SOME ERIGERON SEGREGATES. 205 



some one in more recent times ; but southward in the middle 

 and southerly extensions of these mountains there are evidences 

 of species not yet named. 



Erigeron regaus. In size, form, even leaf-outline, 

 mostly precisely imitative of E. callianthemus , yet as to tex- 

 ture and color of foliage widely different ; leaves as thin as in 

 E, membranaceous, yet not dark but light-green, at the same 

 time with nothing of the glaucous or blue-green of E. callian- 

 Ihemtis, the basal ones with blades elliptic and acute, tapering 

 to long winged petioles, marginal pubescence scanty and un- 

 equal, that of the stem as scanty, fine, spreading or ascend- 

 ing : heads 2 or 3, very large ; bracts of involucre more equal, 

 broader, shorter, not much disposed to curve at tip, densely 

 beset with minute gland-tipped strigose hairs ; rays ample, 

 apparently pale purplish or pinkish : achenes villous-strigu- 

 lose. 



This fine species was first collected by Bolander in 1866. in 

 the Yoseraite Valley, his n. 5029, according to the sheet now 

 before me, and in Asa Gray's hand labelled Aster salsugu 

 rwsus. More perfect specimens are those of Coville & Funston 

 from Mineral King, n. 1409 of the Death Valley Exp., and 

 the same with narrower foliage, also from Mineral King, is 

 their n. 1472. 



Erigeron petioi^aris. Tufted perennial, with solitary 

 monocephalous stem from each branch of the caudex, the 

 whole 6 to 10 inches high ; basal leaves quite erect, 1/4 to 3 

 inches long, the broad winged petiolar part of from twice to 

 four times as long as the somewhat obovate to oblanceolate 

 laminar part, both faces as well as the stem hirsutulous with 

 fuscous rather than whitish hairs, and the leaves somewhat 

 viscid-glandular under the pubescence, cauline leaves very nar- 

 row, but both frequent and long, very erect, almost appressed 

 to the stem: head short-peduncled, rather large, 1% inches 

 wide from tip to tip of the broad blue rays ; bracts of invol- 



