PENTANDRIA. MONOGYXIA. 159 



nearly glabrous, cuneate-oblong-, acute; flowers erectt 

 shox'ter than the sii pules. — Stamina 3, rarely 5; leaves 

 (throug-h a glass) subciliate. 



2. * capillacea. Erect and glabrous, dichotomously and 

 diffusely branched, branches capillary; leaves ovate, veiy 

 smooth, attenuated unvards liie base, rather obtuse; flow- 

 ers spreading, longer tiian the stipules. — Stamina o, rarely 

 5. Both these species are annual. 



Of this genus there are 2 otiier spec'es enumerated by 

 Fersoon, namely the Q. Hlspanica and Q..? tvichotoma of 

 Japan. 



235. PARONYCHIA. Tourncjort and Jussieu. 



Ax\YCHiA. J\Iichaiix. 



Caiix 5-partcd, segments aciiminafe from 

 below the ijiternal apex, (or subsaccatc) and co- 

 loured on the inner side. Corolla none. Five 

 filaments alternating with the stamina. Style 

 bilid; stigmata ca])itate. Utnculus 1 -seeded, 

 summit hemispherical, sometimes valvular? co- 

 vered by the con ni vent calix. 



Herbaceous, cespltose or procumbent plants; leaves 

 opposite, and stipulate; flowers cyniose or terminal, 

 greenish or calycine, lined with a petaioid membraiie 

 separating from the calix at its summit. 



Species. 1. P. Herniaroicles. 2. *dichotoma. Cespl- 

 tose and procumbent, glabrous, leaves acerose, linear, 

 acute, on either side marked with two grooved lines; sti- 

 pules bifid, bractes shorter than the fiowers; cyme dicho- 

 tomous; segments of the calix minutely mucronate. 



Achyraiitiies dichutoma. Linn. Illecebrwn dichotomum. 



WlLLD. 



Leaves about an inch long, half a line wide, somewhat 

 thick and flat; stipules bifid, a little shorter than the 

 leaves, white, chaffy, with subulate capillary points. 

 Leaves on the infertile branches imbricately crowded, on 

 the flower stems remote. Flower stellate; segments of 

 the calix furnished internally with arched scales near the 

 stimmit, points pungently acute. Sterile setae, short; 

 style bifid. -Utriculus not spontaneously valvular, smooth. 

 Seed reniform; peiispermfarmaceuus; cotyledones linear, 

 incurved, green.— The habit of this plant is somewhat like 

 Sedum refexian, but not succulent. 



Habi rAT. On slate rocks, by the margin of the river 

 Shenandoah, Virginia, in the vicinity of Harper's Ferry. 



