FABACEAE 641 



1. Lespedeza striata ( Thunb. ) H. & A. Annual, sparingly appressed-pubescent. 

 Stems erect, or usually much branched and diffusely spreading. 1—1 dm. long, slender: 

 leaflets 3, the blades oblong to oblong-obovate, 8-25 mm. long, obtuse, commonly ciliate, 

 much longer than the petioles : flowers solitary or 2-3 together and sessile or nearly 

 sessile in the axils : calyx-lobes about as broad as long : corolla wliite, pink or purple, 

 6-8 mm. long : pods oval or suborbicular, acute, surpassing the sepals. 



In dry soil and in fields, Virginia to Missouri, Florida and Texas. Naturalized from eastern Asia. 

 Summer. 



2. Lespedeza ripens L. ) Bart. Perennial, appressed-pubescent or glabrate. Stems 

 procumbent or trailing, 2-7 dm. long, usually branched : leaflets 3, the blades oval or ob- 

 ovate, 6-15 mm. long, obtuse or retuse at the apex, rounded or narrowed at the base, longer 

 than the petioles : inflorescence rather lax : peduncles of the petaliferous flower-clusters 

 surpassing the leaves : calyx-lobes less than i as long as the pod : corolla violet-purple, 

 4-6 mm. long : pods oval-orbicular, 3-4 mm. long, acute, finely pubescent, surpassing the 

 calyx-lobes. 



In dry and sandy soil, Long Island to Minnesota, Florida and Texas. Summer and fall. 



3. Lespedeza Texana Britton. Perennial, similar to L. j'epais in habit, but less 

 pubescent. Stems procumbent, 2-5 dm. long, glabrous below : leaflets 3, the blades 

 oblong or oblong-obovate, 1-2.5 cm. long, usually mucronulate, prominently veined, 

 glabrous above, sparingly pubescent beneath : inflorescence scant and very lax : calyx- 

 lobes barely ^ as long as the pod : corolla purplish : pods oval, 5-6 mm. long, minutely 

 pubescent. 



In dry soil, southern Texas. Spring and summer. 



4. Lespedeza procumbens ^lichx. Perennial, woolly or downy. Stems procumbent, 



trailing or rarely ascending, 3-9 dm. long, stouter than those of L. repeni< : leaflets 3, the blades 



oval or elliptic, sometimes obovate, 10-25 mm. long, obtuse or retuse at the apex, rounded 



at the base, much longer than the petioles : inflorescence lax : peduncles of the petaliferous 



flower-clusters surpassing the leaves : calyx-lobes less than n as long as the pods : corolla 



violet-purple to pinkish purple, 6-7 mm. long : pods oval-orbicular, 3 mm. long, acute, 



pubescent, surpassing the calyx-lobes. 



In dry soil or on roadsides, Massachusetts to the Indian Territory, Florida and Louisiana. Sum- 

 mer and fall. 



5. Lespedeza Manniana Mackenzie & Bush. Perennial, copiously pubescent, at 

 least above. Stems 4-9 dm. tall : leaflets 3, the blades oblong to somewhat cuneate, 1-4 

 cm. long, mucronulate, sparingly appressed-pul>escent above, densely so beneath : calyx- 

 lobes 5-7 mm. long, as long as the pods or longer : corolla purplish, 5-6 mm. long : pods 

 oval, mostly 5-6 mm. long, minutely pubescent. 



On barrens or in open woods, Missouri and Arkansas. Summer and fall. 



6. Lespedeza acuticirpa Mackenzie & Bush. Perennial, more or less pubescent. 

 Stems erect or nearly so, 2.5-5 dm. tall, with erect-ascending branches : leaflets 3, the 

 blades oblong-elliptic, 8-22 mm. long, glabrate above, appressed-pubescent beneath : flow- 

 ers 6 or fewer in a spike : calyx-lobes about 3 mm. long, h as long as the pod : corolla pur- 

 plish, 6-8 mm. long : pods elliptic or ovate-elliptic, sharply acute or somewhat acuminate, 

 slightly pubescent or nearly glabrous. 



In open woods or on barrens, Missouri and Arkansas. Summer and fall. 



7. Lespedeza Niittdllii Darl. Perennial, often copiously pubescent. Stems erect or 

 ascending, 5-10 dm. tall, simple or branching above : leaflets 3, the blades leathery, obo- 

 vate, oval or suborbicular, 8-20 mm. lonff, obtuse or notched at the apex, dark green and 

 glabrous or nearly so above, closely pubescent beneath, longer than the petioles : inflor- 

 escence cajjitate or densely spicate : peduncles usually surpassing the leaves : calyx-lobes 

 fully 5 as long as the pod : corolla 5-7 mm. long : pods oval to oblong, 5-6 mm. long, 

 acute or acuminate at both ends, densely pubescent. 



In dry soil, Xew England to Michigan, Kansas and Florida. Summer and fall. 



8. Lespedeza violacea ( L. ) Pers. Perennial, sparingly pubescent. Stems usually 

 branched at the base, the branches erect or ascending, or spreading, 3-9 dm. long, branched: 

 leaflets 3, the blades rather thin, elliptic, oblong-elliptic or oval, 10-20 mm. long, obtuse 

 or retuse at the apex, appressed-pubescent beneatli, as long as the petioles or longer : inflor- 

 escence close : peduncles relatively short : calyx-lobes about one-half as long as the pod : 

 corolla violet-purple, 6-10 mm. long : pods ovate or oval, 4-6 mm. long, acute, sparingly 

 and finely pubescent. 



In dry soil, Xew England to Minnesota, Kansas, Florida, Louisiana and Mexico. Summer and falL 



9. Lezpedeza prairea (Mackenzie & Bush) Britton. Perennial, glabrous below, 

 finely appressed-pubescent above. Stems ascending, several dm. long, copiously branched, 



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