Vol. XVI, pp. 29-30 March 19, 1903 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWO NEW PLANTS FROM NEW MEXICO. 



BY AVEN NELSON. 



Mr. and Mrs. Cockerell in their many collecting trips within 

 the confines of New Mexico secure numerous specimens of great 

 interest because of their limited representation in the herbaria 

 or because of the fuller knowledge gained of the limits and 

 variation of the species. As might be expected, in so large 

 and even yet imperfectly understood a field as New Mexico, 

 novelties are secured from time to time. The collectors have 

 permitted the writer to study many of their numbers. Two of 

 these are now proposed as new species. 



Nyctaginia Cockerellae, n. sp. 



Perennial, decumbent-spreading, with assurgent branches, 3-5 dm. 

 high; stems and branches somewhat furrowed or angular, rough glandu- 

 lar-pubescent especially upward; leaves triangxilar-hastate, 4-9 cm. 

 long, somewhat fleshy, rough-pubescent or glabrate, mostly acute at 

 apex, the margin irregular, abruptly contracted to the rather stout peti- 

 ole which is about half the length of the blade; involucre 8-12 flowered; 

 its bracts linear-lanceolate, about 1 cm. long; calyx about 28 mm. long, 

 trumpet-shaped; its long slender tube pale-green, clammy glandular- 

 hairy; its limb of 6 short plicate emarginate crimson-scarlet lobes; sta- 

 mens usually 6 (rarely 8), exserted some 12-13 mm. ; the slender fila- 

 ments united with the tube from the throat down; style exceeding the 

 stamens and like them magenta colored; fruit lightly ribbed. 



11— Pboc. Biol. Soc. Wash. Vol. XVI, 1903. (28) 



