132 POLEMONIACE^. Phlox. 



-1— Leaves mote or less beset or ciliate with cobweb-like or woolly hairs, 



++ Very short, broadish or scale-like, soft, barely mucronate, appressed-imbricated : plants very 

 depressed, moss-like, forming pulvinate tufts : lobes of the corolla entire. 



P. Ricbardsonii, Hook. Rather loosely tufted : leaves oblong-lanceolate, 3 lines long, 

 sparsely lanate above, and with thickened reflexed margins ; the marcescent older ones lax 

 apd spreading : tube of the " brilliant lilac " corolla nearly twice the length of the calyx, 

 the broadly cuneate-obovate lobes 3 lines long. — Hook. Fl. ii. 73, 1. 160. — Arctic sea- 

 coast, Richardson, Pullen. 



P. bryoides, Nutt. Habit somewhat of Selaginella rupestris, copiously lanate : leaves 

 (even the marcescent ones) very densely appressed-imbricated in 4 strict ranks on the loosely 

 tufted branches, scale-like, ovate- or triangular-lanceolate, minute (only 1^ lines long), with 

 rather infiexed margins : tube of the corolla considerably longer than the calyx, its cune- 

 ate lobes barely a line and a half long. — PI. Gamb. 153. — High Rocky Mountains in 

 "Wyoming, lat. 42°-45°, NuitaH, Parry. 



P. muscoides, Nutt. Like the preceding, more resembling some canescent moss ; the 

 branches much tufted, very short ; leaves less strictly quadrifarious and less lanate, ovate- 

 lanceolate, mucronulate: tube of the corolla not surpassing the calyx. — Jour. Acad. 

 Philad. vii. 42, t. 6, fig. 2. — Rocky Mountains, at the sources of the Missouri, Wyeth. 



•H- ++ Leaves subulate or acerose, somewhat rigid, less appressed : plants forming broad mats, 2 to 

 4 inches high. 



P. Hoodii, Richards. Sparsely or loosely lanate, becoming glabrate ; leaves subulate, 

 rather rigid, erect, somewhat loosely imbricated ; tube of the (white 1 ) corolla not exceed- 

 ing the calyx ; its lobes obovate, entire, 2 to 21 lines long. — Frankl. Journ. Appx. t. 28. — 

 Sandy plains and hills of the Saskatchewan, &c., from lat. 54°, and along the Rocky 

 Mountains down to the south-west part of Wyoming. 



P. oanesoens, Torr. & Gray. More lanate and canescent: leaves subulate, imbri- 

 cated, soon recurved-spreading above the appressed base (3 to 5 lines long) ; tube of the 

 white corolla at length exceeding (often about twice the length of) the calyx ; the obovate 

 lobes entire or emarginate, 3 or 4 lines long. — Pacif . R. Rep. ii. 8, t. 6 ; Watson, Bot. 

 King, 259. — Rocky Mountains of Wyoming and Colorado to the Sierra Nevada in Califor- 

 nia and New Mexico. Apparently passes into the preceding. 



-i— -i— Leaves rigid (one third to lialf inch long), destitute of woolly or cobwebby hairs, the mar- 

 gins naked or ciliate with rigid or rather soft hairs : plants either densely or loosely tufted ; the' 

 leaves mostly less crowded. 



■ P. OSBSpitosa, Nutt. Leaves linear-subulate or oblong-linear, commonly much crowded, 

 hispid-ciliate, otherwise glabrous or with some short glandular-tipped rigid hairs : corolla 

 with tube somewhat exceeding the calyx; its lobes obovate, entire, 3 lines long. — Jour. 

 Acad. Philad. vii. 41, t. 6, fig. 1. — Var. riijuhi, Gray, in Proc. Am. Acad. 1. c. 254, is a de- 

 pressed form, with acerose-subulate at length recurved-spreading rigid leaves. P. rigida, 

 Benth. in DC. — Var. cofidensata, Gray, 1. c, is a very dwarf, pulvinate-tufted form, witli 

 short and erect closely imbricated leaves, only 2 or 3 lines long ; and is P. Hoodii, Gray, 

 Enum. PI. Parry (298) in Am. Jour. Sci. — Rocky Mountains of Colorado, Montana, &c., to 

 Oregon and the high Sierra in California. Laxer narrow-leaved forms pass into the ne.xt. 



- P. Douglasii, Hook. Less densely tufted, either pubescent or nearly glabrous : leaves 

 acerose or narrowly linear-subidate, less rigid and usually less crowded, often spreading, 

 their margins hirsutely-ciliate next the base or naked : flowers subsessile or short-pedun- 

 cled: corolla (purple, lilac, or white) with tube more or less e.xceeding the calyx, and 

 obovate entire lobes about 3 lines long. — Hook. Fl. ii. 7-3, t. 158; Gray, Proc. Am. Acad. 

 1. c. — Eastern and western sides of the Rocky Mountains, from Montana to Utah, west to 

 Oregon and the borders of California. Passes into the subjoined forms. 



~~ Var. diffusa, Gray, 1. c, with more loosely spreading or cespitose-decumbent stems, 

 and lax spreading leaves, growing in moister places. — P. c/i/fiisa, Benth. PI. Hartw. 325. 

 — Western slope of the Sierra Nevada and Cascade Mountains, California to British 

 Columbia. 



Var. longif olia, Gray, 1. c, a rigid form, of more arid regions, and long and narrow 

 less fascicled leaves (linear-filiform or acerose, 5 to 8 lines long, either ascending or spread- 

 ing), approaching P. lonrjifolia. — W. Nebraska to Oregon and N. E. California. 



