OsTERHOUT: NEW PLANTS FROM COLORADO 55 
3. Oreocarya monosperma sp. nov. 
Biennial or short-lived perennial, stem single or several from 
the crown of the root, 2-3 dm. high, hispid with coarse spreading 
hairs and a finer pubescence beneath, branching from about the 
middle into a thyrsoid-paniculate inflorescense; lower leaves 
oblanceolate, obtuse, with the petiole 3-8 cm. long, about a cm. 
wide, becoming smaller upward, sessile, very hispid on both sides, 
the coarse hairs pustulate at base, a fine indument beneath; 
caylx lobes narrowly linear, in fruit becoming 8-9 mm. long, hispid 
and pubescent as the stem; corolla white, the tube the length of 
the calyx lobes, 4 mm. long, the anthers attached at the throat, 
filaments almost none; nutlets, only one maturing, ovate, mar- 
gined, the margin upturned, slightly more than 3 mm. long, 
lightly cross-ridged, and tuberculate between the ridges. 
Oreocarya monosperma in appearance is much like O. thyrsiflora 
Greene; the two plants are about the same size, but the thyrsus 
is not so long in comparison with the stem; the nutlets are darker 
in color, ridged more, and less tuberculate, one instead of four. 
Collected at Trinidad, Las Animas County, Colorado, July 20, 
1918, No. 5754. 
4. Mertensia Clokeyi sp. nov. 
Stem slender, 2.5—3 dm. or occasionally 4 dm. high, glabrous 
or thinly appressed pubescent, branching from the upper third 
into a loose paniculate inflorescense, the peduncles often long and 
the flowers clustered at their ends; leaves rather remote on the 
stem, the lower narrowly linear, 3-4 cm. long, 3-4 mm. wide, the 
upper lanceolate, or narrowly ovate-lanceolate, acuminate, all 
sessile by a broad base, pubescent on both sides, the upper thinly 
with appressed, sharp pointed hairs, the lower less appressed; 
pedicels strigose pubescent, calyx 3.5 mm. long, the lobes 2.5 mm., 
lanceolate, glabrous, the edges ciliate; corolla 10-11 mm. long the 
tube half the length; filaments long, about the width of the anthers. 
Mertensia Clokeyi was collected by Mr. Ira W. Clokey, of 
Denver, at Lake Eldora, Boulder County, Colorado, in woods, 
altitude 9,300 ft., No. 3161. It belongs to the M. /Janceolata 
group. The leaves are pubescent on both sides, the pedicels 
strigose, and the calyx glabrous, except the ciliate edges of the 
lobes; in these respects it is like Mertensia media Osterhout, but 
the leaves are much broader and different in shape. 
