1848.] 13 



half the length of the albumen. — Annuals with bipinnati/id leaves, with the 

 flowers in loose racemes. 



E. *paniciilata. Flowers in a loose terminal panicle; stem viscid; uppermost 

 leaves pinnatifid, segments of tlie calyx oval, obtuse. 



H.\.B. Near Santa Barbara, Upper California. Flowering in April and May. 



E. *folinsa. Leaves all bipinnatifid, hirsute ; racemes not longer than the 

 leaves ; segments of the calyx ovate, acute. 



Hab. With the above, which it much resembles, but a lower, less viscid 

 plant, with rather smaller flowers and capsules. 



COLLOMIA. 



^. Calyx obconic, scarcely cleft to the middle, with foliaceous segments. 

 Flowers racemose, scattered. Intensely bitter to the taste. — *Picracoi,la. 



C. *linuiJes. Leaves narrow-linear, scattered, ending in a short mucro ; 

 flowers small, scattered, subsessile, the calyx shorter tnan the tube of the co- 

 rolla. 



Hab. Banks pf the Platte. (Nuttall.) 



PHACELIA. 



P. *canescens. Canescent and hirsute ; leaves spathulate, oblong or sublan- 

 ceolate, entire; racemes condensed into circinate clusters; corolla twice the 

 length of the calyx ; stamens exserted, the filaments pilose. 



Hab. In the Rocky Mountains and Blue Mountains of Oregon. (Nuttall.) 



p. *glandulosa. Annual or biennial, very pilose, with a soft, short, shining 

 pubescence ; the stems and calyx covered with blackish, viscid, resinous glands; 

 leaves pinnatifid ; the segment.^ somewhat toothed, short and roundish ; flowers 

 shortly pedicellate in crowded circinate spikes; segments of the calyx oblong; 

 stamens exserted ; style pilose. 



Hab. About Hams' Fork of the Colorado of the West, on dry, bare hills. 

 (Nutlall ) 



NAVARRETIA. 



N. ^minima. Q. Smooth, dwarf, depressed and branched from the 

 base; leaves somewhat bipinnately divided, with iew and divaricate, subulately 

 sharp segments; floral leaves simply pinnately dissected ; calyx with three of 

 the segments usually entire ; corolla longer than the tube of the calyx; ovary 

 cells 2-seeded. 



Hab. Plains of the Oregon, near Walla. Walla, (\uttall.) 

 Seldom more than an inch high; segments of the leaves quite acicular ; 

 flowers small and white, the tube exserted a little beyond the calyx; the 

 stamens slightly exserted. 



ERIOGONUM. 



E. *acaule. Very dwarf, stemless and cscspitose, the caudex much divided, 

 leaves whitely tomentose, oblong-linear, reflected so as to be semi-cylindric ; 

 involucrum wholly sessile, few flowered, 4 or 5- toothed, the teeth very ob- 

 tuse. 



Hab. On the summit of the Rocky Mountains, near the Colorado of the 

 West, at the highest land. A very remarkable dwarf species, forming dense 

 tufts, independent of the subterraneous woody caudex, not an inch high, whitely 



