46 CARTOPHTLLACEJE. (PINK FAMILY.) 



1. PARONYCHIA, Tourn. 



Sepals 5, united at the base, concave and mucronatc or awned at the apex. 

 Petals bristle-like or tooth-like, alternate with the 5 stamens, and inserted with 

 them on the base of the calyx. Style long, 2-cleft. Utricle included. Seed 

 resupinate. Radicle superior or ascending. — Low herbs, with conspicuous sil- 

 very stipules, and minute flowers in loose or compact cymes. 



1 • P. dichotoma, Nutt. Smooth ; stems slender, erect ; leaves linear- 

 subulate ; those of the barren stems imbricated ; cymes fastigiatc, diffuse ; se- 

 pals linear, 3-ribbed, slender-pointed; petals minute, bristle-like. (Anychia 

 argyrocoma, Ell.) — Rocks on the mountains of North Carolina, and westward. 

 July -Nov. U. —Stems 6' -12' high. 



2. P. argyrocoma, Nutt. Minutely pubescent ; stems tufted, ascending ; 

 leaves linear, acute ; cymes capitate, the flowers concealed by the large silvery 

 stipules ; sepals lanceolate, hairy, slender-pointed ; petals minute, tooth-like. — 

 Mountains of Georgia and North Carolina. July- Sept. 1J. — Stems 6'-l0' 

 high. Stipules nearly as long as the leaves. 



3. P. hemiarioides, Nutt. Rough-pubescent ; stems prostrate, diffusely- 

 branched; leaves oval or oblong, mucronatc ; flowers axillary, solitary, sessile ; 

 sepals subulate, with a short and spreading point. (Anychia hemiarioides, 

 Michx.) — Dry sand ridges in the middle districts, Georgia to North Carolina. 

 July - Oct. ® — Stems 4' - G' long. Leaves 3" - 4" long. 



4. P. Baldwinii. Finely pubescent; stems prostrate, diffusely-branched; 

 branches alternate, one-sided, filiform ; leaves lanceolate or ovate-lanceolate, 

 acute, narrowed into a petiole; cymes diffuse, naked; sepals oblong, 3-rihbcd, 

 ciliate, short-pointed ; petals bristle-like, as long as the stamens ; utricle equal- 

 ling or rather longer than the sepals; style 2-cleft to the middle. (Anychia 

 Baldwinii, Torr.fr Gray.) — Dry sandy soil, Florida and Georgia. July -Oct. 

 (X and @ — Stems l£°- 3° long. Upper leaves sometimes alternate. 



2. ANYCHIA, Michx. 



Sepals 5, distinct, slightly mucronatc at the apex. Petals none. Stamens 

 2-3, inserted on the base of the calyx. Style very short. Stigmas spreading. 

 Utricle exserted. Seed erect. Radicle inferior. — An erect slender annual, 

 with forking setaceous spreading branches. Leaves thin, oblong, obtuse, nar- 

 rowed at the base. Flowers minute, solitary or clustered in the forks of the 

 branches, greenish. 



1. A. dichotoma, Michx. (Qucria Canadensis, /..) — Barren hills. South 



Carolina and northward. .Inly and August. — Stem 4' - 10' high. 



3. SIPHONYCHIA, Torn & Gray. 



Sepals 5, united t'> the middle, concave and petal like al><>Yc, obtuse or mu- 

 cronatc Petals 5, bristle-like, insetted with the . r > .stamens on the throat of the 



calyx. Style slender, 2-cleft. Utricle incloded, Seed resupinate. Radicle 

 superior, — Erect or diffusely prostrate herbs. Cymes dense-flowered. Flowers 



white. 



