394 Index to American botanical literature 



Cockerell, T. D. A. Botanical nomenclature. Nature 70 : 318, 319. 



4 Au 1904. 

 Cockerell, T. D. A. The roses of Pecos, New Mexico. Proc. Acad. 



Nat. Sci. Phila. 56 : 108-112. 2 Mr 1904; 113-118. 7 Mr 1904. 



Cogniaux, A. Orchidaceae — VIIL Flora Bras. 126: 1-202. pL 

 1-42. 15 F 1904. 



The beginning of the third volume devoted to Orchidaceae, There are new species 

 in Maxillaria (2), Ornithtdium^ Warmingia^ Notylia (3), and Centroglossa, 



y 



Cufino, L* Pugillus cryptogamarum canadensium. Malpighia 18 : 

 559-562. 1904. 



Daguillon, A. & Coupin, H. Observations sur la structure des glandes 

 p^tiolaires d^ Hevea hrasiliensis. Rev. Gen. Bot. 16 : 81-90. /. 

 23-15. 15 Mr 1904. 



Dammer, U. The species of Chamaedorea with simple leaves. Gard. 

 Chron. III. 36: 202. 17 S 1904; 245, 246. i O 1904. 



With descriptions of 6 new species, natives of Mexico, Costa Rica, and Peru, 



Dams, E. Echinocactus cataphractus n. sp. Monats, Kakteenk. 14 • 

 172. 173- 15 N 1904. 



Probably native of Paraguay. 



Dams, E. Echinocactus Wislizcni Eng. Monats. Kakteenk. 14: 

 184, 185. 15 D 1904. [Illust,] 



Dams, E. Formen des Echinocactus capricorniis Dietn Monats. 

 Kakteenk. 14: 183, 184. 15 D 1904, [Illust.] 



Dams, E. Eine Sammelreise in Arizona. Monats. Kakteenk. 14 = 

 179-182. 15 D 1904- 



Dominguez, J. A. Note sur deux gommes de la Republique Argentine. 

 Revista Farmac. 44 : 5-11, 35-37- 1904. 



Drummond, A. T. Origin of plants common to Europe and America. 

 Nature 70 : 55. 19 My 1904. 



Harshberger, J. W. The comparative age of the different floristic 

 elements of eastern North America. Proc. Acad. Nat. Sci. Phila. 



56:601-615.' 19 O 1904. 



Hartman, E. Ceretis Weingartia?tus. Monats. Kakteenk. 14 : i55- 

 15 O 1904. [Illust,] 



A new species, native of Haiti. 



Hicken, C. M. Doctor Rodulfo Amando Philippi : breves apuntes 

 biograficos. Anal. Soc. Cient. Argent. 58: 145-151. /<7r/m/- O 



1904. ■ 



jUer, I. A. Summer activity of some spring flowers. 

 Nat. Sci. Phila. 56; 481-483. 23 Jl 1904. 



Proc. Acad 



