VOL. II. ] PINK FAMILY. 39 



2. Paronychia sessiliflora Nutt. L,ow Whitlow- wort. (Fig. 1519.) 



Paronychia sessiliflora Nutt. Gen. i: 160. 1818. 



Densely tufted from stout thick roots, low, 

 the interuodes very short and hidden by the im- 

 bricated leaves and stipules. Leaves linear-subu- 

 late, glabrous or puberulent, the lowest erect and 

 obtuse, the uppermost recurved-spreading, mu- 

 cronate or bristle-pointed; stipules 2-cleft, usually 

 shorter than the leaves; bracts entire, mostly 

 shorter than the flowers; flowers sessile, solitary 

 or several together; calyx. i"-!^" long, its seg- 

 ments hooded at the apex, tipped with divergent 

 awns of nearly their own length; staminodia 

 about as long as the filaments. 



In dry soil, Northwest Territory to Nebraska and 

 Wyoming. Aug.-Sept. 



3. Paronychia Jamesii T. & G. James' 

 Whitlow-wort. (Fig. 1520.) 



Paronychia Jamesii T. & G. Fl. N. A. i: 170. 1838. 



Scabrous-pubescent, stems 3 / -8 / high, much 

 branched from the base. Leaves linear-subulate, 

 the lowest obtuse, the uppermost mucronate or 

 bristle-pointed; stipules entire; flowers in small 

 cymes; bracts shorter than the calyx; calyx \ ff - 

 i Yi." long, the segments hooded at the apex, tipped 

 with divergent awns of about one-fourth their 

 length; staminodia about as long as the filaments. 



In dry soil, Nebraska and Colorado to Texas. 

 July-Oct. 



Paronychia Jamesii depressa Nutt. ; T. & G. Fl. N. A. 



i: 171. 1838. 



Lower, rarely over 3' high, densely tufted; inter- 

 nodes very short; leaves imbricated. Nebraska to 

 Texas. 



4. Paronychia dichotoma (L,. ) Nutt. 



Forking Whitlow- wort. Nail wort. 



(Fig. 1521.) 



Achyranthes dichotoma L- Mant. 51. 1767. 

 Paronychia dichotoma Nutt. Gen. i: 159. 1818. 



Much branched from the thick woody base, gla- 

 brous or puberulent, 4 / -i4 / tall. Leaves subulate, 

 all acute, mucronate or bristle-tipped; stipules en- 

 tire, often $"-6" long, tapering into a slender awn; 

 calyx i // -2 // long, the awns of its segments diver- 

 gent, short; staminodia of minute bristles hardly 

 one-fourth as long as the filaments; styles nearly 

 as long as the perianth-segments, usually cleft for 

 about one-fourth their length. 



In dry soil, Maryland to North Carolina, west to 

 Arkansas and Texas. July-Oct. 



