Hypericum. HYPERICACE^. 289 



and Minnesota to Florida and Texas. Exceedingly variable in foliage and in habit. 

 Mountain forms are sometimes strictly simple, while in the southwest forms occur with 

 almost the same branching habit as in H. perforatum. 



H. graveolens, Buckley. Simple or somewhat branched above : leaves large, elliptical- 

 oblong, obtuse, closely sessile or clasping, 2 to 3 inches long, about an inch wide : flowers 

 usually an inch or more broad, in few-flowered cymes : sepals lanceolate, very acute : petals 

 very scantily black-dotted, if at all : capsule somewhat lobed, ovate, 3 to 5 lines long. — Am. 

 Jour. Sci. ser. 1, xlv. 174. Gray, Gen. 111. i. 214, t. 92. — Mountains of S. W. Virginia and 

 North Carolina. 



++ ++ Western species : plants 3 inches to 2 feet high : capsules 3-lobed, 3 to 4 lines long : 

 petals bright yellow, often tinged with purple, with a few black dots along the margin. 



H. formosum, HBK. From running rootstocks, simple or somewhat branching, often 

 with numerous small branchlets, -^ to 2 feet high, usuall}' conspicuously black-dotted along 

 margins of leaves, sepals, and petals, and upon anthers : leaves ovate-oblong, obtuse, more or 

 less clasping, about an inch long and half inch or more broad, those of the branchlets much 

 smaller and often tapering at base : flowers ^ to 1 inch broad, in loose corymbs : sepals lan- 

 ceolate to ovate, obtuse or acute. — Nov. Gen. & Spec. v. 196. H. Scouleri, Hook. Fl. Bor.- 

 Am. i. Ill ; Torr. & Gray, Fl. i. 160. H. formosum, var. Scouleri, Coulter, 1. c. 108. — 

 Throughout the whole mountain region of western North America. The separation of a 

 northern form, H. Scouleri, from tlie Mexican H. formosum seems to be entirely untenable. 

 Certain forms of the Pacific and Great Basin regions, with narrow leaves tapering at base, 

 approach the following species, which may be but a variety. 



H. COncinnum, Benth. Somewhat shrubby and branching at base, 3 to 18 inches high, 

 black-dotted as in the last, but often scantily so, very leafy : leaves thickish, linear to oblong, 

 usually not clasping, commonly folded, | to 1 inch long or more, 1 to 4 lines broad, acute ; 

 flowers over 1 inch broad, few, in rather close clusters at summit of stem : sepals ovate, 

 mucronate-acute or very acuminate, longer than the capsule. — PI. Hartw. 300 ; Brew. & 

 Wats. Bot. Calif, i. 81. H. bracteatum, Kellogg, Proc. Calif. Acad. Sci. i. 65. — Apparently 

 restricted to the drier mountain regions of Central California. While the lower and more 

 shrubby habit, and the narrower and acute not clasping leaves usually distinguish this species 

 easily from the last, there are forms with the leaves narrow and acute, but more or less 

 clasping, which are still clearly H. concinnum, although not so easily distinguished. 

 * * Stamens 5 to 20, mostly in 3 clusters : styles 3 (sometimes 2), short, distinct ; stigmas 

 capitate : capsules ovate to conical, one-celled : small and slender annuals, with very small 

 flowers, and petals shorter than the sepals. 



■i— Procumbent or ascending, or forming dense mats, diffusely branching : leaves rather 

 broad, obtuse, clasping : capsule a line or two long. 



H. anagalloides, Cham. & Schlecht. Often forming dense mats : stems an inch to a 

 foot long : leaves oblong to broadly ovate, or even orbicular, very obtuse, 5- or 7-nerved at 

 base, 2 to 6 lines long and almost as broad : flowers 3 to 4 lines broad, in few-flowered naked 

 or leafy cymes : stamens 15 to 20: sepals foliaceous, unequal, lanceolate to broadly ovate, 

 longer than the ovate capsules. — Linnaea, iii. 127 ; Torr. & Gray, Fl. i. 167, 674. '^H. mu- 

 tilum, Wats. Bot. King Exp. 46. — Wet grounds, from Lower California to Brit. Columbia, 

 and extending eastward into MontaTia. The Pacific representative of tlie next species, which 

 it approaches too nearly in certain forms. Both are very closely allied to the Asiatic H. 

 Japonicum, Thunb., and all three may constitute but one specific type. An erect form from 

 a decumbent base, with leaves equalling or exceeding the internodes, and a terminal cyme 

 on a short naked peduncle, has been set apart by Professor E. L. Greene as var. Nevadense 

 (Fl. Francis. 113). 



H. mutilum, L. Like the last, but move erect and diffusely branching, 3 inches to 2 feet 

 high : leaves oldong or ovate, or even orbicular, h to 1 incli long, 2 to 4 lines broad, 5-nerved 

 at base: flowers in very loose leafy cymes: stamens 6 to 12: sepals linear to lanceolate, 

 u.sually shorter than the oblong or ovate capsule. — Spec. ii. 787; Torr. & Gray, Fl. i. 164. 

 Fl. quinquevervium, W.alt. Car. 190 ; Chois. in DC. Prodr. i. 550; Hook. Fl. Bor.-Am. i. 110. 

 II. parvlflorum, Willd. Spec. iii. 1456; Pursh, Fl. ii. 377. //. stellarioides, HBK. Nov. 



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