PENTANDRIA MOXOGYKIA 163 



tha* the calyx. Style short; stigmas 2, diverging, or recurved. Capsule, or Utri* 



rle rough, minutely verrucose. Seed subrcniform-globosc, brown, smooth and 



shining. 



Hob* Dry hilly woodlands: common. Fl. June— Sept. Fr. Aug.— October. 



Obs. This plant is variable in its pubescence, the size of ihc stipules, and soim; 

 ilher features. The leaves at first are pellucid-punctate ; but they are finally 

 covered with rough ferruginous dots. Nuttall and De Candolle enumerate a sec - 

 ♦ nil species In the IT. States, as the genus now stands: but Dr. Torre;/ isprobatly 

 r$ore curreel in reducing it to a variety of the foregoing. 



to. Ovary inferior. 



124, THESIUM. L. Gen. PI. 410, 

 [A name adopted from the ancient Greek writers ; derivation obscure. J 



Perianth tubular-campanulatc, mostly 5-cleft ; segments colored. Sta- 

 mens opposite to, and inserted at the base of, the perianth-segments ; 

 anthers villosc externally. Capsule indehiscent, nut-like, 1-seeded, 

 crowned by the persistent perianth. 



Herbaceous, or suffruticose : leaves simple, alternate ; flowers variously dispos- 

 ed,— in the American species, in a terminal corymbulose panicle. Ac/. Ord. 64. 

 Lindl. Santalacbje. 



1. T. umbellatum, L. Leaves lance-ovate, or oblong, subscssile, 



entire, smooth ; flowers in small corymbose-paniculate umbels. Beck, 



Bot. p. 308. 



T. corymbulosum. Mx. Am. I. p. 112, 



Comandra umbellate. jYutt. Gen. 1. p. 157. Bart. Phil. \. p. 128. 



riorul. Cestr. p. 62. 



Umbellate Thesium. Vulgd — Bastard Toad-flax. 



Root perennial, somewhat ligneous, creeping horizontally. Stem 9 to 15 inches 

 high, smoothish, striate, or slightly grooved, often branched near the summit. 

 Leaves an inch to an incl\and half long, and one third to half an inch wide, ra- 

 ther obtuse, sometimes acute, or mucronate, sessile, or often narrowed to a Tery 

 ihort petiole, yellowish green, and somewhat glaucous. Flowers in small umbels^ 

 or fascicles, of 3 to 5, with involucrate bracts at base, the whole forming a corym- 

 bose panicle. Perianth adhering to or lined with a fleshy disk, with 5 obtuse 

 gland-like teeth alternating with the segments; segments lance-ovate, acute, 

 white. Anthers attached to the segments of the perianth by a tuft of yellow fila- 

 ments. Style shorter than the perianth, about equalling the stamens; stigma 

 simple. Capsule roundish, or sub-turbinate, angular, not opening, brittle, coated 

 with the base of the perianth. 



fab. Drysteriie rocky banks: frequent, FL June. Fr. September. 



Obs. The only species of the genus in the U. States. 



125. NYSSA. L. Xutt. Gen. 788. 

 [A name of obscure derivation.] 



DioicorsLY Polygamous: Stamixate Fl. Calyx 5-parted. C«* 

 rolla 0, Stamens 5 to 10 or 12, inserted round a peltate gland-lik# 

 iisk. Pistillate Fl. Calyx 5-cleft. Corolla 0. Stamens 5, or- 

 ■wanting. Style simple, mostly re volute. Drupe 1-seeded ; nut or*!, 

 striate. 





