OP ARTS AND SCIENCES. 225 



Eritrichium INTICRMKDIUM, E. Krynitzk'ia, E. muriculato affine, 

 admoduin variaus ; nuculis ovato-lanceolatis (ex ovata sursum serisim 



ovate-dcltoiil dorsal disk more or less carinately one-nerved, margined b}' a 

 series of long flat subulate prickles. — The syn. " E. subdecurre.ns, Parry, &c ," 

 to be excluded, as it belongs, along with many of the specimens referred here, 

 to the next species. Corolla commonly 3 lines in diameter. 



* * Perennials, largt'r-flowcred (corolla usually 5 lines in diameter) : dorsal 

 disk of the nutlets sparsely armed with much shorter and smaller glochi- 

 diate prickles than the flattened and basally dilated mai-ginal ones. 



E. DiFFUSUM, Lehm. Pubescent and often canescent with soft hairs or with 

 leaves hispidulous, branclied from the base: pedicels usually slender : nutlets 

 with broadly ovate dorsal disk ; the ventral face roughish and dull ; the margi- 

 nal prickles as in E. Jloribundum; but mature fruit not seen. — Lehm. Pug. ii. 

 23; Hook, Fl. Bor.-Am. ii. 83, not Gray, Syn. Fl., in which this species is 

 mixed with E. Jlorihundum. Rochdia patens, Nutt. Jour. Acad. Piiilad. vii. 44. 

 Echinosprnnmn subdecumbens, Parry in Proc. Davenport Acad. i. 48. Douglas's 

 plant, on wiiich the species was founded by Lehmann, is a low and leafy form, 

 quite cinereous, with altogether immature fruit. When well known it may give 

 cliaractcrs specifically to distinguish the following : 



Var. iiispiDUM. Stem and leaves truly hispid : nutlets broadly ovate (3 lines 

 long), with marginal prickles completely confluent for more than half their 

 length into a wing, the ventral face very smooth and lucid. — Eastern Oregon, 

 on rocky hills and gravelly banks, Cusick, 1880 and 1881 ; and near Boise City, 

 Idaho, Dr. T. E. Wilcox, 1881. 



* * * Perennial, with simple stems from a multicipital caudcx, compara- 

 tively large-flowered (limb of the nearly rotate corolla half an incli in 

 diameter), linear-leaved, sericeous : fruit wholly unknown; probably of this 

 genus. 



E. ciLiATUM. Cijnoglossum ciliatum, Dougl. in herb. Hook. ; Lehm. Pug. & 

 Hook. Fl. 1. c. 85. — Douglas's station noted in herb. Hook, is " On the gravelly 

 banks of mountain streams near the head-springs of the Columbia ; in herb. 

 Benth. Kettle Falls and Spokan River, 1826." The fruit is a great desideratum. 

 Cynorjiossum Ilowardi, with which it was rightly associated in the Syn. Flora, 

 p. 188, is evidently only a dwarf and probably alpine variety of the same 

 species, in which the sericeous hirsute pubescence is all still appressed. In the 

 plant of Douglas spreading and more bristly hairs fringe the margins of the 

 leaves with a kind of ciliation, and there are similar spreading or refle.xed 

 bristles on the lower part of the stem. This is a foot or so in height. 



3. Comparatively large-flowered, perennial, with tube of the corolla surpassing 

 the calyx and about the length of the lobes: nutlets of the globose fruit 

 equably armed over the whole surface and margins with long and slender 

 but flattish minutely glochidiate prickles. 



E. Californicum. E. dijj'usum, Gray, Syn. Fl. 1. c. (excluding small-flowered 

 specimens which belong to the true E diffnsnm, and excl. syn. Kellogg ?) not of 

 Lehm. — Sierra Nevada, California, from Mount Shasta southward. This was 

 VOL. XVII. (n. S. IX.) 15 



