122 
BOTANY. 
Tetradymia glabrata (n. sp.): shrubby, divaricately branched, unarmed, young branch- 
lets, and foliage loosely clothed with floccose white wool, which is soon deciduous; leaves subu¬ 
late or acerose, rather fleshy ; the primary ones erect (none of them converted into spines); 
the secondary ones crowded in axillary fasciales, glabrous; scales of the tomentose-canescent 
involucre and flowers four; hairs of the achenium much shorter than the barbellate-denticu- 
late bristles of the pappus. On the Sierra Nevada, June 16. This is distinguished from T. 
Nuttallii by the acerose, terete, or angled and fleshy leaves, mostly mucronate Or pointed, and 
glabrous, or soon glabrate: from T. spinosa (which it resembles in the secondary leaves) hy the 
fewer flowers and involucral scales, the hairs of the ovarium much shorter than the pappus, 
&c.; and from both of the entire want of spines. It belongs to Tetradymia proper. 
Dodecatheon integrifolitjm, Hoolc. FI. Bor.-Am. 2, p. 118; and Bot. Mag. t. 3622. In a 
canon between Salt Lake and the Sierra Nevada ; May. 
Phlox canescens (n. sp.): dwarf, very much branched, and densely caespitose, tomentose 
when young, and canescent; leaves acerose, imbricated, at length recurved-spreading, not 
rigid, very woolly towards the base, the lower ones marcescent; flowers sessile; teeth of the 
calyx similar to the leaves, and fully as long as the woolly tube; tube of the corolla much 
longer than the calyx and the cuneiform ohovate retuse lobes. P. Hoodii, Torr. in Stansb. 
Exped. p. 304. On the Cedar Mountains, south of the Great Salt Lake. This species (of 
which badly preserved specimens were also gathered hy Colonel Fremont, in his second expe¬ 
dition) is allied to P. Hoodii and P. Douglasii. From the former it is distinguished hy its 
more slender leaves and calyx-lobes, and much longer corolla; from the latter (which has 
longer calyx-teeth than is shown in Hooker’s figure) it is distinguished hy its woolliness, its 
less rigid foliage, longer calyx-lohes, and smaller corolla, but with the tube proportionally 
longer. The ovules are solitary in each cell. The limb of the corolla appears to be white; 
its tube yellowish. 
Gilia pulchella, Dougl. in Hook. FI. Bor.-Amer. 2, p. 74. At the foot of the Humboldt 
Mountains, on the eastern side; May. 
Phacelia integrifolia, Torr. in Am. Lyc. Nat. Hist. N. Y. 2, p. 222, t. 3. Valley of Hum¬ 
boldt River, Utah; June 8. 
Phacelia humilis (n. sp.): annual, low, much branched from the base; leaves oblong, spat- 
ulate or lanceolate, all simple and entire, indistinctly veined, minutely hirsute-pubescent like 
the branches, and glandular dotted; racemes densely-flowered; segments of the calyx linear, 
obtuse, hispid, a little shorter than the (deep violet-colored) corolla; stamens exerted. Near 
the summit of the Sierra Nevada, California; June. A well-marked species, three or four 
inches high, somewhat cinereous, with a fine pubescence, except the inflorescence, and especially 
the calyx, which is hispid with rigid white hairs. Leaves an inch or less in length, short- 
petioled. Corolla short, when expanded three lines in diameter; the base biplicate between the 
stamens. Filaments sparingly hispid above. Style glabrous. Ovules two in each cell. Capsule 
2-3-seeded. This can hardly be the P. canescens of Nuttall, in PI. Gambell., which accords 
better with some states of P. circinata. 
Scrophularia nodosa, Linn.; Benth. PI. Hartweg. no. 1877. Foot of the Sierra Nevada; 
June. The leaves are smaller, much truncate at the base, and more laciniate-toothed than the 
plant of the Atlantic States. 
Collinsia parviflora, Dougl. in Lindl. Bot-. Reg. t. 1802. Foot of the Humboldt Mount¬ 
ains; May. 
Pentstemon speciosits, Dougl. in Lindl. Bot. Reg. t. 1270. Mountains in the western part of 
Utah; June. 
Pentstemon heterophylltjs, Lindl. Bot. Reg. t. 1899? Sierra Nevada, California, on the 
summit of the mountains; June. Two forms, if not species, have been merged by Hooker and 
