INDEX TO AMERICAN BOTANICAL LITERATURE 
(1913) 
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 s 
Reviews, and papers that ore exclusively to forestry, agriculture, horticulture, 
manufactured products of vegetable origin, or laboratory methods are not included, and 
no attempt is made to index the literature of bacteriology. An occasional exception is 
made in favor of some paper appearing in an American periodical which is devoted 
wholly to botany. Reprints are i a 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 ae monthly on cards, a furnished in 1 this form to subscribers 
at the rate of one t for each card, Selections of cards are not permitted ; each 
subscriber must wee ‘a cards published during the term of his subscription, Corre- 
spondence relating to the card issue should be addressed to the Treasurer of the Torrey 
Botanical Club, 
Anthon, S. I. The surprise lily. Am. Bot. 19: 81-83. Au 10913. 
[ llust.]} 
Calochortus macrocarpus. 
Bailey, W. W. Transient botanizing. Am. Bot. 19: 98, 99. Au 1913. 
Bartholomew, E. T. Black heart of potatoes. Phytopathology 3: 
180-182. pl. 19. 14 Au 1913. 
Bitter, G. Solana peruv., aequat., boliv. Bot. Jahrb. Beibl. 50: 
5°-67. 19 Au 1913. 
Includes 7 new species in Solanum. 
Blodg-tt, F. M. Hop mildew. Cornell Univ. Agr. Exp. Sta. Bull. 328: 
281-310. f. 93-1 1. Mr 1913. 
A disease caused _by Sphaerotheca Humuli. 
Borgesen, F. The marine algae of the Danish West Indies. Part I. 
Chlorophyceae. 1-160. f. 1-126 + chart. Copenhagen. 1913. 
Includes Pringsheima Udoteae, Cladophora uncinata, C. corallicola, and Avrain- 
villea Geppii, spp. nov. 
Brand, A. Polemoniaceae peruvianae et bolivienses. Bot. Jahrb. 
Beibl. 50: 50-52. 19 Au 1913. 
Includes Huthia longiflora sp. nov. 
Brown, P. E. Media for the quantitative determination of bacteria 
in soils. Centralb. Bakt, Zweite Abt. 38: 497-506. 9 Au 1913. 
647 
