BOTANY. 103 
and that shows no hoary pubescence; but a specimen from Frémont's collection (which is re- 
markable for the foliaceous scales of the involucre being as long as the rays, even two inches in 
length) connects Nuttall's plant with our own. The foliage is more like that of B. Hookeri , (to 
which B. hirsuta must belong,) but the involucre is very different. 
BALSAMORHIZA DELTOIDEA, Nutt. l. c.; var. GLABRESCENS. B. glabrescens, Benth. Pl. Hartw., 
No. 1785, p. 317; but with the leaves for the most part coarsely toothed, and some of them not 
cordate at the base. Hill-sides, Sonora, California; May. This was also collected by Frémont 
in his second journey, and is mentioned in the account of some new Composite of that collection 
(in Bost. Jour. Nat. Hist.) as a new Balsamorhiza, if not a form of B. deltoidea. There is 
scarce a doubt that they are all forms of one species. 
HELIANTHELLA CALIFORNICA (sp. nov.): hirsutula; caule ramoso; ramis apice longe nudis 
monocephalis; foliis omnibus longius petiolatis lanceolatis seu spathulato-lanceolatis e medio 
triplinerivis nitidulis ; involucri squamis lineari-subulatis hirsutisligulas subequantibus; acheniis 
(immaturis) leviter obcordatis glaberrimis ala integerrima apice pappum brevissimum squamel- 
lato-setulosum gerentibus; aristis atque squamellis intermediis nullis. Napa valley, Califor- 
nia, on hill-sides; April. The western species of this genus were founded on very incomplete 
materials, and greatly need revision, But this appears to be different from any before known, 
on account of the perfectly glabrous, awnless, neither ciliate nor lacerate achenia, with the 
pappus reduced to a tuft of very minute sete or squamelle at the summit of each smooth and 
entire wing; and the scales of the involucre are uniformly attenuate-subulate, not at all folia- 
ceous. The naked peduncles are from 5 to 15 inches long. Leaves slightly scabrous, most of 
them opposite, 3 to 7 inches long, half an inch or an inch wide, or some of the larger occasion- 
ally rhomboid-dilated upwards, and these 2 inches wide; the cauline all on petioles of one or 
two inches in length. 
ENCELIA CALIFORNICA, Nutt. l. c. ; Torr. € Gray, Fl. 2, p. 317. Los Angeles, California ; 
March. 
ENCELIA FARINOSA, Gray, in Emory's Rep. p. 143. A species of which no character has been 
published, but which is likely to prove not distinct from the E. nivea, Benth. Bot. Voy. Sulph. 
p. 27. Gravelly hills on the Colorado of the west; February. 
HELIOMERIS MULTIFLORA, Nutt. in Jour. Acad. Philad. (n. ser.) 1, p. 171; Gray, Pl. Fendl. 
p. 171, € Pl. Wright. 2,.p. 81. Banks of streams, San Domingo and New Mexico; October. 
LEPACHYS CoLUMNARIS, Torr. & Gray, Fl. 2, p. 315. Shawneetown; August. Var. PULCHER- 
RIMA, Torr. € Gray, l. c. Upper Canadian to New Mexico; September, October. 
Lepacuys Taceres. L. columnaris, var. Tagetes, Gray, Pl. Wright. 1, p. 106. Rudbeckia 
Tagetes, James, in Long's Exped. 2, p. 68. Prairies on the Canadian; September. This 
appears to hold its characters, and to claim a place as a distinct species. 
VIGUIERA LAXA, DC. and V. coRDIFOLIA, Gray, Pl. Wright. 1, p. 107, & 2, p. 88, were 
collected on the Mimbres, by Dr. Henry. d 
HELIANTHUS LENTICULARIS, Dougl. in Bot. Reg. t. 1265. On the Canadian ; August. : 
HELIANTHUS PETIOLARIS, Nutt. in Jour. Acad. Philad. 2, p. 115. Pecan creek, a tributary 
of the Canadian ; August. : 
HELIANTHUS CILIARIS, DC. Prairies of the upper Canadian; September. A dwarf state of 
this well-marked species. a | 
HELIANTHUS RIGIDUS, Desf.; Torr & Gray, Fl. 2, p. 322. Prairies near Walnut creek, of 
the Canadian ; August. i 
HELIANTHUS LXTIFLORUS? Pers. ; Torr. & Gray, l.c. Pecan creek, of the Canadian ; August. 
HELIANTHUS MAXIMILIANI, Schrader ; Torr. € Gray, l. c. Prairies and ravines on the Cana- 
dian; August. 
HELIANTHUS GROSSE-SERRATUS, Martens; Torr. & Gray, l. c. p. 326. Bottoms, Deer creek, Ar- 
kansas; August. pe 
HELIANTHUS DORONICOIDES, Lam. ; Torr. € Gray, l. c., p. 327. On the Canadian, in low places ; 
August. 
