6 Colorado Plants. [ZOE 
2. Fiom Mancos. Similar to No. 1, but canescent with close 
stellate pubescence; pedicels strictly deflexed with scattered 
stellate hairs, pods sparingly hairy along the margins. This 
was also collected in Navajo Cafion, a branch of Mancos Cajfion. 
3. From Mancos. Stems slender, several from the root, 
canescent with close stellate pubescence; radical leaves from 
spatulate-dentate to oblanceolate, entire; upper part of the stem 
and pods smooth and glossy, pods on spreading pedicels, two 
rows of winged seeds in each cell, flowers small. 
4. From Mancos. Similar to No. 2. except that the cauline 
leaves are oblanceolate, sessile at the lower part of the stem, and 
sagittate above only. . oe 
5. From Southeastern Utah. ‘This branches at the root and 
also above, and is chiefly distinguished by the short spreading 
pods not more than an inch in length. 
6. From Central City, Colo. This branches from near the base 
with many slender stems, small lanceolate sessile leaves, with 
scattered bristly hairs on the margins. 
ARENARIA FENDLERI Gray. This is found at Grand 
Junction with short leaves and straw-colored flowers. 
SIDALCEA. This is described as having beakless carpels. 
The two species found in Colorado, S. candida and S. malvefiora, 
have carpels decidedly beaked, wrinkled, and veiny. 
SPHARALCEA RIVULARIs Torr. This has been collected with 
two well marked forms. The plant seen in the Uncompahgre 
Cafion, near Ouray, was almost a bush three feet or more tall, with 
many leafy stems from the. root, lower leaves a foot long, 
slightly lobed and crenate, hispid with stellate bristles, upper 
‘stem-leaves with deeper lobes irregularly toothed; flowers 
nearly two inches in diameter, white and few among the large, 
broad leaves which thickly clothe the stem. 
At Steamboat Springs, in Routt County, Colo., Spheralcea 
rivularts is abundant on a mountain side not far from the town. 
This variety branches into many flowering erect stems, leaves 
not more than three inches long, deeply lobed into acuminate 
_ divisions which are sharply dentate or laciniate, the large rose- 
colored or white flowers are crowded along the almost naked 
- peduncles. . 
