INDEX TO AMERICAN BOTANICAL LITERATURE 
1920-1922 
The aim of this Index is to include all current botanical literature written by 
Americans, published i in America, or eee upon American material; the word 
America being used in the broadest 
Reviews, and papers that relate she tlealy to foresty, agriculture, horti- 
-cepeaine: manufactured products of Vegrtabie. aries or si pep dle methods 
t f bacteriology. 
An occasional please 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 the penton 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. 
Sherman, E. A. The forests and our future. For. Leaves 18: 
187-192. D 1922. 
Shimek, B. Quercus lyrata in Iowa. Bull. Torrey Club 49: 
293-295. pl. 16, 17. 11 O 1922. 
Shufeldt, R. W. The kudzu vine and other climbers. Am. 
For. 28: 532-540. f. I-13. 
Siggers, P. V. Torula ligniperda (Willk.) Sacc—a hyphomy- 
cete occurring in wood tissue. Phytopathology 12: 369- 
S74: Pi. 24. “11S 1922. 
Sinnott, E. W. Inheritance of fruit shape in Cucurbita Pepo— 
I. Bot. Gaz. 74: 95-103. f. I-3. 15 5 1922. 
Sinoté, Y. On the nuclear divisions and partial sterility of 
Oenothera Lamarckiana Ser. Bot. Mag. [Japan] 36: 92-98. 
ea-g.- Atl 1922. 
Skottsberg, C. The phanerogams of Easter Island. Nat. Hist. 
Juan Fernandez & Easter Is. 2: 61-84. pl. 6-9 + f. 1, 2. 
1922. 
Includes 4 new species. 
255 
