1886.] BOTANICAL, GAZETTE. 87 



This leaves, as the oldest unoccupied name, -H. opacum of Torrey & Gray, which 

 accordingly reappears as a specific name. 



tt Placentiv projecting a little, or not at all : sepals unequal. 



= Leaves mostly linear, with rather large and scattered pellucid dots : flow- 

 ers in somewhat leafy-bracted cymes: capsule conical or globose; seeds large, 

 oval, strongly rugose transversely. 



13. H. spliarocarpuru Micnx. Simple or l)ranchcd, 1 to 3 

 feet high : leaves linear to narrowly oblong, mostly obtuse, 2 to 3 

 inches long, 3 to 6 lines wide: cyme loosely -flowered, dicho- 

 tomal flower mostly sessile: sepals varying from small and linear 

 to ovate and as long as the petals : capsule from depressed glo- 

 bose to ovoid, about 2 lines long ; rhaphe almost winged. — Fl. ii. 

 78; Torr. & Gray, Fh i. 163. 



Kocky banks of the Ohio and its tributaries, southward to Arkansas. 



This stands as a very good species, easily distinguished from any likely to 

 be confounded with it, by its strictly one-celled capsule and large very rough 

 seeds. In fact, the seeds are the most characteristic ones of the genus. By some 

 mistake the specific name has been often written H. sphcerocarpon, while the 

 original name is as above. 



14. H. dolabrifornie Vent. Low, straggling, 6 to 18 inches 

 high: leaves linear to linear -lanceolate, widely sj)reading, about 

 an inch long, a line or two wide, mostly acute : cyme few-flowered, 

 dichotomal flower pedicelled: sepals large and foliaceons, lance- 

 olate to ovate, acute or acuminate, as long as the petals: capsule 

 ovate-conical, almost triquetrous, about 3 lines long, coriaceous. 

 — Hort. Cels. t 45; Pursh, 378; Chois. in DC. Prodr. i. 547; 

 Torr. & Gray, Fl. i. 162. 



H. procumbens Desf. Willd. Spec. iii. 1450; Michx. Fl. ii. 81; Pursh, 379; 

 Chois. 1. c. 



Dry hills, Kentucky and Tennessee. 



= = Leaves oblong, obtuse : flowers in nearly naked cymes: capsule ovate ; 

 seeds oblong, minutely striate and pitted. 



15. H. opacum Torr. & Gray. One to four feet high : 

 leaves linear oblong, about an inch long, 2 to 4 lines wide, closely 

 sessile, ])ellucid-punctate with minute crowded dots: flowers 3 to 

 5 lines in diameter, in divaricate cymes, the dichotomal flowers 

 mo.stly sessile : sepals oblong to obovate, about half as long as 

 the bright yellow petals: capsule 2 to 3 lines long. — Fl. i. 163. 



Ii. jiundulotium Ijertol. I'ot. Misc. xiii. 18, t. .'5, f. 2. 



B. cislifnlium Watson, Bibl. Index, Polypct. 125, not Lam. 



South Carolina to Georgia, Florida, and Mississippi. 



