174 PENTANDRIA DIUYKl* 



of an inch long, with subulate bracts at Vase. Corolla greenish orange. LepemiJ. . 

 ubi bright orange-color; segments erect, lance-oblong, distinct, abruptly and acut^ 

 ly narrowed at bus , twice as long asthe antheridium,the infolded margin with a 

 obtuse tooth on each side near the base ; horns subt< rete, tapering gradually to • 

 'point, slightly incurved, nearly as long as the segments. Antheridium greyigh or 

 an^e, tinged with green, Fbllicles about 1 Inch* s long, and half an inch to thre 

 quarters in diameter, somewhat ventricose, acuminate, tomentose-pubescent. 

 Kab. Sandy old fi« 1 is : along fc nee-rows : frequent 11 July-Aug. FY. Sept.-Oci 

 Ob§. The A. ascumbens, JI//7 . is very properly, I think, reduced to a variet, 

 of this. The root is | toss ssed of some medicinal properties ; and has beenauitt 

 popular as a remedy for Pleurisy, iysentt ry, &c. but it is not much attended to of 

 late. This is the only species, with us, which is nut lactescent 



$2. Lepanthium without horns : Leaves opposite : Follicles unarmed 



11. A. vmiBiFLOTiA, Haf. var. obovata, Torr. Stem simple, tomen- 

 tose ; leaves oval, ovate, and obovate, tomentose-pubescent on both sided 

 •n very short petioles ; umbels subtcrminal, solitary, subsessile, nodding 

 Beck, Bot. p. 237. * 



A. nutans. MuhL Catal. p. 2$. 

 Accra tes viridiflora. Eat. J Tan. p. 2. 



Gree v-flo \v eked A sc lepi a s. 



Stem 1 to 2 feet high, erect, tomentose-pubescent. Leaves* to 3 inches long, anf 

 1 to 2 and a half inches wide, varying from ovate to oval, roundish, and obovate of- 

 ten conspicuously emarginate, mucronate, thick and cetaceous ; petioles scarcely 

 one fourth of an inch long. Umbels 2 to 3 or 4, axillary, lubterminal, sul glol se 

 iense-flowercd, cernuous, on very short thick peduncles; pedicels about half ai 

 inch lofl?, vilbse, with linear-lanceolate tomentose bra ts at base. Corolla pale 

 green. Lepanthium greenish white ; segments without horns, distinct, lance-ob- 

 long, obtuse, erect, a little shorter than the antheridium, the margin with a mem 

 branaceous rather oblique and obtuse tooth, which seems to be ad n ate to it on each 

 side, near the base,— each segment alternating with a small spatulate process op- 

 t>osite the base of the angles or wings of the antheridium. FolluUs 3 or 4 inches 

 long, and about 3 fourths of an inch in diameter, vemricoae, acuminate, tomentose 

 pubescent. 



Nab. Great Valley ; limestone bank, near Brooke's Mill : rare. Fl. July. Fr. Sept- 

 Obs. This plant differs in some striking characters from its congeners j but iu 

 general resemblance is so strong, that it can hardly make more than a subgenus 

 It is rare in this County,-having only been found, as yet, in the above locality 

 The rar. lanceolata, Torr. I have seen at Barton, Penna. growing also on (fan* 

 stone banks. Eight or nine additional species have been enumerated in the # 

 State?. 



fo. Corolla pentapetalous* 



130. HEUCHERA. /,. JV u tt. Gen. 252 

 [Named in honor of John Henry ITeucher ; a German Botanist.g 



Calyx persistent, mostly 5-cleft. Petals email, inserted on the eal« 

 at the c efts. Styles 2, distinct, long, persistent Capsule bhostrita 

 adnate to the calyx below, opening between the beak* I-cetled, mj? 



