‘Missouri BOTANICAL ete Vol RVITE JANUARY, 1930. | Nort | Lae B= ne Stee - CONTENTS : 4 one Forty-first Annual Report of the Director. . . ... «1 Statistical information. 005. ete ea Pa, SRE Floral Displays of Special Interest in 1930 ST. LOUtS, Mo. as ‘ 1989. 5 SA = . x Rg Published Monthly, Except July.and August, by the Board of Trustees : | ; | SUBSCRIPTION PRICE: 3 - ONE DOLLAR PER YEAR SINGLE COPIES TEN CENTS MissoUR! BOTANICAL GARDEN LIBRARY ‘iged poate, MEMBERS WERE pearenvens IN MR. SHAW'S Wabi , _ AND. THE BOARD SO CONSTITUTED, EXCLUSIVE OF une _ EX-OFFICIO aE, Is bens: Stasnl Shit th - President ~ gxoRGE G: HITCHCOCK, * Gaoaatl Viee-Precident “f DANIEL. K. CATLIN ‘Chanoallo ey Washington Cavey a > ~~ Wampemcx F. ‘Jorxaon: eae eo 7: a ‘Bison of te Diowe of Minus soe | Progideat of The ncndemy of Selene « LOS ALV I I AIRPLANE VIEW OF NORTH HALF OF THE MISSOURI BOTANICAL GARDEN, (Photo by courtesy of C. H. Butler, Aerial Surveys, Inc.) Missoun Botanical Garden Bulletin Vol. XVIII JANUARY, 1930 No. 1 FORTY-FIRST ANNUAL REPORT OF THE DIRECTOR Gentlemen: I have the honor to submit herewith the forty-first annual report of the Director. Any one engaged in attempting to grow plants out of doors realizes what a factor the weather is in the success or failure of his efforts. While no one ever expects the weather in this climate to be ideal, during the growing season at an institution like the Garden the fluctuations come to be regarded as part of the ordinary routine which must be counteracted in the best way possible. It is not uncommon to read in reports from other institutions such statements as ‘‘The atrocious weather of the last two weeks has had a most disastrous effect on plants,’’ but only when exceptional storms do unusual dam- age is it necessary that more than this be said. The snow storm of May 2, 1929, falls in this class, since the damage to trees and particularly to shrubs and herbaceous plants was very great, even exceeding that from the eyclone of Septem- ber, 1927. Coming at a time when many plants were in full leaf, the heavy snowfall caused a type of damage quite unusual. Small plants which are ordinarily uninjured by storms were, because of the weight of the snow, snapped off at the ground, and no eatastrophe which the Garden has ever suffered has caused so much damage to the smaller woody and ‘herbaceous material. Trees likewise suffered, hundreds of them losing branches, in some cases the tops being broken out so as to disfigure them badly. The greatest loss was from (1) G4 2 MISSOURI BOTANICAL GARDEN BULLETIN the disfiguration or practical destruction of trees fifty or more years of age of which the Garden possessed but a single fine specimen. sh ied « bo MISSOURI BOTANICAL GARDEN BULLETIN 5 Prof. G. H. Bretnall, accompanied by his class in botany, of Christian College, Columbia, Mo.; Dr. Carl G. Deuber, instructor in plant physiology, Yale University ; Mr. Edward L. Evinger, of the Bureau of Plant Industry, U. 8. Depart- ment of Agriculture. Out-of-town botanists also have the privilege of borrowing books on the interlibrary loan plan, and during the year 109 such loans were made to 28 institutions. New Accessions.—Quite a feature of the Garden’s acces- sions in 1929 was the collection of old horticultural literature which Mr. Gurney Wilson, the European representative, was able to obtain from time to time in England. Also the book catalogues have been listing some unusually desirable things, and recently several old Floras and a work on Mosses for which the Garden has been searching for years was ordered from a foreign dealer. Some of the important books obtained in 1929 were Roseoe’s ‘‘Monandrian plants,’’ published in 1828, Patouillard’s ‘‘Tabulae analyticae fungorum,’’ and Wizlizenus’ ‘‘Memoir of a tour of northern Mexico connected with Col. Doniphan’s Expedition.’’ Some modern works of particular interest were the following: Cram, Modern loose- leaf atlas; Druce, Flora of Oxfordshire; Farlow and Burt, Iecones Farlowianae; Hough, American woods, pt. 14; Index Londinensis; Proceedings International Congress of Soil Science, 2 vols.; Inzenga, Funghi Siciliana; Lemée, Diction- naire descriptif et synonymique des genres de plantes phan- erogames; Mayo Foundation Lectures on Plant Physiology and Pathology; Meisel, A bibliography of American history, Vol. 3; Morris and Eames, Our wild orchids; Seymour, Host index to the fungi of North America; Turrill, Plant life of the Balkan Peninsula; a reprint of Van de Pass, Hortus Floridus; Wilson, China, mother of gardens; and Walcott, North American wild flowers, Vol. 5. Due to the failure of a foreign publisher, some of the foreign continuations were not received in 1929. When this was discovered every Gar- den continuation was checked, and the missing parts written for. Many books and pamphlets, as well as serials, were received during the year in exchange for the Garden pub- lications. Garden Publications —The four numbers of Volume XVI 26 MISSOURI BOTANICAL GARDEN BULLETIN of the ANNALS were issued in 1929. The volume is unusually large, containing 519 pages, 42 plates, and 31 text-figures. Eleven institutions were added to the ANNALS exchange list during the year, of which 1 was in Russia, 1 Poland, 2 Ger- many, 2 China, 1 Japan, 1 Canada, and 3 the United States. Volume XVII of the monthly BULLETIN was completed, with 167 pages and 39 plates. A new catalogue of the water-lily plants on sale by the Garden was also published in 1929. The Garden has continued to receive an increasing amount of publicity not only from the local press, national and inter- national news reels, ete., but from a variety of periodicals. In order to give some idea of the scope of the publicity outside © of St. Louis, the names of some of the magazines which have printed either articles from the BuLuerin, original matter, or extended notices of the Garden, are listed: Southern Florist ‘ Lorettine Florists’ Review Orchid Review Ladies’ Home Journal Florists Exchange Flower Grower Park & Cemetery American Iris Society Bulletin Horticulture Illustrated Horticulture Pudor Seed Co, Catalogue Statistical Information.—There have been donated to the library or received in exchange during the year 519 books valued at $1053.10, and 1036 pamphlets valued at $624.40. Three hundred and ninety-five books were bought at a cost of $2083.65, and 283 pamphletsvat a cost of $411.95. Seventy- six volumes were sold for $485,00, and 147 books and pam- phlets were discarded. The library now contains 44,810 books and 68,540 pamphlets. There are also 331 manuscripts val- ued at $1614.80 and 972,862 index cards valued at $11,582.22. A total of 9439 cards was added during the year, of which 1315 were written by Garden employees and 8124 were bought at a cost of $158.35. Three hundred and sixteen books were bound and 275 were repaired. Grorce T. Moors, Director. MISSOURI BOTANICAL GARDEN BULLETIN 27 STATISTICAL INFORMATION FOR DECEMBER, 1929 GARDEN ATTENDANCE: MOLAl TUMDEL Of WVASICOES) + techs ete crt on akeistuie vie aisleielcers eis 14,128 LIBRARY ACCESSIONS: Total number of books and pamphlets bought........... 15 Total number of books and‘pamphlets donated.......... 94 HERBARIUM ACCESSIONS: NOVEMBER By Purchase— Broadway, W. E.—Plants of Trinidad and Tobago....... 100 Purpus, Dr. C. A—Plants of Mexico..................4.. 150 By Gift— Hitchcock, C. L.—Photograph of Washingtonia filifera WSO oes Sete ere ate wc Se ae etna tea eee ite a eae Husted, Miss Fanny Lou—Plants of Colorado........... 27 Roush, Eva M. Fling—Plant of horticulture............. 1 von Schrenk, Dr, Hermann—Pinuws rigida Mill.......... 1 By Exchange— Botanical Museum—University of Cluj, by Professor Al. Borza—Plants of Roumania—Centuries VIII-IX, Nos. 0129.0 0 dal Clog Mresteee te ca trttes es. nicwe oie-oi= epi eerie ns eo ales 200 AOUEL cerca Gd tan rete ener on tte aden ae eee mE S vies e1ehe letersi s 480 DECEMBER By Gift— Bush, B. F.—Mosses of North America.................. 2 Deam;-C.-C.— Plants OL. TO tee ee aie dae vent aac oc egvan 2 Heitman, Arthur—Conocephalus conicus (l..) Dum. from MIBSOUTT:: 35:58 Sete etree eT eee etna clea et Ge yes 1 Mallinckrodt, Edward—Plants of Alaska................ 2 Roush, Eva M. Fling—Sidalcea sp. from horticulture.... 2 Saeger, A. C—Lemna from Missouri and Nebraska...... 4 By Exchange— Sofia University, by Prof. N. Stojanoff—Plants of Bulgaria 100 FLORAL DISPLAYS OF SPECIAL INTEREST IN 1930 In order that readers of the BULLETIN may have a more com- prehensive idea of the various flower shows and outdoor exhibits which from month to month may be seen at the Garden, the fol- lowing tentative schedule is given. While the indoor exhibits can be quite definitely indicated, the blooming period of outdoor plants is subject to variation, depending upon the weather, and out-of- town readers should confirm the date of any display before visiting the Garden. JANUARY FEBRUARY (Floral Display House) (Floral Display House) Orchids, Primroses, and First half month—Orchids. Cyclamen. Second half month—Cinerarias. MARCH APRIL (Floral Display House) (Floral Display House) March 8&-17—Bulb Show. Azaleas, Roses, Schizanthus. March 20-28—St. Louis Florists’ (Outdoors) Show. Pansies, English Daisies, Early- March 29—Azalea Show. flowering Shrubs. MAY (Floral Display House) Hybrid Pelargoniums, Salpiglossis, Begonias, Marguerites, Lupines, and other spring annuals. (Outdoors) Bulbs (early in month), Hardy Water-lilies, Peonies. Iris (late in month), Spring-flowering shrubs and perennials. JUNE (Outdoors) Roses, Hollyhocks, Medicinal Garden. JULY (Outdoors) Tropical plants. Annuals. Economic Garden—farm crops, fiber plants, rice, cotton, peanuts, tobacco, sugar-cane. Medicinal Garden. AUGUST (Outdoors) Tropical Water-lilies, Victoria Cruziana, Lotus lilies. Economic Garden. Medicinal Garden. SEPTEMBER OCTOBER (Outdoors) (Floral Display House) Tropical Water-liilles. Economic Dahlia (novelties and newer Garden. Medicinal Garden. varieties). NOVEMBER DECEMBER (Floral Display House) (Floral Display House) Chrysanthemum Show. Poinsettias, Stevias. SOME FACTS ABOUT THE GARDEN The Missouri Botanical Garden was opened to the public by Mr. Henry Shaw about 1860. From that date to the death of Mr. Shaw, in 1889, the Garden was maintained under the personal direction of its founder, and, while virtually a private garden, it was, except at certain stated times, always open to the public. Although popularly known as “Shaw’s Garden” the name Missouri Botanical Garden was designated by Mr. Shaw as its official title and in his will or in any of his writings he specifically referred to it as the “Missouri Botanical Garden.” By a provision of Mr. Shaw’s will the Garden passed at his death into the hands of a Board of Trustees. The original members of the Board were designated in the will, and the board so constituted, exclusive of certain ex-officio members, is self-perpetuating, By a further pro- vision of the will, the immediate direction of the Garden is vested in a Director, appointed by the Board of Trustees. The Garden receives no income from city or state, but is supported entirely from funds left by the founder. The city Garden comprises 75 acres, where about 12,000 species of plants are growing. There is now in process of development a tract of land of over 1,500 acres outside the city limits which is to be devoted to (1) the propagation and growing of plants, trees and shrubs, designed for showing either indoors or outside, at the city Garden, thus avoiding the existing difficulties of growing plants in the city atmosphere; (2) gradually establishing an arboretum as well as holding a certain area as a forest reservation, with the idea that possibly at some future time this may become the new botani- cal garden. The Garden is open to the public every day in the year, except New Year’s Day and Christmas—week days from 8:00 a. m. until one-half hour after sunset; Sundays from 10 a. m. until sunset. The main entrance to the Garden is located at Tower Grove ave nue and Flora place, on the Sarah car line (No. 42). Transfer south from all intersecting lines. The Garden may also be reached by Bus Route No. 12, to which all other motorbus lines transfer. OF THE MISSOURI BOTANICAL GARDEN A + George T. Moorz, Director KATHERINE H, Leteu, Assistant.to the Director HERMANN VON Sonu, -Axton Hoastap, Jp., Pathologiat Pharmacognosist , JESSE M. GREENMAN, RoLanp V. LAGARDE, Curator of Herbarium Research Assistant ne: Epaar ANDERSON, Mitprep EB. Marrias, is Geneticist eG! , Research Assistant’ ° Ernest 8, REYNOLDS, . Rosert EB. Woopson,y Jr., . Physiologist >» Research Assistant rif Davip H. Linper, Newt C, Horner, Ghe » Mycologist : Libarian and Editor of Publications Grorer H. Prine, . \; Superintendent \ JOHN NOYES, ee ire ¥ Kou, » ese: . Consulting Landscape Architect } ‘ Floriculturist Exrnok ALBeets Linpss, Orchidologist i iW, F: LANGAN, hs A. P, BEIMANN; _ | J. H. KELboce, by > Trees and Shrubs ' Herbaceous and Nursery — J. Curak, : J. LANGAN, Exotics eon a Assistant Engineer A. Di Forrester, ’ ie, __ A. Pearson, Plant Recorder "Painter qos: AL VanLenrine, } Carpenter 5 GRAY hsp aca EXTENSION L. P, JENSEN, * D. MItres, { Arboriculturist ~) Orchida G. GoEDEKE, -.R. Ey Kissecx, Farm ae Ehgineer TROPICAL STATION, BALBOA, CANAL ZONE : AS A, Hunter, S29 C's : : ; Manager REPRESENTATIVE IN: EUROPE GuRNEY Wison, F. L.'S. MlssouRI IROTANICAL GARDEN [BULLETIN Vol. XVIII FEBRUARY, 1930 No.2 CONTENTS Page The Growing of Orchids from Seed he Nig gg BP hs RO a ee Control of the Bagworm .. pe ins Renae egy ape S| Spring Course in Gardening for Aibatease Sp ge thee ek ae PROPCS is Rae A RO a hat POR tae averse’ etie gine Statistical Information . . w Ak OSS Floral Displays of Special Tederege in 1930 ST. LOUIS, MO. 1930 Published Monthly, Except July and August, by the Board of Trustees 4 SUBSCRIPTION PRICE: ONE DOLLAR PER YEAR SINGLE COPIES TEN CENTS Qe BOARD OF TRUSTEES ee ' | QF THE MISSOURI BOTANICAL GARDEN THE ORIGINAL MEMBERS WERE DESIGNATED IN MR, SHAW’S WILL AND THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE EX-OFFICIO MEMBERS, IS SELF-PERPETUATING ‘4 President : | GEORGE C. HITCHCOCK ‘ aH 2 \ Vice-President SAMUEL C. DAVIS. 7H Second Vice-President DANIEL. K. CATLIN: “t L- RAY Carrer. - _ ALBERT. T. PERKINS, THOMAS S, MAFFirt, Pump C. SCANLAN, . Grore® T, Moore. Frep G, Zrinia. EX-OFFICIO MEMBERS GrorGce R. THROOP, Victor. J. MILLER, Chancellor of Washington University Mayor of the City of St. Lonis FREDERICK F. JOHNSON, ARTHUR THACHER, Bishop of the Diocese of Missouri President of The Academy of Science of St. Louis. ARTHUR A. BLUMEYER, President of the Board of Education of St. Louis t ‘ Dante. Breck, Secretary | ets Miltonia ria y \ V } j ‘ Cattleya Epidendrum DHL Seeds of different genera of orchids showing the characteristic structure of the seed coat. Magnified about 100 times. ‘OIN “LOW “aU ?) Tia “OAS “OSGL ST ALV' I] % Missoun Botanical Garden Bulletin Vol. XVIII FEBRUARY, 1930 No. 2 THE GROWING OF ORCHIDS FROM SEED Orchids, in the minds of many people, are represented by those tropical flowers, mostly from South America, which are some shade of lavender, and are of relatively large size,—the flowers of the well-to-do. This is true in some cases, although a large number of tropical species from South America, Africa, and the Asiatic regions are inconspicuous and indeed may not even be recognized as belonging to the orchid family. For the true lover of orchids there is no neces- sity of going to the tropics, since during the months from spring until fall he may make an excursion to neighboring woods or meadows and there have the good fortune to dis- cover, if they have not previously been exterminated by van- dals, the pink lady-slipper, the snake-mouth, or the white or purple fringed orchid. Occasionally in the late summer months the rattlesnake plantain, with its clusters of delicate flowers lifted on slender stems above the beautifully mottled leaves, will reward the orchid lover’s walk. Since home products are often little appreciated, or because wild orchids are not produced in the winter months when our desire for the most beautiful in the form of plant life is difficult to satisfy, the orchid greenhouse becomes a sort of earthly paradise. In going through the greenhouses at Gray Summit (pl. 8), where plants are growing luxuriously, or viewing the magnifi- cent flowers at the annual orchid show, it is difficult to realize the obstacles which frequently discouraged pioneers of the early nineteenth century and which to-day prevent many en- (29) 30 MISSOURI BOTANICAL GARDEN BULLETIN thusiasts from attaining the success they desire. The large orchid flowers of lavender, white, yellow, or intermediate shades, in such great demand by the orchid collectors, were originally obtained from the tropics where they grew at almost inaccessible heights on the trees in little-frequented regions. Thus few people had seen these plants in their natural en- vironment, and this fact added to the difficulty of the early growers. At the time when orchid growing was truly horticultural pioneering, attempts were made to grow species, which were subsequently found to be epiphytic or tree-inhabiting, in the same manner as terrestrial species. This inevitably resulted in the death of the plants. Sir Joseph Banks, the famous English traveler and explorer, noticing that the plants grew on trees where they obtained a free circulation of humid air and only a little food material in the nature of decomposed leaves and washings from the upper parts of the trees, at- tempted to grow the plants in individual wicker baskets sus- pended from the roof of the greenhouse. His experiments were partially successful, and little by little improvements were made on this method. In 1841 Paxton devised the plan of fastening the plants to a piece of wood by means of a brass wire, placing a little moss around the roots to furnish perma- nent moisture. While this method was used by him in the Duke of Devonshire’s greenhouses, nevertheless there con- tinued to be a number of failures. At this time it was thought that all plants coming from the tropics and near the equator were accustomed to a uniform climate of considerable heat, but Lindley, in 1830, pointed out that there was the addi- tional factor of high humidity to be considered. Consequently it became the practice to grow the plants under conditions of high heat and high humidity, but even then some plants fell by the wayside. The reason some plants thrived and others perished was finally explained in 1835, when Joseph Cooper, the gardener of the Earl of Fitzwilliam, discovered that some orchids were being suffocated in the air-tight and too-warm greenhouses, a fact that was amply substantiated by the observations of various explorers in the tropics of different parts of the world. Thus it was noted that in such widely separated places as the PLATE Orchid flower form for use in hybridizing. well-rounded and petals. (¢ ‘attleya form and Trianae ) showing desirable the Note the symmetrical, erect position of sepals Orchid flower (Brassocattleva Hyea) showing unde- sirable traits. The sepals and petals are narrow and show a tendency to recurve and thus to give a spidery effect. Mo. Bot \BOVE BELON\N months GARD. BULI PLATE 4 Orchid plant (Cattleya Orchid plant (Dendrobien old ya , Lriande ), bearing seed pod 10 months old. Phalaenopsis), bearing seed pods Ss MISSOURI BOTANICAL GARDEN BULLETIN 31 Peruvian Andes, the Khasia Hills in India, and the mountains of Java, even at the higher elevations where snow sometimes fell, beautiful orchid flowers were found. At last the reason for the lack of success in the culture of certain species of Cattleya and other genera was explained, and as a result greenhouses were soon divided into three categories, namely, the hot house, the temperate house, and the cool house. With the perfection of cultural methods and the corresponding in- crease in successful growers, there arose at the end of the nineteenth century a great demand for orchid plants and these were imported extensively by collectors in out-of-the-way places. Advantage was taken of the natural resting period of the plants during the dry season to send them back to the hor- ticultural establishments of Europe, especially of England. Here they arrived in large numbers, actually or