60 PRIilULACE^. Douglasia. 



* # Flowers solitary terminating the leafy shoots : tube of the corolla barely equalling the calyx : 

 k'ave's mure or les5 imbricated in the manner of D. }^'Uuliai.a. 



- D. montana, Gray. Pulvinate-cespitose, an inch or two high, nearly glabrous : leaves 



subulate, minutely somewhat ciliate, 2 lines long, somewhat interruptedly imbrieate-elus- 



tered : pedicel not longer than the flower, 1-2-bracteolate near the calyx : corolla-lobes 



cuneate-obovate, 2 lines long. — Proc. Am. Acad. vii. 'ull. — Rocky Mountains around 



__Hel^na City, Montana, /I/. A. Brown. Owl Creek Jits., ^Vyoming, J. D. Putnam. 



IDBOSACE, Tourn. (Ancient Greek name of some sea-plant or 

 zoophyte, curiously transferred to these little plants of the mountains.) — Small 

 annuals or perennials, of various habit, numerous in species in the Old "World, 

 few in the colder regions of the New : fl. summer. 



* Perennials, proliferously branched at base and cespitosc : leaves rosulate-imbricatcd at the base 

 of the many-liowered scapes : capsule usually few-seeded : umbel several-lio^\ ered. 



A. Chamaejasnie, Host. I^caves in more or less open rosulate tufts, from lanceolate 



to oblong-spatulate or ovate, carinate-1-nerved (.3 to 6 lines long), at least their margins 

 with the scape (1 to 3 inches high) and somewhat capitate umbel villous with many-joinlred 

 hairs : corolla white with yellowish eye (3 or 4 lines in diameter). — Koch, Syn. ed. 2, 071 ; 

 Hook. Fl. ii. 119. A. carinata, Torr. in Ann. Lye. N. Y. i. 30, t. 1 ; Sweet, Brit. PI. Card, 

 ser. 2, 1. 106. A. villosa, var. latifolia, Ledeb. Fl. Alt. ; Herder, Bot. IJadde, iii. 118. Indeed 

 it may pass into A. villosa, L. — Alpine region of the Rocky Mountains from Colorado 

 northward to the arctic coast, Behring Straits and islands. (N. E. Asia to Eu.) 



* * Annuals, acaulescent, with slender root, an open rosulate circle of leaves, and naked scapes, 

 bearing an involucrate few-many-tlowcred lunbel: capsule many-seeded: corolla white, small. 



-1— Calyx-tube obpyramidal in fruit, whitish with conspicuous green teeth, which mostly surpass 

 the capsule. 



" A , occidentalis, Pursh. Minutely pubescent, not over 3 inches high : radical leaves 

 and those of the conspicuous involucre oblong-ovate or spatulate, entire, sessile : scapes 

 diffuse : bracts of the involucre ovate or oblong : lobes of the calyx triangular-lanceolate : 

 oblong or deltoid, as long as the tube, still longer in fruit, foliaceous : lobes of the corolla 

 oblong, shorter than the calyx. — Fl. i. 137; Nutt. Gen. i. 118. — Banks of the Missouri 

 from the mountains down to St. Louis, and extending down the Mississippi, and into Illi- 

 nois : also Utah, Colorado, and New Mexico. 



°^^A. septentrionalis, L. Almost glabrous: leaves lanceolate or oblong-lanceolate, nar- 

 rowed at base (often into a sort of winged petiole), from irregularly denticulate to laciniate- 

 toothed : scapes erect, usually numerous, 2 to 10 inches high : bracts of the small involucre 

 subulate : umbel several-many-flowered : pedicels filiform, mostly long : lobes of the calyx 

 mostly shorter than the tube, rather shorter than the obovate lobes of tlie corolla, from 

 triangular to subulate-lanceolate, acute. — Lam. 111. t. 98, f. 2; Fl. Dan. t. 7 ; Bot. Mag. 

 t. 2021. A. donrjata, Richards., not L. A. linearis, Graham in Edinb. Phil. Jour. 1829? — 

 Rocky Mountains, both high alpine (and small), and at much lower elevations, New Mexico 

 and Nevada to the arctic sea coast : also N. W. coast. (Kamtschatka to Eu. ) 



"Var. subulifera. Lobes of the calyx slender-subulate, as long as the tube, surpass- 

 ing the corolla, — Rocky Mountains near Boulder City, Colorado, //. G. French. San 

 Bernardino, California, Parry & Lcmmon. 



-i— M— Cilyx-tcibe hemi.spherical in fruit; the short teeth bareh' greenish and rather shorter than 

 tlie globular capsule. 



-A. flliforrais, Retz. Glabrous; leaves, scapes (1 to 4 inches high), and pedicels nearly 



as in the preceding or more capillary : flowers less than a line and globose capsule only a 

 line long: calyx-teeth broadly triangular, shorter than the very small ' corolla. — Obs. ii. 

 10; DC. Prodr. viii. •''iS; Reichenb, Ic. Germ. xvii. t. 60 ; Gray, in Proc. Acad. Pliilad. 1863, 

 70. — Rocky JJountains^ from Colorado and Utah to Wyoming. (N. Asia.) 



6. TRIENTALIS, L. '^ar-flower, Ciiickweed-Wixtergreex. 

 (Latin, for the third of a foot high.) — Low and ghibrous perennials ; the simple 

 stem, from filiform rootstock somewhat tuberous-thickened at apex, bearing scat- 



