HYPERICACEAE 29 



and horses with white feet and noses. The fact was taken for 

 granted, by the farmers: But, it must be confessed, that although 

 the plant continues to be abundant, the disease has nearly, if not 

 entirely, disappeared. It may be worthy of remark, that in the 

 year 1842, the St. John's-Wort totally failed to make its appearance 

 (in this County and I believe throughout Pennsylvania) ; even in 

 fields where it had been most abundant. The succeeding year, it 

 was quite rare ; but has since become about as common as ever, in 

 neglected fields. Why a perennial should have been thus affected, 

 seemed rather mysterious. 



2. H. corymb usum 9 Muhl. Stem terete; leaves elliptic-oblong, 

 somewhat clasping, conspicuously dotted ; corymb brachiate. 



H. punctatum. Lam. and Fl. Cestr. ed. 2. p. 322. 

 CORYMBOSE HYPERICUM. 



Stem 18 inches to 2 feet high, often nearly simple. Leaves 1 to 2 inches long. 

 Flowers in dense terminal corymbs. Sepals marked with black dots, and linear 

 pellucid punctures. Petals with numerous oblong black dots. 

 Hob. Open woodlands, fields, <fec. frequent. FL July. Fr. Sept. 



ft Capsule (brownish purple) 1-celled, with 3 strictly parietal placentae : petals ne< 

 Hack-dotted. Annuals. 



3. H. 111 lit Hum, L. Stem with spreading branches; leaves 

 ovate-oblong, partly clasping, 5-nerved; corymbs leafy. 



H. quinquenervium, Walt. $ Fl. Cestr. ed. 2. p. 323. 

 MUTILATED HYPERICUM. 



Stem 6 to 12 inches high, slender ; branches quadrangular. Leaves half an inch 

 to an inch long. Flowers small, in terminal leafy dichotomous corymbs. 

 Hob. Low grounds ; along rivulets : frequent. Ft. July. Fr. Sept. 



4. H. Canadense. L. Branches erect; leaves sublinear, nar- 

 rowed at base, 3-nerved ; corymbs naked. 



CANADIAN HYPERICUM. 



Stem 9 to 18 inches high, slender, nearly simple, slightly Angled. Leaves about 

 an inch long, minutely pellucid-punctuate, often with fascicles of small leaves in 

 the axils. Flowers in an oblong paniculate corymb. 

 Hob. Margins of rivulets: frequent. Fl, Aug. Fr. Octo. 



5. H. Sarotlira, MX. Stem short and bushy; leaves minute, 

 subulate, appressed; flowers solitary. 



BROOM HYPERICUM. Nit-weed. Pine-weed. 



Stem 4 to 6 or 8 inches high, brachiately branched from near the base; branches 

 nearly erect, angular or slightly winged. Flowers small, subsessile, axillary and 

 terminal. 

 Hob. Sandy fields, and roadsides : frequent. Fl. July. Fr. Sept. 



50. ELODE'A, Adans. 



[Gr. Elodes, growing in marshes : from its usual habitat.] 

 Sepals 5, equal. Petals 5, equal-sided. Stamens mostly 9, triadel- 

 phous, with an ovoid gland between each parcel. Capsule 3-celled. 

 Perennial herbs ; flowers purplish. 



1. E. Ylrginica, Nutt. Leaves ovate-oblong, very obtuse, rob- 



cordate at base and somewhat clasping. 



Hypexicum Virginicum, L. $ Fl. Ceatr. ed. 2. p. 322. 



