INDEX TO AMERICAN BOTANICAL LITERATURE 215 
Campbell, D.H. Studies on the Ophioglossaceae. Am. Nat. 41: 139- 
159. f. 1-77. 29 Mr 1907. : 
Claes, F. Habitat of Odontoglossum crispum. Orch. Rev. 15: 36, 
a7... F 1907 ¢ 79, 80... Mr 1907. 
Clute, W. N. ‘The advent of spring. Am. Bot. 12: 4-8. F 1907. 
Clute, W. N. Some inconspicuous flowers. Am. Bot, 12: 33-36. 
Cockerell, r. D. A. Note on atradescantia. Zvradescantia universit- 
atts. Muhlenbergia 3: 54. 28 Mr 1907. 
Collins, F.S. Is Rhinanthus Crista-galii an introduced plant? Rho- 
dora g: 26. 25 F 1907. 
Cook, M. T. The embryology of Sagittaria lancifolia L. Ohio Nat. 
7: 97-101. pil. 8. 12 Mr 1907. 
Copeland, E. B. The comparative ecology of San Ramon Polypodt- 
aceae. Philipp. Jour. Sci. 2: Bot. 1-76. p/. 1-4. Ja 1907. 
Cotton, A. D., and others. Plants from Labrador. Kew Bull. Misc. 
Inf. 1907: 76-88. Mr 1907. 
Dalgity, A.D. The common bracken as food. Am. Bot. 12: 25- 
29. pl. +f. 7. Mr 1907. 
DeVries, H. Luther Burbank’s ideas on scientific horticulture. Cen- 
tury Mag. 73: 674-681. Mr 1907. [Illust.] 
Diederichsen, J. Ueber die Kakteen in Nordamerika, ihre Verbreit- 
ung und Vergesellschaftung. Monats. Kakteenk. 17: 20-23. 15 
F 1907. 
Dihm, H. Das Blatt der Gattung or (Sabiaceen) in anatom- 
ischer Hinsicht. Beih. Bot. Centr. 21°: 117-147. pl. 5,6. 1 Mr 
1go7. . 
Contains notes on 15 American species. 
Dobbin, F. Early blossoms. Am. Bot. 12: 37-39- Mr 1907. 
Edwards, A. M. Origin of a fossil lake in New Jersey and identifica- 
tion of it by the Baci//aria in it. Nuova Notar. 18: 39-48. Ja 
1907. 
Evans, A.W. The genus Ca/yfogeia and its type species. Briclo: 
gist 10: 24-30. 1 Mr 1907. 
Fernald, M. L. The alpine Rhinanthus of Quebec and New Hamp- 
Shire. Rhodorag: 23-25. 25 F 1907. ee 
Includes description of 7. odlongifolius sp. nov. 
Fernald, M. L. Doctor Sarrasin of Quebec. Jour. Bot.. 45: 317, 
118. 1 Mr 1907. ‘ 
