{28 PITTONIA. 
3. OC. LINEARIS, Nutt. Gen. i. 126; Lindl. Bot. Reg. t. 1166: 
Gray, Syn. Fl. 1. c. excl. var.—Rocky Mountain region fronr 
Colorado northward ; corollas small, pale purple, insignificant 
compared with those of the preceding. The plate in the 
Botanical Register, executed from a specimen cultivated in 
England, represents an unnaturally lax and branching state, 
unlike anything ever seen in the wild plant. 
* * * Annuals branched from the base. 
+— Branches depressed ; Jlowers in nearly or quite bractless — 
small clusters, in the axils, and at the 
ends of the branches. 
4. C. HETEROPHYLLA, Hook. Bot. Mag. t. 2895; Bot. Reg. 
t. 1347; Gray, Syn. Fl. le: Gilia Sessei, Don, Gray, Proc. 
Am. Acad. xvii. 223: Gilia hetorophylla, Dougl. in Bot. Mag. 
t. 2895; Gray, Syn. Fl. Suppl. 408: Navarretia heterophylla, 
Benth. in DC. 1. e.—California and northward to British 
Columbia: the only annual species with leaves either cleft 
into lobes, or being aristate-tipped ; by the last named 
peeuliarity related to Navarretia; but a true Collomia in all 
essential points, the gibbosities in the sinuses of the calyx 
coming out strongly in age. 
9. C. DIVERSIFoLIA. Near the preceding, but shorter and 
much stouter, the rigid almost divaricate branches naked 
below, bearing the rather large flower-clusters at or near the 
ends only ; hirsute-pubescent, the inflorescence viscid : lowest 
„leaves an inch long or more, spatulate, toothed near the apex 
or more commonly entire; the floral linear-lanceolate, entire, 
sessile: fruiting calyx a half inch long or more, narrow as to 
expansion, the lanceolate segments twice as long as the tube, 
firmly herbaceous throughout, not at all aristate-pointed, the 
gibbosities between them small for the size of the ealyx, but 
very distinct. 
Collected along Epperson's Road, in the mountains of 
Colusa County, California, June, 1884, by Mrs. Curran. The 
