DESCRIPTIONS OF NEW SPECIES 
mit of the root, and hid among the leaves.—Nearly allied to Parthenium, 
| though of the most dissimilar habit, and perfectly distinct.—(The name from 
Bwados, a clod, and gutov, a plant; in allusion to the depressed and cespitose 
growth. ) 
Bolophyta alpina. 
Has. In the Rocky Mountain range; latitude about 42°, and seven thousand feet above the level 
‘of the sea. On shelving rocks, on the summit of a lofty hill, near the place called the ‘« Three 
Butes”’ by the Canadians, towards the sources of the Platte. Flowering in June. Root fusiform, 
stout and very long, sending off several closely-matted crowns of leaves. Leaves about an inch or 
an inch.and a half high, scarcely a line wide, linear and acute, attenuated below, coming out in 
rosulate clusters, equally pilose on either side, without any visible vessels but the mid-rib, so that - 
the leaf appears nearly the same on either side. Capitulum sessile, or upon a very short and thick 
peduncle, somewhat larger than that of Parthenium integrifolium, but still very similar. Scales 
of the involucrum ten, five external, ciliate and pubescent at the summit; receptacular scales simi- 
lar but narrow, also pubescent at the tips, each enfolding a male floret, with the five-toothed sum- 
mit visible. Anthers dark brown, united, enclosing a very small style, with a simple, obtuse, 
searcely pubescent stigma. Radial florets ochroleucous;,-(as well as the discal) short and tubular, 
appearing truncate, the border a little spreading and slightly crenulate, with scarcely any anterior 
cleft. “Stigmas not exserted beyond the short ligula. Achenium black when ripe, with a whitish 
Parthenium integrifolium. 
Has, In Arkansa. 
Subtribe IL—HELIANTHE. (Less. Decand.) 
Division I.—Hetiorsipez. (Decand.) 
ZINNIA * grandiflora; x4? dwarf; leaves linear lanceolate, connate, scabrous 
on the margin; stem’ muc h branched from the base; rays (yellow) very large, 
orbicular-oval ; scales | ea rounded; palew fimbriate; diseal fruit 
with a single awn. 
Has. In the Rocky Mountains, towards Merete distinct and splendid species, appa- 
rently perennial. The only specimen I have (presented me by my friend, Dr. Torrey,) is scarcely 
more than five inches high; the stem somewhat hirsute; leaves about an inch long, two to three 
lines wide, three-nerv : below; branches one-flowered ; involuerum of about three series of di- 
lated, roundish seales: Rays yellow, orbicular, or widely oval, appearing cordate at base, and 
there plaited, three-fourths of an inch wide; style of the ray filiform, smooth, exserted, bifid, Disk 
apparently orange. 