apparently dead. An occasional rare or exceptionally beautiful form was recognized among the survivors of the multitude, and these were eventually to become the parents of the exquisite and highly developed hybrids of to-day. At first all attention was directed to the cultivation of the wild orchid species or natural hybrids, but Man was not for long content with Nature’s efforts, for as early as 1856 the first artificial hybrid made its appearance. It was a cross- between Calanthe Masuca and Calanthe furcata and was named Calanthe Dominyi in honor of its originator, Dominy. Three years later Dominy produced Cattleya Dominiana by crossing Cattleya maxima and C. intermedia. This appears to be the first Cattleya hybrid. The first hybrid Cypripedium to flower was also a cross made by Dominy, and this was ap- propriately named Cypripedium Harrisianum, for Dr. John Harris, a surgeon who pointed out to Dominy the feasibility of hybridizing orchids. A succession of hybrids followed, produced by Dominy and his successor, Seden, in the Veitch establishment in England. Later others carried on the work, not only crossing Cattleyas but species of other genera, such as Laelia, Cypripedium, Dendrobium, and Masdevallia, to say nothing of crossing two related but distinct genera. The mul- tiplication of hybrids has taken place at such a rapid pace that a filing system is needed to keep abreast of the times, there being something like 8500 registered hybrids all created 32 MISSOURI BOTANICAL GARDEN BULLETIN by the orchid breeder. Up to the present time, American orchid growers have been far behind Europe, and especially England, in the production of hybrids. The orchid family is divided into a large number of genera which comprise somewhat over 15,000 species, and yet each year, as new and even more inaccessible regions are explored and our knowledge increases, new species are being added. A great number of the flowers of orchid species are of only average beauty, while a considerable number, to one of criti- eal taste, are inferior and unworthy of further cultivation. Only very rarely is an individual flower discovered that pos- sesses great floral beauty. The species, furthermore, are very similar in coloration and, however beautiful, are monotonous when cultivated in large numbers. The orchid hybrid is, in a sense, a creation having no counterpart in nature, possess- ing exceptional size, beautiful form, and entirely different and marvelous colors. The reason for this, providing the erosses are intelligently made, becomes obvious when it is realized that the hybridizing of allied species or even allied genera gives greater chances for variation in the resulting offspring. This is most clearly shown in the horticultural genus Potinera which combines the characters of Brassavola, Laelia, Cattleya, and Sophromtis. As a result of all this work, there are today, in addition to the popular lavender color, varieties with a wide range of very deep lavenders and intense purples, blue-lavender, bronze, orange, light and dark yellow, saffron, flesh tints, pink, pure white, and white with richly colored lips. Not only have the colors been somewhat changed or blended, but the shape has also been altered. In the wild species the petals are not infrequently narrow and strap-shaped, or if they are broad have some objectionable trait, such as recurving or drooping, or lack of texture. This last character, if it be transmitted to the hybrid offspring, makes the flower short lived. The commercial growers, in addition to requiring flowers that last, desire plants of great vitality that are easily grown and which possess the free-flowering habit. Those who grow orchids as a hobby, while recognizing the value of the preceding char- acteristics, aim also for perfection in form. To fulfill the requirements, the flowers should not have a spidery appear- Mo. BoT. GARD. BULL., VoL. 18, 1930. PLATE 5, ABOVE: Dendrobium hybrid seedlings, 4 months old. BELOW: Cymbidium hybrid seedlings, transplanted, 5 months old. 6 PLATE (JARD. SsOW- ) ) hybrid rassocattleya 47 he ee PE AEA Se EEF ave in bi ; - = Y MISSOURI BOTANICAL GARDEN BULLETIN 33 ance. The petals should be so arranged as to fill the spaces and thus balance and make a symmetrical background for the ornamental and frequently brilliantly colored lip (pl. 3). To approach perfection in the offspring, the selection of both parents, as has already been intimated, is of utmost im- portance, since in many cases-undesirable traits appear to be dominant while surpassing beauty is recessive and occa- sionally may be lost unless reinforced by the other parent. For example, it is recognized that certain parents take on or impart color more readily than others, while still others take on or impart poor form or poor lasting quality. Occasion- ally, when comparatively mediocre stock is used for hybridiz- ing, surprising results are obtained, due probably to the out- cropping of recessive factors, but nevertheless a great propor- tion of success is to be expected when parents of finest quality are selected. With multi-generic hybrids, the chance for sur- prises is greatly increased, and this is what adds zest and fascination to the game of raising orchids from seeds. A parallel may be drawn from animal breeding. For example, in breeding race-horses, one would not go into a pasture and choose indiscriminately the parents of a future Derby winner. The chances are that instead of a Man 0’ War, a Spark Plug would be the outcome. However, the horse fancier has an advantage since the result of his breeding experiment becomes evident in two or three years, while the orchid grower must often wait six or seven or even ten years. From the beginning of fertilization, approximately one year is required to obtain the mature seed pod (pl. 4), but the time may vary from six to eighteen months, depending on the species involved. Not infrequently, after the pod has matured, it will be found to contain nothing but sterile seed or chaff. The percentage of fertile seed, for some unknown reason, varies, even with the same parents, although there appears to be a positive correlation with the complexity of the crosses. The resulting fertile seeds are very minute (pl. 2), something like 30,000 being required to weigh as much as a single grain of wheat. The embryo contains very little reserve food mate- rial—insufficient to permit the seedlings to become well es- tablished unless the environment is most favorable for germi- nation and growth. It is therefore evident that environmental Oe BS ee ae ee 0 ex Te? tea 34 MISSOURI BOTANICAL GARDEN BULLETIN factors are important in determining the distribution and occurrence of the species in nature. Probably not more than one in a million of the seed produced results in a mature plant. Under artificial cultivation it is even more important that favorable conditions be maintained. The early history of raising orchids from seed is full of more or less accidental discoveries. As a result of a series of scattered observations it became the custom to sow the seeds at the base of the parent plant, for it was evident that seeds thus sown germinated far better than those sown on a similar substratum that had not been in contact with the parent. The significance of these results was not appreciated until the end of the nineteenth century, when Wahrlich called attention to the fact that the roots of five hundred representatives of the orchid family, taken at random, all contained a fungus. Later Noel Bernard, who had made unsuccessful attempts to germinate the seeds of Neottza, the bird’s-nest orchid of Eu- rope, discovered during one of his field trips that the seed capsules of this species bent toward the ground and discharged the seeds upon the soil in the vicinity of the parent plant. These seeds had germinated and later when examined in the laboratory were found to be infected by a fungus. The pres- ence of the fungus seemed to explain the relatively frequent success of the old method of germinating the seed in the vicin- ity of the parent. The next step was to attempt to isolate the fungus, but this did not meet with immediate success. Although a fungus was isolated by Bernard and others, it was subsequently shown by Gallaud in 1894 to be not the true orchid fungus, but one not involved in the germination of the orchid seed nor in the welfare of the mature plant. After the publication of Ber- nard’s paper, a controversy arose as to the necessity of the fungus. Some persons claimed to have had success without it, but when such cases were examined carefully it was found that only those seed germinated which had become infected by the fungus. It was later disclosed that those who had claimed success without the fungus had in reality infected the composts with the fungus from the roots. Thus the hit- or-miss fashion of sowing seeds at the base of the parent plant was succeeded by the method of sowing seed on Turkish towel- Mo. Bot. GARD. BULL., VOL. 18, 1930. PLATE 7. ABOVE: Phalaenopsis hybrid seedlings in one-inch pots, 10 months old, BELOW: Dendrobium hybrid seedlings in one-inch pots, 2 years old, Mo. Bot. GARD. BULL. 5, 1930. PLATE 8, ae aie E «= ABOVE: Interior of seedling house No, 5, at Gray Summit, showing hybrid seedlings in one- and two-inch pots. On the two left-hand benches, interesting although not always conspicuous, tropical orchids are growing. hybrid seedlings in three- and four-inch pots. The two right-hand benches contain orchid seedlings in four-inch pots. These will bloom in two or three years. BELOW: Interior of seedling house No. 2, at Gray Summit, showing MISSOURI BOTANICAL GARDEN BULLETIN 35 ling or burlap that had been stretched over the surface of compost containing orchid roots. This method is often used to-day, even though the seedlings are liable to contamination by highly destructive fungi. While Gallaud was the first to isolate the true orchid fungus, Bernard in 1903 led the way in the successful germination of orchid seeds in the presence of the fungus, on artificial media and in flasks, Later, in 1909, Hans Burgeff published the results of his successful experiments in which he employed essentially the same methods as Bernard. The use of flasks was a distinct advance over the old methods, since attacks by parasitic fungi and insects were avoided and the air about the seedlings could be maintained at a more even degree of humidity. In recent years another method, known as the asymbiotic method of germination has been developed by Knudson and others. It receives its name from the fact that seeds are suc- cessfully germinated without the aid of fungi. This is in contrast to the symbiotic method in which fungi are employed. As a result of this development, two contending schools have arisen—the one claiming that the presence of the fungus is not necessary ; the other contending that although the fungus is not necessary when proper sugars and other nutrient ma- terials are supplied in sufficient quantities and in the right proportion, nevertheless the seedlings grow more rapidly and are more robust when the fungus is present. Furthermore, this second school believes that the symbiotic method more nearly duplicates the natural process. Which school may eventually prove to be correct remains for the future to de- cide, but it seems that if logical conclusions be derived from the ample evidence of many experiments and observations in the field, the symbiotic relation of fungus and host is a foregone conclusion. In the work at the Garden, both methods are employed. The minute seeds are sown in flasks upon a specially prepared jelly containing nutritive salts. When the symbiotic method is used germination becomes evident within three or four days by the seeds turning green. The first leaf and a lux- uriant growth of hair roots develop within one to three months (pl. 6, upper figure). The seedlings are then trans- oo 36 MISSOURI BOTANICAL GARDEN BULLETIN planted to another flask where they are allowed to remain until the root system is well established (pl. 5). This requires from five to six months. They are next potted in fern fibre in one-inch pots (pl. 7), carefully watered, kept in a humid atmosphere at a suitable temperature, shaded from the direct rays of the sun, and sprayed to discourage attack by insect pests and infection by fungi. At this critical period, the per- centage of loss is about one per cent. After the seedlings outgrow the one-inch pots they are transplanted into a suc- cession of larger ones (pl. 8) at varying intervals until at the age of six to ten years the plants mature and bloom, at which stage they are usually in five-inch pots. The asymbiotic method, while having its use under certain conditions, is much slower than the preceding method. Ger- mination takes place, instead of within three to four days, only after ten days to six weeks, depending on the species or varieties from which the seeds are obtained. However at no time during the first two to three years of growth do these seedlings become as vigorous as do those grown by the symbi- otic method. The root system is slow in developing and the percentage of fatalities upon removal from the flask is gen- erally very high. Success in growing orchids from seeds, or even in growing the mature plants, depends largely upon the amount of care given to the plants. Over-enthusiastic beginners frequently make the mistake of killing the plants by kindness, which may be evidenced by too much watering, too little or too much sunshine, or other factors. Only through experience and continued observation can the requirements of the plants and an understanding of their needs be learned. E. A. L. CONTROL OF THE BAGWORM In the March, 1921, BuLuerin there appeared an article under the title ‘‘Bagging the Bagworm’’ which gave direc- tions for controlling this pest. This number of the BULLETIN has long been out of print but the demand for information concerning the bagworm is great enough to warrant reprint- A a ye ae Le Gree ss: Daa) MISSOURI BOTANICAL GARDEN BULLETIN 37 ing the major portion of the article, bringing it up to date in so far as remedial measures are concerned. While the bagworm has been more or less prevalent in St. Louis for a number of years, the unusual number of these pests last spring, with the resulting cocoons, makes it prob- able that a considerable amount of damage to the trees may be anticipated during the coming season unless some syste- matic campaign is devised against them. The curious habit of the caterpillar of crawling about in a bag-like case makes it unusually conspicuous, and there are few trees in the city on which a careful inspection will not reveal, attached to the twigs, the old female bags, within which are the eggs for this spring’s crop of caterpillars. The bagworm is often the most serious leaf-chewing pest of ornamental evergreens, attack- ing also nearly all of the deciduous trees and shrubs. Immediately upon the hatching of the eggs the young cater- pillar makes its way to the nearest leaf, where it begins to feed and construct a bag for itself. This bag consists of small fragments of leaves and bits of twigs held together by a large amount of silk spun by the caterpillar. The construe- tion of this bag by the young larva is extremely interesting and well worth observing. Because of the soft body of the larva, the protective bag is needed throughout its existence, and as the caterpillar grows the case is constantly enlarged. About the end of August the caterpillar completes its growth and the bag is promptly attached to a twig. Additional layers of silk are spun within the bag, forming a cocoon, and here the transformation to the pupal stage takes place. In about three weeks after the cocoon is formed the male moth emerges from the base of the bag and flies about seeking the female. The female moth never leaves the bag entirely, although the head emerges from the lower end. Fertilization takes place within the bag, after which the female gradually works her way back into the chrysalis, which she then nearly fills with eggs. After accomplishing this the female forces her body through the opening in the bag, falls to the ground and dies. Damage.—While the chief damage from this worm is of course the defoliation of the tree, an investigation of the effect of the construction of twigs by the bagworm, published in the Seventeenth Annual Report of the Missouri Botanical 38 MISSOURI BOTANICAL GARDEN BULLETIN Garden by Dr. Hermann von Schrenk, showed that the pres- sure exerted by the silken bands on twigs of coniferous trees was sufficient to cut off the food supply and that practically no growth took place in the twig on the sides below the bands. The portion of the twig above the band continued to grow for a considerable period, but that ultimately considerable damage might occur in coniferous trees seemed to be prob- able. In the hardwood trees investigated, with the exception of the locust, the pressure of the band was never great enough to obstruct the passage of elaborated food material. The strength which some of these bands showed was very consid- erable. The growth energy exerted by the twig, necessary to burst the band, of course varied very much with the strength of the individual band, but actual measurements showed that as high as 162 atmospheres was exerted in one case, and it is probable that in many eases at least from 30 to 40 atmospheres pressure was produced. Collecting the Bags.—Since the eggs of the caterpillar are carried over the winter in the bag, the collection and destruc- tion of these bags before the time of hatching is the most natural method which suggests itself of eradicating the worm. On small trees which can be thoroughly gone over with the aid of a short ladder, or by the use of a light pole pruner, such a method is recommended, provided all of the bags can be removed. However, unless this can be accomplished for all the trees, both large and small, over a very considerable area, results may be more harmful than beneficial, for the reason that at the time the eggs of the bagworm are destroyed the natural enemies of the caterpillar are likewise obliterated. Various flies which breed within the bag of the bagworm are parasitic upon the caterpillar and under favorable conditions are a very important factor in preventing the rapid spread of this pest. Consequently everything should be done to encourage the growth of the parasites. Of course, if only a small number of the bags is collected, the beneficial para- sites which are destroyed might have ultimately been more effective than the elimination of comparatively few bagworm eggs. It is therefore advisable to keep the hand-picked bags in some sort of a receptacle instead of burning them. If a barrel is used for this purpose it should be covered with a pe ee ee mayor? MISSOURI BOTANICAL GARDEN BULLETIN 39 wire netting which will confine the caterpillars as they hatch out but will permit the numerous parasites to escape and be ready to assist in the control of the bagworms the following year. In general, then, the collecting of the bags is effective only where a comparatively few trees are infected, and it is not likely to be of much benefit when the pest is so widespread as it was in St. Louis during the past season. A striking ex- ample of the futility of this method is given by the late Pro- fessor C. V. Riley. He stated that for two consecutive months he worked attempting to keep a single cedar tree, not more than six feet high, free from caterpillars. Almost every day he found fresh specimens which he had overlooked at the pre- vious visit, and he estimated that this prodigious number of caterpillars was the progeny of not more than two females. Spraying.