294 INDEX TO AMERICAN BOTANICAL LITERATURE 
Clute, W. N. The male fern. Fern Bull. 19: 97-102. [Ap 1912] 
[Illust.] 
[Clute, W. N.] Pteridographia. Fern Bull. 19: 119-124. [Ap 1912.] 
Includes notes on, (a) Ferns for the house; (b) Black spleenwort in America; 
(c) Crested ferns; (d) Crested marginal shield fern; (e) Living ferns found fossil. 
[Clute, W. N.] Rare forms of fernworts—XX. The forms of ebony 
spleenwort. Fern Bull. 19: 115-117. [Ap 1912.] [lIllust.] 
Cockayne, L. Some noteworthy New Zealand ferns. Plant World 15: 
49-59. f. 1-3. Mr 1912. 
Cockerell, T. D. A. The Colorado Tradescantia. Torreya 12: 89. 
17 Ap 1912. 
Cockerell, T. D. A. The red sunflower. Pop. Sci. Mo. 80: 373-382. 
Ap 1912. [Illust.] , 
Cogniaux, A. Orchidaceae—II. [In Ex herbario Hassleriano: Novi- 
tates paraguarienses. XIV.] Repert. Sp. Nov. 10: 343, 344. 20 F 
1912. 
Collins, F.S. The botanical and other papers of the Wilkes exploring 
expedition. Rhodora 14: 57-68. 8 Ap 19gI2. . 
Collins, F. S. The green algae of North America, supplementary 
paper. Tufts College Stud. 3: 69-109. pl. 1, 2. Ap 1912. 
Includes several new species, varieties, and combinations. 
Collins, F. S. The marine algae of Casco Bay. Proc. Portland Soc. 
Nat. Hist. 2: 257-282. 1911. 
Cook, O. F. Phenotypes, genotypes, and gens. Science II. 35: 654° 
656. 26 Ap 1912. 
Coulter, J. M. Modern aspects of paleobotany—IlI. 
paleobotany to botany. 1. Phylogeny and taxonomy. Am, ha 
46: 215-225. Ap 1912. 
Dachnowski, A. The successions of vegetation in Ohio lakes and peat si 
deposits. Plant World 15: 25-39. F 1912. an 
Dowell, C. P. Our forest trees. Proc. Staten I. Assoc. 3+ 144-147- 
15 F 1912. oe 
Dowell, P. Additions to the flora of Staten Island. Proc. Staten 
Assoc. 3: 156-162. 25 Ap 1912. 
Dowell, P. Notes on some Staten Island ferns. Proc. Staten I. : 
3: 163-168. . 25 Ap 1912. ee 
Dox, A. W. Enzyme studies of lower fungi. Plant World 15: 4% 
F 1912. ee vy. 
East, E. M. A study of hybrids between Nicotiana Bigeloott and 
‘quadrivalvis. Bot. Gaz. 53: 243-248. f. 1-4. 15 Mr 19% ‘for’ 
Emerson, R. A. Production of a white bean lacking the 
Pe Ly Gee SE A Pc re aan eS Te VIG 22h) can eT 
The relations of 5 ie 
Nate 
