66 _ BOTANICAL GAZETTE [JULY 
or subopposite pinnae 5-10 mm. long; stipules linear-subulate: 
flowers not in condition but evidently pale or ochroleucous: calyx 
tube narrowly campanulate, 5 mm. long, the subulate teeth half as 
long: pod glabrous, strictly 1-celled, dorsiventrally flattened, some- 
what keeled by both sutures, linear-oblong, acute at both ends, 20-30 
mm. long, 3-4 mm. broad; stipe from scarcely longer to twice as 
long as the calyx tube: ovules about 10, the alternate ones appar- | 
ently aborting; seeds flat, nearly as broad as the pods. 
Allied to A. lonchocarpus Gray, from which it is at once distinct by its 
solid (not fistulous), slender stem, its smaller flattened pod on a much shorter 
stipe. Secured by E. P, WALKER? on dry foothills, Paradox Valley, Colorado, 
June 24, 1912. 
VIoLa SHELTONII biternata, n. comb.—V. biternata, Greene, Pl. 
Baker. 3:12. 1901; V. Sheltonii Rydb., FI. Col., not Torr. 
Mr. Payson’s specimens make it evident that a form of the far western 
V. Sheltonii does occur in the Rocky Mountains. While it is not strongly 
marked, it would seem best to keep it as a geographical variety. 
Chylisma Walkeri, n. sp.—Very slender annual 1-2 dm. high, 
including the fruiting raceme which is more than half the plant: 
ena simple, or sparingly branched above, minutely glandular- 
long white scattering spreading hairs: 
capsules large for the plant, 
s large, lance-oblong. 
ied to C, Scapoidea (Nutt.) Small, and to C. Parryi (Wats.) 
mee Separated from both by the glandular puberulence and the 
small flowers, the latter in e i . 
: , very way suggesting one of the small-flowere 
Species of § bhaerostigma - : 
E, P, WaLKeEr’s no. 200, Paradox 
type and was Secured on dry “gyp” hill 
me *Mr. Watxer ¢ 
Vicinity of his home, 
Valley, Colorado, July 1, 1912, is the 
8. 
ollected quite extensi 
vely for the University of Wyoming, in the 
Paradox Valley, 
southwestern Colorado, during the season of 1912- 
