112 , PLANTE FENDLERIANE. 
449, SrepHanomerta runcinaTA, Nutt.; Torr. § Gray, Fl. 2. p. 472.  (Jamesia 
pauciflora, Nees in Neuwied. Trav.) Foot of dry hills, Santa Fé; 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, Nutt. in Jour. Acad. Philad. (n. ser.) 1. p. 178, from the character is evidently 
the same as the earlier published S. virgata, Benth. 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- 
race, 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. §- Gray, ined.) nutans, Geyer, in 
Hook. Lond. Jour. Bot. 6. p. 253. 
CaLals MacRocHzra (sp. nov.): subscaposa, glabrata ; foliis linearibus acuminatis integerrimis vel szpius 
remote pinnatilobatis subglaucis, junioribus villo molli cadueo pubescentibus; scapo apice furfuraceo; invo- 
lucri squamis extimis tertia parte brevioribus; acheniis levibus 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, Nutt. ?) — 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. linearifolia. 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 palez 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 palez 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 paleze 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 pale 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. 
Involucrum 20 -40-florum, duplex; exterius brevius laxe calyculiforme, squamis ovato-subulatis; interius 
uniseriale, squamis lanceolatis sensim acuminatis. Receptaculum nudum, planum, subalveolatum. Ligule 
