74 PLANTE FENDLERIAN®. 
nerviis, caulinis obtusis deorsum attenuatis; involucro hemispherico vix pedunculato; 
ligulis 10-12 lineari-oblongis, fl. hermaph. circiter 30; acheniis junioribus turbinatis 
sericeo-villosis disci et radii pappo conformi donatis, e paleis 5 — 6 ovatis brevissimis pl. m. 
coroniformi-concretis. — Low prairie, from the,Upper to the Middle Spring of the Cimar- 
ron; Aug. (527.)— Plant a span to a foot high, slightly glandular-scabrous, divergently 
much branched, very leafy. Cauline leaves less than an inch long. Heads about as 
large as those of Amphiachyris dracunculoides; the rays rather large, and spreading. 
Receptacle conical, alveolate-dentate. Pappus shorter than the ovary, or than the proper 
tube of the corolla; that of the rays_ similar, or very little smaller. — This species, and 
the nearly allied Hemiachyris glutinosa, Schauer in Linnea, 19. p. 724 (or at least a 
plant of Coulter’s Mexican collection which I take to be that species, notwithstanding it 
presents an evident, though smaller, pappus in the ray), agree with Hemiachyris, DC., in 
the short and somewhat coroniform pappus, and in the solitary heads; but differ from 
Texana, DC., in having a pappus also in the ray; and thus confirm the propriety of re- 
ducing that genus to a section of Guttierrezia.* 
+344, AmpHIACHYRIS pRacuNcuLowES, DC.; Torr. § Gray, 1. c. High prairies, 
near the upper ferry of the Kansas River; Sept. (528.) — Cultivated in the Botanic 
Garden, this proves to be quite an ornamental plant. 
+345. Soxtmacgo speciosa, Nutt.; Torr. & Gray, Fl. 2. p. 205. With the last. 
(531.) 
346. S. speciosa, 8. ancustata, Torr. & Gray, l. c. Mountain-sides, Santa Fé 
Creek ; July. (387.) 
7347. S. riema, Linn. Council Grove, &e. ; Aug., Sept. (389.) 
7348. S. utmtrorta, Muhl.; Torr. § Gray, 1. c. p- 217. Prairie, south of the upper 
ferry of the Kansas River; Sept. (530.) 
were drawn from a single head of unexpanded flowers, with the setzx of the pappus and the form of the ache- 
nium not yet developed. The genus should evidently stand between Boltonia and the Australian genus 
Brachycome. 
* The original Guttierrezia linearifolia, Lag., if truly Mexican, has not been identified. From the imper- 
fect character, I suspect it may be the Brachyris divaricata, Nutt., which sometimes has only three or four 
rays, and which Lieut. Emory collected in New Mexico. The G. linearifolia, Hook. § Arn. in Comp. Bot. 
Mag. 2. p. 51 & p. 254, from Chili, does not agree with Lagasca’s character, and is very near G. Califor- 
nica. G. microcephala, the Brachyris microcephala, DC., non Hook., which was gathered at Saltillo by Dr. 
Gregg, has only one or two rays and as many disk-flowers: the pappus of the ray consists of oblong and dis- 
tinct pale, much shorter than the achenium: that of the disk is formed of similar, although more slender, 
palez ; but the achenium appears to be abortive, as in Amphiachyris, thus invalidating the distinction between 
those two genera. 
