). 2« = 12, 16, 32. Rich, open woods, ledges, fields, railroads. [Arabis glabra (Linnaeus) Bernhardi] CLEOMACEAE PERITOMA SERRULATA (Pursh) de Candolle— Rocky Mountain Beeplant (Figure 30). 2n = 34, 60. Waste places. From farther west. [CLEOME SERRULATA Pursh] Polanisia dodecandra (Linnaeus) de Candolle subsp. dodecandra — -Clammyweed (Figure 30). 2/2 = 20. Sandy or gravelly shores. [P. graveolens Rafinesque] POLANISIA DODECANDRA (Linnaeus) de Candolle subsp. TRACHYSPERMA (Torrey & A. Gray) H.H. litis — Sandyseed (Figure 31). Roadsides. From farther west and south. [P. TRACHYSPERMA Torrey & A. Gray] TARENAYA HASSLERIANA (Chodat) H.H. litis— Pink-queen (Figure 31). Waste places, roadsides. From South America. [CLEOME HASSLERIANA Chodat; C. SPINOSA (Jacquin) Rafinesque - misapplied] LIMNANTHACEAE F'loerkea proserpinacoides Willdenow — False Mermaid (Figure 31). In = 10. Alluvial woods, usually wet. d and Boufford: Atlas of the New England flora RESEDACEAE RESEDA ALBA Linnaeus — White Mignonette (Figure 31). 2n = 40. Waste places, roadsides. From Eurasia, northern Africa. 32). 2n = 12. Wa SALICACEAE POPULUS ALBA Linnaeus— White Poplar (Figure 32). 2n = 38. Roadsides, waste places, field borders. From Eurasia. Populus balsamifera Linnaeus — Balsam Poplar (Figure 33). 2n = 38. Alluvial soils, streambanks, rich, low woods. [P. balsamifera var. subcordata Hylander] Populus deltoides W. Bartram ex Marshall subsp. deltoides — Cottonwood (Figure 33). 2n = 38. Streambanks, lake shores, floodplains. Populus grandidentata Mchaux — Bigtooth Aspen (Figure 33). 2n = 38. Dry woods, recent bums, hillsides. Populus heterophylla Linnaeus — Swamp Poplar (Figure 33). 2n = ? Swamps, flooded bottomlands. POPULUS NIGRA Linnaeus— Lombardy Poplar (Figure 34). 2n = 38, 57. Roadsides, old house sites. From Eurasia. [P. NIGRA var, ITALIC A Munchhausen] Populus tremuloides Michaux — Quaking Aspen (Figure 34), 2n = 38, 57, 76. Dry, open woods, recent burns and clearings, roadsides. [P. tremuloides var. magnifica Victorin] — Populus hybrids — Populus x canadensis Moench — (Figure 34). [P. deltoides W. Bartram ex Marshall subsp. deltoides > P. NIGRA Linnaeus] POPULUS x CANESCENS (Aiton) Smith— Gray Poplar (Figure 35). [P. ALBA Linnaeus x P. TREMULA Linnaeus] Populus x heimburgii B. Boivin — (Figure 35). [P. ALBA Linnaeus x p. tremuloides Mchaux] Populus x jackii Sargent — Balm-of-Gilead (Figure 35). [P. balsamifera Linnaeus x p. deltoides W. Bartram ex Marshall subsp. deltoides: P. x gileadensis Rouleau] Populus x rouleauiana B. Boivin — (Figure 35). [P. ALBA Linnaeus x P. grandidentata Mchaux] Angelo and Boufford: Atlas of the New England flora 12 Populus x smithii B. Boivin — (Figure 36), [P. grandidentata Michaux x p. tremuloides Michaux] SALIX ALBA Linnaeus — White Willow (Figure 36). In = 76. Low moist ground, along streams, shores, roadsides. From Eurasia. [S ALBA var. CALVA Michaux; £ ALBA var. CALVA (Linnaeus) Stokes] Salix amygdaloid es Andersson — Peach-leaved Willow (Figure 36). In = 38. Lake shores, low woods. Salix arctophila Cockerell ex A. Heller — Northern Willow (Figure 36). In = 76. Alpine meadows. Salix argyrocarpa Andersson — Labrador Willow (Figure 37). 2n =■ 76. Alpine or subalpine meadows. SALIX ATROCINEREA Brotero— Rusty Willow (Figure 37). 2n = 76. Marshes, wooded wetlands. From Europe. SALIX BABYLONICA Linnaeus— Weeping Willow (Figure 37). 2n = 76. Streambanks, shores, low grounds, near settlements. From Asia. Salix bebbiana Sargent — Bebb Willow (Figure 37). 2n = 38. Damp thickets, springy places. Salix Candida Fliigge ex Willdenow — Hoary Willow (Figure 38). 2n = 38. Calcareous bogs and swamps. SALIX CAPREA Linnaeus— Goat Willow (Figure 38). 2n = 38. Thickets, roadsides. From Europe. SALIX CI NEREA. Linnaeus — Gray Willow (Figure 38). 