POLYGALACE^E. (MILKWORT FAMILY.) 83 



3. P. Baldwin!!, Nutt. Stem angled, simple ; leaves alternate, lanceolate, 

 acute, the lowest spatulate ; corymbs compound; spikes dense; wings ovate- 

 lanceolate, tapering into a long and slender point ; seeds very small, globose, 

 hairy; caruncle minute. Low pine barrens, Georgia, Florida, and westward. 

 July and August. Stem 1- l high. Leaves '- 1' long. Flowers white, 

 fragrant. 



* * Spikes solitary : leaves alternate. 

 *- Flowers yellow : biennials. 



4. P. lutea, L. (YELLOW BACHELOR'S-BUTTON.) Stem simple or with 

 spreading branches ; leaves lanceolate, acute, the lowest clustered, spatulate- 

 obovate, obtuse ; spikes dense, globose or oblong ; wings elliptical, abruptly 

 pointed ; lobes of the caruncle nearly as long as the obovate sparse-hairy seed. 

 Low pine barrens, Florida to Mississippi, and northward. June - August. 

 Stem 6'- 12' high. Flowers orange-yellow. 



5. P. nana, DC. Low ; stems divided at the base into several short pe- 

 duncle-like branches ; leaves chiefly radical, clustered, spatulate or linear, obtuse ; 

 spikes thick, at length cylindrical, the earliest ones sessile ; wings ovate-lance- 

 olate, acuminate ; lobes of the caruncle half as long as the obovate hairy seed. 

 (P. viridescens, Nutt.) Low sandy pine barrens, Florida to South Carolina, 

 and westward, flowering throughout the year. Stems 2'-4 ; high. Spikes 

 1 ' - 2' long. Flowers yellow. 



- -i- Flowers purple or rose-color : annuals : stems branching. 



6. P. sanguinea, L. Leaves oblong-linear, acute ; spikes ovate or round- 

 ish, obtuse ; flowers imbricated ; wings broadly ovate, obtuse, sessile ; lobes of 

 the caruncle rather shorter than the pear-shaped sparse-hairy seed. (P. pur- 

 purea, Nutt,) Low grounds, North Carolina and northward. July -Sept. 

 Stems 1 high. Flowers reddish-purple. Bracts persistent. 



7. P. fastigiata, Nutt. Stems slender, at first simple; leaves narrow- 

 linear, acute ; spikes globose, obtuse ; wings oblong-obovate tapering into a dis- 

 tinct claw at the base ; caruncle as long as the stalk of the sparse-hairy pear- 

 shaped seed. (P. sanguinea, Torr. $- Gray.) Low pine barrens, Florida to 

 North Carolina, and westward. July -Oct. Stems 10' -15' high. Leaves 

 erect. Flowers small, bright rose-color. Bracts deciduous. 



8. P. Nuttallii, Carey. Leaves short, linear, obtuse ; spikes oblong, 

 acute, dense ; wings short, elliptical, slightly clawed ; lobes of the caruncle col- 

 lateral, one third as long as the obovate very haiiy seed. (P. sanguinea, Nutt. 

 P. ambigua, Torr. $* Gray.) Dry sandy soil, North Carolina and northward. 

 August. Stem 4' -8' high, the branches fastigiate. Spikes and greenish and 

 purple flowers smaller than in No. 7. Bracts persistent. 



9. P. Chapman!!, Torr. & Gray. Stems slender, at length sparingly 

 branched ; leaves scattered, narrow-linear, acute ; spikes long, lanceolate, acute, 

 loose-flowered ; wings obovate, short-clawed ; lobes of the caruncle spreading, as 

 long as the stalked base of the pear-shaped very hairy seed. Low pine barrens 

 near the coast, West Florida and westward. June -August. Stems 1-1^ 

 high. Spikes 1'- 2' long. Flowers bright-purple. Bracts persistent. 



