NEW OR NOTEWORTHY SPECIES. 171 
naked stem): pubescence scanty, curled-hairy rather than 
fine and lanate or tomentose: heads 3 or 4 times as large as 
in S. lugens, more than twice as numerous, and the corymb 
compound; bracts of the involucre more thick and fleshy, 
scarcely black-tipped: mature achenes light-colored, scarcely 
angled or even striate. 
A variable species, as to breadth and dentation of foliage, 
but otherwise of constant characters, especially as to root, 
heads and inflorescence. Specimens quite agreeing with 
Hooker’s figure are common in herbaria, from the region 
already indicated; sheets of Dawson’s collecting in British 
Columbia in 1888 seem typical, but others from adjacent 
U.S. territory are as good; often labeled as if taken for 
S. exaltatus, Nutt., which is again very different by its long 
and long-petioled thin leaves, far smaller and much more 
numerous heads, etc., as Nuttall himself indicated. 
"4 SENECIO PETROPHILUS. S. petraus, Klatt. in Abh. Naturf. 
Ges. Halle. xv. 330 (1882), not of Boissier & Reuter, Pugill. 
Plant. Nov. 59 (1852). It is apparent that Klatt's specific 
name for this fine species of the higher Rocky Mountains 
must subside, since it belongs by thirty years of priority to 
a Senecio of the Old World. 
GERANIUM Lawarorsr. Annual, erect, slender, 1 or 2 feet 
high, branched at summit only, and somewhat dichoto- 
mously, the growing parts canescent with white hairs, these 
deflexed on the stem, but on the foliage scattered and ap- 
pressed, gland-tipped hairs wholly wanting, but the inflores- 
cence minutely granular: leaves of rounded outline, with 
cuneate basal sinus and 7-parted, the segments subdivided 
into oblong abruptly acute lobes and teeth : petals small, 
rose-color, cuneate-oblong, obtuse or acutish, or rarely trun- 
cate, about 2 lines long and scarcely equalling the sepals: 
seeds dark brown, short-ovoid or almost spherical, delicately 
but quite distinctly reticulate. 