2n = 76. Sandy or gravelly, freshwater shores, wet thickets, moist waste places. From Eurasia. Salix discolor Muhlenberg— Pussy Willow (Figure 39). 2n = 76, 95, 114. Damp thickets, freshwater shores, swamps. [S discolor var. oven C.R. Ball] SALIX ELAEAGNOS Scopoli— Olive Willow (Figure 39). 2n = 38. Shores, rocky banks. From Europe. [S INCANA Schrank] Salix eriocephala Michaux — Wand Willow (Figure 39). 2n = 38. Low thickets, pond shores, streambanks, swamps. [S. cordata Muhlenberg var. abrasa Fernald; S. rzs • ;.*;,.,. v.ii ,. . . .-,..-,. i I'uivh i I i'in.iUI| Salix herbacea Linnaeus — Dwarf Willow (Figure 39). 2n = 38. Mossy rocks in alpine areas Salix humilis Marshall var. humilis — Prairie Willow (Figure 40). 2n = 38, 76. Dry thickets. dry, mixed woods. [S. humilis var. hyporhysa Fernald; S. humilis 1 Farwell] Salix humilis Marshall var, tristis (Aiton) Griggs — Dwarf Prairie Willow (Figure 40). 2n = ' barrens, open woods, swampy areas in woods. [S. humilis var. microphylla (Andei Fernald; S. occidentalis Walter] Angelo and Boufford: Atlas of the New England flora 13 Salix interior Rowlee — Sandbar Willow (Figure 40). In = 38. Sandy or silty alluvial soil, river sandbars, streambanks, shores. [S. interior var. exterior Fernaid; S. exigua Nuttall subsp. :■:'. ' . ' i k<-u kv " ' 'i.'IH|iii^I| Salix lucida Muhlenberg — Shining Willow (Figure 40). In = 76. Low grounds, freshwater shores, swamps. [S. lucida var. angustifolia (Andersson) Andersson; S. lucida var. intonsa Fernaid] Salix myricoides Muhlenberg — Blue-leaf Willow (Figure 41). In = ? River thickets, gravelly shores, usually in calcareous soil. [S. glaucophylloides Fernaid] Salix nigra Marshall — Black Willow (Figure 41). In = 38. Streambanks, shores, rich, low, woods. Salix pedicellaris Pursh — Bog Willow (Figure 41). 'In = 38, 57, 76. Sphagnum bogs and swamps, sphagnous shores. [S. pedicellaris var. hypoglauca Fernaid; S. pedicellaris var. tenuescens Fernaid] Willow (Figure 42). In = 38. Streambanks, shores, rich, SALIX PENTANDRA Linnaeus— Bay-leaved Willow (Figure 42). In = 38. Roadsides, meadows, shores, waste places. From Eurasia. Salix petiolaris Smith — Slender Willow (Figure 42), "In = 38. Meadows, river thickets, low, moist openings in deciduous woods. [S. gracilis Andersson; S. gracilis var. textoris Fernaid; S. x subsericea (Andersson) C.K. Schneider] Salix planifolia Pursh — Tea-leaved Willow (Figure 42), 2« = 57, 76. Alpine, subalpine and boreal meadows, streambanks, wet thickets. SALIX PURPUREA Linnaeus — Purple Osier (Figure 43). 2n =- 38. Low, wet ground. From Europe. Salix pyrifolia Andersson — Balsam Willow (Figure 43). 'In = 38. Bogs, swamps, damp thickets. Salix sericea Marshall — Silky Willow (Figure 43). 2n = ? River thickets, swamps. [S. coactilis Fernaid] Salix serissima (L.H. Bailey) Fernaid— Autumn Willow (Figure 43). 2s = 76, Calcareous marshes, bogs and swamps. Salix uva-ursi Pursh — Bearberry Willow (Figure 44). 2« = 38. Exposed, rocky, alpine areas. SALIX V1M1NAL1S Linnaeus — Osier (Figure 44). 2« = 38. Streambanks, roadsides, freshwater shores. From Europe. — Salix hybrids — SALIX ALBA Linnaeus x S. petiolaris Smith— (Figure 44). Angelo and Boufford: Atlas of the New England flora 14 Salix bebbiana Sargent x S. eriocephala Michaux — (Figure 45). Salix bebbiana Sargent x S. humilis Marshall var, humilis — (Figure 45). Salix bebbiana Sargent x S. petiolaris Smith — (Figure 45). Salix x besschelii B. Boivin — (Figure 45). [S. bebbiana Sargent x S. discolor Muhlenberg] Salix Candida Fliigge ex Willdenow x S. pellita (Andersson) Bebb — (Figure 46). SALIX CINEREA Linnaeus x S eriocephala Michaux— (Figure 46). Salix cordata Michaux x S. sericea Marshall — (Figure 46). Salix ' cryptodonta Fernald — (Figure 46). \S. bebbiana