Ilypcricum. 11 VI'KKICACK.E. 



287 



c. Sepals small : flowers small, in naked cymes: leaves rather hroa-l, thin, an.l veinv m.mc. 

 what shruhl.y at base, a foot or two hij^h, Him|il« or hranihinK. 

 H. adpressum, lUitros. Leaves linear-lanceolato to narn^wly ohlonR, m.*tlv »cme 

 usiMlly aso lulmg, ahoiit 2 inches long. 3 to 4 lines l,r..ad, revolute. |H-llu,-idi.uncUte with- 

 out black dots, translucently veiny : cy.nes l.-ufy only at baM-. .iichoiomal llow-n. in.»tl» 

 very 8hort-pedicelle.l : sepals linear to lanceolate, a.nte. \ to | ,« long :«. tho ih-u1« often 

 reflexed: capsule ovate to oblong, about 'i lines long; sccdn oblong. - Fl. I'hilad. *ii. 15- 

 Torr. & (Jray. Fl. i. 159. //. /Jo„<i,,arte,c, Barton, Fl. N. Am. iii. 95. t 106. I/./atfig.atum', 

 Ell. Sk. ii. 31 ; Torr. & Cray, 1. c. 1G6. //. aJpussum, var. f<nti,jUitum. Torr. & Grmy, 1. c! 

 673. — Moist ground, Massachu.setts to New Jersey, Pennsylvania, and Georgia. 



H. nudiflorum, Miciix. Leaves thinner, ovate-lanccohitc or oblong, obtuse, 2 to .1 inrhiHi 

 long, i, ini ii broad, pellucid-punctato and with very small crowded black dots : ' 

 culate, naked at ba.se, loo.sely flowered, dichotonial (lowers pedicelled : wpals \ 

 to oblong, about \ as long as the \^eU\\» : capsule ovate-conical, atn.ut 3 lin< - 

 cylindrical, with prominent rhaphe. — Michx. in Willd. Spec iii. U.-iG; Torr. JL C.rav.l. c. 

 162. //. o*7/7o//»/H, Coulter, Hot. Gaz. xi. 86, not Lam. — From North Carolina tlm'iugh 

 the Gulf States to Texas. The more naked cymes, and the broader leaves with their vcr/ 

 numerous and crowded i)lack dots, serve to distinguish this species easily from the last. 



= = riacentaj projecting a little, or not at all : sepals uneijual. 



a. Leaves mostly linear, with rather large and scattereti pellucid dots: flowers in somewhat 

 leafy-bracted cymes: capsule conical or globose; seeds large, oval, strongly nig'-M 



transversely. 



H. cistifolium, L.\m. Sini].lc or l)ranched, 1 to 3 feet high : leaves linear Ut narn«wly 

 oblong, mostly obtuse, 2 to 3 inches long, 3 to 6 lines wide: cyme 1<k)8«'1v flowered, diclu*- 

 omal flower mostly sessile : sepals varying from small and linear to ovate and as long as 

 the petals : capsule from depres.sed-globose to ovoid, about 2 lines long ; seeds with rhaplio 

 almost winged. — Diet. iv. 158. not Coulter. Rot. Gaz. xi. 86. //. rosmarini/Ji„m, I.am. 1. c. 

 159, not Torr. & Gray. Fl. i. 1.59. //. spharocarpum, Michx. Fl. ii. 78 ; Torr. & Gray, 1. c. 16,1 

 (spfuerocorpon) ; Coulter, 1. c. 87. — Kocky banks of the Ohio and its tributiiries, stmthward 

 to Arkan.sas and Al;il)ama. Tlie hirge and rough see<ls are the most characteristic (tnes of 

 the genus, ami serve to distinguish the species readily from any others likely to be con- 

 founded with it. 



H. dolabriforme, Vent. Low, straggling, i to IJ feet high: leaves linear (rarely nar- 

 rowly oblong-linear), widely spre;iding, an inch or less long, I to 2 lines broad, mostly acute : 

 cyme usually few-flowered, dichott)mal flower pedicelled : sepals large and foli.iceous, lanceo- 

 late to ovate, acute or acuminate, as long as the jietals : capsule ovate-conical, coriai-oous. 

 almost tri(iuetrous, about 3 lines long. — Ilort. Cels. t. 45 ; Fursh. 1. c. 378 ; Chois. 1. c. 547 ; 

 Torr. & Gray, Fl. i. 162. //. prorumUtts, Desf. in Willd. Spec. iii. 1450; Michx. Fl. ii. 81 ; 

 Pursh, 1. c. 379 ; Chois. 1. c. — Dry sterile hills, Kentucky, Tennessee, and Missouri. 



b. Leaves oblong, obtuse : flowers in nearly naked cymes : capsule ovate ; seeds oblong, 

 minutely striate and pitted. 



H. Opdcum, Torr. & Gr.\y. One to four feet high: leaves linear oblong. a!>out I inch 

 long and 2 to 4 lines wide, closely .'^essile. ])ellucid-punct;ite with minute crowilod dot.*, often 

 rusty beneath : flowers 3 to 5 lines brosid, in divarirate cymes, the dichotom.il flowers niootly 

 sessile: sepals oblong to obovate, about half as lon'.j a.s the bright yellow |H'taIs : ca|>aulc 2 

 to 3 lines long. — Fl. i. 163. //. punrtulosum, nert<d. Misc. Hot. xiii. 18. t. 3. f. 2. //. md- 

 folium, Torr. & Grav, 1. c. 674, not Lam. — South Carolina and Georgia to Florida and 

 Mi,-^sissip,.i. 



H. ellipticum, IIdok. Mostly herb.iceous. 10 to 20 inches high: leaves elliptical-oblong, 

 sessile or tapering at b.ise, ^ to \i inches long, 3 to 5 lines bn^Kl, pelhnid pniicCite with 

 large scattered dots, translucently veiny: flowers 4 to 6 lines liroad. «cia.«i>>n.illy 4 meroiia, 

 in few-flowered cymes, the dichotonial flowers pedicelled : sepals mostly f<diaceous and sprrAd- 

 ing, oblanceolate to narrowly obovate, usually shorter than the p;ile yellow petals: ca|«ul9 

 as in the hist. — Fl. Hor.-Am. i. 110; Torr. & (Jray. Fl. i. 164. //. tpharocarpum. Barton. 



