‘ 
INDEX TO AMERICAN BOTANICAL LITERATURE 
1924 
The aim of this Index is to include all current os literature written by 
Americans, published in America, or sac n American material; the word 
America being used in the broadest se 
Reviews, and papers that relate oh to forestry, agriculture, horti- 
culture, — products: of vegetable origin, « or la ratory methods 
f bacteriology. 
An occasional shoes ts is made i in favor of some paper appearing in an Ameri- 
can periodical which is devoted wholly to botany. Reprints are not mentioned 
unless they differ from the original in some important particular. If users 
of the Index will call en aap of the editor to errors or omissions, their 
kindness will be appr 
This Index is oui, ae on cards, and furnished in this form to 
subscribers at the rate of three cents for each card. Selections of cards are 
not permitted; each subscriber must take all cards published during the term 
of his subscription. Correspondence relating to the card issue should be 
addressed to Dr. Fred J. Seaver, N. Y. Botanical Garden, Bronx Park, N. Y. 
City. 
Amator, F. Why not the Aquilegia as our national flower? 
Gardeners’ Chron. Am. 28: 131, 141. My 192 
Ames, O. Additions to the orchid flora of tropical America. 
Schedulae Orchidianae No. 7, 1-36. f. 1-6. pl. 4-20. 27 Mr 
1924. 
Including descriptions of new species in Cranichi s (1), Epidendrum (6), 
Maxillaria (1), Oncidium (1), Pelexia (1), os (3), Polystachya (1), 
Rolfea (1), Sobralia (1), and new combina 
Babcock, E. B. Remarkable variations in tarweeds. Jour. 
Heredity 15: 133-144. f. 16-23. ‘“‘Mr’’ 17 My 1924. 
Barnum, C. C. The production of substances toxic to plants 
by Penicillium expansum Link. Phytopathology 14: 238- 
243. f. I-2. 24 My 1924. 
Beckwith, A. M. The life history of the grape rootrot fungus 
Roesleria hypogaea Thiim & Pass. Jour. Agr. Research 
27: 609-616. pl. r. 23 F 1924. 
Berry, E.W. Mesozoic plants from Patagonia. Am. Jour. Sci. 
7: 473-482. f. I-4. Je 1924. 
437 