Sargent x S. Candida Fliigge ex Willdenow] Salix discolor Muhlenberg - S. eriocephala Michaux — (Figure 47). Salix discolor Muhlenberg x S. humilis Marshall var. humilis — (Figure 47). Salix discolor Muhlenberg > S. petiolaris Smith — (Figure 47). Salix discolor Muhlenberg x S. pyrifolia Andersson — (Figure 47). SALIX x EHRHARTIANA G. Meyer— (Figure 48). [S ALBA Linnaeus x S. PENTANDRA Linnaeus] Salix eriocephala Michaux x S. lucida Muhlenberg — (Figure 48). Salix eriocephala Michaux x S. myricoides Muhlenberg — (Figure 48). Salix eriocephala Michaux x S. pedicellaris Pursh — (Figure 48). Salix eriocephala Michaux x S. petiolaris Smith — (Figure 49). Salix eriocephala Michaux x S. sericea Marshall — (Figure 49). SAUX x FRAGIUS Linnaeus— Crack Willow (Figure 49). [S. ALBA Linnaeus x S EUXINA I.V. Belyaeva; S x RUBENS Schrank] Salix x grayi C.K. Schneider — (Figure 49). [S. argyrocarpa Andersson x S. planifolia Pursh] Salix humilis Marshall var. humilis x S. petiolaris Smith — (Figure 50). Salix humilis Marshall var. humilis x S. sericea Marshall — (Figure 50). Salix humilis Marshall var. tristis (Aiton) Griggs x S. petiolaris Smith — (Figure 50). Salix •• jesupii Fernald— (Figure 50). [S. ALBA Linnaeus x S. lucida Muhlenberg] Salix lucida Muhlenberg > S. serissima (L.H. Bailey) Fernald — (Figure 51). Salix x peasei Fernald — (Figure 51). [S. herbacea Linnaeus x S. uva-ursi Pursh] Angelo and Boufford: Atlas of the New England flora 15 SALLY x PENDULLNA Wenderoth— Weeping Willow (Figure 51). [S. BABYLONLCA Linnaeus x S \r ! I \ KK.kv.i| Salix petiolaris Smith x S. sericea Marshall— (Figure 51). Salix x rubella Bebb ex C.K. Schneider— (Figure 52). [S. Candida Fliigge ex Willdenow x S. ■..:■: \IiJi.iii ,| SALIX x SEPULCRALLS Simonkai— Weeping Willow (Figure 52). [S. ALBA Linnaeus x S. BABYLONLCA Linnaeus] SALIX x SMLTHLANA Willdenow— (Figure 52). [S. CAPREA Linnaeus x S. VIMINALIS Linnaeus; S. xSERICANS Tausch] TROPAEOLACEAE TROPAEOLUM MAJUS Linnaeus— Garden Nasturtium (Figure 52). 2n = 28. Waste places, roadsides. From South America. ACKNOWLEDGMENTS We thank the curators and directors of the herbaria of the New England Botanical Club, the Harvard University Herbaria, the University of Massachusetts, the University of Vermont, and the University of Connecticut for allowing access to their collections. For the University of Maine herbarium we used their exceptional online database of Maine specimens. We are grateful also to Karen Searcy for facilitating access to the herbarium and to the notebooks of Harry E. Ahles at the University of Massachusetts (Amherst) and for kindly answering requests for information after our visit. James Hinds also generously checked information on voucher specimens at the University of Maine (Orono). The following persons checked certain records for us at their respective institutions: Janet R. Sullivan, and Elizabeth F. Allen. In particular we thank the following individuals for repeated checking of specimens at their institution: Robert Capers of the University of Connecticut and Lisa I. Palmer of Dartmouth College. George Argus and Robert Bertin kindly provided information about Salix vouchers. Karol Marhold provided information relating to Cardamine. Lastly, Ihsan A. Al-Shehbaz generously provided much assistance with questions relating to Brassicaceae. We thank Kanchi Gandhi for nomenclatural advice. REFERENCES (General references listed in our previous articles are not repeated here; current references for the families treated are in Flora of North America Editorial Committee 2010.) Angelo, R 1994. A computer method for producing dot distribution maps. Rhodora 96: 190-194. Angelo, R. and D.E. Boufford. 1996. Atlas of the flora of New England: Pteridophytes and gymnosperms. Rhodora 98: 1-79. Angelo, R. and D.E. Boufford. 