gyQ POLEMONIACE.E. Pohmonium. 



lavender, or sometimes nearly wliitu) half an inch or mure in diameter : seeds one 

 or two in each cell. — /'. palchtltam, nun<;e ; Ledeb. Fl. Alt. Ic. t. 20; Lindl. Uut. 

 lieg. t. 1304. P. Richardsoiii, (Iraliani in I5t)t. iMag. t. 2800. 1'. capitatum, ijenlh. 

 in DC, not of Kschscholtz. 1'. pakhtrrimum, llouk. Bot. ]\Iag. t. 2i)79. 



High Sienu Nevada, at iiml iibovo 8,000 feet, fiDin MHri|)osa Co. (Brewer) to Lassen's Peak 

 (Lcviiuun) ; east to tlie liiglier Ki.cky Alouiitaiiis, uortli to the Arctic regions, Siberia, Spitz- 

 bergeii, kc. A polyiiiorpbuus siiecics. 



3. P. caeruleum, Linn. Olabrous 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 hjose corymbose cymes: leaflets 11 to 21, 

 from lincar-laiiccdluto to ovate oblong (.^ to U inches long): calyx cleft tour beyond 

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

 sliorter than the stamens or at least than the stylo : 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 tlie northern Atlantic States (sparingly), and through the north of Asia 

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

 the Kocky Mountains and those of Utali. 



§ 3. Ferenniat : corolla with truly funnelform tube longer than the calyx : wjlores- 

 cence capitate or spicate : leajlels mostly palinatety divided. 



4. P. confertum, <Iray. A span or more high from stout and branching or 

 tufted rootstucks, 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 : llowers in a 

 single dense capitate cluster, or in 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. IHGS, 73, 

 tV; Proc. Am. Acad. viii. 280. 



Among rocks on higli peaks of tlie Sierra Nevada, at 12,000 to 13,300 feet ; Mount (Joddard 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 anOP. humilc, and is known only in tlie more northern llocky Mountains. 



6. LCESELIA, Linn. 

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

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

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

 mucilaginous when wetted. — Rigid 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 withotit scarious dilated bracts. 



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

 very narrow, spinulose-niucronato ; the lower ]iinnately partcid into a few subulate 

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

 few-Uowered at the summit : calyx bractless : corolla scarlet, nearly salverfurm ; its 

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

 narrow tube : capillary hlaments 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. 



