CATALOGUE. 
205 
dilated, lanciniate-pinnatifid, segments lanceolate-attenuate." Gray, Proc. 
Acad. Philad., Mar. 1863, j>. 69. — Flowers yellow or orange, turning purplish 
when dried. Leaves varying from narrowly linear to broadly lanceolate in 
outline, but always more or less laciniate. None of the specimens have 
ripened achenia, but the most advanced show a very short beak, one-fourtli 
as long as the achenium. This species and the next agree very closely in 
foliage, size of head, color of flowers, both fresh and dried, in the young 
achenia and in the nature of the pappus; even the long jointed hairs" at 
the summit of the tube of the corolla are alike in both ; so that the involu- 
cre, of unequal scales in one species and equal in the otlicr, and the longer 
or shorter beak of the mature achenium, seem to be tlie only remaining 
points of distinction. When both species sluill l>e 8lLi(lie(i lioni llic living 
plant with ripened achenia it is quite possilde that even these difrerences will 
disappear. Colorado, (354 Hall & Harbour, in part.) From the foot-hills 
near Carson City to the Uintas ; 5-7,500 feet elevation ; May-Septem- 
ber. (718.) 
424 Parry, 356 Hall & Harbour, and 361 Vasey belong to Yar. drmj- 
cephalus, T. & G. Involucre woolly, at least when young, tlie extecior scales 
spreading; leaves and scape often somewhat puljescent; receptacle some- 
times, but not always, furnished with a few hnear-acuminate chaify scales 
intermixed among the flowers."— Arctic America to Oregon and Colorado. 
Macrorkhynchus troximoides, T. & Gr. Perennial, smooth and some- 
what glaucous; leaves 4-10' long, 3-9" wide, linear-lanceolate or linear-spat- 
ulate, acuminate or obtuse and shghtly ajnculate, entire or laciniately ])innati- 
fid ; scapes 4-2*^ high ; involucre 6-10" long, the scales nearly equal, 
lanceolate from a broad base; achenia 10-ril)))e<l, at first shorter lliiin the 
pappus and scarcely beaked, at length produced into a slender beak two- 
thirds as long as the achenium proper, mid with it slightly or eonsi(hTabIy 
longer than the pappus.— Flowers oranire-eolor, lading to purplish. Tlie 
pappus is variable in fineness, one of the besl-inarkcd speeimens, with ros- 
trate achenia, having rather coarse and evidently flalteii.d l.risllrs. To Ihis 
species Dr. Gray has already referred Troxi?no?i roseum and T. jmrrijlorum, 
and it is not at all improbable that T. glaucum will eventually follow th(>m. 
Mountains of Colorado, (66 & 67 Parry, 355 Hall & Harbour, 359 Vasey,) 
to California, Oregon, and British America; Virginia City, (Bloomer.) 