1998. Atlas of the flora of New England: Poaceae. Rhodora 100: 101-233. Angelo, R. and D.E. Boufford. 2000. Atlas of the flora of New England: Monocots except Poaceae and Cyperaceae. Rhodora 102: 1-119. Angelo, R. and D.E. Boufford. 2007. Atlas of the flora of New England: Cyperaceae. Rhodora 109: 237-360. Angelo, R and D.E. Boufford. 2010. Atlas of the flora of New England: Magnoliidae & Angelo and Boufford: Atlas of the New England flora 16 Angelo, R. and D.E. Boufford. 2011. Atlas of the flora of New England: Caryophyllidae. Rhodora (in press). Angelo, R. and D.E. Boufford. 2012. Atlas of the flora of New England: Paeoniaceae to Ericaceae. Rhodora (in press). Fernald, M.L. 1950. Gray's Manual of Botany, ed. 8. American Book Company, New York. Flora of North America Editorial Committee (eds.). 2010. Flora of North America North of Mexico. Volume 7, Magnoliophyta: Salicaceae to Brassicaceae. Oxford Univ. Press, New York and Oxford, U.K. Gleason, H.A 1952. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, NY. . and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada 2nd ed. The New York Botanical Garden, Bronx, NY. Marhold, K. 1994. Taxonomy of the genus Cardamine L. (Cruciferae) in the Carpathians and Pannonia. I. Cardamine pratensis Group. Folia Geobot. Phytotax. 29: 335-374. Seymour, F.C. 1982. The Flora of New England, 2nd ed. Phytologia Mem. V. Plainfield, NJ. Stevens, P.F. 2001 onwards. Angiosperm Phylogeny Website, version 9, June 2008 [and more or less continuously updated since]. Website ( HAMPSHIRE CONNECTICUT RHODE ISLAND Figure 2. Distribution rasps. 4RMORACIA RUSTICANA Figure 3. Distribution rasps. BARBAREA STRJCTA BAKBAREA VERNA Figure 4. Distribution n BERTEROA MUTABILIS Figure 5. Distribution n Figure 6. Distribution n BRASSICA NIGRA BRASS1CA OLERACEA Figure 7. Distributions B UNIA S OMENTAL IS FigureS. Distribution n CAPSELLA BURSA-PASTORIS Figure 9. Distribution n Figure 1 0. Distribution n CARDAMINE HIRSUTA CARDAMINE IMP A TIENS Figure 1 1 . Distribution n CHORISPORA TENELLA COMUNGIA ORIENTALIS Figure 13. Distribution n DESCURAINIA SOPHIA DIPLOTAXIS MURALIS Figure 14. Distribution!] Figure 15. Distribution!] DRABA VERN. Figure 1 6. Distribution n ERYSIMUM HIERACIFOLIUM ERYSIMUM INCONSPICUUA Figure 17. Distribution!] ERYSIMUM REPANDUM EUCLIDIUM SYRJACm Figure 18. Distribution!] IBERIS SEMPER V1R ENS IBERIS UMBELLATA Figure 19. Distribution n LEPIDIUM CORONOPUS LEPIDIUMDENSIFLORUA Figure 20. Distribution n LEPIDIUMHETEROPHYLLUM LEPIDIUM LATIFOLIUM Figure 2 1 . Distribution n LEPIDIUM SATIVL Figure 22. Distribution n MICROTHLASPI PERFOLIATUM NASTURTIUM MICROPHYLLUM Figure 23. Distribution!] NESL1A PANICULATA RAPHANUS RAPHANISTRUk Figure 24. Distribution n RORJPPA AMPHIBIA Figure 25. Distribution n SINAPISARVENSIS Figure T: '. Distribution maps. SISYMBRIUM LOESELII SISYMBRIUM OFFICINA IE Figure 28. Distribution n TEESDALIA NUDICAU1IS TH1ASPI ARVENSE Figure 29. Distribution maps. PERITOMA SERRULA Figure 30. Distribution n Figure 3 1 . Distribution n RESEDA ODORATA POPULUSALBA Figure 32. Distribution n Figure 33. Distribution n Figure 34. Distribution n Figure 35. Distribution n Figure 36. Distribution n SALIXBABYLONJCA Figure 37. Distribution!] SALIX CINEMA Figure 38. Distribution n Figure 39. Distribution!] Figure 40. Distribution n Figure 4 1 . Distribution n Figure 42. Distribution n Figure 43. Distribution!] SALIX VIMNALIS Figure 44. Distribution n Figure 45. Distribution n Figure 46. Distribution n Figure 47. Distribution n Figure 48. Distribution n SALIXxFRAGILIS Figure 49. Distribution n Figure 50. Distribution n SALIXxPENDULIK Figure 5 1 . Distribution n SAL1X x SMTHIANA TROPAEOLUM MAJUS Figure 52. Distribution n TROPAEOLUM MINUS Figure 53 . Distribution n