500 POLEMONIACE^E. Polemonium. 



lavender, or sometimes nearly white) half an inch or more in diameter : seeds one 

 or two in each cell. P. pulchellum, Bunge ; Ledeb. Fl. Alt. Ic. t. 20 ; Lindl. Bot. 

 Keg. t. 1304. P. Richardsoni, Graham in Bot. Mag. t. 2800. P. capitatum, Benth. 

 in DC., not of Eschscholtz. P. pulcherrimum, Hook. Bot. Mag. t. 2979. 



High Sierra Nevada, at and above 8,000 feet, from Mariposa Co. (Brewer) to Lassen's Peak 

 (Lemmori) east to the higher Rocky Mountains, north to the Arctic regions, Siberia, Spitz- 

 bergen, &c. A polymorphous species. 



3. P. caeruleum, Linn. Glabrous or viscid-pubescent, 2 or 3 feet (or in arctic- 

 alpine forms a span or two) in height, leafy, usually bearing numerous flowers in an 

 interrupted narrow thyrsoid panicle or in loose corymbose cymes : leaflets 11 to 21, 

 from linear-lanceolate to ovate-oblong (^ to 1| inches long): calyx cleft to or beyond 

 the middle : corolla an inch or more in diameter (bright blue, varying to white), 

 shorter than the stamens or at least than the style : seeds several in each cell, in 

 ours acutely angled. 



Low grounds, not rare from San Francisco to the high Sierra Nevada. Extends north to the 

 Arctic coast, and east to the northern Atlantic States (sparingly), and through the north of Asia 

 and Europe. A striking form, var. foliosissimum, Gray, approaching P. Mexicanum, occurs in 

 the Eocky Mountains and those of Utah. 



3. Perennial : corolla with truly funnelform tube longer than the calyx : inflores- 

 cence capitate or spicate : leaflets mostly pdlmately divided. 



4. P. COnfertum, Gray. A span or more high from stout and branching or 

 tufted rootstocks, on the summits of which the radical leaves are densely crowded, 

 glandular- viscid and musk-scented : leaves narrowly linear in general outline, erect ; 

 leaflets very numerous and crowded, sometimes even imbricated, sessile, most of 

 them 3 - 5-parted and seemingly whorled ; the divisions from round-oval to linear- 

 oblong, and from a line to a quarter of an inch or more in length : flowers in a 

 single dense capitate cluster, or fn age spicate, honey-scented : corolla (blue, and a 

 white variety) with narrow funnelform tube (half an inch long) twice or thrice the 

 length of the rounded lobes : ovules 3 in each cell. Proc. Acad. Philad. 1863, 73, 

 & Proc. Am. Acad. viii. 280. 



Among rocks on high peaks of the Sierra Nevada, at 12,000 to 13,300 feet ; Mount Goddard and 

 Mount Dana (Brewer), Mount Lyell (J. Muir) ; and on the higher mountains of Nevada and 

 Colorado. Ours are of the condensed and small-leaved form. 



P. VISCOSUM, Nutt. PI. Gamb. 154 (mainly, Nuttall having mixed the two), is between the 

 above and P. humile, and is known only in the more northern Rocky Mountains. 



5. LCESELIA, Linn. 



Flowers nearly as in Gilia Ipomopsis, except that the tubular-funnelform 

 corolla is irregular, as it were bilabiate (|), one of the cuueate or oblong lobes being 

 separated by deeper sinuses. Stamens declined. Seeds few in each cell, ovoid, 

 mucilaginous when wetted. Eigid herbs or undershrubs (natives of Mexico) ; 

 with alternate and simple and entire or sharply serrate leaves, and showy red or 

 blue flowers in terminal or lateral clusters, with or without scarious dilated bracts. 



1. L. tenuifolia, Gray. Nearly glabrous : stems woody at base, slender : leaves 

 very narrow, spinulose-mucronate ; the lower pinnately parted into a few subulate 

 short lobes ; the upper entire and filiform (about an inch long) : branches loosely 

 few-flowered at the summit : calyx bractless : corolla scarlet, nearly salverform ; its 

 oblong lobes truncately 3-toothed at the apex, about one third the length of the 

 narrow tube : capillary filaments inserted low down and much exserted : ovules 8 or 

 10 in each cell. Proc. Am. Acad. xi. 86. 



Tantillas Mountains, below San Diego, within the borders of Lower California, Mr. Dunn, 

 Dr. Palmer. Probably also within the southern line of the State. Corolla an inch long : calyx 

 3 lines long. See Appendix. 



