156 ; PITTONIA. 
Holbóllii by its obtusely auricled cauline leaves, and toothed 
radical ones, as well as by its excessively elongated racemes 
of much smaller red flowers. 
ARABIS FENDLERI. More slender than the above and less 
tall, mostly or wholly destitute of stellate hairs, only the 
lowest entire oblanceolate leaves very distinctly hirsute- 
ciliate, and with scattered trifurcated hairs on the lower face, 
all the upper parts of the plant, including all but the lower 
cauline leaves, glabrous and glaucous; the sessile cauline | 
leaves barely auricled, not sagittate: pods mostly less than 
2 inches long, scarcely curved, acutish, on spreading or 
scarcely deflexed pedicels of 1 inch or more: seedsin 2 rows, 
small, marginless. 
A somewhat variable plant of subalpine situations in the 
Rocky Mountains from New Mexico to Wyoming; but in 
none of its phases does it exhibit the pubescence of A. Hol- 
böllii, but always its own, which is chiefly conspicuous as à 
ciliation of the leaf-margin. The description is here drawn 
mainly from Colorado specimens of my own collecting, which 
exactly match Fendler's n. 27 from New Mexico, which is 
the type of Mr. Watson's A. Holbéllii Fendleri, in Gray, 
Syn. Fl. i. 164. 
LEPIDIYM RETICULATUM, Howell, Fl. N.W. Am. 64. Low 
and diffuse ; herbage light-green, more or less hispid-puberu- 
lent: th I l ally 2 to 4 incheslongand di- 
varicate, the narrow and dense fruiting racemes very many 
and conspicuous, the very earliest reduced to capitate sessile 
clusters among the radical leaves: leaves of oblong outline, 
pinnatifid, the segments 3-cleft or -tootned: petals none: 
pods of ovoid or broadly elliptie outline, little more than a 
line long, wingless, obtusely 2-toothed at summit, glabrous ^. 
reticulate; pedicels short, ascending or spreading, not much a 
flattened. E 
This is the Lepidium Menziesii of Nuttall, of Watson, Asa 
Gray and myself ; Nuttall's mistaken identification of it with. 
