CATALOGUE. 115 
ing from the root; radical leaves on petioles an inch long, ternately divided 
and many-cleft; segments linear, obtuse, cauline, 3-5-parted. Petals small, 
1-2” long, spatulate, equalling or exceeding the sepals —Colorado (703, 
876). 
Acrivonia Evparoria, L.—Collected by Professor Loew, but neither 
date nor locality given. Probably from Arizona or New Mexico. 
Rosa Bianpa, Ait. Colorado (391); Utah. Var. # (FI. N. Am. T. & 
G. 1, p. 460).—With leaflets smaller and some of them puberulent beneath ; 
appendages to the calyx-lobes are also somewhat smaller than in the average 
ft. blanda. From the solitary specimen I have I should be inclined to con- 
sider it a distinct species — Willow Spring, Arizona, at an altitude of 7,195 
feet (236). 
Rosa Arxansana, Porter (Fl. Col., p. 38).—“Stem stout, erect, leafy, 1° 
high, glabrous and glaucous, armed with weak, deciduous, bristly prickles ; 
leaflets 9-11, ovate and oblong-ovate, 1’ or more in length, acute or 
obtuse, glabrous, sharply serrate ; midrib and long stipules somewhat prickly 
and minutely glandular; flowers numerous, terminal, corymbed on pedun- 
cles, about ¥’ long; fruit globose, smooth, glaucous; calyx-segments 
ovate, reflexed in fruit, with terminal and sometimes lateral appendages, 
more or less glandular and tomentose-pubescent on the margins; petals 
broadly obcordate or emarginate, longer than the calyx-segments; flower 
2’ in diameter” (Porter, /. ¢.). This, as remarked by Professor Porter, 
may only be an extreme form of R. blanda; to which it has been referred 
by Crepin —Twin Lakes, Colorado (390). 
Rosa FraxinIFouis, Bork.—Differs from R. blanda chiefly in the greater 
size of its leaflets and fruit; the former being sometimes 14’ long and 
1’ wide, and the latter “6-8” in diameter”. The flowers are also larger 
and the pubescence greater, though in these respects this species varies 
widely. I am indebted to Dr. Vasey for calling my attention to the fact 
that this (393), which I had placed under R. blanda in the Enumeration of 
Colorado Plants (1874), is a different species. This is now placed by Mr. 
Watson, in Index Am Bot. p. 312, under R. Nutkana, Presl.—Colorado. 
capitate, single ovule ascending from the base of the cell; radicle superior—Glandular pilose herbs 
with woody bases, and with short, leafy branches. Stipules adnate to the petiole. Flowers white or 
purple.—BENTHAM & HOOKER. 
