94 GENTIANACEAE 



lowish, commonly with dark dots, rotate, deeply 4 or 5-parted, each lobe bearing 

 1 or 2 fringed glands. Stamens inserted on the base of the corolla. Style per- 

 sistent. Capsule coriaceous, more or less flattened, surroi;nded by the persistent 

 dry corolla. — Species about 20, North America. (Emanuel Sweert, Dutch botan- 

 ist, 16th century.) 



Flowers 5-merous, 1 or 2 in an axil; Tulare and Inyo Cos 1. S. perenni^. 



Flowers 4-merou3. 



Stem leaves in opposite pairs ; glands single. 



Flowers in a narrow spLke-like interrupted panicle ; glands not lobed. 



Gland linear or oblong; leaves white-margined; northern Cal 2. S. albicaulis. 



Gland quadrate; leaves not white-margined; S. Cal 3. S. neglecta. 



Flowers in a broad or loose panicle ; leaves white-margined. 



Herbage puberulent ; panicle loose, 6 inches long ; gland oblong, notched at base ; 



Inyo Co 4. S. puierulenta. 



Herbage glabrous ; panicle broad, 1 to 2 feet long ; gland like an inverted yoke or 



horse-shoe; cismontane S. Cal 5. S. parryi. 



Stem leaves in whorls of 3 to 7. 



Panicle broad, branching; glands single, elongated-oblong, forked at summit ; leaves with 



silvery-white margins; e. Mohave Desert 6. S. albomarginata. 



Panicle long and narrow (wand-like) ; coroUa-lobes with a crown at base. 



Leaves not white-margined ; glands 2 to each corolla-lobe ; crown at base of corolla- 

 lobes conspicuous, cleft into narrow segments; Sierra Nevada and North 



Coast Eanges 7. S. radiata. 



Leaves white-margined ; glands none ; crown at base of corolla-lobes tubular, deeply 

 2-lobed; Kern River basin 8. S. tubulosa. 



1. S. perennis L. var. obtusa Griseb. Pelwoet. Plants 5 to 18 inches high; 

 stem single, arising from a short rootstock; herbage glabrous; leaves mostly basal, 

 the blades obovate or elliptic, 1 to 2i/2 inches long, contracted to a ligulate petiole 

 Yo to lyo times as long; stem leaves opposite, or partly alternate, remote and mostly 

 smaller; panicle narrow, sometimes reduced to a raceme; flowers solitary or in 2s 

 in the axils of the reduced upper leaves or bracts, on pedicels Y^ to 1 inch long; 

 corolla greenish-white, veined or suffused with bluish-purple, its lobes oblong- 

 ovate, 4 to 5 lines long; glands 2 on the base of each lobe, elliptic, fringed all around; 

 capsule elliptic, flattened, 5 lines long. 



High mountain meadows and damp places, 8500 to 10,300 feet : southern Sierra 

 Nevada in Tulare and Inyo Cos. Oregon to Colorado and Alaska. Asia, Europe. 

 July-Aug. 



Locs. — Hockett Mdws., Eall 8473 ; Mineral King, Eall # Babcock 5645 ; Volcano Mdws., Ball 

 4- Babcoek 5492; Crabtree Mdws., Culbertson 4553; Wildflower Lake, below Kearsarge Pass, 

 Jepson 903. 



Eefs. — SWERTIA PERENNIS L., Sp. PI. 226 (1753), type European. Var. obtusa Griseb., Gen. 

 et Sp. Gent. 331 (1839) ; Jepson, Man. 766 (1925). S. obtusa Ledeb., Mem. Acad. Imp. Sci. St. 

 Petersbourg, 5:526 (1812). S. covillei Greene, Lflts. 1:77 (1904), type loc. near Mt. Whitney 

 (Crabtree Mdws., Culbertson, and Volcano Mdws., Coville). 



2. S. albicaulis Dougl. Modoc Feasera. Plants 10 to 18 inches high; stems 

 several from the root-crown, slender; herbage minutely pruinose-puberulent; leaf- 

 blades linear-oblanceolate, 3 to 7 or 9 inches long; stem-leaves opposite; panicle 

 narrow, interrupted, 2 to 6 inches long, formed of dense whorl-like cymes, the cj-mes 

 sessile or the lower peduncled; corolla pale bluish, purple-dotted inside, S^/^ lines 

 long; corolla-lobes ovate-lanceolate, acuminate, each with a single greenish gland; 

 gland linear or oblong, nearly naked above; scales between the filaments setiform- 

 dissected; capsule elliptic, flattened, 4 to 6 lines long. 



Dry valleys or ridges, 4000 to 5000 feet : interior plateau region in Siskiyou and 

 Modoc Cos. North to eastern Wa,shington and western Montana. May- Aug. 



Locs. — Modoc Co.: Likely, L. S. Smith; Badger Spr., Warner Mts., L. S. Smith 1165. Siski- 

 you Co.: Sheep Eock, Mt. Shasta, Eall # Babcoch 4113. 



Var. nitida (Benth.) Jepson comb. n. Shasta Fraseea. (Fig. 341.) Herbage glabrous; 

 corolla-lobea ovate, shortly and often abruptly acute; scales between the stamen filaments thin. 



