134 INDEX TO AMERICAN BOTANICAL LITERATURE 
Briggs, L. J., & Shantz,H.L. The wilting coefficient and its indirect 
determination. Bot. Gaz. 53: 20-37. 17 Ja 1912. 
Britton, N. L. Studies of West Indian plants—IV. Bull. Torrey 
Club 39: 1-14. 10 F 10912. 
Includes descriptions of 20 new, species in Dendropanax (5), Cameraria (2), Aca- 
lypha (1), Actinostemon (1), Clusia (1), Maytenus (1), Portlandia (2), Rondeletia (1), 
Bidens (1), Mettenia (1), Clerodendron (1), Pseudocarpidium (1), Elaeagia (1), and 
Ginoria (1). 
Britton, N. L., & Rose, J. N. Undescribed species of Cuban cacti. 
Torreya 12: 13-16. 22 Ja 1912. 
Pereskia cubensis, Opuntia cubensis, Cephalocereus Brooksianus, Leptocereus Leoni, 
L. arboreus, Coryphantha cubensis, and Cactus Harlowii spp. nov. 
Brown, W. H. Soil and soil problems from standpoint of botanist. 
Rep. Michigan Acad. Sci. 13: 52-54. IQII. 
Chamberlain, C. J. Morphology of Ceratozamia. Bot. Gaz. 53: 
1-19. pl. +f. 1-7. 17 Ja 1912. 
-Clinton, G. P. Report of the botanist for 1909 and 1910. Rep. Con- 
necticut Agr. Exp. Sta. 1909, 1910: 713-774. pl. 33-40. 1910. 
Includes ‘‘Notes on plant diseases of Connecticut”’ and ‘‘Oospores of potato 
blight, Phytophthora infestans.” 
Clute, W. N. Drymoglossum carnosum. Fern Bull. 19: 65-67. [Ja 
1912.]  [Illust.] 
Clute, W. N. The effect of habitat on Ophioglossum. Fern Bull. 19: 
71, 72. Ua 19t2.] 
[Clute, W. N.] Pteridographia. Fern Bull. 19: 84-90. [Ja 1912.] 
Includes notes on (a) Pellaea gracilis on sandstone, (b) Trinomial fern names, 
(c) Sporting of polypody, (d) Fertilization in ferns, (e) Distribution of Schizaea, (f) 
Nephrolepisissimus, (g) A curious Panama fern, and (h) Nephrolepis muscosa. 
[Clute, W. N.] Rare forms of fernworts—XIX. Blechnum Spicant 
bipinnatum. Fern Bull. 19: 72-74. [Ja 1912.] [Illust.] 
Conklin, G. H. Brief notes on the distribution of Hepaticae. Bry- 
ologist 15: 11, 12. Ja 1912. 
Cook, O. F. Dimorphic leaves of cotton and allied plants in relation 
to heredity. U.S. Dept. Agr. Plant Ind. Bull. 221: 1-59. pl. I-5+ 
j. 1-18. 22 N 1011: 
Costerus, J. C., & Smith, J. J. Studies in tropical teratology. Ann. 
Jard. Bot. Buitenzorg 9?: 98-116. pl. r8-22. 1911. 
Coulter, J. M. The history of gymnosperms. Pop. Sci. Mo. 80: 197- _ 
203. -F roi. 
Coulter, J. M., & Chamberlain, C. J. Morphology of gymnosperms. 
1-458. f. 1-462. Chicago. O 1910. 
Davis, V. H. Weeds. [Ohio State] Agr. Coll. Extension Bull. 7: 
3-13. N 1911. [Illust.] 
