150 



OEDER XLHI. LEGUMINOS.E PEA-FAMILY. 



hispid joints. An upright branching species in damp woods and along rivers, 

 growing 2 4 ft. high. July Aug. 



5. D. Dillenii. Scabrous Trefoil. 



Stem erect, branching, hairy ; leaflets oblong, villous and pale beneath ; 

 stipules subulate ; panicle large, naked, with scabrous but not canescent bran- 

 ches ; flowers small, purple, becoming greenish ; legumes with 24 rhom- 

 boidal, reticulated joints. Moist soils, growing about 3 ft. high. Distinguished 

 from the last by its stipules and its panicles not being canescent, and its different 

 legumes. Aug. 



6. D. cuspidatum. Large Trefoil. 



Stem erect, smooth, with few branches ; leaflets ovate, or ovate-lanceolate, 

 acuminate, smooth ; stipules lanceolate, with subulate points ; flowers large, 

 purple, in a terminal few-branched panicle; bracts conspicuous, ovate, cuspi- 

 date ; legumes about 6-jointed ; joints oblong-triangular. The largest species 

 described, growing 4-6 ft high. In woods. Aug. 



7. D. Marilandicum. 



Smooth Trefoil. 



Stem erect, slender, nearly or quite smooth ; leaflets small, broad-ovate, 

 often somewhat cordate at base, thin, mostly smooth, very obtuse ; petioles 

 short, smooth ; stipules lanceolate-subulate, caducous ; panicle long, terminal, 

 with numerous, rather rough branches; flowers violet-purple, small; legumes 

 with 13 semi-orbicular joints. Common In woodlands ; 1 2 ft high. Aug. 



8. D. ciliare. 



Hairy Trefoil. 



Stem erect, hairy, mostly simple ; Ifraves crowded on short, hairy petioles ; 

 leaflets roundish-ovate, obtuse, sub-coriaceous, more or less pubescent, some- 

 what ciliate ; stipules linear-subulate, caducous ; flowers violet-purple, small, 

 in long, terminal panicles, with the lower branches very long ; legumes with 

 2 3 hispid, semi-orbicular joints. A variable species, very much resembling 

 the last, and often only to be distinguished from it by the short, hairy petioles. 

 Dry fields and woods. Aug. 



9. D. rigidum. 



Stiff Trefoil. 



Stem erect, branched, rough -pubescent ; leaflets oblong-ovate, obtuse, 

 ciliate, rough above, pubescent beneath ; petioles hairy, shorter than the lateral 

 leaflets ; stipules ovate-lanceolate, ciliate, caducous ; panicle composed of long, 

 nearly erect racemes; flowers small, purple, quickly becoming greenish; 

 legumes of 23 half-obovate, hispid joints. Extremely variable; distinguished 

 from the last by its stipules, and from D. canescens and D. Dellenil by its 

 different legumes. Woods. Aug. 



10. D. paniculatum. 



Clustered Trefoil. 



Stem slender, erect, nearly or quite smooth ; leaves on petioles shorter than 

 the lateral leaflets ; leaflets oblong-lanceolate, or linear-lanceolate, rather ob- 

 tuse, thin; stipules subulate, deciduous; racemes paniculate; bracts lanceo- 

 late, hairy ; flowers purple, on long, slender pedicels ; legume straight, of 3 5 

 rhomboidal, hispid joints. A handsome species, 1 3 ft. high. In woods, com- 

 mon. July Aug. 



11. D. rotundifolium. 



Creeping Trefoil. 



Stem prostrate, hairy ; petioles hairy ; leaflets orbicular, hairy, ciliate ; ter- 

 ninal one largest and somewhat rhomboidal; stipules large, broadly ovate, acu- 

 minate, reflexed, persistent ; racemes axillary and terminal, with rather long 

 peduncles ; flowers light purple ; legumes with 85 rhomboidal hispid joints. 

 A common species in rocky woods, 24 ft. long. Aug. 



14. LESPEDEZA. 



Calyx 5-cleft, with 2 bracteoles at base, and nearly equal to 

 its segments. Keel-petals very obtuse, on slender claws. Legume 

 lenticular, mostly flat, small, reticulated, unarmed, indehiscent, 1- 

 seeded. Leaves trifoliate. Per. 



* Flowers all perfect. 



1. L. capita ta. Headed Bush Clover. 



Stem erect, mostly simple, villous ; leaves crowded, on short petioles ; leaf- 

 lots elliptical, rather coriaceous, silky beneath ; flowers in axillary racemes, on 

 pubescent peduncles shorter than the leaves ; corolla white, scarcely longer than 

 the very hairy calyx. A common, somewhat shrubby plant, 23 ft high. Dry 

 fields and hills. Aug. Sep. 



