INDEX TO AMERICAN BOTANICAL LITERATURE 
(1911-1913) 
aim of this Index is to include all current botanical literature written by 
Americans, apamy in America, or based upon American material ; the word Amer- 
ica being used in the broadest sense. 
Reviews, and papers that relate exclusively to forestry, agriculture, horticulture, 
manufactured products of vegetable origin, or laboratory methods are not included, and 
made in favor of some paper appearing in an American periodical which is devoted 
wholly to botany. Reprints are not mentioned unless they differ from the original in 
some important particular. If u of the Index will call the attention of the editor 
+o errors or omissions, their ‘aids will be appreciated. 
This Index is reprinted monthly on cards, and 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 during the term of his subscription, Corre- 
spondence relating to the card issue should be addressed to the Treasurer of the Torrey 
Botanical Club, 
Arthur, J. C. A new weed exterminator. Science II. 37: 19. 3 Ja 
1913. 
Banker, H. J. Type studies in the Hydnaceae—III. The genus 
Sarcodon. Mycologia 5: 12-17. 
Includes Sarcodon radicatus, S. Murrillii, S. fumosus, and S. roseolus, spp. nov. 
Ball, C. R. The kaoliangs: a new group of grain sorghums. Bs 
Dept. Agr. Plant Ind. Bull. 253: 5-64. pl. 1,2 +f. I-15. U Ja 
1913. 
Bartlett, H. H. The purpling chromogen of a Hawaiian Dioscorea. 
U.S. Dept. Agr. Plant Ind. Bull. 264: 5-19. pl. 1 +f.1- 8 Ja 1913. 
Bates, J. M. Ophioglossum vulgatum in Nebraska. Fern Bull. 20: 
67. [Ja 1913] 
Berger, A. Opuntia Ficus barbarica Berger nom. nov. 
teenk. 22: 181. 15 D 1912. 
Bessey, C. E. Some of the next steps in botanical science. 
37: 1-13. 3 Ja 1913. 
Bitter, G. Solana nova vel minus cognita. V. Repert. Sp. Nov. 11: 
349-394. 15 D1912; VI. Repert. Sp. Nov. 11: 431-473- 31 D 
1912. 
Includes 17 new species and 
Bitter, and 6 new species in the section Polybo 
Brain, 
Monats. Kak- 
Science II. 
several new varieties in the section Tuberarium of 
tryon. 
_K. A list of fungi of Cedar Point. Ohio Nat. 13: 25-36: 
D 1912. 
: 131 
