1913] NELSON & MACBRIDE—WESTERN PLANTS 381 
numerous, scarcely smaller above, often rather closely ascending, 
scabrous on both sides, sometimes ciliate on the margins, linear to 
narrowly lanceolate, 2-6 cm. long, usually entire, but not rarely 
with one pair of widely divaricate lobes: bracts resembling the 
leaves: the moderately crowded inflorescence at length rather open, 
predominating color yellow or greenish-yellow, but often flushed 
with red: calyx 1.5 cm. long, scarcely exceeding the corolla tube, 
subequally cleft above and below, the primary divisions cleft at 
apex into long acute teeth: corolla 2-2.5 cm. long, galea 7-10 
mm. long, the lower lip scarcely saccate, with very short teeth, 
the outer the longer. 
Apparently the nearest allies of the proposed species are C. fasciculata A, 
Nels. and C. lutescens (Greenm.) Rydb. It differs from both in the very short 
calyx, also from the former in the harsh pubescence (in which it resembles C. 
lutescens), and from the latter in the narrower leaves. No. 2099 from Gold 
Creek, Nevada, July 24, 1912, is taken as the type. No. 2098 from the same 
locality and 1983 from Jarbidge, July 8, are both fairly representative. It 
occurs mostly on grassy slopes, 
CASTILLEJA FASCICULATA inverta, n. var.—Much resembling 
the species, but pubescence merely a fine puberulence: calyx exceed- 
ing the corolla, more deeply cleft above than below, its lobes short- 
bifid: galea and lip subequal. 
Practically all the perennial species formerly referred to Orthocarpus have 
been transferred to Castilleja, even when the corolla lips are subequal. This 
seems advisable, the more so in the present instance, because of its evident 
affinity with C. fasciculata A. Nels. In the subequal lips of the corolla, which 
is surpassed by the calyx, the proposed variety is strongly differentiated, and if 
subsequent collections show the characters given above to be constant it will 
become C. inverta. 
Secured at Rattlesnake Springs, Idaho, on hard gravelly soil among the 
sagebrush, no. 1915, July 4, 1912. : 
Pentstemon rex, n. sp.—Having the pubescence, herbage, and 
aspect of P. perpulcher A. Nels., Bor. GAz. 523273. 1911.—Corolla 
bright blue, about 3.5 cm. long, rather abruptly ampliate above the 
tube proper, wholly glabrous without and within as are also the 
anthers: sterile filament slightly dilated, glabrous or sparsely hispid- 
pubescent with short unequal hairs: anther cells dehiscent from the 
base upward for about three-fourths their length, leaving a closed 
saccate apical portion. 
