68 PITTONIA. 
New or NOTEWORTHY SrECIES.—X XIV. 
ARGEMONE SQUARROSA. Perennial, the stout branching 
and apparently decumbent branching stems 2 feet high or 
more, rather sparsely hispid, the spines rather slender, and 
unequal: leaves simply pinnatifid, the lobes in pairs, with 
broad sinuses between them, hispidulous on both faces, the 
lobes spinose-tipped: flowers, and also the fruits, sessile at 
the open-cymose summit of the stem: sepals very hispid 
with ascending spines: corolla 3 inches broad, the white 
petals overlapping and expanding to the rotate: capsules 
nearly 2 inches long, of oval-lanceolate outline, bearing nu- 
merous bract-like herbaceous recurved and spine-tipped 
protuberances $ to ? inch long, their herbaceous basal part 
hispid with distinct prickles and also roughened with short 
coarse setose hairs, the body of the whole capsule similarly 
both prickly and setose-pubescent. 
An exceedingly pronounced species in the characters of 
the capsule; this organ appearing as if covered with spines- 
cent bracts. Its habitat is southern New Mexico, where it 
was collected in August, 1898, by Miss J. Skehan. 
ARGEMONE SANGUINEA. A. Mexicana, var. rosea, Coulter, 
Bot. West Texas, p. 12. The beautiful plant so named by 
Prof. Coulter is surely no part of A. platyceras; a species 
which is, I believe, wholly Mexican, and not known within 
the United States. The petals in A. sanguinea, so far from 
being rose-colored, are of a dark, almost blood red. It is to 
be regretted that it is not in cultivation, and that even in the 
herbaria it exists in only scanty and fragmentary material. 
V LESQUERELLA VALIDA. Stout decumbent flowering stems 
numerous, axillary to the outer leaves of a rosulate tuft, the 
whole with a single tap root, the stems about 5 or 6 inches 
high, and, with the leaves, calyx and pods silvery with a 