—Wherever appliances, capable of reaching all parts of a tree, whatever its size, are available, there is no question but that the use of some arsenical spray offers the only adequate means of combating the bagworm. If carefully carried out spraying will result in the destruction of all the bag-manufacturing caterpillars so that in the following win- ter there will be no bags to collect. Paris green has been used with good effect for this purpose, but powdered arsenate of lead, because of its great adhesiveness which prevents its being easily washed off by rains, is the poison generally employed. Any standard, well-known brand will be found satisfactory provided it contains not more than .05 per cent of water-soluble arsenic. Larger amounts cause burning of tender foliage. When mixing a spray for a few trees or shrubs it is advis- able to follow the maker’s directions on the label, remember- ing to use the maximum rather than the minimum as sug- gested, especially if the caterpillars are nearly full grown. Most brands of arsenate of lead will give good control if one pound is mixed with each twenty gallons of water. To this solution should be added either calcium ecasenite or a miscible oil, obtainable at local seed companies (one gallon to two hun- dred gallons of water), to insure even distribution and adher- ence of the poison. The kind of sprayer, the season, and the efficiency of the operator, will all affect the amount of mate- rial necessary for any tree or shrub. Sufficient arsenate of ake 40 MISSOURI BOTANICAL GARDEN BULLETIN lead should be purchased to permit refilling the sprayer tank again and again until the trees or shrubs have been entirely covered. For medium-sized shrubs perhaps one-half gallon each will be enough. A tree ten feet high, having a spread of ten feet, may require three gallons. Later in the season these amounts may be doubled. In using a small hand-pump enough pressure should be maintained to produce a fog-like mist. Much more beneficial results can be obtained with this mist spray; a coarse spray forms heavy drops which run off. Both upper and lower surfaces of every leaf should be cov- ered to give effective control. Time of Spraying.—Owing to the great variation in the time at which trees leaf in different seasons, it is impossible to give any definite date on which the spraying should begin. The best rule is to begin to spray as soon as possible. after the pest is first noticed. Much less spray is needed when the leaves are small and the young caterpillars are more quickly killed. Furthermore, it is extremely desirable to destroy the pest before serious damage to the young foliage is done. The amount of arsenic necessary to kill a full-grown caterpillar apparently varies greatly. It has been estimated, however, that a quantity of the powder equal to 1/4000 of the body weight of the caterpillar will stop its feeding in an hour or two and kill it in a few days. Even though poisoned eater- ae appear to recover, they often fail to pupate success- ully. SPRING COURSE IN GARDENING FOR AMATEURS The success of the special courses in gardening for amateurs in 1929 warrants the offering of a new course this spring. The following outline indicates the general content of the course although changes may be made later to meet the spe- cial needs or desires of those constituting the class. The work will consist of talks, demonstrations and, as far as may be possible, the actual use of plant materials. While the course may be regarded as elementary, it is hoped that any who took the work last year will be able to find enough that is new to warrant their joining the course for the second season. on ipa eee RL eb tet en men ema a ty Pheri MISSOURI BOTANICAL GARDEN BULLETIN 41 Those who may have had no previous course of this kind would be able to follow the work without difficulty. Registration.—While no previous notice of intention to join the course is necessary, it would be advisable to notify the Garden office by letter any time before March 4. Registra- tion will take place at the administration building, 2315 Tower Grove Ave., on Tuesday, March 4, at 3:45 p. m. The subse- quent meetings will be held at the same hour on the dates indicated. Fees—A fee of $5.00 payable at the time of registration will be charged. ELEMENTARY GARDENING Tuesdays, 3:45 p. m. March 4—Gardening books. Catalogues. Bulletins. Magazines. March 11 | Masaz care of plants including principles of growth. | Soils and fertilizers. March 18—Omitted on account of spring flower show. Growing plants from seeds. March 25— 4 Sowing seeds, transplanting, subsequent care. | Propagating plants by cuttings. April 1—Roses and irises, April 8—Gladiolus, dahlias, bulbs, peonies. April 15—Trees and shrubs and their care. April 22—Annuals and perennials. April 29—Hanging baskets, window boxes, trained ivies and philodendrons. House plants and their care. May 6—Insects and diseases and their control. May 13—General discussion of gardening problems. NOTES Mr. George H. Pring, Superintendent of the Garden, ad- dressed the Cosmopolitan Club, January 21, on “The Activ- ities of the Missouri Botanical Garden.” Dr. George T. Moore, Director of the Garden, attended a meeting in Chicago of the science advisory committee of the Chicago World’s Fair Centennial Celebration, of which he is a member. 42 MISSOURI BOTANICAL GARDEN BULLETIN Dr. E. 8. Reynolds showed motion pictures of plant life at the joint meeting of the Washington University chapter of Sigma Xi and the St. Louis Academy of Science) held at Reb- stock Hall, Washington University, February 20. Mr. L. P. Jensen, Arboriculturist to the Garden, gave an illustrated lecture before the St. Louis chapter of Alpha Chi Sigma, national chemical fraternity, February 10, at the War- wick Hotel, on ‘‘The Evolution of Landscape Art.’’ At the January meeting of the St. Louis Horticultural So- ciety Mr. Anton Hogstad, Jr., Pharmacognosist to the Garden, spoke on ‘‘ Vegetable Drugs’’; and at the February meeting Mr. Paul A. Kohl, Floriculturist to the Garden, gave an illus- trated talk on ‘‘Plant Germination from Seed.’’ Among the recent visitors to the Garden were Dr. L. H. Pammel, professor of botany, Iowa State College; Dr. Dow V. Baxter, assistant professor of forestry, University of Michi- gan; Mr. John C. Wister, president of the American Iris Society; Mr. C. C. Deam, state forester of Indiana; and Mr. F. E. Dixon, of Philadelphia. Prof. A. T. Erwin, chief of the vegetable crops section at Iowa State College and a graduate of the School for Garden- ing of the Missouri Botanical Garden, was elected president of the American Society for Horticultural Scientists at a meet- ing of the society in Des Moines recently. The American So- ciety for Horticultural Scientists is a professional society for research workers and professors of horticulture in the United States and Canada. Mr. George H. Pring, Horticulturist to the Garden, and Dr. Robert E. Woodson, Jr., Research Assistant to the Garden, have left on a trip to The Tropical Station of the Missouri Garden at Balboa. The object of Mr. Pring’s visit is a gen- eral inspection of the plants at the Station. Dr. Woodson is on a collecting trip for herbarium specimens and living plants of orchids, representing all possible species of the region. i oe MISSOURI BOTANICAL GARDEN BULLETIN 43 STATISTICAL INFORMATION FOR JANUARY, 1930 GARDEN ATTENDANCE: PLGUAM ADU DOD OL VASLLOLS arc « wic.c are aisiecercie obolarareae ecole alee eat one's 13,752 LIBRARY ACCESSIONS: Total number of books and pamphlets bought........... 199 Total number of books and pamphlets donated.......... 56 PLANT ACCESSIONS: Total number of packets of seed donated................ 33 HERBARIUM ACCESSIONS: By Purchase— Herter, Dr. Guillermo—Plants of Uruguay.............. 103 Jones, Prof. Marcus H.—Plants of Arizona............... 325 Purpus, Dr. C. A—Plants of Mexico...........cceccccecs 50 Samuelsson, Dr. G.—Plants of Brazil, collected by Dr. P. IDUBGIIM Ss erek fee eas teiriely necks aoe s etic wretete lore Ge re 178 By Exchange— House, Dr. Homer D.—Plants of New York............. 100 Jennison, Prof. H. M.—Plants of Tennessee...........6. 6 University of California, by Prof. E. B. Copeland—Plants ol, California, 6tCig.s sec ios Maks oes iets Clete he vis een mites 238 FLORAL DISPLAYS OF SPECIAL INTEREST IN 1930 In order that readers of the BULLETIN may have a more com- prehensive idea of the various flower shows and outdoor exhibits which from month to month may be seen at the Garden, the fol- lowing tentative schedule is given. While the indoor exhibits can be quite definitely indicated, the blooming period of outdoor plants is subject to variation, depending upon the weather, and out-of- town readers should confirm the date of any display before visiting the Garden. JANUARY FEBRUARY (Floral Display House) (Floral Display House) Orchids, Primroses, and First half month—Orchids. Cyclamen. Second half month—Cinerarias. MARCH APRIL (Floral Display House) (Floral Display House) March 1-17—Bulb Show. Azaleas, Roses, Schizanthus. March 20-23—St. Louis Florists’ (Outdoors) Show. Pansies, English Daisies, Early- March 29—Azalea Show. flowering Shrubs. MAY (Floral Display House) Hybrid Pelargoniums, Salpiglossis, Begonias, Marguerites, Lupines, and other spring annuals. (Outdoors) Bulbs (early in month), Hardy Water-lilies, Peonies. Iris (late in month), Spring-flowering shrubs and perennials. JUNE ° (Outdoors) Roses, Hollyhocks. Medicinal Garden. JULY | (Outdoors) Tropical plants. Annuals. Economic Garden—farm crops, fiber : plants, rice, cotton, peanuts, tobacco, sugar-cane. Medicinal Garden. AUGUST (Outdoors) Tropical Water-lilies, Victoria Cruziana, Lotus lilies. Economic Garden. Medicinal Garden. SEPTEMBER OCTOBER (Outdoors) (Floral Display House) Tropical Water-lilles. Economic Dahlia (novelties and newer Garden. Medicinal Garden. varieties). NOVEMBER DECEMBER (Floral Display House) (Floral Display House) Chrysanthemum Show. Poinsettias, Stevias. Nie a al TEEN a SO ee a ene Tk SOME FACTS ABOUT THE GARDEN The Missouri Botanical Garden was opened to the public by Mr. Henry Shaw about 1860. From that date to the death of Mr. Shaw, in 1889, the Garden was maintained under the personal direction of its founder, and, while virtually a private garden, it was, except at certain stated times, always open to the public. Although popularly known as “Shaw’s Garden” the name Missouri Botanical Garden was designated by Mr. Shaw as its official title and in his will or in any of his writings he specifically referred to it as the “Missouri Botanical Garden.” By a provision of Mr. Shaw’s will the Garden passed at his death into the hands of a Board of Trustees. The original members of the Board were designated in the will, and the board so constituted, exclusive of certain ex-officio members, is self-perpetuating. By a further pro- vision of the will, the immediate direction of the Garden is vested in a Director, appointed by the Board of Trustees. The Garden receives no income from city or state, but is supported entirely from funds left by the founder, The city Garden comprises 75 acres, where about 12,000 species of plants are growing. There is now in process of development a tract of land of over 1,500 acres outside the city limits which is to be devoted to (1) the propagation and growing of plants, trees and shrubs, designed for showing either indoors or outside, at the city Garden, thus avoiding the existing difficulties of growing plants in the city atmosphere; (2) gradually establishing an arboretum as well as holding a certain area as a forest reservation, with the idea that possibly at some future time this may become the new botani- cal garden. The Garden is open to the public every day in the year, except New Year’s Day and Christmas—week days from 8:00 a. m. until one-half hour after sunset; Sundays from 10 a. m. until sunset. The main entrance to the Garden is located at Tower Grove ave. nue and Flora place, on the Sarah car line (No. 42). Transfer south from all intersecting lines. The Garden may also be reached by Bus Route No. 12, to which all other motorbus lines transfer. STAFF: | _ OF THE MISSOURI BOTANICAL GARDEN GrorGE T. Moore, Director By 4 KATHERINE H. LEreH, - Assistant to the Director HERMANN VON SCHRENK, ANTON Hoastap, Jr., ».~ Pathologist Pharmacognosist JEssE M, GREENmAN, RoLanp V. LAGARDE, — Curator of Herbarium Research Assistant Epear ANDERSON, ‘Mriprep E. Marutas, Geneticist : Research Assistant Ernest S, REYNOLDS, ey Rosert E. Woopson, Jr., Physiologist ae Research Assistant Davip H. LInpDER, NELL C. Horner, » Mycologist Librarian and Editor of Publications GrorcE H, Prine, md Superintendent f JoHn Noyes, Paut A, Kont, Consulting Landscape Architect Floriculturist ELINOR “ALBERTS LINDER, Orchidologist W. F. Langan, © , Chief Engineer. A. P, BEILMANN, » ‘ J. H. KEi1oae, Trees and Shrubs Herbaceous and Nursery J. Curak, J. LANGAN,. Exotics . Assistant Enginéer A.D, FoRRESTER, 5) A. PEARSON, | ‘Plant Recorder s) Painter H, VALLENTINE, Carpenter’ ny GRAY SUMMIT EXTENSION “LP, JENSEN, re Ds Mittra 6 Arborieulturist ‘ Orehids G. GorpeKn, »« .RyE. Kissecr, | Farm ; Wngineer TROPICAL STATION, BALBOA, CANAL ZONE A’ A. Hunter, Manager j = iG REPRESENTATIVE IN EUROPE wee GuRNEY WILson, F; LS. ~ Missouri BoraNIcAL GARDEN BULLETIN Vol. XVIII MARCH, 1930 No. 3 CONTENTS The Pruning of Ornamental Trees and Shrubs . . . . 45 A Plant that Stopped Navigation... 2.9... ...48 - Frozen Hedges. and Shrubs. . J 0.0.0.0... 51 PRIDE NG is eh ip ok Se a ISN 7 cay a ea Poe Cag Cet ckey stg Se Statistical Information . 9.0. s+... Ne Saiee f=: Floral Displays of Special Interest in 1930 1 ST. LOUIS, MO. 1930. Published Monthly, Except July and August, by the Board of Trustees SUBSCRIPTION PRICE: ONE DOLLAR PER YEAR SINGLE COPIES TEN CENTS BOARD OF TRUSTEES OF THE MISSOURI BOTANICAL GARDEN THE ORIGINAL MEMBERS WERE DESIGNATED IN MR, SHAW’S WILL AND THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE EX-OFFICIO MEMBERS, IS, SELF-PERPETUATING President GEORGE C, HITCHCOCK : Vice-President SAMUEL C. DAVIS. Second Vice-President DANIEL K, CATLIN, L. RAY CARTER. ALBERT T. PERKINS. THOMAS ‘S. MAFFITT. | Puiu C. SCANLAN, GEORGE T. Moore. FRED G. ZEIBIG, EX-OFFICIO MEMBERS GmorGE R. THROOP, Victor J; MILLEr, Chancellor of Washington University “Mayor of the City of St. Louis FREDERICK F. JOHNSON, ALYRED F, SATTERTHWATI, Bishop ‘of the Diocese of Missouri. . President of The Academy of Science | of St, Louis ARTHUR A. BLUMEYER, President of the Board of Education of St. Louis DANIEL Breck, Secretary Mo. Bor. Garp. BuLL., Vou, 18, 19380 PLATE 9 ‘ .. OLD VIBURNUM IN NEED OF RENEWAL PRUNING. Shoots at “.\" to be removed the first spring, those at “B” the following year. Missoun Botanical Garden Bulletin Vol. XVIII MARCH, 1930 No. 3 THE PRUNING OF ORNAMENTAL TREES AND SHRUBS The removal of any growth from a tree or shrub might be considered pruning; yet many distinct kinds may be recog- nized. Some pruning is adapted to shrubbery only, some to ornamental trees, still other kinds to fruit trees and bush fruits. Then there is topiary work in formal gardens and lastly ‘‘tree butchery.’’? This article is concerned chiefly with the pruning of ornamental trees and shrubs. Success in pruning will be proportional to the gardener’s ability to co-operate with Nature. In every group planting the individuals are constantly struggling for light and food, and when the buds are shaded by their faster growing neigh- bors they cannot obtain light and food and consequently die. The same competition exists between the buds on the branches, and usually but one or two survive to continue the growth of a particular branch. A tree or shrub produces many more buds than ean ever grow into mature branches. The majority remain undeveloped and grow only when an emergency arises, but each single bud is capable of reproducing an entire plant if necessary. This ‘‘shading out’’ is Nature’s way of prun- ing—a method which has produced the giants of our forests. Cultivated ornamentals cannot be permitted to follow such a method. The ‘‘specimen’’ tree or shrub on a lawn will have many lower branches nearly touching the ground. If planted in a group, it must accommodate itself to the limited space, and may not have one branch near the ground. Before attempting to prune, allowance must be made for (45) 46 MISSOURI BOTANICAL GARDEN BULLETIN this constant struggle. Consideration should be given to the age and vigor of the plant, the available moisture and food, the presence of buildings or other trees and shrubs which might shade it, and especially the pruning which it has already received. No hard and fast rule ean be given for the pruning of any particular shrub because of the many varied condi- tions under which it will be found growing. For most shrubs a system of ‘‘renewal’’ pruning is all that is necessary. This consists of removing the older stems, those that are too old to bloom profusely (plate 10), leaving more room for younger and more vigorous shoots, which may with some shrubs begin to flower in two years. This method applies only to shrubs having the same flowering habit, as the mock-orange (Phila- delphus), deutzia, nine-bark (Physocarpus), and dogwood (Cornus). All of these bear flowers on the older wood on short lateral branches formed the current year. Established plantings of bridal-wreath (Spiraea) and snow-ball (Vibur- num) will require little or no pruning. Very old plants may be much improved by ‘‘renewal’’ pruning (plates 9-11) if it is extended over two or more years. Hydrangea panicu- lata and other shrubs which produce flowers on the new growth will require severe cutting back each year. Choke-cherry (Aronia), dwarf buckeye (Aesculus), and Kerria produce flowers on the tips of new wood, and require only the removal of dead wood. Lilac (Syringa) will not be killed by severe cutting back, but flowering will be much delayed. Basal shoots should not be permitted to grow unless the plant is on its own roots, and ordinarily little pruning is necessary. Before pruning the flowering habits of the shrubs should be learned. PauL A. Koxwr, Consulting Landscape Architect Floriculturist Evinor ALBerts LInDER, Orchidologist W._F. Lanean, Chief Engineer A. P, BEILMANN, J. H. KetLoaa, Trees and Shrubs Herbaceous and Nursery J. Curax, . J. Langan, Exotics Assistant Engineer A. D. ForReEsTER, A. PEARSON, | Plant Recorder Painter _ H. VALLENTINE, Carpenter , GRAY SUMMIT EXTENSION L. P, JENSEN, : D. MILteEr, Arboriculturist ; Orchids is G. GorDeKr, R. E. Kissecx, Farm Engineer TROPICAL STATION, BALBOA, CANAL ZONE A, A. HUNTER, Manager \ REPRESENTATIVE IN. EUROPE ’-. GurNEY Wizson, F. L. 8. : e Joun NoyEs. ~ Paut A, Kout,: r Consulting Landscape Architect Ploriculturist } Etinor ALBerts Linper, | , “ Dane * Orchidologist,- if Wa Fc LAngan, 0). f . > «Chief Engineer A) P, BEILMANN, > pO. VaR Eoaeekega, : | Trees and Shrubs ‘ 2.7 Herbaceous and Nursery Cranes, te ‘J. Curak; < Jo Langan, © |; eye res Exotics _ Assistant wagitcer er rand hgs’ ee A. D. Forrester,“ Meg Mb Yee ee PEARSON, \ ~ Plant Recorder ; z Painter Ps |. HL VaLLenting, 1 fects , Carpenter : rex ; GRAY SUMMIT EXTENSION’ Rau ie 7 L.'P. Jensen, — ¢ D. MILLER, : aie Arboricultyrist «- Orehids 0 ~ a Mo eee G. GOEDEKE, y . &R, EY Kissecx, bas Farm ; } Engineer ‘ SH es TROPICAL STATION, BALBOA, CANAL ZONE~ Co Ls ea A. A. HUNTER, Manager SS REPRESENTATIVE IN EUROPE GURNEY WILSON, F. LS. ‘Missouri Botanica, - GARDEN BULLETIN. — Vol. XVITI MAY, 1930 CONTENTS The Dogbane: Roadside Weed and Future Staple . Statistical Information. . Floral Displays of Special Interest.in 1930 No. 5 Page peed | 5 » - 104 5-409 ST. LOUIS, MO. Published Monthly, Except July and August, by the Board of Trustees SUBSCRIPTION PRICE: SINGLE COPIES TEN CENTS ONE DOLLAR PER YEAR BOARD OF TRUSTEES OF THE MISSOURI BOTANICAL GARDEN THE ORIGINAL MEMBERS WERE DESIGNATED IN MR, SHAW’S WILL AND THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE EX-OFFICIO MEMBERS, IS SELF-PERPETUATING President GEORGE ©: HITCHCOCK Vice-President SAMUEL °C. DAVIS. ie \ (Se aa ‘Second. Vice-President _ DANIEL K, CATLIN, | if L. Ray CARrmr. Lee ALBERT T. PERKINS. Tuomas S, Marrirr, PHiLip C. ScaNLAN, Bey : GEORGE T, Moore. Renan A, H. SHEPLEY. Frep G. ZEia. EX-OFFICIO MEMBERS bs: bi -Gronor R. THROOP, ~ ‘Vieror J. MILLER, ; Chancellor of Washington University Mayor of the City. of St. Louis : ak FREDERICK F. JoHNSON, ALFRED F, SATTERTHWAIT, Bishop of the Diocese of Missouri President. of The Academy of Science ret ‘ of St. Louis a oe - ARTHUR A, BLUMEYER, Ta ei : ” President. of the Board of Education of St. Louis DANIEL BrecK; Secretary NEAR CARONDELET, * APOCYNUM CANNABIN UM, “LOU “ON ro) "TTAG ‘auv IOA ' ST Otol LV Id br Missouri Botanical Garden Bulletin Vol. XVIII MAY, 1930 No. 5 THE DOGBANE: ROADSIDE WEED AND FUTURE STAPLE. Little does the farmer suspect, as he patiently plows through the patches of hated ‘‘dogbane’’ or ‘‘Indian hemp’’ ever spreading and choking out the grain upon his unproduc- tive soil, that he is actually engaged in cultivating a plant which may prove to be a future staple—a plant of many varied economic uses. If one were to warn him that instead of exterminating the weed he is actually giving it a still greater lease on life, he would scarcely believe it. And if he were told that, properly appreciated, the weed might repay him much better than the stand of grain which he so indus- triously tends, he would probably laugh. However, especially in the western states, the dogbane, or Indian hemp, as it is sometimes called, is no laughing matter. It is a rank, tough, ugly weed, which can usually flourish upon much poorer soil than the commonly cultivated grains. And instead of having to be resown each year, up it comes without waiting to give the corn, wheat, or whatever the real crop may be, an even start. What a boon it would be if the cultivated crop were so sturdy and trustworthy! Few of our native plants are more common over a greater part of the United States than the several species of dogbane, or Apocynum, the scientific name for the plant. There is scarcely a roadside or railroad right-of-way which hasn’t large and frequent patches of it, and almost every farm in (87) 88 MISSOURI BOTANICAL GARDEN BULLETIN the country is familiar with it. For in addition to having seeds which are wonderfully fitted for a wide dispersal, the plant possesses a system of thick rootstalks specially con- structed for the production of new plants. Upon these root- stalks, which do not reach straight down into the earth as most other roots do, but travel for a long distance just a few inches beneath the surface, a multitude of tiny buds, or root- shoots, are produced, each of which eventually develops into a full-fledged plant. In turn, these plants produce more rootstalks and more little buds. Each time the farmer’s plowshare cuts across the under-ground rootstalk, it cuts off one or many of the little root-shoots, casts them to one side or even carries them for a distance, where they eventually settle down to the business of crowding out the crop plants in the neighborhood. Text-figure 1, diagram 3, illustrates the under-ground parts of the dogbane. Plate 15 presents two views of a farm in southern Colorado which has become almost completely covered with plants of Apocynum medium var. lividum. This variety has never been known to produce seed, and must rely entirely upon propagation by cuttings and root-shoots. Therefore, in all probability, the entire field has become infested through the division of a single plant. A great number of other plants also reproduce themselves by means of root-shoots, notably the Lombardy poplar and the black locust. This method of propagation is really more effective than seeds; and some plants have given up the production of seeds altogether and can only be multiplied by cuttings or by root-shoots. The Lombardy poplar, which occurs in such numbers over nearly all the western world, can only be reproduced in that way. Every Lombardy poplar in the world is a direct descendant of a single black poplar tree in northern Italy which devoted its energy to the formation of a tall spire instead of a bushy tent like its brothers and sisters. From that single tree, millions of other trees have been propagated by means of cuttings and root-shoots. At the present day a sugar-maple tree, of almost the same tall, slender shape as the Lombardy poplar, is growing in a ceme- tery in New England. This tree is being carefully watched by nurserymen; and we may eventually have a ‘‘Lombardy’’ maple. ‘igi aad, aie tliebd MISSOURI BOTANICAL GARDEN BULLETIN 89 The seeds of the dogbane much resemble those ot the com- mon milkweed, having a long comet’s-tail of silky hairs which a breath of air may blow about after the seed-pod has burst. Carried into the air they finally land in a place ‘ providing suitable conditions for germination and growth. The two most common popular names of the Apocynum, ‘‘Indian hemp’’ and ‘‘dogbane,’’ owe their origin to certain uses which were found for the plant many centuries ago. The species of Apocynum called Indian hemp contain a tough, silky fiber which, from the earliest recorded times, was twisted into crude rope or thread by the Indians of North America. Conspicuous among the domestic articles found in the Cliff Dwellings of the southwestern states are rude fabrics of the fiber from the leaves of the Yucca plant woven with the silky floss of the Apocynum. The Yucca fiber usually forms the substantial warp, while that from the Apocynum constitutes the more delicate woof. Sandals and bowstring were also made from the strong thread taken from the Apocy- num stems, and frequently the wooden handles of stone axes were bound with it. In the eastern sections of the United States, as well as in Canada, the aboriginal inhabitants recognized the fiber of Apoeynum as a valuable article. From them the early European settlers learned its use. In the sixteenth century Janus Verrazanus, a Venetian sailor, came upon natives along the shores of South Carolina wearing clothing made of Span- ish moss interwoven with cords of Apocynum. From an old book entitled ‘‘A brief relation of the discovery and planta- tion of New England . . . from 1607 to this present 1622’’ one is informed that the plant called ‘‘Indian hemp’’ by the colonists and ‘‘enequen’’ by the Indians is quite a good sub- stitute for real hemp. Jacques Cartier found natives of the Bay of St. Lawrence region fishing with nets made from the same stuff. Still another record of the plant is given by the old Spanish historian, Alvarado, who related that the famous explorer, De Soto, after losing his ships on the lower Missis- sippi, built brigantines from native wood, caulking them with ‘‘the tow of an herb like hemp, called ‘enequen.’ ’’ The name ‘‘dogbane’’ is an instance of a misapplied pop- ular name which has remained in use in spite of the error. 90 MISSOURI BOTANICAL GARDEN BULLETIN Like the common mayflower (Podophyllum peltatum), which many people, botanists included, persist in ealling ‘‘man- ‘drake,’’ the Apocynum does not deserve to be called ‘‘dog- bane,’’ a name which rightfully belongs to a plant (Cynan-. chum erectum) found in Greece and around the Adriatie and Mediterranean Seas generally. The real dogbane of Europe received its name from the early Greeks, who used a stew of the stems as a poison for dogs, wolves, rodents, and other animal pests. Hence the name, which is written in Greek as &nokuvef, meaning, ‘‘from the dog,’’ or ‘‘bane or poison for dogs.’’ In some way or other, the North Ameri- can plant became confused with the European in the minds of the early botanists. While it is doubtful indeed whether it was ever used to kill dogs, the early botanists were fully justi- fied in regarding the American plant as a potential poison. The poisonous principle of the Apoeynum is contained chiefly in the milky juice, or latex, which is found in all parts of the plant. This exudes copiously from a wound, thus re- sembling the familiar milkweed (Asclepias), as well as the commonly cultivated rubber plant (Ficus elastica). But many poisons are also useful as drugs. This fact is reflected in the word ‘‘pharmacy,’’ derived from the Greek word Prevost, meaning both a drug and a poison. The root of Apocynum cannabinum was widely used as a medicinal herb by the Indians of the southern United States at the time of the first explorations in that region by the white men. Especially among the Choctaws and Cherokees was this prac- tice established. The root was chewed and the juice swal- lowed as an emetic and diuretic. From the Indians the medicinal use of Apocynum spread to the woodsmen of Ken- tucky and Tennessee, and so into the materia medica of the nation. It is recognized as officinal in the Pharmacopoeia of the United States, and is recommended in all of the larger pharmaceutical books. In moderate doses an infusion of the dried root of Apocynum cannabinum is considered an ex- cellent diuretic, and is recommended for the treatment of dropsy and malaria. In time of war a nation is compelled to examine and take stock of its natural resources, as at no other period. With certain important sources of raw materials cut off, substitutes Mo. Bor. GARD. BULL., VOL. 18, 1930 ; PLATE 15 APOCYNUM MEDIUM VAR. LIVIDUM, INFESTING A FIELD NEAR BAYFIELD, COLORADO. Mo, Bor. GArv. BULL., VoL. 18, 1980 PLATE 16 APOCYNUM MEDIUM. APOCYNUM ANDROSAEMIFOLIUM. MISSOURI BOTANICAL GARDEN BULLETIN 91 must be diligently sought. The American people are pro- verbially resourceful, and during the relatively brief period of their participation in the war of 1914-18 they discovered that they were much less dependent upon the outside world for many commodities than had been suspected. With an army of technical students and workers enlisted in supply- ing important raw materials, amazing resources were dis- covered, especially in the products obtained from the native flora. Had the United States been forced to rely for a longer period upon the home production of commodities there might have developed a number of additional important na- tional industries; but with the advent of peace many of the new-found uses for native plants were forgotten or neg- lected. One of the most important commodities of civilized life is rubber, and practically all of the plants from which it is produced can be grown successfully only in the tropics and subtropics. During hostilities importation of such im- portant plant products is frequently impossible, and it is then that a nation must turn to its neglected natural re- sources. Immediately after the entrance of the United States into the war in 1917, the state of California undertook a survey of the rubber-producing plants of the Great Basin and Pacifie Coast areas, the work being carried out under the direction of the State Council of Defense and the Uni- versity of California. This research examined some 225 latex-producing plants of the western United States, event- ually centering about several species of Asclepias and Apocy- num, or, as they are popularly known, the milkweeds and dogbanes. This was not the first research undertaken to determine the potentialities of native rubbers. As early as 1875 Asclepias was investigated, and in 1912 Fox! had found Apocynum androsaemifolium, the so-called ‘‘spreading dog- bane,’’ to have a rubber content of 2.27 per cent. The later studies of the State Council of Defense of California, pub- lished by Hall and Long? in 1921, proved that the genus Apocynum was not only capable of a much higher percentage 1 Fox, C. P. Another Ohio-grown rubber. Ohio Nat. 12: 469. 1912. 2 Hall, H. M. & Long, F. L. Rubber-content of North American Plants. Carnegie Inst. Publ. 313: 1-65. 1921. 92 MISSOURI BOTANICAL GARDEN BULLETIN of rubber from the milky juice, or latex, but is really the most promising of the North American rubber plants. These authors found A. cannabinum to produce as high as 5.1 per cent rubber, of a very superior quality. One of the most significant factors concerned with the study of the latex of Apocynum is that the rubber-content in- creases to a large extent with drought and infertility of the soil. Fox found that plants grown upon dry, sandy soil at West Akron, Ohio, gave a latex containing 2.27 per cent rubber, while those growing in the swamps of South Akron contained only 1.12 per cent rubber. Similarly, Hall and Long found the highest rubber percentage to be obtained from certain plants growing in the prairies of central Nebraska. While summarizing the conclusions of their experiments, Hall and Long declare: ‘‘The Indian hemp is considered as one of the most promising plants for further, investiga- tions. It is true that most of the analyses indicate only a small percentage of rubber, but the high yield of No. 1039 [5.1 per cent], together with the ease of vegetative propa- gation in poor, sandy soils, and the high quality of the product greatly modifies our opinion of its possibilities.’’ It is interesting to note! that during the recent war the Germans, being unable to import freely, also resorted to the manufacture of rubber from certain common weeds, one of which, Sonchus oleraceus, or common sow-thistle, grows as an introduced weed in the United States. Appar- ently the most important weed so used, however, was a sort of wild lettuce, or Lactuca. Quite aside from its possible use as a source of rubber of very satisfactory quality, the dogbanes, as it has already been related, provide very good fiber. As early as 1897 the United States Department of Agriculture undertook an inves- tigation of the fiber-producing plants of the world with the intent of bettering the nation’s home production of fibers. During the course of this research, the fiber of Apocynum 1 Pearson, H. C. Rubber-producing weeds in Germany. India Rubber World 59: 201. 1919. MISSOURI BOTANICAL GARDEN BULLETIN 93 cannabinum was spoken of very highly. Dodge!, who pub- lished the results of the investigation, wrote of this fiber: “Easily separated from the stalk, and when cleaned is quite fine, long, and tenacious. In color it is light cinnamon as usually seen, though finely prepared specimens are creamy white and remarkably fine and soft; will rank with Asclepias for strength, and is readily obtained, as the stems are long, straight, smooth, and slender. Although paper has not been made of it, it could doubtless be utilized for the purpose. It is principally employed by the North American Indians, who manufactured from it in rude fashion bags, mats, small orna- mental baskets, belts, twine, and other cordage, fishing lines, and nets. Among fine specimens received is a fish line, such as is used by the Pai Utes at the Walker River Reservation in Nevada.” Later opinions expressed by experts who have examined Apocynum fiber are that if it could be produced at a cost that would permit it to compete with hemp or jute, it might have a commercial value. Although Apocynum has not been so used, a fair quality of paper has been produced experi- mentally from Asclepias syriaca, our common milkweed. It has been stated that machinery could be constructed both to extract the latex from the plants of Apocynum and to grind the tissue preparatory to the preparation of paper-pulp.? As it has been demonstrated that the dogbane attains its maximum usefulness upon land too arid for agriculture, its economic possibilities are greatly accentuated. With vast stretches of such arid and untillable land lying idle in our western States, and because of the easy propagation of the plant, the remuneration from such a project should be con- siderable. At any rate, the wisdom of maintaining a per- manent national bureau for the discovery and development of native resources should be apparent. THE GENUS APOCYNUM IN MISSOURI. The dogbanes are scarcely among the most attractive of our native flowers, and many who have read the preceding account of their economic possibilities probably are unable to 1 Dodge, C. R. A descriptive catalogue of useful fiber plants of the world. U.S. Dept. Agr. Fiber Investig. Rept. 9. 1897. 2Hall, E. M., & Long, F. L. l.c. 60. 1921. 94 MISSOURI BOTANICAL GARDEN BULLETIN recall ever having seen the plants. However, they are rela- tively common. True, the least attractive of the species are by far the most frequent. It is a safe supposition that the more attractive a plant may be the more attention it will attract, far out of all proportion to its relative frequency as compared with a less conspicuous although more abundant plant. This is well demonstrated by our native grasses, which it may be assumed are the most widespread and common of our plants, and at the same time the least understood, both by amateur naturalists and trained botanists. The dogbane shares with the spiderwort, or Tradescantia, the fate of the prophet who is not without honor save in his own country. In Europe, Apocynum androsaemifolium, known popularly as the ‘‘spreading dogbane,’’ has been cul- tivated since early days, the exact date of its introduction being unknown. As early as 1688, however, John Ray men- tions a plant called ‘‘ Apoecynum flore lilii convallium purpura- scente’’ as appearing in the famous physic garden at Chelsea, so we may safely assume that its actual introduction was in advance of that date. By the last quarter of the eighteenth century it was evidently widely cultivated on the continent and viewed as a curiosity because of its propensity for cap- turing insects. Although it is now fully understood that insects trapped within the flowers of Apocynum are probably detained only by the viscous floral secretions, or ‘‘nectar’’, some fantastic explanations have been advanced to account for this phenome- non. The old French biologist, Lamarck, father of one of the early theories of evolution, was of the impression that me- chanical pressure exerted by a set of five peg-like nectaries situated within the flower is responsible for catching the pro- boscis of the insect. A somewhat more current view was that the stamens actually grasp the insects just as do the leaves of the ‘‘Venus’s fly-trap,’’ Dionaea. Erasmus Darwin,! the grandfather of the author of ‘‘The Voyage of the Beagle’’ and ‘‘The Origin of Species,’’ appears to have been the first to sponsor this view, and wrote as follows: “In the Apocynum Androsaemifolium, one kind of Dogsbane, 1 Darwin, E. The botanic garden. Part 2: The loves of the plants. 126. 1791. MISSOURI BOTANICAL GARDEN BULLETIN 95 the anthers converge over the nectaries, which consist of five glandular oval corpuscles surrounding the germ; and at the same time admit air to the nectaries at the interstice between each anther. But when a fly inserts its proboscis between these anthers to plunder the honey, they converge closer, and with such violence as to detain the fly which thus generally perishes.” Although it would be wearisome to retell the accounts of many other authors regarding the insect-catching habit of Apocynum, the description of the plant by the anonymous author of ‘‘The Journal of a Naturalist’’! should be included as perhaps the most fabulous of all: “But we have one plant in our garden, a native of North America, than which none can be more cruelly destructive of animal life, the dogsbane (apocynum androsaemifolium) which is generally conducive to the death of every fiy that settles upon it. Allured by the honey on the nectary of the expanded blos- som, the instant the trunk is protruded to feed on it, the fila- ments close, and catching the fly by the extremity of its proboscis, detain the poor prisoner writhing in protracted struggles until released by death, a death apparently occasioned by exhaustion alone; the filaments then relax, and the body falls to the ground. The plant will at times be dusky from the numbers of imprisoned wretches. This elastic action of the filaments may be conducive to the fertilization of the seed by seattering the pollen from the anthers, as in the case of the berberry; but we are not sensible, that the destruction of the creatures which excite the action is in any way essential to the wants or perfection of the plant, and our ignorance favours the idea of wanton cruelty in the herb; but how little of the causes and motives of action of created things do we know!” This highly fictitious narrative is illustrated by a sketch showing the flower of Apocynum androsaemifolium before: with outspread stamens awaiting the visit of the victim; and after: with the anthers pressed tightly about a fly. In justice to the plant, and deference to the eager public which might throng to the nearest patch of dogbane to watch the strange phenomena described above, it must be said that the dog- bane is not as cruel an herb as the account might lead one to believe. The number of insects caught is relatively few; there is not a spectacular elastic movement of the stamens; and the prisoner may stay until it dries up for all the move- 1 Anon. The journal of a naturalist. 80-81. 1829. 