PENTANDKIA. MONOGYNIA. 159 



nearly glabrous, ciineate-oblong, acute; flowers erect* 

 siiorter tlian the stipules. — Stamina 3, rarely 5; leaves 

 (throug-h a g'lass) subciliate. 



2. *capillaceu. Erect and glabrous, dichotomously and 

 diffusely branched, brandies capillary; leaves ovate, very 

 smooth, attenuated towards tlie l)ase, ratiier obtuse; flow- 

 ers spreading, longer than the stipules. — Stamina 3, rarely 

 5- Both these species are annual. 



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

 Persoon, namely tlie Q. Illspartica and Q.? trichotoma of 

 Japan. 



.55, PARONYCHIA. ToiirnefoH and Jussieu. 

 Anychia. Jlkhaux, 



Calix 5-parted, segments acumin.ate from 

 below the iiitei-nal apex, (or subsaccate) and co- 

 loured on the inner side. Corolla none. Five 

 iilaments alternating with tlie stamina. Style 

 bifid j stigmata capitate. Utnmlus 1 -seeded, 

 summit hemispherical, sometimes valvular? co- 

 vered by the connivent calix. 



Herbaceous, cespitose or procumbent plants; leaves 

 opposite, and stipulate; flowers cymose or terminal, 

 greenish or calycine, lined vvidi a petaloid membrane 

 separating from the calix at its summit. 



Species. 1. P. Hemiaroides. 2. *dichotoma. Cespi- 

 tose and procumbent, glabrous, leaves acerose, linear, 

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

 pules bifid, bractes shorter than tlie flowers; cyme dicho- 

 tomous; segments or" the calix minutely mucronate. 



Achyranthes dichutoma. Linn. lUecebmm dichotomum. 



WlLLD. 



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

 thick ami flat; stipules bifid, a little s'.iorter than the 

 leaves, white, chaffy, with subulate capillary points. 

 Leavt-s on the infertile branches imbricately crowded, on 

 the flower stems remr.te. Flower stellate; segments of 

 the calix fiu-nished internally v.ith arched scales near the 

 summit, points pungently acute. Sterile setae, short; 

 style bifid. Utriculus not spontaneously valvular, smooth. 

 Seed reniforn.; perispei m farinaceous; cotyiedones linear, 

 iiicurved, green.— 'I'he habit of this plant is somewhat like 

 Sedum refexmuy but not succulent. 



Habitat. On slaie rocks, by the margin of the river 

 Shenandoah, A'irginia, in the vicinity of Harper's Ferry. 



