Index to American botanical literature 355 



Burgess, E. S. Species and variations of Biotian asters, with discus- 

 sion of variability in Aster. Mem. Torrey Club 13: i-xv. 1-419. 

 /. 1-708. 15 Mr 1906. 



Descriptions and illustrations of 84 species, of which 58 are described as new. 



Cannon, W. A. Biological relations of certain cacti. Am. Nat. 40 : 

 27-47. f. 1 -1 4. 20 Ja 1906. 



Cannon, W. A. Two miles up and down in an Arizona desert. 

 Plant World 9 : 49-55. /. 7. Mr 1906. 



Cardiff, I. D. A study of synapsis and reduction. Bull. Torrey Club 

 33 ' 271-306. //. 12-13. 13 Je 1906. 



Chamberlain, C. J. Megaspore or macrospore. Science II. 23 : 819. 



25 My 1906. 



Claassen, E. Corrections to the key to liverworts. Ohio Nat. 6 : 

 503. 14 Ap 1906. 



Claassen, E. Key to the species of liverworts recognized in the sixth 

 edition of Gray's Manual of Botany. Ohio Nat. 6 ; 530-540. 14 

 My 1906. 



Clarke, C. B. Cyperaceae duae novae brasilienses. Repert. Nov. Sp. 

 2 : 145. 1 My 1906. 



Descriptions of new species in Cryptangium and Lagenocarpus. 



Clarke, C. H. Mosses at the Congress of New England Natural His- 

 tory Societies. Bryologist 9: 25, 26. 3 Mr 1906. 



Clute, W. N. The author citation. Fern Bull. 14: 46-48. Ap 

 1906. 



Clute, W. N. The coral mushroom and its allies. Am. Bot. 10 : 

 21-24. F 1906. [Illust.] 



Clute, W. N. The defenses of the cock-spur thorn ; another interpre- 



tation. 



/. 60. [Ja 1906.] 



ute, W. N. The forms of the cinnamon fern. Fern Bull. 14 : 44. 

 45- Ap 1906. 



ute, W. N. The fruiting of the papaw. Am. Bot. 9 : 81, 82. My 

 1906. [Illust.] 



ute, W. N. The giant puffball {Calvatia giganta 

 10: 1-4. [F] 1906. [Illust.] 



). Am. Bot. 



Clute, W. N. How to begin botany. Am. Bot. 10 : 89-93- M y 

 1906. 



Clute, W. N. Naming the ferns without a book. Am. Bot. 10: 

 101-106. Je 1906. [Illust.] 



