504 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bicknell, E. P. The ferns and [flowering plants of Nantucket—XVIII. 
Bull. Torrey Club 44: 369-387. 10 Au 1917;— XIX. Bull. Torrey 
Club 45: 365-383. 20S 1918. 
Includes Quercus rufescens sp. nov. 
Bisby, G. R., & Tolaas, A. G. Copper sulphate a disinfectant for 
potatoes. Phytopathology 8: 240, 241. 11 My 10918. 
Blakeslee, A. F. Unlike reaction of different individuals to fragrance 
in Verbena flowers. Science II. 48: 298, 299. 20S 1918. 
Boas, H. M. The relationship between the number of sporophylls 
and the numbers of stamens and pistils—a criticism. Bull. Torrey 
Club 45: 343-345. 9S 1918. 
Boyce, J. S. Imbedding and staining of diseased wood. Phytopath- 
ology 8: 432-436. Au 1918 
Brenckle, J. F. North Dakota fungi—II. Mycologia 8: 199-221. 
Jl 1918 
Hendersonia Crataegi sp. nov. is described and 9 new species in various genera 
are listed. : 
Britton, E. G. Jagerinopsis squarrosa, n. sp. Bryologist 21: 48-50. 
pl. 24. 30 Jl 1918. 
Britton, N. L. The botany and plant products of northern South 
America. Jour. N. Y. Bot. Gard. Ig: 182-185. Au 1918. 
Published also in Science II. 48: 1 56. rg18. 
Brown, J. G. Abnormal conjugation in Spirogyra. Bot. Gaz. 66. 
269-271. f. I-3. 16S 1918. 
Buchanan, R. E. Studies in the classification and nomenclature of the 
bacteria—VII. The sub-groups and genera of the Chlamydo- 
~ bacteriales. Jour. Bact. 3: 301-306. My 1918. 
Buchholz, J. T. Suspensor and early embryo of Pinus. Bot. Gaz. 
66: 185-228. pl. 6-10+f. I-3. 165 1918. 
Campbell, D. H. Studies on some East Indian Hepaticae. Ann. Bot. 
* 319-338. pl. 8, o+f. I-10. Jl 1918. 
Dumortiera calcicola sp. nov. is described. 
Clute, W. N. The barberry and the wheat rust. Am. Bot. 24: 85-87. 
Au 1918. 
Clute, W. N. Flowers of varying colors. Am. Bot. 24: 103-105. 
Au 1918. 
[Clute, W. N.] Noteandcomment. Am. Bot. 24: 106-113. Au1g18. 
Includes notes on Sedum ternatum in Illinois, = flowers in autumn, Wilting 
of cut flowers, Kochia alata, Odor of Amelanchier, et 
[Clute, W. N.] Two forms of leaves on oe same plant. Am. Bot. 24. 
IoI, 102. Au 1918. [Illust.] 
