NELSON: NEW PLANTS FROM WYOMING 241 
’ Physaria didymocarpa lanata var. nov. 
Habit and size of the species ; basal leaves more inclined to be 
irregularly toothed, but the variety mainly distinguished by its 
copious pubescence as follows: white throughout with long- 
branched stellate hairs and a more copious simpler pubescence, 
giving the plant a tomentose appearance especially upon the bases 
of the crowded crown-leaves and to a lesser degree in the inflor- 
escence : the fruits large, thin and papery. 
Collected by L. N. Goodding in the Big Horn Mountains, on 
Steep slopes at the head of the middle fork of Powder river, July 
19, 1901, no. 326. 
“ Linum compactum sp. nov. 
Apparently perennial, from slender rhizomes having somewhat 
enlarged crowns at the surface of the ground: murky-green, with 
a scabrous puberulence throughout, seemingly also subglutinous : 
stems crowded on the crowns, short (about 1 dm. long), each 
freely short-branched, thus forming plants of subspherical aspect, 
Striate but not all wing-angled: leaves very numerous especially 
below, divaricate or the lower widely spreading, linear, scarcely 
exceeding 1 cm. in length, mucronate, the midnerve obscure, the 
margins slightly cartilaginous-thickened, often with a few minute 
Stipitate glands on the margin near the base ; no stipular glands ; 
OWers numerous, on terete or sometimes wing-angled pedicels 
scarcely longer than the sepals: sepals lanceolate, obscurely ak. 
nerved, short-cuspidate, glandular-ciliate on the scarious margin, 
5-6 mm. long, hardly surpassing the mature fruit: petals yellow, ° 
Wholly glabrous, less than 1 cm. long: filaments linear, not 
enlarged at base; anthers oval, large, attached near the base: 
styles free for one third of their length: capsule ovoid, obtuse, 
about 4 mm. long. 
This species is allied to Z. puberulum (Engelm.) Heller and to 
L. Arkansanum G. E. Osterh. The former differs from this species 
in its glaucous hue, and in having stipular glands, filaments tri- 
angular-ovate at base, and styles united to the summit. The latter 
differs in having longer leaves, sepals twice as long, and styles 
united tothe summit. Both differ from the species now described 
in habit, being corymbosely branched from the base up, and in 
having much larger orange-colored flowers, the petals of which 
ate pubescent at base. The type is zo. 8297, secured on the North 
Platte River near the eastern border of Wyoming, Torrington, 
June 28, 1901, when it was in full fruit almost past blossoming. 
