PLATYSTEMON AND ITS ALLIES. 185 
of a dark smoky brown, the back and sides singularly 
amorphous-roughed, resembling strips of cork; the fruit, as 
in allied species, covered by the persistent petals and 
stamens. 
Known only from some unrecorded station in Colusa Co., 
where it purports to have been collected in 1889, by Bran- 
degee ; the specimens seen in Herb. Calif. Acad. 
37. P. PILosELLUS. Slender, a foot high or less, densely 
pilose-hairy, the peduncles scarcely exceeding in length the 
leafy branches, and less hirsute than the narrow leaves: buds 
narrowly obovoid: corolla apparently deep-yellow, # inch 
broad and with short turbinate base, the petals being nar- 
rowed to a short but distinct ligulate claw: filaments nar- 
rowly linear, retuse under the anthers but hardly equaling 
them in breadth: fruit only 4 inch long, the carpels about 
10, slender and strongly moniliform by the abrupt deep 
constrictions between the 7 to 9 rounded joints, the whole 
Series traversed dorsally by a strong obtuse midnerve or 
keel, the joints with little or no uneveness of surface. 
Madera, Madera Co., May, 1889, P. S. Buckminster, in 
Herb-Calif. Acad. The only species, I believe, in which the 
hairiness of the foliage is more dense than that of the 
peduncles; and it isa coarser hairiness than that of the 
considerable group typified in P. crinitus. 
38. P. PENICILLATUS. Low, slender, subacaulesant, the 
whole plant about 5 inches high; leaves an inch long, obtuse, 
callous-tipped, not very hairy ; scapiform peduncles very hir- 
sute: corolla small, the petals all distinctly though shortly 
unguiculate: filaments very narrow, spatulate-linear, widest 
at the obtuse or emarginate summit and little or not at all 
wider than the short merely linear-oblong anthers: fruit 
about # inch long including the stigmas, but these as long, 