4" 96 MISSOURI BOTANICAL GARDEN BULLETIN ment which the plant makes to let ‘‘the body’’ fall to the sround. The last statement of Erasmus Darwin, however, or rather the moral to be drawn from it, alone remains significant. In order to illustrate the vivid tales of how the dogbane catches flies, and also to show the reproductive organs of the plant, a drawing of the floral organs of Apocynum andro- saemifolium is herewith reproduced. The exterior of the flower of A. androsaemifolium is typical, in its general struc- ture, of the genus Apocynum (diagram 2, fig. 1). The appear- ance as a whole is not unlike that of a large five-lobed bowl set within a shallow, five-pointed saucer. The bowl is the corolla of the flower, which represents the fusion of five sep- arate petals, as we frequently see in such flowers as'the wild rose, geranium, and the violet. The saucer is the calyx, which also represents the fusion of five sepals. The corolla is tube- or bell-shaped, and varies in color from greenish-white to a clear, pearly white striped with pink. The length varies from about one-eighth to one-quarter inch, which accounts for the fact that this plant has not been cultivated for decorative pur- poses. The green calyx varies from a length equalling that of the corolla in the small-flowered species, to about one-third the length of the corolla of the large-flowered forms. Diagram 1 of text-fig. 1 illustrates the condition of the organs within the flower. ) 4 a Mussouri BOTANICAL GARDEN [BULLETIN -_ Vol. XVIII JUNE, 1930 No. 6 = CONTENTS Page Rock Gardens for St. Louis and Vicinity .. . 9. . 107 Gray Summit Extension, the Home of a Wealth of Wild Flowers’. "7 ue HO% ioe 413 co Ca” RAB Oe aoe A aR Paaly WH ig AD dd ig Mh aos! A Rp MM ot Statistical Information . . . ; ae A ERAS Floral Displays of Special Interest in 1930 | ST. LOUIS, MO. 1930 Published Monthly, Except July and August, by the Board of Trustees SUBSCRIPTION PRICE: ONE DOLLAR PER YEAR SINGLE COPIES TEN CENTS : e és » ee ees BOARD OF TRUSTEES OF THE MISSOURI BOTANICAL GARDEN THE ORIGINAL MEMBERS WERE DESIGNATED IN MR. SHAW’S WILL AND THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE EX-OFFICIO MEMBERS, IS SELF-PERPETUATING (President. GEORGE C. HITCHCOCK Vice-President SAMUEL Cc, DAVIS. Second Vice-President DANIEL K. CATLIN, .L. Ray CARTER. ALBrertT T, PERKINS. Tuomas S. MAFFITT. Pup C. SCANLAN, Grorct T. Moore, Ernan A. H. SHEPLEY. . , Frep G. Zerera, EX-OFFICIO MEMBERS Grorce R. THROOP, Vicror J. MILLER, Chancellor of Washington University Mayor of the City of St. Louis Freperick F. JoHNsoN, ALFRED F. SaTTeRTHWAIT, Bishop of the Diocese of Missouri . Ppapipent ot! The Academy of Science oO ArTrHur A. BLUMEYER, President of the res of Waucation of St. Louis DANIEL Breck, Secretary Mo. Bor. Garp. Bunn., Vou. 18, 1930. PLATE 17 GARDEN OF A, D. GOLDMAN, CLAYTON ROAD Se eee he en ak ak Pee n> i ine Saline Missouri Botanical Garden Bulletin Vol. XVIII JUNE, 1930 No. 6 ROCK GARDENS FOR ST. LOUIS AND VICINITY Of all the types of gardens in which one may specialize, the true rock garden has usually been considered so poorly adapted to St. Louis conditions that it was useless to attempt even a smnall one, While it is a fact that many of the alpine plants which constitute such an important part of the rock vardens of Europe and of the eastern United States cannot be grown successfully here, there are fortunately many other plants which can be used. Naturally, a form of gardening which has been called ‘‘the most intriguing of all’’ should not be neglected because it is difficult; and at least a few earden lovers in and about St. Louis have demonstrated what can be done with this type of planting. That there is a growing interest in rock gardens throughout the United States is manifest. Books and magazine articles diseuss at leneth the subject from every standpoint, and there is now available a wealth of literature from which one may learn the essential facts necessary at least to plant such a garden. But a word of caution may not be out of place. If the plants used so successfully in cooler climates are dupli- ‘cated in rock gardens in this vicinity, the results are almost certain to be disappointing. Ileaping up stones may produce a rock pile or even a “‘rockery’’, but unless the plants used will establish themselves and survive during the season, by no stretch of the imagination can it be called a garden. Without attempting to describe the various types of rock (107) 108 MISSOURI BOTANICAL GARDEN BULLETIN vardens, such as ‘‘natural,’’ ‘‘artificial,’’ ‘‘wall,’’ and to dis- tinguish between them and a so-called ‘‘wild garden,’’ it has seemed advisable to give actual results obtained in this part of the country. Consequently there have been selected some of the suecessful gardens around St. Louis which most nearly approach the rock-garden class. Different types have been chosen illustrating the possibilities of various settings and localities, and it is believed these practical examples will be more beneficial to one contemplating a rock garden than any veneral discussion on the subject. There is also appended a list of a few of the more recent books on rock gardens which may be consulted at the Garden library. BOOKS ON ROCK GARDENS Correvon, H. Rock gardens and alpine plants. New York. 1930. Cotter, J. L. A simple guide to rock gardening. London. 1930. Farrer, R. The English rock garden. London. 1919. Hamblin, S. F. American rock gardens. New York. 1929. Jenkins, E. H. The rock garden. New York. 1920. Meredith, L. B. Rock gardens; how to make and maintain them. New York. 1914. Rockwell, F. F. Rock gardens. New York. 1928. Thomas, H. H. Rock gardening for amateurs. London. 1914. Wilder, L. B. Pleasures and problems of a rock garden. Garden City. 1928. A. D. Goldman, Clayton Road (pl. 17).—Passing through an interesting walled formal garden, which must have been beautiful in tulip time, one steps on to an open lawn shaded by large oaks. At a distance is seen a mass plantation of pines, spruces, arborvitae, cedars, and deciduous trees and shrubs, behind which a delightfully arranged rock garden is hidden. This garden is 100 x 150 feet and slopes toward the west. Small hills and rock glades with interwinding walks compose the entire area except the western portion, where a small waterfall with a rustie bridge is featured. In the early spring color effect is produced by bulb plants, such as snow- drops, museari, crocus, scillas, tulips, Jris pumila, followed by aubrietias, phlox, arabis, primroses, anchusas, Polemonium reptans, Lychnis alpina, and Saxifraga orbicularis. On May 15 the following plants were noted in flower: Mo. Bot. Garp. BuLu., Vou. 18, 1930. PLATE % GARDEN OF F. C. THOMPSON, BIG BEND ROAD, WEBSTER GROVES Mo. Bor. Garp. BuLu., VOL. 18, 1950. PLATE 19 SAXIFRAGA SARMENTOSA IN FLOWER GARDEN OF F.C. THOMPSON, BIG BEND ROAD WEBSTER GROVES MISSOURI BOTANICAL GARDEN BULLETIN 109 ranunculus, iris, dianthus in variety, Helianthemum Chamae- cistus var. mutabile (sun rose), linum, Gewm ‘‘Mrs. Brad- shaw,’’ Lychnis Viscaria var. splendens, Salvia azurea, sedums in variety, Geranium sanguineum, Veronica repens, Ceras- tiwm tomentosum, Leontopodium (edelweiss), Armeria vul- yaris var. splendens, Festuca glauca, Filipendula hexapetala (Spiraea Filipendula), Ajuga reptans, Verbena canadensis, cypripedium (lady’s slipper in bud). A small clump of Daphne Cneorum planted three years ago evidently will suc- cumb, due to the effect of the past winter. PF. C. Thompson, Big Bend Road, Webster Groves (pls. 18-19).—For the last twenty years Mr. Thompson has devoted his efforts to bringing together the largest possible collection of shade-loving rock plants, the greater number being either local or North American species. The rock garden is situated in the southwestern part of his estate. Its contour is a gradual slope of twenty feet from north to southwest, and a northern exposure is created by massive trees which shelter it on the south. The garden is an irregular glade formation, with inter- winding walks of stepping-stones and ledges. Through the middle eleven pools are connected by a series of cascades which finally terminate in an irregular pond, 150 feet long, planted with domestic water-lilies. An electric water pump forces the water up hill from the lake to the upper cascade, whence it again falls down the series of cascades into the lake. The first impression of the garden is that of a beautiful fern glen. Some of the earliest-blooming flowers are the native blue-bell (Mertensia virginica) and Phlox divaricata, planted or naturalized between the native ferns, blood-root, violets in variety, spring-beauty (Claytonia virginica), tril- liums, dicentras, ete. Mr. Thompson called attention to a rock ledge shaded by tall trees, entirely covered with the tender greenhouse Saxifraga sarmentosa and mats of glossy green leaves of Pachysandra terminalis, both planted fifteen years ago. A few steps toward the east, in a similar loea- tion and position, some interesting ericaceous plants were pointed out with pride: Gaultheria procumbens (partridge berry), which has been established for over five years and which flowered for the first time last year; Epigaea repens (trailing arbutus), planted summer before last and repre- 110 MISSOURI BOTANICAL GARDEN BULLETIN sented by several small new shoots. In a more exposed posi- tion hidden in a rock pocket Erica cinerea has survived the winter without any apparent injury. Research Assistant Davip H. LINDER, NELL C. Horner, Mycologist Librarian and Editor of Publications © GroRGE H. Prrina, Superintendent JOHN NOYEs, Pau A, Kout, Consulting Landscape Architect Floriculturist ELINoR ALBERTS LINDER, Orchidologist oW. F. LANGAN, Chief Engineer A. P. BEILMANN, J. H. KEeLroaa, Trees and Shrubs Herbaceous and Nursery J. CUTAK, J. LANGAN, Exotics ; Assistant Hngineer A. D. FoRRESTER, j A. PEARSON, Plant Recorder Pes Painter H. VaLtenring, Carpenter © GRAY SUMMIT EXTENSION L. P. JENSEN, D. MILLER, Arboriculturist Orchids .° G. GOEDEKE, jis -R. E. Kisskox, Farm ; j : Engineer TROPICAL STATION, BALBOA, CANAL ZONE A. A. HuNTER, Manager -_— REPRESENTATIVE IN EUROPE GURNEY WIxson, F. L: 8. Mussourt BoTANICAL GARDEN [BULLETIN No. 7 Vol. XVIII SEPTEMBER, 1930 CONTENTS Page . 119 (£22 The Early Days of ‘‘Mr. Shaw’s Garden” - Glad-e-o’-luss or Glad-eye’-o-luss? te eee The Trailing Ground Pine Found for the First Time in’ gh 25 - 126 - 126 ~ 128 «429 e Plant for Open Ditches Summit Extension An Excellent Decorativ Wild Flowers at the Gray ion . . . . Statistical Informat Floral Displays of Speci: 1 Interest in 1930 ST. LOUIS, MO. Published Monthly, Except July and August, by the Board of Trustees SUBSCRIPTION PRICE: SINGLE COPIES TEN CENTS ‘ONE DOLLAR PER YEAR “BOARD OF TRUSTEES — oF: THE MISSOURI BOTANICAL GARDEN if ee VE ‘oat 4 a . how 4 “THE oeratwaz MEMBERS ghie DESIGNATED IN MR. ‘SHAW wna ty AND. THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE | tae, sot diet ETERS Is srosgditenia sins cole 4 ¥ if A 2% ee ) ’ GEORGE ©, HITCHCOCK Vice-President SAMUEL C. DAVIS, Second Vice-Preside nt DANIEL K. CATLIN. ‘U.Ray Camrmn = ss Aer T,, THOMAS S. Marrrrr. cals | Panu C. George T, Moore: © as Se) EAR A. FRED 6. ZEIBIG. EX-OFFICIO MEMBERS “Gvonce R:THmoor, = ——~—-Vacron J; ‘Miter, Bae - Chancellor ‘of sence ass ch re: “Mayor of the city of St. ‘Lonle Hehicd 145 RTS. ae Jac’? PUN, he iy ay ‘Acrnmp F aiieakennaie, Becky ec ene © Bishop! ‘of the + Diocese of Missour! eS -ARrauR A, BLUMEYER, | aS, President of te Board of ‘Education of st. Louis bos ce bees 2 SES ced it aed k ; amit : 3, tee, ‘ . Cee ee ee. VIEW OF SOUTH PORTION OF GARDEN, AND VICINITY (From ‘Pictorial St. Louis, the great metrcpolis of the Mississippi Valley, a topographical survey drawn in perspective, A. D. 1875, by Camille N. Day, designed and edited by Rich. J. Compton, 1876.) “Lod ‘OI “OA “ITA ‘duvet OS6T ‘ST FZ ALVId Missoun Botanical Garden Bulletin Vol. XVIII SEPTEMBER, 1930 No. 7 THE EARLY DAYS OF ‘MR. SHAW’S GARDEN” Because of the developments which have taken place since the death of Henry Shaw, one is apt to lose sight of the unique position held by his garden during the lifetime of its: founder. An old number of ‘‘The Gardener’s Monthly and Horticultural Advertiser’’, edited by Thomas Meehan and published in Philadelphia, was recently presented to the Garden library by Dr. William C. Wilson, of St. Charles, Mo. This number, which appeared in August, 1868, contains an interesting account of the Garden as it was sixty years ago. Because of the light it throws upon the outstanding position of ‘‘Mr. Shaw’s Garden’’ at that time, as well as certain infor- mation relative to the content of the Garden in its early days, it is printed herewith in full: THE BOTANIC GARDEN, ST. LOUIS, MO. Mr. Henry Shaw is one of those liberal public spirited men who do so much honor to the United States. Some take pride in endow- ing and establishing one kind of institution, some others. Mr. Shaw’s taste leads him to botany, arboriculture, and gardening. His Botanic Garden and residence at Tower Grove is unequalled by anything of the kind in the United States, and indeed by few others in the world. A substantial and handsome stone wall, with an imposing arched entrance, encloses the garden proper. This en- closed area is divided into suitable compartments, for the systematic arrangement of herbaceous and other plants of low growth. An architectural flower garden, sunk somewhat below the general level, (119) 120 MISSOURI BOTANICAL GARDEN BULLETIN and surrounded by a grass terrace formed an attractive point. There is also within this main enclosure a portion of ground which has been set apart for a Fruticetum, or general collection of all hardy fruit-bearing trees; this will be of much interest, and has already been enriched by a considerable number of plants. An Arboretum is also commenced, a field of thirty acres having been appropriated for the purpose, and a finer opportunity for dis- playing the relative beauties and peculiarities of trees could not be desired. The soil is rich prairie-loam, well adapted to tree growth, and the ground is sufficiently elevated and undulating to insure drainage; an injurious retention of moisture during winter months being the greatest attending evils of these rich soils. The hot-house department is quite extensive, and the various collections are gradually being filled up. A new palm or tropical house on a magnificent scale was being constructed. The acacia and cactus families are so far the most extensive, although, of course, very far from being complete; there are also quite a number of palms and numerous miscellaneous plants, all in robust health, clean and kept in the finest condition. One of the hot-houses is built with a ridge and furrow roof, a style seldom adopted now on a single slope or lean-to house, although its only objection is prob- ably that of cost; houses so built are as suitable for plant structures as any other. A noticeable improvement is a large building of elegant propor- tions, which is to be devoted to the purpose of a Museum of Botany. ‘The interior fittings are being finished in an elaborate manner, The eeiling of the principal room is enriched by emblematic frescoes, and the names of Linneus, Jussieu, Endlicher, De Candolle, Brown, Hooker, Lindley, Gray and Engelmann, are placed in conspicuous niches. The Herbarium already embraces forty thousand speci- mens, and is constantly receiving additions. The whole of this beautiful place is thrown open freely to the public every day in the week, and the greatest pleasure of the liberal proprietor is to see how freely the public enjoy themselves, and to reflect on the immense power which such refined influences have on the general happiness of mankind. It is difficult indeed to form an estimate of the full value of such liberality. Thousands here have created in them the first germs of usefulness which operate in so many ways. In Botany already the whole world looks to St. Louis. The name of Engelmann is honored wherever Botany thrives; and we believe we violate no confidence in saying, that the name of Shaw, Engelmann, and the Botanic garden will go down into history together. A rather sad but yet interesting fea- ture of the ground was the lots set apart for the future resting place of Mr. Shaw and Dr. Engelmann. It was sad to reflect that the noblest minds amongst humanity, whose whole lives are devoted to the happiness of their fellow men, and the development of science to which we all owe half the comforts and pleasures of the present age, received no more consideration from the hands of death than 25 PLATE 18, 19390 Bot. GARD. BULL., VOL. Mo. et ; Se ‘ cy wou ee ae ee Seems iE - aM te. ae : + 6 a Ft | oh = = a fe Sgemersne aps pent = : es “ id #. ae Re, “€ re ‘es _ F & = & : H. VALLENTINE, Carpenter te GRAY SUMMIT EXTENSION L..P. JENSEN, D. Miter, Arboriculturist : Orchids —- G. GOEDEKE, R. E. Kisseck, Farm Engineer : ( RROPICAL STATION, BALBOA, CANAL ZONE yal HUNTER, — Manager REPRESENTATIVE IN EUROPE. Gurney Wison, F. L. 8, Missour: BoranicaL GARDEN [BULLETIN Vol. XVIII OCTOBER, 1930 No. 8 CONTENTS Page Miniature Glass Gardens forthe Home . ... . 131 Fashioné.n ‘Fidwets ck to SW i 135 The National Orchid Show. . 9°. 2... . 136 PHOUNS Sh SU Thy ae res are Wo Dee ets oe 138 ouy 140 Statistical Information. . . . 9... Floral Displays of Special Interest in 1930 ST. LOUIS, MO. 1930 Published Monthly, Except July and August, by the Board of Trustees Pa SUBSCRIPTION PRICE: ONE DOLLAR PER YEAR SINGLE COPIES TEN CENTS . BOARD OF TRUSTEES 7 | OF THE MISSOURI BOTANICAL GARDEN — 2 ae ) i ~ _ THE ORIGINAL MEMBERS WERE DESIGNATED IN MR. SHAW’S WILL oie he eee AND THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE ue ie ees EX-OFFICIO MEMBERS, 1S SELF-PERPETUATING ed JAN heey _ President GEORGE C. HITCHCOCK Vice-President SAMUEL C. DAVIS, . Second Vice-President DANIEL K. CATLIN. L. Ray CARTER. ; ALBERT T, PERKINS. _ Tuomas 8, Marrirr. | Pump ©, SCANLAN, se Ahan \Georce T. Moore. | ETHAN A. H, SHEPLEY. b Frep G. ZEIBia. EX-OFFICIO MEMBERS - Qgorce R. THRooP, ; se Victor J. MILLER, nae on Chancellor of Washington University Mayor of the City of St. Louis : Freperick F. JOHNSON, . ALFRED F. SATTERTIWAIT, Bishop of the Diocese of Missouri President of The Academy of Science “ ’ j of St. Louls ' ; ‘ArtHur A. BLUMEYER, President of the Board of Education of St. Louis Dante. Breck, Secretary (Hardy GLASS GARDEN TWO YEARS primroses, bird’s-foot violet. dwarf philodendron, OLD dianthus, ceratostigma, ) ALVId 9S Missoun Botanical Garden Bulletin Vol. XVIII OCTOBER, 1930 No. 8 MINIATURE GLASS GARDENS FOR THE HOME Although the Wardian case as a means of shipping plants successfully between widely separated countries has long been well known to both botanical and commercial institutions, it is only within comparatively recent years that miniature Wardian cases, or glass-enclosed gardens, for the home have become popular, or have seemed even feasible. The Novem- ber, 1914, number of the BULLETIN contained an extensive article on the history, use, and construction of Wardian cases, and therefore only a short resumé will be given here. Nearly a hundred years ago, Nathaniel Ward, a London physician, stumbled upon a method of raising and keeping plants in an environment supposedly quite unsuited to them. He had built for himself in his London garden a brick- walled corner and had carefully planted it with the mosses and ferns which he so earnestly desired to grow. Much to his distress the fog and smoke of London killed all his plants one by one. One day he discovered the cocoon of a sphinx moth, placed it in a large-mouthed glass bottle containing some rich damp loam, and covered it with a lid. Much to his surprise, within a few weeks a young fern and small grass plant made their appearance and continued to grow in the covered bottle. For nearly four years he kept these plants in the bottle and would have probably kept them indefinitely had the bottle not been accidentally destroyed. Dr. Ward then began to experiment with many plants in (131) 132 MISSOURI BOTANICAL GARDEN BULLETIN cases of various sizes and shapes until finally his invention found a very practical use in transporting plants between foreign countries. In those days of sailing vessels, when a voyage might last for eight months, especially when it in- volved crossing the equator, the transportation of plants was a difficult problem. They would die from cold, from heat, from lack of water, from gases in the hold of the ship, ete. In 1833 two cases were filled with plants and sent from England to Sidney, Australia, where they were emptied, re- filled with other plants and sent back. The cases were kept on deck and the plants not once watered during the eight- months voyage, yet they arrived in perfectly healthy and vigorous condition. A letter from Captain Mallard, in charge of this ship, to Dr. Ward, concludes: ‘‘Allow me to offer you my warm congratulations upon the success of this simple but beautiful discovery for the preservation of plants in. the living state upon the longest voyage; and I feel not a little pride in having been the instrument by which the truth of your new principle has been fully proved by experiment.”’ Elaborate instructions as to the making of small Wardian eases for the home have appeared in various publications during the past few years, but to the ordinary householder without the gift of carpentry, building the necessary wooden framework and fitting it with glass seems too great a task. Looking about for some easier method of bringing a bit of the summer woods indoors for the winter, Miss Ruth Barry, one of the most successful amateur gardeners in St. Louis, had the happy inspiration of building these small gardens in glass globes, thus eliminating the labor of construction, as well as reducing the expense so as to bring the gardens within reach of almost any one. After considerable experi- mentation the type of globe decided upon as producing the best results was a two-gallon clear-glass aquarium with two flat sides and a round hole at the top. Smaller sizes of the same type can of course be used, but then the difficulty of keeping the scale of the plants and finished garden down to that of a smaller bowl is hard to overcome. These bowls may be purchased at any department store or shop where goldfish are for sale. It should be borne in mind that the glass must , BOT, GARD. BULL., VOL, 18, 1930. PLATE bo ~ GLASS GARDEN SIX MONTHS OLD (Red cedar, greenhouse ferns. and messes.) Mo. Bor. GARD. BULL., Von. 18, 1930. PLATE GLASS GARDEN ONE YEAR OLD (Red cedar and club moss.) MISSOURI BOTANICAL GARDEN BULLETIN 133 be clear, since the plants will not flourish in bowls of tinted glass. After cleaning and polishing the bowl, place a large hand- ful of charcoal chunks in the bottom, to aid in keeping the soil ‘‘sweet.’’ A handful of broken flower pots is then added and finally the soil. The mixture of soil usually advocated is one-third each of ordinary garden soil, leaf mold, and sand, and these proportions can very well be followed by those who do not have access to natural leaf mold from the woods. It has been found, however, that if the plants come from the woods (and these are on the whole the most suc- cessful) well-rotted leaf mold collected in the woods at the same time as the plants, combined with one-third sand, makes an ideal soil for the gardens. The soil should be sat- urated with water, that is, it should be so wet that when taken in the hands and placed in the bowl the water almost drips from it. Fill the bowl about one-third full of this soil, arranging it unevenly so as to give the effect of a natural woodland, with tiny hills and valleys. While putting in the soil quantities of green moss should be forced down the flat sides of the bowl, together with a few colored stones and shells, so that the sides will be attractive. This moss will continue to grow upward through the soil and give the appearance of a miniature forest. Naturally the most important matter now is what plants to use and where to obtain them. Experience has taught that the best source of supply is our own native woods. It is not necessary to go far from the city to find a wealth of material admirably well suited for the purpose. A brook- side leading from a spring which has not gone dry during the summer is a good collecting place. Gather quantities of soft green moss, all the varieties that can be found growing on soil, not on wood, the tiniest ferns that ean be found, the smallest imaginable seedlings of spruce, pine, and cedar, none over three inches in height. Until you have made one of these gardens it is almost impossible to realize how very small the plants must be to conform to the scale of the fin- ished garden. In case it is impossible to gather material in the woods, a successful garden may be made from such 134 MISSOURI BOTANICAL GARDEN BULLETIN plants as very small palm seedlings, snake grass, myrtella, selaginella, croton, green and white variegated pandanus, ete. Sprigs of box or barberry stuck in the soil will root and grow most effectively. In general, avoid plants with succulent leaves and stems, with the one exception of the common begonia. Rooted cuttings of begonia, which begin to bloom almost at once, add a pleasing touch of color to the small garden and if carefully watched will last a long time. Half the fun of these gardens, however, is the trip to the woods for material. As late as the middle of November, in small gulleys under fallen leaves, may be found quantities of baby ferns and fat hummocks of bright green moss to use in mak- ing the gardens for Christmas gifts. After all the larger plants are arranged according to indi- vidual fancy and planted, the surface of the ground should be covered with as many varieties of moss as ean be found and very small-leaved ground-cover plants. A few small boulder-shaped rocks, a shell or two, tiny Buddhas or dwarf figures may be used beneath the trees. Very small round mirrors, shellacked on the back to prevent penetration of moisture, make quite natural-appearing lakes. Ambitious makers of these gardens follow a definite landscape plan, with paths and pergolas and even miniature rock gardens. When the garden is planted, carefully clean from the glass all smears of soil, place a flat glass plate on top as a lid and establish the bowl in a north window. It should never be placed in direct sunlight, since the intense heat created in- side the closed bowl will injure the plants in an almost un- believably short time. Keep the glass lid on the bowl almost constantly. The moisture observed on the inside of bowl and lid each morning will fall on the plants and be absorbed later in the day. Look at the garden each day, and if at any time mold is observed on the soil or plants, tip the lid to one side a trifle and leave it so for a half-day. Test the soil once in a while with the finger to see if it is moist, and if not, sprinkle very lightly with a fine spray of water. This should very seldom be necessary, however, since the moisture which naturally forms inside the bowl is sufficient for the plants. These gardens may be kept for many years GARD, BULL, Vou. 18, 1930. Bor, Mo, TWO MONTHS OLD TWO YEARS OLD Greenhouse ferns, selaginella, and red cedars. Mo, Bor. GARD. BULL., VoL. 18, 1930. PLATB AGINELLA GROWN IN GLASS BOWL FOR ABOUT TWO YEARS MISSOURI BOTANICAL GARDEN BULLETIN 185 practically with the same contents as when started, though occasional replacements with smaller plants or fresh moss are sometimes desirable. Keeping the air free from soot, the temperature even, the moisture content constant, and the air quiet yet with sufficient ventilation, makes possible success with these gardens in the unfavorable environment of the average home. Be ty ak FASHIONS IN FLOWERS That there are fashions in flowers and landscape effects, as well as in architecture and in clothes, is easily proved by a glance into the back numbers of almost any magazine dealing with floriculture and so-called artistic planting. Just as large hats atop enormous pompadours, mutton-leg sleeves, and waspish waist lines are now objects of mirth, so do the pic- tures of elaborate plantations in the parks and gardens of forty years ago rouse ridicule at the peculiar taste that could have fancied such monstrosities, and just so perhaps will the knee-length dresses, bobbed hair, and rock gardens of this age affect the more erudite generation which is to follow us. One of the most striking examples of the so-called ‘‘carpet bedding”’ of the eighties was that established in Washington Park, Chicago, in the summer of 1888. Mr. James M. Gurney, Jr., Superintendent of Tower Grove Park, found the old photograph (here reproduced), and it is to him that the BULLETIN is indebted for the information which forms the basis of this article. Mr. Kanst, of Chicago, now 83 years old, father-in-law of Mr. Gurney, was the author of this especially interesting bit of work, and without either defend- ing or condemning the fashion of that day, he simply insists that ‘‘beauty is in the eye of the beholder’’ and lets the matter rest with that. Below is Mr. Gurney’s explanation of the photograph: ‘The planting pictured includes two row-boats, rowed from opposite directions toward the same goal, a large chair on the back of which grows the date ‘1888.’ Seated in each boat is a man, literally implanted at the oars, and endowed with individual facial characteristics (likenesses were achieved by infinite detail work in the selection and shading 136 MISSOURI BOTANICAL GARDEN BULLETIN of plants used). Directly in back of the chair looms a floral post, on top of which sits an owl, presumably of the wise variety, and directly under the owl his immortal utterance, ‘HOO,’ asks it with plants. “Now for the explanation: Cleveland and Harrison were the Democratic and Republican candidates for the Presi- dential chair that year, 1888, and Mr. Kanst indulged his notion of mixing politics with a bit of floral cartooning. “At that time visitors to Chicago parks were greatly pleased with the apparent popularity of the floral fancies of carpet bedding. Whether it was worth doing (and no one can deny it was laborious work requiring skill when well executed) did not enter into the doing for this again was the fashion of the day, and thousands of succulents and dwarf plants were offered up or coaxed to embroider lawn areas in the prevailing style.’’ HK 28. 1, THE NATIONAL ORCHID SHOW The fourth national exhibition of orchids given by the American Orchid Society was held in the ball-room of the Willard Hotel, Washington, D. C., October 16-18. The num- ber of exhibitors, both private and commercial, exceeded that of past orchid shows, and the type of flowers showed that the orchid hybridist and enthusiast is striving for a higher standard in quality. Due to the show being held in October, instead of May as heretofore, the plants represented different genera from those formerly displayed at orchid shows. The greatest number of specimens were Cattleya species and hybrids, the number of Odontoglossums was limited, and there was an absence of Cymbidiums, Dendrobiums, Mil- tonias, and Phalaenopsis. A few rare plants of Vanda were seen, one specimen, Vanda Lowii, bearing three pendent spikes, four feet in length, with both staminate and pistillate flowers. The largest single-specimen orchid was Cattleya Bowringiana, bearing more than two hundred flowers of a deep mauve color. Despite the season, Paphiopedilum (Cypri- pedium) was well represented and showed the great strides made by hybridization in this genus, especially in increasing the size of the dorsal sepal. The Odontoglossum group was PLATE 31. CARPET BEDDING IN WASHINGTON PARK, CHICAGO, 1888 MISSOURI BOTANICAL GARDEN BULLETIN 137 awarded the first prize for the most artistic exhibit in the show, and Cattleya x ‘‘Mona’’ was given a prize for the best hybrid seedling of American origin not previously exhibited. Missourt Botanical Garden Exhibit—The Garden sent an exhibit illustrating the development of orchids from seed to the mature plant. One hundred Erlenmeyer flasks contained the seedlings in various stages of growth from two weeks to eight months old. A complete succession from this stage to the flowering plant was demonstrated by numerous potted plants from those in thimble-size pots to six-inch size. The symbiotic and asymbiotic methods of germination could be compared by examples of plants one and four months old. The various genera represented were: Cattleya, Laeliocatt- leya, Brassolaeliocattleya, Rolfeara, Potinera, Cymbidium, Dendrobium, Zygopetalum, Odontoglossum, Oncidium, Vanda, and Phalaenopsis. Seed-pods in various stages of develop- ment were displayed, and a quantity of the minute seed from the ripe pod was shown in a Petri dish. Demonstrations of the actual work of removing the seed- ling from flask to flask and from flask to the thimble pots were given three times daily. The attendance at these demon- strations and the daily broadcasting over the radio of the talk connected with them attested to the interest and enthusiasm in the Garden exhibit. A special demonstration was given Mrs. Herbert Hoover and distinguished visitors during the private viewing of the show which was held on Thursday afternoon, October 18, following the completion of the judging. The Garden received the Mrs. F. E. Dixon silver cup as a first prize for the exhibit showing the development of orchids from seed. The large exhibition gold medal of the American Orchid Society was awarded to Elinor Alberts Linder, Orchidologist to the Garden, for horticultural effort in developing the growing of orchids from seed. GBP: | pap: Wa Op 138 MISSOURI BOTANICAL GARDEN BULLETIN NOTES Dr. George T. Moore, Director of the Garden, spoke before the Garden Club of St. Louis, October 21, on ‘‘ What Goes on in the Plant.’’ The third annual dahlia and fall flower show of the St. Louis Horticultural Society was held at the Missouri Botan- ical Garden, October 18 and 19. Mr. G. H. Pring, Superintendent of the Garden, is the author of an article on ‘‘Chrysanthemums’’ in the November, 1930, number of the ‘‘ Ladies’ Home Journal.’’ - The convention of the American Institute of Park Execu- tives visited the Garden, September 30, and the convention of the American Society of Civil Engineers, October 9. The October, 1930, number of the ‘‘ American Druggist’’ contains an article by Mr. Anton Hogstad, Jr., Pharmacog- nosist to the Garden, entitled ‘‘Coming Back, the Show-Globe, Emblem of Pharmacy.’’ Mrs. Katherine H. Leigh, Assistant to the Director, and Miss Ruth L. Barry, spoke before the St. Louis Horticultural Society, October 3, on ‘‘Glass Gardens for the Home’’ and gave a demonstration of making one of these gardens. Mr. G. H. Pring, Superintendent of the Garden, lectured before the Osage Hills Garden Club, September 26, on ‘‘Hlowering Plants for the Garden,’’ and before the conven- tion of Park Executives, September 30, on ‘‘Plant Move- ments.’’ Dr. J. M. Greenman, Curator of the Herbarium (on leave of absence) ; Dr. Adele L. Grant, Acting Curator of the Her- barium; Dr. Edgar Anderson, Geneticist to the Garden; Dr. Robert E. Woodson, Research Assistant to the Garden, and Miss Caroline K. Allen, student in the Henry Shaw School of Botany, attended the Fifth International Botanical Con- gress, held in Cambridge, England, August 16-23. Dr. R. V. La Garde, Research Assistant to the Garden, has returned from a trip of two and one-half months in Europe. He visited the principal gardens and arboretums in central Europe and the orchid nurseries in Schonbrunn, Austria. While in Prague he gave a talk before the German Students’ MISSOURI BOTANICAL GARDEN BULLETIN 139 Union on ‘‘Universities and University Life in America.’’ Recent visitors to the Garden include Dr. Donald Reddick, professor of plant pathology, Cornell University ; Dr. Harold C. Bryant, head of the educational department, National Park Service, Washington, D. C.; Dr. Victor E. Levine, professor. of biochemistry, Creighton University, Omaha, Neb.; Dr. Arthur D. Houghton, of Los Angeles, Cal.; Dr. Frederick R. Wellman, of the U. S. Department of Agriculture; Dr. Wal- ter F’. Loehwing; professor of plant physiology, University of Iowa. Mr. Anton Hogstad, Jr., Pharmacognosist to the Garden, gave a talk before the Naturalists’ Club of St. Louis, Sep- tember 27, at its thirty-second anniversary meeting, on ‘‘Some Chemico-Pharmacological Aspects of the Nightshade Family.”’ On October 15 he gave the opening lecture for the 1930-31 season of the Colloid Medical Seminar, at the Coronado Hotel, discussing the subject ‘‘Isomerism .. . as a Related Phenom- enon to that of Colloidal Chemistry.”’ . Students pursuing graduate work in the Henry Shaw School of Botany, either at the Missouri Botanical Garden or in Rebstock Hall at Washington University, during the academic year 1930-31, are as follows: Instructor.—Martha L. Beardsley, A. B. and M. S. Wash- ington University. Assistants.—Alexander F. Bucholtz, student at Dorpat Uni- versity, Dorpat, Esthonia, B. S. Cornell University, M. 8. Washington University; Harry J. Fuller, A. B. and M. S. Washington University; Mary Elizabeth Pinkerton, B. S. University of Nebraska. Rufus J. Lackland Fellows—George J. Goodman, A. B. University of Wyoming, M. S. Washington University ; Leo C. Hitcheock, A. B. and A. M. Pomona College; John Adam Moore, B. S. Butler College, M. S. Washington State College ; Julian Steyermark, A. B. and M. S. Washington University ; F. Lyle Wynd, B. S. and M. S. University of Oregon. Jessie R. Barr Fellowship.—Marion Child, A. B. Oberlin College, M. S. Washington University. Washington University Scholarship.—Josephine Darling- 140 MISSOURI BOTANICAL GARDEN BULLETIN ton, A. B., B. S. in Forestry, University of Montana, M. 8. Washington University. ! Fellowship of American Creosoting Co.—EKarl E. Berkley, A. B. University of West Virginia, M. S. Washington Uni- versity. ; Special Garden Fellowships——Caroline K. Allen, A. B. Vas- sar College, M. 8. Washington University; Lily M. Perry, B. A. Acadia University, Wolfville, Nova Scotia; Paul F. Shope, B. S. Pennsylvania State College, M. S. University of Colorado. Special Fellowship.—Chienfan Li, A. B. Yenshing Univer- sity, China. Other students——George D. Diehl, A. B. Grinnell College; Dorothy Megowen, A. B. University of Illinois; Mary Ledger- wood, A. B. Harris Teachers College. STATISTICAL INFORMATION FOR SEPTEMBER, 1930 GARDEN ATTENDANCE: ODM MIMGOE” OL FIBILOTS © ook og 6 dicks a cba ein ceoc ee aan as 40,537 LIBRARY ACCESSIONS: ' Total number of books and pamphlets bought............ 69 Total number of books and pamphlets donated........... 206 PLANT ACCESSIONS: Total number of plants and seed packets donated........ 25 Total number of plants and seed packets purchased...... 75 HERBARIUM ACCESSIONS: By Purchase— Stanford, Prof. E. E.—Plants from California and Oregon 200 By Exchange— O’Neill, Hugh—Plants of the southeastern states......... 161 By -Gift— Wilson, P.