2. L. hirta. Hairy Bush Clover. 



Stem erect, branching, villous and pubescent; leaves on very short, hairy 

 petiolea ; leaflets mostly roundish-oval, emarginate, hairy, especially beneath ; 

 flowers in axillary racemes, on pubescent peduncles, which are at length much 



longer than the leaves, crowded ; corollas reddish-white, about as long as the 

 calyx. Dry soils, 2 3 ft high. Aug. Sep. 



* * Flowers partly perfect, partly apetaloua; the latter usually tearing 

 thefruit. 



3. L. procumbens. Running Bush Clover. 



Stems prostrate, pubescent, with assurgent brandies ; leaves on short, pu- 

 bescent petioles ; leaflets oval, or elliptical, mostly retuse, pubescent beneath ; 

 perfect flowers, light purple, in short, racemose heads, on axillary, very long, 

 slender, pubescent peduncles ; lower ones apetalous, on short peduncles, or 

 subsessile ; legumes, sub-orbicular. A hairy, prostrate plant, with stems 2 8 ft 

 long, several from the same root. Not uncommon in dry grounds and woods. 

 August. 



4. L. violacea. Bush Clover. 



Stem erect or diffuse, branching, pubescent, leaves on short petioles ; leaflets 

 varying from narrow-oval to linear, hairy beneath, equalling, or longer than the 

 petiole ; flowers in axillary, few-flowered racemes, sometimes on longer, slender 

 ones, violet-purple ; apetalous flowers glomerate and subsessile in the axils of the 

 leaves ; legumes much longer than the calyx. An extremely variable, handsome, 

 bushy species. In woods. Aug. Sep. 



The following varieties are by some Botanists considered species. Var. 

 sessiliflora has the flowers aggregated on peduncles shorter than the leaves ; 

 those at base chiefly apetalous and fertile ; leaflets oblong, or elliptical. 



Var. angustifolia is slender, smooth, with the flowers aggregated toward the 

 extremities of the branches, the leaflets narrowly oblong, or linear. 



15. CEOTOLABIA. 



Calyx 5-cleft, somewhat bi-labiate. Standard large, cordate. 

 Keel falcate, acuminate. Stamens 10, mouadelphous. Sheath of 

 the filaments cleft on the upper side. Legumes turgid, with ven- 

 tricose valves. 



1. C. sagittalis. Battle-pod. 



Erect, hairy, branching ; leaves lanceolate, or oval, entire, rounded at base, 

 very shortly petiolod ; stipules united and decurrent on the stem, so as to ap- 

 pear reversely sagittate ; peduncles short, about 8-flowered ; flowers yellow ; 

 corolla shorter than the sepals; legume inflated; hollow, with a few shining 

 seeds, which at length become loose and rattle ; hence its common name. An 

 annual, hairy plant 5' 12' high, in sandy soils. July. 



16. LUPlNUS. 



Calyx deeply bi-labiate ; upper lip 2-cleft ; lower entire or 3- 

 toothed. Banner with the sides reflexed. Wings united toward 

 the summit. Keel falcate, acuminate. Stamens monadelphous ; 

 the sheath entire. Anthers alternate, oblong and globose. 

 Legume coriaceous, oblong, compressed. Leaves palmately, 5 15 

 foliate. 



1. L. perennis. Wild Lupine. 



Stem herbaceous, slightly pubescent, erect; leaflets 79, oblanceolate, mu- 

 cronate, soft and downy ; petioles long ; flowers bright blue, alternate, in termi- 

 nal racemes, varying to white, pedicellate ; upper lip of the calyx emarginate, 

 lower entire. A beautiful plant, abundant in dry, sandy woods. Stem about a 

 foot high. Per. 



2. L. polyphyllus. 



Garden Lupine. 



Tall ; stem smoothish, generally striate ; leaflets 11 15, nearly smooth 

 above, silky -pubescent beneath ; flowers alternate, in long racemes ; bracts 

 lanceolate, deciduous, shorter than the pedicels ; calyx-lips both nearly entire, 

 A tall, splendid plant, 85 ft high, from Oregon, but common in gardens, with 

 while, purple, or yellow flowers. 



17. BAPTfSIA. 



Calyx campanulate, 4 5-cleft at summit, persistent. Petals 

 about the same length. Banner orbicular, emarginate. Stamens 

 distinct, deciduous. Legume inflated, stipitate mostly few- 

 seeded by abortion. Per. 



1. B. tinctoria. Indigo Weed. 



Stem erect, smooth, branching ; leaves palmately trifoliate, on short petioles ; 

 leaflets roundish-obovate, tapering at base, very obtuse at apex. Stipules and 

 bracts setaceous, caducous; flowers rather small, yellow, in few-flowered 

 racemes, terminating the branches ; legume much inflated, at length sub- 

 globose, long-stipitate. A plant of a bluish-green aspect, 2 1 feet high, in dry 

 fields and woods. July Sep. 



