PLANTH FENDLERIANZ. 87 
the plant raised from seed in the Cambridge Botanic Garden the flowering branches are 
more leafy, and bear three or four heads on shorter peduncles. Achenia half an inch 
long. The species should stand next to B. bipinnata. 
7402. B. rronposa, Linn. Ford of the Arkansas, &c.; Sept. (443. ) 
7402 bis. B. connata, Muhl. Low plains near Council Grove ; Sept. (439, 435.) 
403. XIMINESIA ENCELIOIDES, Cav., 5. cana, DC. Waste grounds, about Santa 
Fé ; May to Sept. (421.) Also in the Raton Mountains, along the Rio de los Animos. 
— Wings of the achenia opaque and thickened. The plant raised from these seeds in the 
Botanic Garden, Cambridge, is much less canescent. 
+404. Sanviratia Aperti (sp. nov.): caule erectiusculo ramoso; foliis lanceolatis 
trinervatis hispido-scabris in petiolum attenuatis ; capitulis primariis pedunculatis nudis ; 
involucro disco (viridi-flavo) fructifero brevioribus ; ligulis ovatis longitudine achenii aris- 
tas duplo excedentibus ; acheniis disci fere conformibus compresso-quadrangulatis tuber- 
culatis exalatis paucisve suberoso-subalatis apice emarginatis calvis aut minime uniaristu- 
latis. — Woodlands, between Santa Fé and Pecos; Aug. (538.) —'The specimens have 
barely produced the primary heads (which are much smaller than in S. procumbens). 
The fruit, &c., is here described from a mature specimen in Dr. Torrey’s herbarium, 
gathered by Lieut. Abert, between Bent’s Fort and Santa Fé. The plant is a span 
high, and bears all its terminal heads on naked peduncles half an inch long ; and the disk 
is greenish-yellow, not purple nor blackish, Ligules a little more than a line long.* 
405. HETEROSPERMUM TAGETINUM (sp. noy.): caule bifariam hirsutulo; foliis pin- 
nato-3 —7-partitis more Tagetis pellucido-glandulosis, segmentis linearibus integerrimis ; 
squamis involucri exterioris 3 linearibus capitulum superantibus ; acheniis radii ala an- 
gusta crassa arcte inflexa cinctis, disci exterioribus calvis centralibus rostratis biaristatis. 
— Woodlands, twelve miles west of Las Vegas, New Mexico; Aug. (534,) — Annual, 
a foot high; the foliage, involucre, &c., much as in H. pinnatum; but the segments of 
the leaves are entire, and pellucid-punctate with abundance of coarse glands, as in Tage- 
tes, those near the margins oblong, the others mostly globular and smaller. ‘The awnless 
achenia are obovate and very glabrous ; the three or four central are flat, and taper into an 
upwardly hispid-scabrous beak, which bears a pair of retrorsely aculeolate, deciduous 
awns. In H. pinnatum, the original species of the genus (which in these respects is not 
well characterized by De Candolle), all the disk-achenia are 2-awned and more or less 
* Oligogyne Tampicana, DC., occurs abundantly in the collections made by Dr. Gregg and others in 
Tamaulipas, at Monterey, &c. Only some of the terminal heads are long-pedunculate: the later ones are 
frequently almost sessile. 