—Plants from New York...............eee0008 1 FLORAL DISPLAYS OF SPECIAL INTEREST IN 1930 In order that readers of the BULLETIN may have a more com- prehensive idea of the various flower shows and outdoor exhibits which from month to month may be seen at the Garden, the fol- lowing tentative schedule is given. While the indoor exhibits can be quite definitely indicated, the blooming period of outdoor plants is subject to variation, depending upon the weather, and out-of- town readers should confirm the date of any display before visiting the Garden. JANUARY FEBRUARY (Floral Display House) (Floral Display House) Orchids, Primroses, and First half month—Orchids. Cyclamen. Second half month—Cinerarias. MARCH APRIL (Floral Display House) (Floral Display House) March 1-17—Bulb Show. Azaleas, Roses, Schizanthus, March 20-23—St. Louis Florists’ (Outdoors) Show. Pansies, English Daisies, Early- March 29—Azalea Show. flowering Shrubs. MAY (Floral Display House) Hybrid Pelargoniums, Salpiglossis, Begonias, Marguerites, Lupines, and other spring annuals. (Outdoors) Bulbs (early in month), Hardy Water-lilies, Peonies. Iris (late in month), Spring-flowering shrubs and perennials. JUNE (Outdoors) Roses, Hollyhocks. Medicinal Garden. JULY (Outdoors) Tropical plants. Annuals. Economic Garden — farm crops, fiber plants, rice, cotton, peanuts, tobacco, sugar-cane. Medicinal Garden. AUGUST (Outdoors) Tropical Water-lilies, Victoria Cruziana, Lotus lilies, Economic Garden. Medicinal Garden. SEPTEMBER OCTOBER (Outdoors) (Floral Display House) Tropical Water-lilles. Economic Dahlia (novelties and newer Garden. Medicinal Garden. varieties). NOVEMBER DECEMBER (Floral Display House) (Floral Display House) Chrysanthemum Show. Poinsettias, Stevias. SOME FACTS ABOUT THE GARDEN The Missouri Botanical Garden was opened to the public by Mr. Henry Shaw about 1860. From that date to the death of Mr. Shaw, in 1889, the Garden was maintained under the personal direction of its founder, and, while virtually a private garden, it was, except at certain stated times, always open to the public. Although popularly known as “Shaw’s Garden” the name Missouri Botanical Garden was designated by Mr. Shaw as its official title and in his will or in any of his writings he specifically referred to it as the “Missouri Botanical Garden.” By a provision of Mr. Shaw’s will the Garden passed at his death into the hands of a Board of Trustees. The original members of the Board were designated in the will, and the board so constituted, exclusive of certain ex-officio members, is self-perpetuating. By a further pro- vision of the will, the immediate direction of the Garden is vested in a Director, appointed by the Board of Trustees. The Garden receives no income from city or state, but is supported entirely from funds left by the founder. The city Garden comprises 75 acres, where about 12,000 species of plants are growing. There is now in process of development a tract of land of over 1,500 acres outside the city limits which is to be devoted to (1) the propagation and growing of plants, trees and shrubs, designed for showing either indoors or outside, at the city Garden, thus avoiding the existing difficulties of growing plants in the city atmosphere; (2) gradually establishing an arboretum as well as holding a certain area as a forest reservation, with the idea that possibly at some future time this may become the new botani- cal garden. The Garden is open to the public every day in the year, except New Year’s Day and Christmas—week days from 8:00 a. m. until one-half hour after sunset; Sundays from 10 a. m. until sunset. The main entrance to the Garden is located at Tower Grove ave- nue and Flora place, on the Sarah car line (No. 42). Transfer south from all intersecting lines. The Garden may also be reached by Bus Route No. 12, to which all other motorbus lines transfer. \ ng he STAFF . OF THE MISSOURI BOTANICAL GARDEN GrEorGE T. Moors, Director KATHERINE H. LEIGH, Assistant to the Director HERMANN VON SCHRENE, Davip H. LInDER, Pathologist Mycologist JESSE M. GREENMAN, ANTON HoGsrTap, JR., Curator of Herbarium (On leave of absence) Pharmacognosist ADELE L, GRANT, RoLAND- V. LAGARDE, Acting Curator of Herbarium ; Research Assistant . Epcar ANDERSON, Rosert E. Woopson, Jp., Geneticist : Research Assistant Wy: ? Ernest S. REYNOLDS, NELL C. HogNeER,, Physiologist Librarian and Editor of Publications - Georce H. Patna, Superintendent JoHN NOYES, Paut A. Kou, Consulting Landscape Architect Fioriculturist ELInog ALBERTS LINDER, Orchidologist W. F. Lanaan, Chief Engineer A. P, BEILMANN, '. J, H, KELvoaa, Trees and Shrubs Herbaceous and Nursery J. CUTAK, ; J. LANGAN, . Exotics Assistant Engineer A. D, FoRRESTER, A. PEARSON, Plant Recorder ‘ Painter H. VALLENTINE, Carpenter —ooooOoOoOoO GRAY SUMMIT EXTENSION: L. P. JENSEN, D. MILLer, Arboriculturist Orchids G. GoEDEKE, ; R. EB. Kissecx, | Farm : Engineer TROPICAL STATION, BALBOA, CANAL ZONE A. A. HUNTER, Manager REPRESENTATIVE'IN EUROPE GURNEY. WILSON, F. L. S. Missouri BoTANICcAL GARDEN BULLETIN Vol. XVIII NOVEMBER, 1930 No. 9 - CONTENTS. Page The Three Hundredth Anniversary of the First. Recog- “tized Use of Cinchona: i 6° fea een oe ea Warnings for Winter: 5. 2 RS ag TER oo Bes with Wey VAS Neh SET RNA nek ted FOS ‘Statistical Information.) v0 Cee or Sr ahaa DRS Floral Displays of Special Interest i in 1930 ST. LOUIS, MO. 1930 Published Monthly, Except July and August, by the Board of Trustees SUBSCRIPTION PRICE: ONE DOLLAR PER YEAR id SINGLE COPIES TEN. CENTS Bs BOARD OF TRUSTEES _ Loe hn a yin OF THE MISSOURI BOTANICAL GARDEN Pace Gh E ORIGINAL decane WERE DESIGNATED IN tk. SHAW's win, ne AND THE BOARD SO CONSTITUTED, EXCLUSIVE OF THE BR-OFFICIO SEMERRE, Is RELARERE SIRENS aS -Gnonan C. aTCHCocK hy axel "Vice-President sted " SAMUBL a DAVIS. "Second Wide-Presiaent DANIEL K. CATLIN. ALaeer Fe Penns, PHILr i ScANTAN, -Brmax A B. Sueniee. | Fa G. Zao ‘ % ieee Ga " Gronce R. ‘Txno0r, png ers “Vicron Jy _ Chancellor ot hicnparieg ‘psig Hs “Mayor of the City of Bt. Louis 4 _Piteator F. JOHNSON, aie _ Avene F. ‘Sarvomrawarn, | Bishop of the Diocese of at i Vio gnys by The Meer: of Sctence Ss 7 mete! y. Barra _ President of ¢* ‘Board of Baueation of st ‘Lots 3 REAU rue INCREASING THE USE * KINABOREAU AMSTERDAM-HOLLAND P ROL AGARYS DE ae EXHIBIT OF PROPAGANDA MATERIAL OF A, heading; B, painting “ a? age seh : C-F, posters for Dutch calendars; M, disc for Siam; N-W, books and circulars about THE KINABURE AU OF East Indies, G, for Jugoslavia, H, malaria and quinine. NETHERL ANDS Algeria and Morocco; I-L, ALW To ‘70 ore Missoun Botanical Garden Bulletin Vol. XVIII NOVEMBER, 1930 No. 9 THE THREE HUNDREDTH ANNIVERSARY OF THE FIRST RECOGNIZED USE OF CINCHONA HELD AT THE MISSOURI BOTANICAL GARDEN, OCTOBER 31 AND NOVEMBER 1, 1930. For three hundred years mankind has enjoyed the blessing of the febrifuge properties of cinchona or quinine bark. Noth- ing is actually known as to the discovery of the febrifuge properties of this bark, but many legends concerning it are to be found in historical archives. One of the most interest- ing is that some trees in the Peruvian wilds were blown into a pool by the wind, and thereby the water became very bitter, in fact so bitter that the natives refused to drink it. One day a native was seized with a violent fever, and finding no other water to quench his thirst, he was foreed to drink of the water from this pool, with the result that he was cured. He then related his wonderful discovery to the other inhabitants of the district, and thus the fame of the febrifuge qualities of einchona bark became known. The year 1638 has been generally accepted as the date of the first recognized use of this bark, in which year Countess Ana de Chinchon, wife of the viceroy of Peru, Luis Geronimo Fernandez de Cabrera y Bobadilla, was cured of the intermit- tent fever. The powdered bark used in this connection had been received from a Spanish corregidor, Don Juan Lopez de Canizares, who having learned of the illness of the Countess, (141) 142 MISSOURI BOTANICAL GARDEN BULLETIN had sent a packet of the powdered drug to Don Juan de Vega, her physician. Search among the old books at the Missouri Botanical Gar- den library revealed the fact that eight years earlier this Spanish corregidor had likewise been cured of the intermittent fever by means of cinchona bark, thus establishing the date of the first recognized use of cinchona as the year 1630. It is interesting to note that this finding has been verified by Dr. E. M. Holmes, Ph. C., president of the British Pharma- ceutical Conference, in an article entitled, ‘‘Three Hundred Years of Cinchona’’ which recently appeared in the ‘‘ Chemist and Druggist’’ (London). Upon recovery, the Countess Ana de Chinchon caused the bark to be collected in large quantities and given to others who were suffering from intermittent fever. The powdered bark then became known as Polvo de la Condesa, i. e., the Countess’ Powder. In the spring of 1640, the Countess re- turned to her native home, Chinchon, in Spain, bringing with her a quantity of the remedy for distribution to the sufferers of the tertian ague on her husband’s estate. Dr. Juan de Vega, physician to the Countess, followed his patient back to Spain and he also brought with him a quantity of cin- chona bark, which he sold at Seville for 100 reals (one real is equivalent to 10 cents) per pound. Some authorities state that cinchona bark had found its way to Spain in 1639, one year before the return of the Countess, for in that year it had been tried at Aleala de Henares, near Madrid. Owing to the many requests for the Countess’ Powder, the Countess of Chinchon transferred the distribution of this bark to the Jesuit fathers, it then being assigned the name of Jesuit’s bark. In 1649, a large quantity of the bark was exported to Europe by the Jesuit fathers, being received by Cardinal Juan de Lugo at Rome, who distributed it to members of that fraternity throughout Europe. It was later carried to Bel- gium by these same priests. Jesuit’s bark was introduced into England by James Tompson, a merchant of Antwerp, and in 1655, when there was a wide-spread epidemie of inter- mittent fever, it became greatly advertised. Robert Talbor, an apprentice to Dean, an apothecary of Cambridge, took an active part in the usage of Jesuit’s MISSOURI BOTANICAL GARDEN BULLETIN 143 powder. In 1672 he published a book dealing with the cause and cure of agues. Through his cures his reputation rapidly spread, and in 1678 he was appointed physician to King Charles II. In 1679 he visted France and cured a number of prominent persons of intermittent fever, but he was always very careful not to let it be known that he was employing Jesuit’s bark in the treatment. Louis XIV, having been in- formed of Talbor’s remarkable achievements with intermit- tent fever, induced him to sell his secret for the sum of 2000 livres (a livre at that time being equivalent to about twenty cents). Talbor died in 1681, in which year Louis XIV pub- lished his method of curing intermittent fever. Although the bark was employed in 1630 in effecting a cure for Don Juan Lopez de Canizares, and afterwards was widely diffused and utilized throughout Europe, no attention was devoted to the sources of this remarkable bark for almost one hundred years. The first authentic record of anyone seeking the source of cinchona is that of the endeavor of Charles- Marie de la Condamine, a French astronomer, who, when meas- uring the are of a degree near Quito, availed himself of the opportunity of being in the vicinity to investigate the origin of the famous Peruvian bark. In the year 1737 (February), he collected specimens of this bark at Sierra de Cajanuma, about two and one-half leagues from Loxa, where the Spanish cor- regidor, Don Juan de Canizares, had been cured of the inter- mittent fever in 1630. In 1738 he published an account of his findings, which was supplemented with a number of illus- trations. In 1742, Linnaeus, the father of the binomial system of plant nomenclature, assigned the name of Cinchona to this genus of plants in honor of the Countess of Chinchon. In so doing he was not aware that he had left out the letter ‘‘h’’ in the spelling of the word ‘‘Chinchon,’’ with the result that this genus of plants then became known as ‘‘Cinchona”’ in- stead of ‘‘Chinchona.’’ His mistake was not discovered until many years later. Several attempts have been made to cor- rect the error, one such an attempt being made at an inter- national botanical congress, but without avail. The name ‘*Cinchona’’ had become too firmly implanted in the minds of the botanists and quinologists, and the Linnaean spelling 144 MISSOURI BOTANICAL GARDEN BULLETIN was Tecognized by the Revision Committee of the United States Pharmacopoeia (Tenth Decennial Revision). Following the work of Condamine, many expeditions set forth to South America. These expeditions were in charge of such men as Markham, Mutis, Ruiz and Pavon, Caldas, Humboldt, Bonpland, Weddell, Tafalla, and others. Much difficulty was encountered in removing the cinchona from South America, especially the seeds. The inhabitants of the cinchona areas in South America became suspicious of the real intent of the plant collectors and made every effort to prevent them from shipping the seed to Europe. Beyond a doubt, no other group of drug plant explorers suf- fered more hardships than those who went forth in search of the famous cinchona trees. An excellent account of the many trials encountered by Markham has been given in a book, ‘LAT I 930. 1 JLL., VOL. 18, BU Bor, GARD, Mo, eS ae ee RA A TER PRUNING AF RUNING FORE P 4 Bl ROW, RY IN NURSE PLANTED ONE-HALF INCH LOWER THAN TREE Ope ee ee ee a ee ae MISSOURI BOTANICAL GARDEN BULLETIN 165 into the winter with too little water in the soil. A dry wind in early spring, with the ground dry or frozen, causes the tips of the branches to brown, not from disease or freezing but from drouth. The conifers at the Garden Extension at Gray Summit are well watered during the fall and the ground around each plant covered with a straw mulch. About 2000 young trees were transplanted to the new Pinetum in 1929, and despite their exposure to full sunshine, the loss so far has been negligible. On the other hand, during the fall of 1928 several hundred cedars which were dug from the glades near the Meramec River and planted alone the Manchester Road where the necessary water could not be supplied showed a loss of sixty per cent. Some of the deciduous shrubs show a greater mortality if planted in the late fall than in the spring. Fall-planted shrubs in many cases show a heavy freeze-back in the spring, especially if there has been a dry winter. If planted in the early fall and kept watered. there is time enough before the approach of extreme winter to repair the injury to the roots caused by digging and moving. If vacant spaces are left around the roots, due to imperfect firming of soil, the exposed roots dry up, reducing still further the chances of success. The roots are not nearly as apt to be harmed during the winter by freezing if there is close contact with the soil. Many experienced nurserymen in this vicinity prefer spring planting for those varieties of trees and shrubs most subject to winter killing, since extra attention and protection may thus be avoided. The following plants may be regarded as falling within this group: magnolia, lilac, Cornus florida, red-bud, willow, Lombardy poplar, birch, beech, tulip, and sweet-gum. The two last mentioned are regarded as the most difficult to move, either in spring or fall. For this reason the nurserymen offer these trees shipped B. B. (balled and bur- laped), the same as evergreens. It is not intended in this article to diseredit fall planting. On the contrary, many plants will succeed if moved at this time of the year, and conditions may necessitate the trans- planting of even those mentioned above in the fall rather than the spring. Extra precautions should be taken, however, to see that the trees and shrubs moved are not left to the mercy OO ee ee te ew soe El ihe: be 166 MISSOURL BOTANICAL GARDEN BULLETIN of the elements before they have become established. The nurseryman should not be accused of disposing of inferior stock when the loss is due to neglect or an unwillingness to meet the extra cost of additional watering and winter pro- tection. Ae Ee B. G. 3, P: NOTES Dr. H. W. Rickett, assistant professor of botany, University of Missouri, visited the Garden library and herbarium, Novem- ber 27-29. Mr. George H. Pring, Superintendent of the Garden, lec- tured before the School of Design at the Soldan High School, December 16, on ‘‘House Plants.”’ Dr. Ernest S. Reynolds, Physiologist to the Garden, and Dr. Edgar Anderson, Geneticist, spoke over Station KMOX, De- cember 15, on ‘‘Modern Miracles of Plant Science.’’ Mr. George H. Pring, Superintendent of the Garden, has been appointed chairman for 1931 of the School Gardens Com- mittee of the Society of American Florists and Ornamental Horticulturists. Dr. George T. Moore, Director of the Garden, gave a talk illustrated with moving pictures at the dinner of the Ameri- ean Society of Mechanical Engineers, December 12, on “‘ Plant Growth.’’ Mr. L. P. Jensen, Arboriculturist to the Garden, served as one of the judges in the 1930 Roadside Beautification Contest, sponsored by the Missouri State Highway Department, De- cember 10. Mr. lL. P. Jensen, Arboriculturist to the Garden, has given the following talks: ‘‘Roadside Beautification,’’ at the dedica- tion of a new road at Villa Ridge, Mo., October 18; ‘‘Trees,”’ before the members of the Kirkwood Garden Club, No. 1, Oc- tober 20; ‘‘The Value of a Garden Club and How It May be Organized,’’ before a meeting of citizens of Washington, Mo., assembled to organize a Garden Club, October 22. I PS eT) ee Ee Ones aE oe OEE So age aM} Cee eee. para eS hus om y MISSOURI BOTANICAL GARDEN BULLETIN 167 STATISTICAL INFORMATION FOR NOVEMBER, 1930 GARDEN ATTENDANCE: Hotel MuUMvEr Ole VistOrs.'2-/24 suas cate eta dees ee 60,384 Liprary ACCESSIONS: Total number of books and pamphlets bought............ 22 Total number of books and pamphlets donated........... 373 PLANT ACCESSIONS: Total number of plants and seeds donated................ 37 Total number ol pulbs Gonated:..7. 1st emoes hee e 7,340 PLant DIstTRIBUTION: Total number of plants distributed in exchange..,....... 39 HERBARIUM ACCESSIONS: By Purchase— Clemens, J. and M. S.—Plants of Borneo................. 687 Venturi, S.—Plants of Argentina..................,..... 271 By Gift— Drushel, J. A~—Plants of eastern United States.......... 22 Fuller, H. J—Plants of western United States............ AT Kellogg, J. H.—Plantsof -Missiuriy. i... i. cs oe asec sce 7 By Exchange— California Academy of Sciences—Plants of California..... 117 Drushel, J. A—-Plants of eastern United States........... 216 Dudley Herbarium, Stanford University—Plants of Mexico 96 Kew Herbarium—Photograph of type of Lycium macro- DRY UMN «0.0 0s We ed ete ale Ge ee hes ok ee ee eee 1 ee eee ee ae ee ee ee ee MISSOURI BOTANICAL GARDEN BULLETIN 169 Index to Illustrations ' PAGE Missouri Botanical Garden, airplane view of north half of the.... 1 Orchids, seeds of different genera of, showing characteristic struc- Mure Ot ADO HOGA CORT ey bls p95 <5 ied bonis Sin Sk ale ARM 29 Orchid flower (Cattleya Trianae) showing desirable form for use PECVD TIC 1LZ1 TDs o..o0.d0crdcapanc ie alee ls Xe tsa) Cote oe eee 30 Orchid flower (Brassocattleya Hyea) showing undesirable traits 30 Orchid plant (Cattleya Trianae), bearing seed pod 10 months old 31 Orchid plant (Dendrobium Piuiaenopsis), bearing seed pods 8 MICU OF OLCG cae adeacrsencerat ens clave ds a SINT ecg ar uacietens Go Sa ee ee 31 Dendrobium hybrid seedlings, 4 months old..................... 32 Cymbidium hybrid seedlings, transplanted, 5 months old........ 32 Brassocattleya hybrid seedlings, 3 months old................-. oo Dove orchid (Peristeria elata) seedlings, 5 months old.......... 33 Phalaenopsis hybrid seedlings in one-inch pots, 19 months old... 34 Dendrobium hybrid seedlings in one-inch pots, 2 years old...... 34 Orchid seedling house No. 5, at Gray Summit, interior of....... 35 Orchid seedling house No. 2, at Gray Summit, interior of........ 35 Old Viburnum in need of renewal pruning.................0.5. 45 TeecyoTey (2: Eas) ba bs 4 ean ane meas es re fe! Og om 46 Viburnum bush before and after pruning..................2-00- 47 Water hyacinth in St. Johns River, Florida................05. 48 Water hyacinth in the River Bremer, Queensland, Australia..... 48 Water hyacinth flowers, successive stages in the wilting of...... 49 Apocynum cannabinum, a typical colony of, growing near Caron- mee PODUE Eph ee ek haa ood cued yew cea Peas hae eee 87 Apocynum medium var. lividum, infesting a field near Bayfield, “Lf Ual32100 C0 ae cee ee ee eM caer Sg ge on Pack ma al Yo, 90 PMI ihe LCCLILIU vies cvaale sislnis a'nicanen gue bee ots Bole tas ee 91 Apociinum androsdemifolium......-...ccccccccssccceccccactece 91 Apocynum androsaemifolium. .... 0... ccc cc ecccncrccccececeecs 96 Garden of A. D. Goldman, Clayton, Mo,.............cecceccccee. 107 Garden of F. C. Thompson, Big Bend Road, Webster.......... 108 Saxifraga sarmentosa and Pachysandra terminalis in garden of em SE NOM DSO «ics crac « scx c)ene cnecc se ox abe et ee 109 Garden of Morton May, Brentmoor, Clayton. OTe ERS ee a 110 Garden of Mark C. Steinberg, Warson Road, Clayton........... 444 Garden of E. M. Funsten, Hampton Park, Clayton............... 112 Garden of F. A. Brickenkamp, Clayton................ece.000- 113 Garden and vicinity, view of south portion of................... 119 Garden and vicinity, view of north portion of.................6.- 120 tpamee arden two years Old... oso. 5 os dsc ee oc oe av 131 Glass garden six months old..... 2.02... ccc ccc cccccccuccuechce 132 Glass garden one year Old... ..... ccc eens ccc cccecsndecceecs 133 Glass gardens two months and two years old................... 134 a ee _ aaaieeeaali ghey. CP a TE ee UE oe ge Eee ae Ee A, SAREE OL Te ae 170 MISSOURI BOTANICAL GARDEN BULLETIN Carpet bedding in Washington Park, Chicago, 1888............. 136 Kinabureau of Netherlands, exhibit of propaganda material of...141 Merck & Co., cinchona exhibit of. . 