INDEX TO AMERICAN BOTANICAL LITERATURE 
(1910-1913) 
The aim of this index is to include all current botanical literature written by 
Americans, published in America, or based upon American material ; the word Amer- 
ica being used in the broadest sense. 
Reviews, and papers that relate exclusively to ‘hoe, agriculture, horticulture, 
manufactured products of vegetable origin, or snboratory methods are not included, and 
R a 
' 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, - furnished in this form to subscribers 
at the rate of one cent for each card. Selections of cards are not permitted ; each 
subscriber must take all cards published Fass pe term of hie subscription, Corre- 
spondence relating to the card issue should be addressed to the Treasurer of the Torrey 
Botanical Club, 
Albert, F. La Tuia jigante. (Thuya plicata.) Bol. Bosques Pesca i 
Caza 1: 586-591. Mr 1913. [Illust.] 
Alway, F. J. Studies on the relation of the non-available water of the 
soil to the hygroscopic coefficient. Nebraska. Agr. Exp. Sta. 
Research Bull. 3: 5-122. f. 1-37- 25 Je 1913. 
Ames, A. A consideration of structure in relation to genera of the 
Polyporaceae. Ann. Myc. 11: 211-253. pl. 10-13. Je 1913. 
Ames, O. Orchidaceae: Illustrations and studies of the family 
Orchidaceae. The genus Habenaria in North America. Fascicle 
i-xiv + 1-288. pl. 60-79. “Boston, 1910. 
Ami, H. M. Preliminary lists of the organic remains occurring in the 
various geological formations comprised in the map of the Ottawa 
District, including formations in the provinces of Quebec and 
Ontario, along the Ottawa river. Ann. Rep. Canada Geol. Surv. 
II. r2: 51G-77G. D 1901. 
Andres, H. Zwei neue Pirolaceae aus der Subsection Erxlebenia (Opiz) 
H. Andres nebst einigen Bemerkungen zur Systematik der hei- 
mischen Arten. Verhandl. Bot. Ver. Brandenburg 1912: 218-227. 
Sind, Be] AOTs. 
Pirola paradoxa sp. nov. from Washington. 
Andrews, F. M., & Ellis, M. M. Some observations concerning the 
reactions of the leaf hairs of Salvinia natans. Bull. Torrey Club 40: 
441-445. Au 1913. 
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