POLYGALACE^. 613 



PACHYSTIMA, Raf. 



Calyx 4-lobed. Petals and stamens 4, inserted on tlie edge of the disk 

 that fills the tliroat of the calyx. Style very short ; stigma obscurely 2- 

 lobed. Capsule 2-celled, loculicidally 2-valved, 2-4-seeded, the seed arillate. 



— Low shrubs, with opposite persistent leaves, and minute axillary flowers. 

 p. Canbyi, Gray. Leaves oblong-linear, denticulate near the tip ; 



flowers single, or clustered on the common peduncle; petals oblong-ovate. 



— Rocky cliffs on the mountains of North Carolina and Vh'ginia ( Curiiss). — 

 Shrub 1° or more high. 



Tribe HIPPOCRATES. Cali/x bdejl. Petals 5. Stamens 3, inserted 

 ■wHbin the large disk. Ovary 3-cetled ; styles united below. Ovules ascending. 

 Albumen none. 



HIPPOCRATEA, L. 



Calyx small, 5-parted. Petals spreading, valvate or imbricate. Filaments 

 recurved : anthers 2- or 4-celled. Disk expanded. Ovary free or confluent. 

 Style short, subulate, 3 cleft. Ovules 2-6 in each cell. Carpels 3, united 

 at the base, 2-valved, or indehiscent, few-seeded. Seeds mostly winged. — 

 Climbing shrubs. Cymes or panicles dichotomous. 



H. ovata, Lam. Leaves elliptical-oblong, serrulate ; panicles rusty- 

 pubescent, mostly longer than the leaves ; petals oblong ; carpels oval or 

 roundish. — Borders of tlie Everglades ( Curtiss). 



Okdeii SAPINDACE^. 



SAPINDUS, L. 



S. Saponaria, L. Petioles broadly winged ; leaflets 6 or 8, nearly oppo- 

 site, rather rigid, oblong, obtuse, mostly equal sided, pubescent beneath ; 

 panicle tomentose, canescent ; fruit globose. — Coast of South Florida. — 

 A small tree. 



Order POLYGALACE^. 



POLYGALA, L. 



P. Rugelii, Shuttlw. Stem mostly brandling ; leaves alternate, lanceo- 

 late, acute, sessile, the lowest ones clustered and narrowed into a petiole ; 

 spikes globose ; wings oblong-obovate, cuspidate; seeds and caruncle as in 

 P. lutea. — Flat pine barrens, East Florida. May - August. — Stem P - 2° 

 high. Flowers bright yellow, drying brown. 



P. Reynoldsae, n. sp. Stems stout, at length branching above (1° or 

 more liigh) ; leaves lanceolate, mucronate, punctate (1' long) ; the lowest 

 ones clustered, spatulate ; flowers large, yellow, scattered in a long (6' or 

 more) stout terminal raceme ; wings elliptical, mucronate, 4 times as long as 

 the capsule ; keel crested ; pedicels as long as the subulate bracts ; caruncle 



