INDEX TO AMERICAN BOTANICAL LITERATURE 
1921 
The aim of this Index is to include all current botanical literature written by 
Americans, published in America, or ae upon American material; the word 
America being used in the broadest 
Reviews, and papers that relate etnctinfiel to foresty, agriculture, horti- 
oulene manufactured products of vegetable origin, or ls boratory methods 
f bacteriology. 
An occasional sista is tiade 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 the attention of the editor to errors or omissions, their 
kindness will be appreciated, 
This Index is reprinted monthly 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 the Treasurer of the Torrey Botanical Club. 
Gardner, M. W., & Kendrick, J. B. Turnip mosaic. Jour. 
Agr. Research: 22: 123. pl 20 15 O 1921. 
Garrett, A. O. Some introduced plants of Utah. Torreya 21: 
76-79. O 1921. 
Gatin, C. L. (Premiére contribution a l’étude) De l’embryon 
et de la germination des Aracées. Ann. Sci. Nat. Bot. X.3: 
145-180. pl. 1-10. -N Ig2t. 
Gericke, W. F. Root development of wheat seedlings. Bot. 
Gaz. 32: 404-406. f. |. 15 D 1921. 
Gleason, H. A. Botanizing in British “Galina: Jour. New 
ork Bot. Gard. 22: 161-168. S 1921 
Gleason, H. A. A rearrangement of the Bolivian species of 
Centropogon and ees mpylus. Bull. Torrey Club 48: 
189-201. 26S 19 
Includes 2 new species 2 peace 
Goldring, W. Annual rings of growth in Carboniferous wood. 
ot. Gaz. 72: 326-330. pl. 14. 15 N. 1921. 
Goss, R. W. Temperature and humidity studies of some 
Fusaria rots of the Irish potato (Solanum tuberosum). Jour. 
Agr. Research 22: 65-79. pl. 10. 11. 8 O 1921 
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