l.SSI).] IJOTANICAL (JAZETTE. 107 



* * •■■ * Styles 3, long, distinct ami usually spreading ; stigmas capitate: cap- 

 sule ovate, 3-celled, more or less glandular and exhaling a heavy odor when 

 crushed ; seeds as in the last: whole plant (including petals and anthers) more 

 or less black dotted: herl)s, with rather large leaves and flowers, the petals 

 much longer tlian the sepals. 



t Eastern species: plants 1 to 4 feet high : capsules mostly not lohed. 



19. H. PERFORATUM L. Much branched : leaves linear to 

 oblong, obtuse, mostly tapering at base, half to an inch long, 1 

 to 5 lines wide : llowcrs numerous in loose cymes, about an inch 

 in diameter: sej)als linear-lanceolate, very acute or acuminate: 

 petals bright yellow, black dotted along the margin : capsule 

 conical-ovate, 2 or 3 lines long. 



Common everywhere in old fields as a weed difficult to extirpate. (Nat. 

 from Europe.) 



20. H. niaculatum Walter. Simple below, more or less 

 branched above, conspicuously dotted all over: leaves oblong to 

 lance-ovate, obtuse or acute, more or less clasping, sometimes 

 tapering at base, 1 to 3 inches long, 4 to 9 lines Avide : flowers 

 smaller, 3 to 6 lines iii diameter, crowded : sepals lanceolate to 

 ovate, acute : petals pale yellow, with black lines as well as dots : 

 capside conical-ovate, 2 or 3 lines long. — Fl. Car. 189; Michx. 

 Fl. ii. 80; Torr. & Gray, Fl. i. 161 and (373. 



H. Virffinicum Walter, 189. 



H.pundaium Lam. Diet. iv. 164 : Chois. in DC. Prodr. i, 547 ; Reich. Hort. 

 Bot. i. 61, t. 88. 



H. corymbosun Muhl. Willd. Spec. iii. 1457; Torr. & Gray, 1. c. 1(;0; (Jray, 

 Manual, 85. 



JI. micranlhnm Chois. Prodr. Plyper. 44, t. 5; Hook. Fl. Bor.-Am. i. 100. 



From Canada and Minnesota to Florida and Texas. 



This species is quite variable in the length of its styles, and upon the char- 

 acters of short and long styles H. corymbosum and H. maculatum were form- 

 erly separated. This distinction, however, does not hold, as although the 

 northern forms are mostly shorter styled the same forms are also found at the 

 south associated with the longer styled forms. Besides it is only in extreme 

 cases that the styles are very different in length, and there is every gradation 

 between. The long styled forms of the south represent this species as formerly 

 defined, which must now be made to include also II. corymbosum. The south- 

 ern plants also usually have more glandular capsules. 



21. H.^raveolen.s BrfKLEV. Simple, or somewhat branched 

 above: leaves large, elliptical-oblong, obtuse, closely sessile or 

 clasping, 2 or 3 inches long, about an inch wide: Howers an inch 

 or more in diameter, in few-Uowered cymes : sepals lanceolate, 



