118 LEGUMINOSJE. (PULSE FAMILY.) 



herbs, w!th chiefly trifoliolate leaves, and mostly small purplish or white 

 flowers in axillary racemes. Bracts alternate and deciduous. Leaflets 

 stipellate. 



* Leaves trifoliolate, with the leaflets stalked: stems twining or prostrate. 



1. G. spiciformis, Torr. & Gray. Stem twining, minutely pubescent ; 

 leaflets (!' long) thick and rigid, oblong-oval, obtuse or emarginate at both 

 ends, smooth above, pubescent beneath ; racemes spike-like, mostly longer 

 than the leaves ; legume coriaceous, compressed, falcate, thickened at the 

 sutures, sprinkled with short appressed hairs, 6 - 10-seeded. South Florida. 

 Aug. - Sept. 



2. G. pilosa, Ell. Pubescent or smoothish ; stem branching, twining, 

 leaflets varying from oval to linear-oblong, obtuse ; racemes (including the 

 slender peduncle) 2' -10' long, rarely reduced to a single sessile flower; 

 flowers mostly single, distant ; calyx smoothish ; legume straight, slightly 

 compressed, 10-seeded. (G. mollis, Ntitt.) Dry soil, common. July- 

 August. 



3. G. mollis, Michx. Villous and somewhat hoary ; stems mostly pros- 

 trate and simple ; leaflets oval or oblong, obtuse or emarginate at both ends, 

 or the upper ones acute; racemes 6' -10' long, the flowers, 2-3 together, 

 approximate near the summit of the stout peduncle ; calyx, like the straight 

 10 seeded compressed legume, very villous and hoary. (G. pilosa, Nutt.) 

 Drv sandv pine barrens. July -August. Stem 2 -3 long. 



4. G. filiformis, Benth. Stem long, twining, villous ; leaflets oval or 

 oblong, silky beneath, shorter than the many-flowered curved racemes; flowers 

 rather large, purple, the vexillum finely and obliquely striate with deeper 

 lines; legume silky, falcate, compressed, 10-seeded. Keys of South Flor- 

 ida. Nov. 



5. G. Floridana, Torr. & Gray. Hoary-pubescent; stems prostrate; 

 leaflets oval or oblong, rarely acute, reticulate ; racemes simple or branched, 

 often by pairs, many-flowered, rarely longer than the leaves ; flowers large, 

 approximate; legume flat, 10-seeded. Var MICROPHYLLA. Every war 

 smaller, the leaflets ('- f long) acute or emargiuate, the few flowers almost 

 sessile in axillary clusters. Dry sandy pine barrens, near the coast of 

 Florida. June - August. Stem 2 - 4 long. Leaflets 1 ' - 2' long. 



6. G. glabella, Michx. Stem prostrate, minutely pubescent ; leaflets 

 rather rigid, oblong, rarely acute, smooth and shining above, slightly hairy 

 beneath; racemes seldom as long as the leaves, 3-6-flowered; style elon- 

 gated; legume slightly falcate, at length smoothish, 4-6-seeded. Dry pine 

 barrens. July -August. Stems 2 -3 long. Leaflets 1' long. Flowers 

 large, reddish purple. 



* ^Leaves trifoliolate, with nearly sessile leaflets: stems erect. 



~ . G. brachypoda, Torr. & Gray. Stems slender, branching, and, as 

 well as the leaves and peduncles, smoothish ; leaves long-petioled ; leaflets 

 oblong, obtuse ; flowers few, somewhat clustered at the summit of the slender 

 peduncle ; calyx Coolly. Dry sandy pine barrens of Middle Florida. July- 