05.33.00. s.ccceseeuesasiseeses 150 Dr. John Sappington, some of the relics of........... cen eeeeee 151 Dr. Sappington’s prescription book and saddle bags............. 152 Deciduous holly, fruiting specimen of................ 20sec ee eee 157 Deciduous holly, flowering and fruiting branches............... 158 Maener Corveantnemiuim” “ANNA... 0006.8 sseese chess aan ewe as 159 Hanging basket. Chrysanthemum indicum... ....ccecceeeeenees 160 Cascade chrysanthemum. “Ladysmith” front view............. 161 Cascade chrysanthemum. ‘“Ladysmith” side view.............. 162 Oasends cirysantnemums, group of... 6... cece ec eees eeu eet’ 163 Digging tree from nursery so that ball is preserved............. 164 Ce oti Osan os Diapers aE) DO Or 606 et ce ee eens nes 164 er eeLOTO ENO GLUE PIUNING ss soos cc a'os ck cane ete dies os 165 Tree planted one-half inch lower than in nursery row........... 165 Pee Ie Rye ey er es ee hee oye OP ¥ f Fine MISSOURI BOTANICAL GARDEN BULLETIN ie re ed re wie te eee ee a ee ee Fs tale i 171 General Index Figures in italics refer to page numbers of plates and cuts. A Achras Sapota, 65 Activities of Garden, floral display house, 6 Aesculus, pruning, 46 Airplane view of north half of Mis- souri Botanical Garden, 1 Amateurs, spring course in garden- ing for, 2, 40 Amber, 76 Anderson, Dr. E., 14 Anemone, pronunciation of word, 124 Aniline dye, production of first, 145 Anniversary, three hundredth, of the first recognized use of Cin- chona, 141; visitors at, 146; pro- gram of, 147 Annual bequests, 12 Annual report of the Director, 1 Apocynum; the genus, in Missouri, 93; primitive uses of, 89 Apocynum androsaemifolium, $1, 94, 96, 97, var. incanum, 99, 100; cannabinum, 90, 99, 101, a typical colony of, growing near Caronde- let, Missouri, 87, rubber content of, 92, var. pubescens, 99, 102, var. glaberrimum, 99, 101; hypericifol- ium, 98, 99, 103, var. cordigerum, 99, 108; medium, 91, 99, 100, var, leuconeuron, 99, 101, var. lividum, 88, infesting a field near Bay- field, Colorado, 90 Apprenticeships, system of, at Gar- den, 3 Aronia, pruning, 46 Arsenical sprays, 39 Asclepias, rubber content of, 90, 91 Asymbiotic method of orchid ger- mination, 35 exhibit in Atropa Belladonna, 75 ‘Attendance for the year 1929, 8 Awards to Garden in 1929, 6; given at National Orchid Show, 137 Azaleas, 6, 110 B Bagworm control of the, 36 Bamboo, giant, 68 Bambusa arundinacea, 68 Bananas, 60 Banks’, Sir Joseph, methods of growing orchids, 30 Baskets, exhibiting chrysanthe- mums in, 158, 159, 160 Begonias in glass gardens, 134 Belladonna, 75 Bernard’s, Noel, ments, 34 Boresch’s experiments with water hyacinth, 50 Brassavola, 32 Brassocattleya hybrid seedlings 3 months old, 33 Brassocattleya Hyea, showing un- desirable traits for hybridizing, 30 Brassolaeliocattleya, 137 Bremer River, water hyacinths in, 48, 49 Brickenkamp, F. A., garden of, 112, 113 Bridal-wreath, pruning, 46 British Guiana, water hyacinths in, 48 Buckeye, pruning, 46 Bulb display, 6 Burgeff’s experiments germination, 35 Cc Cacti, grafted, 64 Calamites, 80 orchid experi- in orchid ait es 5 a > +. 2a Ct 2 he eT Be) oan i hl a te 172 MISSOURI BOTANICAL GARDEN BULLETIN Calanthe Dominyi, 31; furcata, 31; Masuca, 31 Canizares, Don Juan Lopez de, 143 Carludovica palmata, 68 Carpet bedding, 135; in Washing- ton Park, Chicago, 1888, 136 Cascade chrysanthemums, 159, 167, 162, 163 Caterpillars, bagworm, 37 Cattleya, 32, 126; Bowringiana, 136; Dominiana, 31; intermedia, 31; maxima, 31; X “Mona,” 187; Trianae, 30, bearing seed pod 10 months old, 37, showing desirable form for use in hybridizing, 30 Cattleya orchid seedlings, 11 Cerbera Tanghin, 66 Cereus, night-blooming, 64 Chewing-gum tree, 65 Choke-cherry, pruning, 46 Christmas green, trailing, 125 Chrysanthemum “Anna,” 158, 150, “Benten,” 160; “Buckingham,” 160; “Columbia,” 160; “Cosmos,” 160; indicum, 160, 160; “Lady- smith,” 159, 1/61, 162; “Melba,” 160; “Molly Hunt,” 160; “Old Gold,” 160; “Roupel Beauty,” 160; “Yellow Daisy,” 158 Chrysanthemum show in 1929, 7: in 1930, 153 Chrysanthemums, cascade, 159 16/, 162, 168; in baskets, 158, 159, 160; novel methods of displaying, 158 Cinchona: the three hundredth an- niversary of the first recognized use of, 141; discovery of, 141; ex- hibits of, 741 150, 151, 152, 152; use of, 141 Club moss, 125 Coal, 69, 77 Coffee, 59 Coffee and Banana House, 59 Cold storage house, completion of, during 1929, 8 Condamine, Marie de la, 143 Conifers, 80; at Gray Summit Ex- tension, 10; transplanting, 164 Construction work at Garden dur- ing 1929, 8 Cooper’s Joseph, discoveries in or- chid growing, 30 Corn, 73 Cornus, pruning, 46 Cotton, 71 Cup, Mrs. F. E. Dixon, awarded Garden at National Orchid Show, 137 Cycads, 79 Cymbidium, 187; hybrid seedlings, transplanted, 5 months old. 82 Cypress, bald, 79 Cypripedium Harrisianum, 31 Dahlia, 7, 124 Degrees in the Henry Shaw School of Botany, 15 Dendrobium, 31, 137; hybrid seed- lings 3 years old, 34, 4 months old, 82; Phalaenopsis bearing seed pods 8 months old, 3/ Desert House, 62 Deutzia, pruning, 46 Dieffenbachia Seguine, 67 Digitalis, 75 Director, forty-first annual report of the, 1 Ditches, an excellent decorative plant for, 126 Dixon silver cup awarded at Na- tional Orchid Show, 137 Dogbane: roadside weed and future staple, 87; clasping-leaved, 103; intermediate, 100; prairie, 103; spreading, 100; velvet, 102; white-veined, 101 Dogwood, pruning, 46 Dominy, 31 Dumb-cane, 67 Dutch cultivation of Cinchona, 144 E Economic garden, 5, 70 Economic House, 65 Eichhornia paniculata, 50; speciosa, 48, 50 Epigaea repens, 109 Frica cinerea, 110 European representative of Garden, work of, 12 ~ ie se vr, _— es Fee a DART on ead oe ia ae is canes baited —s MISSOURI BOTANICAL GARDEN BULLETIN 173 F Fashions in flowers, 135 Fellows in the Henry Shaw School of Botany, 15 Fern House, 69 Ferns for glass gardens, 134 Fiber, dogbanes as a source ol, 89, 92 Floral displays in 1929, 6 Flower sermon, annual, 12 Flower shows at Garden, 7 Forsythia, frozen, treatment of, 52 “Fossils, living,’ in the Missouri Botanical Garden, 76 Frozen hedges and shrubs, 51 Fruit trees at Gray Summit Hxten- sion, 11 Fungous pests at Garden in 1929, 2 Fungus, relation of a, to orchid ger- mination, 34 Funsten, E. M., garden of, 112, 112 G Gallaud’s experiments with the or- chid fungus, 34 Gardener’s Monthly and Horticul- tural Adviser, early account of Garden in, 119 Gardening: elementary spring course in, for amateurs, 40; in- struction in, 2 Gaultheria procumbens, 109 Ginger plant, 65 Ginkgo tree, 78 Glad-e-6-luss or Glad-eyé-o-luss?, 122 Glass gardens: for the home, minia- ture, 131; two years old, 13/1; six months old, 152; one year old, 1383; two months old, 134; two years old, 134 Golden-bell, treatment of frozen, 52 Goldman, A. D., garden of, 107, 108 Graduate students in Shaw School of Botany in 1929, 15 Grafted cacti, 64 Gray Summit Extension, 10; green- houses at Gray Summit Exten- sion, 11; the home of a wealth of wild flowers, 113; interior of or- chid seedling house at, showing hybrid seedlings, 33; spring wild flowers blooming at, 82; wild flowers at the, 126 Greenhouses at Gray Summit Ex- tension, 11 Greenman, Dr. J. M., 13 H Hanging baskets of chrysanthe- mums, 158, 160 Heating system at Garden, improve- ment in, during 1929, 9 Hedges, frozen, treatment of, 51 Hemp: Indian, 87, 101; Canadian, 102 Herbarium, report of, for 1929, 20; exchange of specimens, 22; field work during 1929, 22; mounting and inserting of specimens, 21; new accessions, 20; reorganiza- tion of specimens, 22; statistical summary, 23; use of herbarium by outside botanists, 22 Hog Hollow (Jefferson County), spring wild flowers blooming at, 83 Holly, deciduous, 157, 157, 158 Honeysuckle, treatment of frozen, 53 Horsetails, 80 Hybrids, orchid, 31 Hydrangea paniculata, pruning, 46 I Ilex decidua, 157, 157, 158 Insect-catching habit of Apocynum, 94, 97 Insects and fungous pests during 1929, 2 Instruction: in gardening, 2; in the Henry Shaw School of Botany, 14 Iris test garden, 5 Italian garden, 5 J “Jardin des Plantes of the United States,” 121 Java, cinchona growing in, 144 Jesuits bark, 142 . ——— Fr. pis ee ee et ies Poteet & eo ae ne, tae ~ CP ee en ee ee ee Le ee eee 174 K Kalmia latifolia, 110 Kerria, pruning, 46 Kinabureau of Netherlands, exhibit of propaganda material of, 141, 152 Knudson, asymbiotic method of ger- minating orchids developed by, 35 L Laelia, 31 Laeliocattleya, 137 La Garde, Dr. Roland V., 14 Latin names of plants, 123 Lectures, scientific and popular, by members of staff during 1929, 17 Lepidendrons, 80 Library, report of, for 1929, 23; Gar- den publications, 25; new acces- sions, 25; statistical information, 26; use of the library, 24 Ligustrum “Tbolium,” 52; Ibota, 52; ovalifolium, 52 Lilac, pruning, 46 Lilies, 110 Lily bulbs at Gray Summit Exten- sion, 10 Linder, Dr. David H., 14 Lindley’s observations on orchids, 30 Linnaeus’ spelling of Cinchona, 143 Linnean garden, 4 Lonicera fragrantissima, treatment of frozen, 53 Lycopodium clavatum, 125; com- planatum, 125; lucidulum, 125, var. porophilum, 125 M Maidenhair tree, 78 Maple, tall, in New England, 88 Markham, Sir Clements, 144 Masdevallia, 31 Massachusetts Horticultural So- ciety flower show, 6 Mathias, Dr. Mildred E., 14 May-apple, 75 May, Morton, garden of, 110, 1/70 Medals: awarded Garden in 1929, 6; of American Orchid Society, 137 MISSOURI BOTANICAL GARDEN BULLETIN Medicinal plant garden, 5, 74 Medicinal use of Apocynum canna- binum, 90 . Merck & Co., quinine exhibit of, 150, 152 Miniature glass home, 131 Missouri Botanical Garden: air- plane view of north half of the, 7; and vicinity, 1875, view of south portion of, 1/9, of north portion, 720; and the St. Louis schools, 57; exhibit of orchids at orchid show, 137 Mock-orange, pruning, 46 Moss, club, 125 Mosses used in Wardian cases, 133 Mother-in-law plant, 67 Museum, Henry Shaw, 3 N Narcissus bulbs at Gray Summit Extension, 10 National Orchid Show, 136 Navigation, a plant that stopped, 48 Neottia, 34 Nine-bark, pruning, 46 Nursery at Gray Summit Exten- sion, 10 gardens for the O Oak, pin, pruning, 47 Odontoglossum, 136 Oncidium, 137 Orchid: hybrids, 31; seedlings at_ Gray Summit Extension, 11, 34;.” dove, seedlings 5 months old, 33; show, the national, 136; show at Garden, 6 Orchids: flowering, exhibited by Garden at St. Louis Horticultural Society spring show, 6; from seed, exhibit illustrating, 137; growing of, from.seed, 29; growth of, from seed to flower, Garden exhibit showing, 6; seeds of dif- ferent genera showing character- istic structure of the seed coat, 29 Ordeal plant, 66 ae wee ee oe Np ee els MISSOURI BOTANICAL GARDEN BULLETIN Ornamental trees and shrubs, prun- ing, 45 Osage Hills, Mo., flowers found in, 82 Outdoor planting, 4 spring wild P Pachysandra terminalis, 109 Pacific, Mo., spring wild flowers blooming at, 83 Palm: bamboo, 68; date, 67; seedlings in glass gardens, 134; Panama-hat, 68 Palm house, 67 Paphiopedilum, 136 Paris green for spraying the bag- worm, 39 Paxton’s methods of growing orchids, 30 Pelletier and Caventou, placques of, 152 Pepper, black, 66 Peristeria elata, 11; months old, 33 Phalaenopsis, 137; hybrid seedlings, 10 months old, 34 Philadelphus, pruning, 46 Phoenix dactylifera, 67 Physocarpus, 46 Pine: trailing ground, the first time in Missouri, trees, 80 Piper nigrum, 66 Plant that stopped navigation, 48 Planting, outdoor, in 1929, 4 Podophyllum, 75, 90 Poinsettia display, 6 Pools, tropical, reconstruction of, 8 Poplar, Lombardy, 88 Potinera, 32, 137; seedlings, 12 Prickly pears, 63 Privet, California, 51; treatment of frozen, 52; “Ibolium,” 52 Pruning, 162, 164, 165; ‘‘corrective,” 47; renewal, 46, 46; of orna- mental trees and shrubs, 45; root, 162, 164; Viburnum in need of, 45 Published articles by members of staff during 1929, 16 seedlings 5 found for 125; ~ ae ee fe ies a. | ONE aa at. ve 175 Q Queensland, Australia, water hya- cinth in, 48, 49 Quinine, propaganda material of, 141 R Rankin Hstate, spring wild flowers blooming at, 83 Ranunculus repens, 126 Records of first blooming of wild flowers in the vicinity of St. Louis, 82 Red-bud, 53 Renewal pruning, 45, 46, 46 Research and instruction 1929, 13 Reynolds, Dr. E. S., 13 Rhododendron, 110; dell at Gray Summit Extension, 10 Rice, 71 Roads at Gray Summit Extension, 10 Rock garden at Gray Summit Ex- tension, 10; for St. Louis and vi- cinity, 107 Rolfeara, 137 Roses: damage to, by storm of May 2, 1929, 4; treatment of frozen, 53; winter treatment of. 155 Rubber content of Apocynum an- drosaemifolium, 91 Rushes, 80 during Ss Saint John’s River, Florida, water hyacinths in, 48, 48 St. Louis and vicinity, dens for, 107 St. Louis College of Pharmacy, medicinal plants used by, 5 St. Louis Horticultural Society spring show, Garden exhibit of flowering orchids at, 6 St. Louis, records of first blooming of wild flowers in the vicinity of, 82 St. Louis schools, the Missourt Botanical Garden and the, 57 Sapodilla plum, 65 rock gar- PY es eat) Gato AD AD | * yo. ee fei ea sg a he 176 MISSOURI BOTANICAL GARDEN BULLETIN Sappington, Dr. John, some of the relics of, 751, 152, 152 Saxifraga sarmentosa in _ flower, 109, 109; rock ledge planted with, 109 School for Gardening, 2 School of Occupational Therapy, courses offered to students in, 3 Schools, the Missouri Botanical Garden and the, 57 Selaginella grown in glass bow] for about two years, 135 Shade house, 9 Shaw Museum, 3 “Mr., Shaw’s Garden”, the early days of, 119 Shrub, a large, for the garden, 157 Shrubs: frozen, 51; pruning, 45, 45, 46 Snowball, see Viburnum Snowstorm of May 2, 1929, dam- age to plants at Garden by, 1 Sonchus oleraceus, 92 Sophronitis, 32 Spiraea, pruning the, 46 Spraying: for the bagworm, 39; for scale, 154 Spring course in gardening for amateurs, 40 Spurges, 64 Stapelias, 64 Statistical information for Decem- ber, 1929, 27; January, 1930, 43; February, 55; March, 85; April, 105; May, 118; June-August, 129; September, 140; October, 156; November, 167 Steinberg, Mark C., garden of, 111, 11 Sumac, fragrant, 53 Swect-gum, pruning, 47 Sycamore, 161; before and after pruning, 165 Symbiotic method of orchid ger- mination, 35 Syringa, pruning, 46 Thompson, F. C., garden of, 108, 109, 109 Tiger apple, 66 Tobacco, 73 Trailing ground pine, 125 Transplanting trees and _ shrubs, 162, 164, 165 Trees: damage to, by snowstorm of May 2, 1929, 2; and perennials, plantings of, at Gray Summit Ex- tension, 10; care of, during 1929, 5; pruning, 45; and shrubs, trans- planting, 162 Tropical Station, Missouri Botani- cal Garden, 12 Tulip tree, pruning, 47 Vv Vanda, 137; Lowii, 136; Sander- iana, 11 Viburnum, 46: bush, before prun- ing, 47, after pruning, 47, in need of renewal pruning, 45 WwW Wahrlich’s observations on orchid culture, 34 Ward, Nathaniel, 131 Wardian cases, 131, making of, 132 Warnings for winter, 154 Water hyacinth, 48: a year’s growth in the River Bremer, Queensland, Australia, 48; in St. Johns River, Florida, 48; successive stages in the wilting of flower, 49, 51 Weather in St. Louis during 1929, 1 Wheat, 70 Wild flowers: at the Gray Summit Extension, 126; Gray Summit Extension, the home of a wealth of, 113; records of first blooming, in the vicinity of St. Louis, 82 Wilson, Mr. Gurney, work of, 12 Winter, warnings for, 154 Wisteria, spelling of name, 124 Woodson, Dr. Robert E. Jr., 14 4 yA Yucca plant, fabrics from, 89 Z Zingiber officinale, 65 Zygopetalum, 11, 137 FLORAL DISPLAYS OF SPECIAL INTEREST IN 1930 In order that readers of the BULLETIN may have a more com- prehensive idea of the various flower shows and outdoor exhibits which from month to month may be seen at the Garden, the fol- lowing tentative schedule is given. While the indoor exhibits can be quite definitely indicated, the blooming period of outdoor plants is subject to variation, depending upon the weather, and out-of- town readers should confirm the date of any display before visiting the Garden. JANUARY FEBRUARY (Floral Display House) (Floral Display House) Orchids, Primroses, and First half month—Orchids. Cyclamen. Second half month—Cinerarias. MARCH APRIL (Floral Display House) (Floral Display House) March 1-17—Bulb Show. Azaleas, Roses, Schizanthus. March 20-23—St. Louis Florists’ (Outdoors) Show. Pansies, English Daisies, Early- March 29—Azalea Show. flowering Shrubs. MAY (Floral Display House) Hybrid Pelargoniums, Salpiglossis, Begonias, Marguerites, Lupines, and other spring annuals. (Outdoors) Bulbs (early in month), Hardy Water-lilies, Peonies. Iris (late in month), Spring-flowering shrubs and perennials. JUNE (Outdoors) Roses, Hollyhocks. Medicinal Garden. JULY (Outdoors) Tropical plants. Annuals. Economic Garden—farm crops, fiber plants, rice, cotton, peanuts, tobacco, sugar-cane. Medicinal Garden. AUGUST (Outdoors) Tropical Water-lilies, Victoria Cruziana, Lotus lilies. Economic Garden. Medicina] Garden. SEPTEMBER OCTOBER (Outdoors) (Floral Display House) Tropical Water-lilles. Economic Dahlia (novelties and newer Garden. Medicinal Garden. varieties). NOVEMBER DECEMBER (Floral Display House) (Floral Display House) Chrysanthemum Show. Poinsettias, Stevias. et, ae SOME FACTS ABOUT THE GARDEN The Missouri Botanical Garden was opened to the public by Mr. Henry Shaw about 1860. From that date to the death of Mr. Shaw, in 1889, the Garden was maintained under the personal direction of its founder, and, while virtually a private garden, it was, except at certain stated times, always open to the public. Although popularly known as “Shaw’s Garden” the name Missouri Botanical Garden was designated by Mr. Shaw as its official title and in his will or in any of his writings he specifically referred to it as the “Missouri Botanical Garden.” By a provision of Mr. Shaw’s will the Garden passed at his death into the hands of a Board of Trustees. The original members of the Board were designated in the will, and the board so constituted, exclusive of certain ex-officio members, is self-perpetuating. By a further pro vision of the will, the immediate direction of the Garden is vested in a Director, appointed by the Board of Trustees. The Garden receives no income from city or state, but is supported entirely from funds left by the founder. The city Garden comprises 75 acres, where about 12,000 species of plants are growing. There is now in process of development a tract of land of over 1,500 acres outside the city limits which is to be devoted to (1) the propagation and growing of plants, trees and shrubs, designed for showing either indoors or outside, at the city Garden, thus avoiding the existing difficulties of growing plants in the city atmosphere; (2) gradually establishing an arboretum as well as holding a certain area as a forest reservation, with the idea that possibly at some future time this may become the new botani- cal garden. The Garden is open to the public every day in the year, except New Year’s Day and Christmas—week days from 8:00 a. m. until one-half hour after sunset; Sundays from 10 a. m. until sunset. The main entrance to the Garden is located at Tower Grove ave- nue and Flora place, on the Sarah car line (No. 42). Transfer south from all intersecting lines. The Garden may also be reached by Bus Route No. 12, to which all other motorbus lines transfer. Me STAFF OF THE MISSOURI BOLE GARDEN Grorce T. Moors, Director KaTHERINE H, LEIGH, Assistant to the Director HERMANN VON cute aati _ Davin. H, Liner, Pathologist JESSE M, GREENMAN, Curator of Herbarium (On leave of absence). . ADELE ‘L.. GRANT, Mycologist Anton Hogsrap, JR., Pharmacognosist Rovanp V. LaGarog, Acting Curator of Herbarium Research Assistant Epear ANDERSON, Geneticist ; _ERNEST S,. REYNOLDS, ee -NELL C. HoRNEr, ‘ Physiologist Fes * Librarian and Editor of Publications JOHN NOYES, Rovert E. Woopson, JE., Research Assistant i -GrorGe H. PRIN, - ‘ Superintendent - Pau A. Kou, Consulting Landscape Architect a Fioriculturist ° A. P. BEILMANN, Trees and Shrubs -J.,CUTAK, Exotics A. D, FoRRESTER, Plant. Recorder x L. P. JENSEN, Arboriculturist G. GOEDEKE, Farm Evinor ALperts, LiNpER, Orchidologist W. F.. LAncan, Chief Engineer. J. H. KELLoae, Herbaceous and Nursery J. LANGAN, Assistant Engineer A, PEARSON, x7 Painter H. VALLENTINE, Carpenter BRAY: SUMMIT EXTENSION , D. MILER, Orchids | R, BE. Kisseox, Arig ; EROVISAR STATION, BALBOA, CANAL ZONE A, A, HUNTER, Manager REPRESENTATIVE IN EUROPE Gurney Wiison, F. L. 8.”