44 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bradshaw, R. V. Wildflowers of the Oregon coast. Am. Bot. 26: 
84-87. Au 1920. 
Brandes, E. W. Mosaic disease of corn. Jour. Agr. Research 19: 
517-521. pl. 95-96. 16 Au 1920 
Bresadola, G. Selecta mycologica. Ann. Mycol. 18: 26-70. 1920. 
Includes 2 new genera and 45 new species from America. 
Britton, E.G. ‘‘ Disappearing wild flowers.’’ Torreya 20: 101. 1920. 
Britton, N. L., & Rose, J. N. The Cactaceae. Vol. II. Carnegie 
Inst. Wash. Publ. 2487: 1-239. pl. 1-40 + f. 1-305. 9S 1920. 
Includes 19 new genera and 48 new species. 
Brown, E. D. W. Apogamy in Osmunda cinnamomea and O. Clay- 
tontana. Bull. Torrey Club 47: 339-345. f. 1-10. 5 O 1920. 
Brown, F. B. H. The silicious skeleton of tracheids and fibers. Bull. 
Torrey Club 47: 407-424. f. 1-5. 20 O 1920. 
Brown, J. S. Subcortical formation and abnormal development of 
stomata in etiolated shoots of Opuntia Blakeana. Bot. Gaz. 70 
295-307. pl. 27-30. 4 fds. AS O 1920. 
Burns, G. P. Tolerance of forest trees and its relation to forest succes- 
sion. Jour. For. 18: 610-615. O 1920. 
Carleton, M.B. The soap nut tree. Am. For. 26: 621. O 1920. 
Cheyney, E. G. Preliminary investigation of Ribes as a controlling 
factor in the spread of white pine blister rust. Science II. $2: 442- 
345. 8 O 1920. 
Child, C. M., & Bellamy, A. W. Physiological isolation by low tempera- 
ture in Bryophyllum. Bot. Gaz. 70: 249-267. f. 1-6. 19 O 1920. 
[Clute, W. N.] Cold deserts and dry deserts. Am. Bot. 26: 97. Au 
1920. 
Clute, W. N. The desert trumpet flower. Am. Bot. 26: 77-79. Au 
1920. 
Cockerell, T. D. A. A new form of Stanleya. 
1920. 
S. glauca latifolia, from Kansas. 
Torreya 20: I01, 102. 
Coker, W. C. Azalea atlantica Ashe and its variety luteo-alba n 
Jour. Elisha Mitchell Sci. Soc. 36: 97-99. pi..7, 7. °S t20. 
Coker, W. C., & Couch, J.N. A new species of Achlya. Jour. Elisha 
ateng Sci. Soc. 26: 100, 101. S 1920 
a Orion, from North Carolina 
- Var. 
PST J. E. Early stem anatomy of Todea barbara. 
Bot. Gaz. 70: 
294. pl. 23-26. 19 O 1920 
