128 BOTANY. 
PoLEMONIUM PULCHERRIMUM, Hook. Bot. Mag. t. 2979. Rocky Mountains; August. 
Gitta PINNATIFIDA, Nutt. in Herb. Acad. Philad.? In the Rocky Mountains, near the head 
of the Rio Grande; August. If this be a variety of Nuttall’s plant (which is Fendler’s No. 
655) it is remarkable for its much less lobed leaves; those of the branches being mostly entire. 
Gitta GUNNISONI, (n. sp.): annual; stem paniculately much branched from the base, nearly 
glabrous, as are the leaves; the latter alternate and scattered, subulate-filiform, all entire, 
mucronate; the crowded bracts viscid-puberulent (like the branchlets), subulate, with the di- 
lated lower portion viscidly villous-ciliate, mostly shorter than the flowers, which are capitate- 
clustered at the summit of the branchlets; teeth of the calyx pungently pointed, a little shorter 
than the tube of the salver-shaped white corolla; stamens inserted in the sinuses of the corolla, 
rather shorter than its obovate lobes; ovules 2 or 3 in each cell. Sand-banks of Green River, 
Utah; October. Root slender, evidently annual; the stems or branches 6 or 8 inches high. 
Leaves all alternate, slender; the cauline and rameal scattered, filiform; the lower nearly an 
inch long; the upper gradually reduced to small subulate bracts. Calyx somewhat pubescent. 
Corolla 3 to 4 lines long, the limb rather shorter than the tube; style pubescent below. 
MARTYNIA PROBOSCIDEA, Glox. Near Walnut Creek; July. 
DriPTERACANTHUS CILIOSUS, N. ab E. in DC. Prodr. 11, p. 122. Beyond Westport; June. 
DIANTHERA PEDUNCULOSA, Linn. (Rhytiglossa pedunculosa, N. ab E.) Kansas, beyond West- 
port; June. 
PENTSTEMON Cosma, Nutt.; Hook. Bot. Mag. t. 3465. Prairie between Westport and Bluff 
Creek; June. 
Prntstemon Drarraum, Nutt.; Hook. Bot. Mag. t. 2587. With the foregoing. 
OnTHocARPUS LUTEUS, Nutt. Gen. 2, p. 51. Utah Creek; August. 
CASTILLEJA PURPUREA, Don. Valleys of the Rocky Mountains; August. 
Monarpa FISTULOSA, Linn.; Benth. in DO. Prodr. 12, p. 361. Damp valleys of the Rocky 
Mountains. 
MONARDA ARISTATA, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 186; Benth. l. c. Rou- 
bideau’s Pass; August. The specimens are evidently annual. 
ERITRICHIUM GLOMERATUM, DC. Prodr.10,p. 131. Myosotis glomerata, Nutt. Gen. 2, p. 112; 
Hook. Fl. Bor.—Am. 2, p. 80, t. 162.  Declivities of the Rocky Mountains; August. A very 
rough form of the plant; flowers white, conspicuous. 
SOLANUM TRIFLORUM, Nutt. Gen. 1, p. 128; Dunal in DO. Prodr. 13, part 1, p.45. Near 
the Rocky Mountains; August. Leaves narrower and with fewer teeth on the lobes than usual. 
Stem branching from the base, and prostrate. Flowers pale blue. 
ABRONIA FRAGRANS, Nutt. in Herb. Hook.; Hook. Kew. Jour. Bot. 5, p. 261. Rocky Mount- 
ains; August. This is in Wright's (1711) and several other collections, as well as in Geyer's; 
but no character of it has yet been published. It is distinguished from A. mellifera by its pure 
white ‘‘porcelain-colored’’ flowers, scarcely winged fruit, and especially by the involucre, com- 
posed of very large, broadly ovate, scarious and white leaflets. 
OxvsAPHUS AUGUSTIFOLIUS, Torr. in Ann. Lyc. New York, 2, p. 237; Sweet; Choisy in DC. 
Prodr. 13, pars 1, p. 433; var. LINEARIS. Fort Atkinson, Arkansas river, and Roubideau’s 
Pass, Sierra Blanca, Rocky Mountains. 
EUPHORBIA MARGINATA, Pursh, Fl. 2, p. 607. New Fort Massachusetts, San Luis Valley ; 
August. 
Porxeoxvw LAPATHIFOLIUM, Linn; var.: leaves narrowly lanceolate, roughly pubescent on the 
veins underneath and on the margin; sheaths slightly hairy, ciliate with short hairs; 
MN glandularly pubescent and hispid. Between Westport and the Rocky Mountains; 
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