438 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bethel, E. ‘‘Red snow”’ in Colorado. Colorado Mag. 1: 159- 
162. My 1924. 
Bisby, G. R. Fungi from Central Manitoba. Mycologia 16: 
122-129. 31 My 1924. 
Blake, S. F. New American Asteraceae. Contr. U. S. Nat. 
Herb. 22: i-xi, 587-661. pl. 54-63. 1924. 
Boyce, A. M. How to teach the flower. Nature Mag. 3: 368— 
369. “Je’’ My 1924. [Illust.] 
Brink, R. A. The physiology of polien IJ. Further considera- 
tions regarding the requirements for growth. Am. Jour. 
Bot. 11: 283-294. 17 My 1924. 
Britton, N. L. Descriptive flora of Porto Rico and the Virgin 
Islands. Jour. N. Y. Bot. Gard. 25: 129-135. My 1924. 
Brown, N. A. An apple stem-tumor not crowngall. Jour. Agr. 
Research 27: 695-698. pl. 1-3. 1 Mr 1924. 
Brunson, A.M. The inheritance of a lethal pale green seedling 
character in maize. N. Y. (Ithaca) Agr. Exp. Sta. Memoir 
72: 1-22. pl. F. Ja 1924. 
Clute, W.N. Evolution in the garden. Gardeners’ Chron. Am. 
28: 170. Je 1924. 
Clute, W. N. The individuality of plants. Gardeners’ Chron. 
Am. 28: 141. My 1924. . 
Coker, W.C. The Clavarias of the United States and Canada. 
I-209. pl. I-92. Chapel Hill, ‘“‘1923”” My 1924. 
Comstock, A. B. The giant cactus or Suharo. Nature Mag. 
3: 364-365. ‘‘Je’’ My 1924. [Illust.] 
Cox, Ji ¥., & Megee, C. R. The clovers and clover seed pro- 
duction in Michigan. Mich. Agr. Exp. Sta. Special Bull. 
130: 1-23. f. 1-13. Mr 1924. 
Currey, J. A. Stem wilt in roses. Portland Roses and Flowers 
a: 4. My 1694. 
Dahlgren, B. E. A fossil flower. Field Mus. Nat. Hist. Bot. 
Leaflet 5: 1-16. f. I-10. 1924. 
