﻿112 PLANTS FENDLERIAN.3E. 



449. Stephanomeria runcinata, Nult. ; Torr. fr Gray, Fl. 2. p. 472. (Jamesia 

 pauciflora, Nees in Neuwied. Trav.) Foot of dry hills, Santa Fe ; June, July.* 



round with triangular rigid teeth ; the rameal leaves much smaller and oblong. Heads numerous in a broad 

 corymb, half an inch long. Corolla, &c, as in the foregoing. Bristles of the pappus copious, rigid, equally 

 serrulate from the base to the apex, not at all penicillate. — This plant is doubtless an Acourtia of De Candolle, 

 who, although he adopts the character " setis apice penicillatis " of Don, yet represents nothing of the kind 

 in the figure of A. hebeclada in Delessert's Icones. The copious pappus of this plant also differs from his 

 generic character in that the bristles certainly occupy more than one series. If, therefore, the characters of 

 the pappus of Acourtia are rightly laid down, this plant does not belong to that genus. If not, there remains 

 apparently no valid distinction between it and Perezia. 



* Stephanomeria elata, Null, in Jour. Acad. Philad. (n. ser.) 1. p. 173, from the character is evidently 

 the same as the earlier published S. virgata, Benlh. Bot. Voy. Sulph. p. 32. It also occurs in the Californian 

 collections of Coulter, Fremont, and of the Exploring Expedition. 



The Oregon collection made by the Rev. Mr. Spalding contains specimens of two very interesting Cicho- 

 raceae, which may be mentioned here, viz. an undescribed Calais, but which I suspect is the Hymenonema ? 

 glaucum of Hooker, and a new congener of Scorzonella (Ptilophora, Torr. fy Gray, ined.) nutans, Geyer, in 

 Hook. Lond. Jour. Bot. 6. p. 253. 



s Calais macroch.£ta (sp. now) : subscaposa, glabrata ; foliis linearibus acuminatis integerrimis vel saepius 

 remote pinnatilobatis subglaucis, junioribus villo molli caduco pubescentibus ; scapo apice furfuraceo ; invo- 

 lucri squamis extimis tertia parte brevioribus; acheniis lcevibus apice rostrato-attenuatis ; pappi paleis oblongis 

 apice bifidis arista ex sinu exserentibus triplo brevioribus. (Hymenonema ? glaucum, Hook. Fl. Bor.-Am. 1, 

 p. 300? & Scorzonella glauca, Null. ?) — Clearwater, on the Kooskooskee, Oregon, Mr. Spalding. — Root 

 annual. The smaller specimens, with scapes 6 or 10 inches high, exhibit entire leaves, much like those of 

 C. Iinearifolia. The larger, with scapes or peduncles 18 or 20 inches high, have broader and flat leaves, 

 which mostly bear three or four short lobes or salient teeth on each side. The foliage is scarcely glaucous. 

 The involucral scales are broadly lanceolate. The palese of the pappus are only five, just as in Calais, except 

 that they are shorter and the naked awn is longer. These points being more or less at variance with the little 

 that is known of Hooker's Hymenonema ? glaucum, I do not venture to employ that specific name, nor to 

 append it as a synonyme except with much doubt. — The shorter but long-awned palese of the pappus in this 

 species, along with the lanceolate involucral scales of Scorzonella § Ptilophora might naturally suggest the 

 propriety of uniting all these plants with Calais. This genus, however, consists of annual plants, with the 

 conspicuous palese of the pappus only five in number and convolute around the base of the corolla, and the 

 elongated achenium has a tapering or beaked summit. Scorzonella consists of tuberous-rooted perennials, 

 with the barely oblong achenia not at all narrowed above, and with a pappus of ten palese which are so short 

 as to appear merely like an abruptly dilated base to the long capillary awns. These are minutely denticulate : 

 while in the section Ptilophora (which, now confirmed by a second species, may be raised to the rank of a 

 genus, still more nearly allied to Scorzonera) the awns are plumose and from 14 to 22 in number. 



PTILOPHORA, Nov. Gen. 



v Involucrum 20- 40-florum, duplex; exterius brevius laxe calyculiforme, squamis ovato-subulatis ; interius 

 uniseriale, squamis lanceolatis sensim acuminatis. Receptaculum nudum, planum, subalveolatum. Ligulse 



