122 INDEX TO AMERICAN BOTANICAL LITERATURE 
Blake, S. F. Notes on the systematic position of Clibadium with de- 
melas of some new species. Contr. Gray Herb. Harvard Univ. 
1-8. S 1917. 
Incl udes Clibadium See ice C. strigillosum, C. Sprucei, C. polygynum and . 
C. divaricatum, spp. n 
Blake, S. F. A revision of the genus Dimerostemma Cass. Contr. 
Gray Herb. Harvard Univ. 52: 8-16. S 1917. 
Dimerostemma asperatum sp. nov. is described. 
Blake, S. F. Two new polygonums from New England. Rhodora 
19: 232-235. 21 N 1917. 
Polygonum achoreum and P. allocarpum, spp. nov. 
Blake, S. F. The varieties of Chimaphila umbellata. Rhodora 1g. 
237-244. 5 D 1917. ; 
Bourquin, H. Starch formation in Zygnema. Bot. Gaz. 64: 426-434. 
p27. 16 N ro17. 
Brooks, C., & Cooley, J. S. Effect of temperature aération and hu- 
-midity of Jonathan-spot and scald of apples in storage. Jour. Agr. 
Research 11: 287-318. pl. 32, 33 +f. 1-23. 12 .N 1917 
Brooks, S.C. Permeability of the cell walls of Allium. Bot. Gaz. 64: 
509-512. 18 D 1917 
Brown, M.M. The development of the embryo-sac.and of the embryo 
in Phaseolus vulgaris. Bull. Torrey Club 44: 535-544. pl. 25, 206. 
27 D 1617; 
Brown, P. E. The importance of mold action in soils. Science II. 
46: 171-175. 24 Au 1917. 
Brown, W. H., & Heise, G. W. The application of photochemical 
temperature coéfficients to the velocity of carbon dioxide assimila- 
tion. Philip. Jour. Sci. 12: (Bot.) 1-25. f. 1-3. Ja 1917. 
Brush, W. D. Distinguishing characters of North American sycamore 
woods. Bot. Gaz. 64: 480-496. pl. 32-38 + f. 1-3. 18 D 1917. 
Buchanan, R. E.. Studies on the nomenclature and classification of the 
bacteria. Jour. Bact. 2: 603-617. N 1917. 
Burt, E. A. Merulius in North America. Ann. Missouri Bot. Gard. 
4: 305-362. pl. 20-22 + f. 1-39. N 1917. * 
Includes descriptions of sixteen new species. 
Choate, H. A. The earliest glossary of botanical terms. Torreya 17: 
186-201. 30 N 1917. 
Clute, W. N. Botany and common names of plants. Science II. 46: 
483, 484. 16 N 1917. 
Colley, R. H. Diagnosing white-pine blister-rust from its mycelium. 
Jour. Agr. Research 11: 281-286. pl. 31 +f. 1. 5N 1917. 
