INDEX TO AMERICAN BOTANICAL LITERATURE “ 
(1907) 
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 its broadest sense. 
Reviews, and papers which relate exclusively to forestry, agriculture, horticulture, 
manufactured products of vegetable origin, or laboratory methods are not include , an 
ho 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 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 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. 
Ames, 0. Orchidaceae halconenses: an enumeration of the orchids 
collected on or near Mount Halcon, Mindoro, chiefly by Elmer D. 
Merrill. Philipp. Jour. Sci. 2: Bot. 311-337. 15 Jl 1907. 
Comprises 102 species in 29 genera, 40 described as new 
Arechavaleta, J. Flora Uruguaya 3: 85-228. p/. zya-gr +f. 7, 2. 
1907, 
Anal. Mus. Nac. Montevideo, vol. 6. : 
Arthur, J.C. Cultures of Uredineae in 1906. Jour. Myc. 13: 189- 
205. 128 1907. 
Includes Uromyces effusus sp. nov., native of the eastern United States. 
Arthur, J.C. Peridermium pyriforme and its probable alternate host. 
Rhodora g: r94, 195. 13S 1907. 
Atkinson, G. F. & Edgerton, C. W.' Preliminary note on a new dis- 
®ase of the cultivated vetch. Science II. 26: 385, 386. 205 1907. 
Atkinson, G. F. & Edgerton, C. W. Protocoronospora, a new genus 
of fungi. Jour. Myc. 13; 185, 186. 12S 1907. 
Protocoronospora nigricans sp. nov., native of New York State. 
ley, W. W. The spurges. Am. Bot. 13: 7-9. S 1907. 
Baker, C.F. Determinations of Cuban Piperaceae. ‘Torreya'7: 201- 
203. 18 O 1907. 
ber, M.A. On heredity in certain micro-organisms. Kansas Univ. 
Sci. Bull. 4: 1-48. p/. r-g. Mr Ygo7. 
521 
