SPECIES OF PENTSTEMON. 165 
cauline obovate to elliptical and small toward the base, the 
others ovate-lanceolate, entire, sessile, ascending, 2 or 3 inches 
long, acute: thyrsus not compact : sepals ovate, cuspidate, line- 
olate, very narrowly scarious-edged: corolla purple, 2 inch long, 
the tube ventricose and limb definitely bilabiate: sterile filament 
strongly bearded. 
Castle Gate, Utah, M. E. Jones, 1894, sheet 237,290 U.S. 
Herb.; also by the same from Mt. Ellen, 1894, sheet 237,292. 
both labelled P. confertus, though the plant is in no way 
specially related to that species. 
P. PRATENSIS. Stems solitary from short rootstocks, very 
slender, 14 feet high: plant glabrous throughout, sparingly 
leafy ; basal leaves few, 1 to 2 inches long, of elliptic blade and 
slender petiole, cauline remote in 4 or 5 pairs, mostly sessile, 
lanceolate, 1 to 3 inches long: thyrsus short, of 3 to 5 clusters : 
sepals subquadrate- oblong, narrowly scarious-margined, the sub- 
truncate summit abruptly subulate-pointed: corolla pinkish, 
$ inch long, narrow-funnelform, the segments not small ; lower 
lip densely bearded. 
Moist meadows of the Humboldt River about Deeth, Nevada, 
14 July, 1896, collected only by the writer. Allied to P. confertus, 
as is also the following. 
P. MopEsTuUS. Subalpine, with subligneous branching base 
and slender but rigid ascending stems 8 or 10 inches high sparsely 
leafy, the foliage firm and subcoriaceous: basal leaves 1 inch 
long or more of obovate to elliptic blade and slender petiole, 
cauline smaller, spatulate-oblong to oblong, acute, glabrous, as 
are all parts of the plant: inflorescence of 2 to 5 interrupted 
false whorls of small blue flowers: calyx small, of obovate 
sepals truncate and more or less dentate across the summit, in- 
definitely somewhat scarious-edged : corolla hardly 4 lines long, 
the very slender narrow funnelform tube deflected, the limb 
ample in proportion, lower lip bearded, as also the sterile fila- 
ment at tip. 
Ruby Mountains back of Deeth, Nevada, 20 July, 1896, col- 
lected only by myself ; the typein my herbarium. 
