Vol. XXVI, pp. 203-204 October 23, 1913 



PPxOCEEDINGS 



01 mii: 



BIOLOGICAL SOCIETY OF WASHINGTON 



SOME PLANTS FROM NEW MEXICO. 

 BY T. D. A. COCKERELL. 



When in the Rito de los Frijoles, New Mexico, last year, I 

 noticed a very beautiful Oenothera, not quite like anything I 

 had seen. As it was too early to obtain seed, I brought home 

 ;i small living plant in flower and put it in the garden. It 

 produced a small amount of seed; but instead of dying, wintered 

 over, and has this year grown to a great size and flowered pro- 

 fusely. It will yield enough seed to supply everyone interested 

 in growing Oenothera, and will afford a new type to use in 

 hybridization experiments. It seems, therefore, desirable to 

 give it a name. 



6 



Oenothera hookeri hewetti subsp. now 



riant very large, spreading, about i feet high, and spreading 43^ feet; 

 stem and branches red, at full maturity the upper parts of the long 

 branches, while closely beset with fruits, net appearing leafy, the bracts 

 being reduced to less than the length of the capsules; leaves repand- 

 denticulate, of the type of 0. hookeri, only very sparsely pubescent, 

 grayish -green ; upper bracts much longer than fruits, apparently not 

 deciduous; fruits as in the biennis group, hut net contracted at apex, 

 greyish, slightly speckled or streaked with red, finely pubescent, with 

 scattered longer hairs intermixed; seeds angled; buds stent, distinctly 

 4-angled, colored with red, exactly as in 0. rubrinervia as figured by 

 Gates, Zeits. f. indukt. Abst. und Vererbungsl. 1911, IV, pi. VI, f. 4; 

 sepals nut separate when reflexed, the tips sometimes free as much as 

 P) mm.; branches tough and hard to break, nut brittle as in 0. rubri- 

 nervis ; calyx tube in fully developed flower 37 mm. long; petals bright 

 yellow, turning slightly reddish in fading; petals about 38 mm. long and 

 40 broad, not distinctly emarginate, though appearing so from folding in 

 the opening flower-; total length of pistil 78 mm., extending about 13 



53— Proc. Biol. Soc. Wash., Vol. XXVI, 1913. (203) 



