402 



FABACEAE. 



VOL. II. 



20. Meibomia marylandica (L.) Kuntze. 

 Smooth Small-leaved Tick-trefoil. Fig. 2595. 



Hcdysarum marylandicum L. Sp. PI. 748. 1753. 

 Desmodium marylandicum Boott. ; Darl. Fl. Cestr. 412. 1837. 

 Meibomia marylandica Kuntze, Rev. Gen. PI. 198. 1891. 



Erect or ascending, glabrous, or rarely with a few 

 scattered hairs, slender, 2-3 high. Stipules subulate, 

 deciduous or persistent ; petioles 3"-6" long ; leaves 

 crowded ; leaflets 3"-ia" long, ovate or nearly orbicu- 

 lar, obtuse, glabrous on both sides, the lateral often 

 subcordate ; upper lobe of the calyx emarginate or mi- 

 nutely 2-toothed ; racemes oanicled ; corolla purplish, 

 very small, i"-2" long; loment sessile in the calyx or 

 nearly so, 1-3 -jointed, the joints small, obliquely oval 

 or semi-orbicular. 



In dry soil and in copses, Ontario to Massachusetts, 

 Florida, Minnesota, Missouri, Arkansas and Texas. July- 

 Sept. 



21. Meibomia obtusa (Muhl.) Vail. Hairy Small- 

 leaved Tick-trefoil. Fig. 2596. 



Hcdysarum obttisum Muhl. ; Willd. Sp. PI. 3: 1190. 1803. 

 Hedysarum ciliare Muhl.; Willd. Sp. PI. 3: 1196. 1803. 

 Desmodium ciliare DC. Prodr. 2: 329. 1825. 

 Meibomia obiusa Vail, Bull. Torr. Club 19: 115. 1892. 



Erect or ascending, bushy, i-3 high, pubescent. Stip- 

 ules subulate, deciduous ; leaves crowded ; petioles ciliate, 

 shorter than the leaflets; leaflets broadly ovate or oval, 

 obtuse, somewhat coriaceous, more or less pubescent on 

 both sides, ciliate, 6"-i2" long; racemes terminal, com- 

 pound or simple, uncinate-pubescent ; upper lobe of the 

 calyx entire or minutely 2-toothed, the lower ones acute; 

 flowers i "-2" long; loment 2-3-jointed, the joints obliquely 

 oval ; stipe not exceeding the calyx-lobes. 



Dry soil, Ontario to Massachusetts and Florida, west to Mich- 

 igan, Missouri, Arkansas and Texas. Cuba. July-Oct. 



39. LESPEDEZA Michx. Fl. Bor. Am. 2: 70. 1803. 



Herbs, often somewhat woody, with pinnately 3-foliolate leaves, small stipules, and small 

 purple or whitish flowers in axillary clusters, heads or panicles. Flowers often of 2 kinds 

 intermixed, the one petaliferous and mainly sterile, the other minute, apetalous, abundantly 

 fertile. Calyx-lobes nearly equal, those of petaliferous flowers often longer than those of 

 apetalous ones. Standard .in the petaliferous flowers obovate or oblong, clawed ; wings 

 oblong; keel incurved. Stamens more or less diadelphous (9 and i) ; anthers all alike. 

 Ovary sessile or stipitate, i-ovuled. Pods ovate, oblong, oval or suborbicular, flat, indehis- 

 cent, reticulated, composed of a single joint, or with a second stalk-like joint at the base, 

 those of petaliferous flowers often sharper-pointed than those of apetalous ones. [Named 

 for Lespedez, governor of Florida, patron of Michaux.j 



A genus of about 40 spec : es, natives of eastern North America, Asia and Australia. Type 

 species : Lespedesa sessiiiflora Michx. The genus is known as bush-clover. 

 Perennial native species ; stipules subulate ; calyx-lobes narrow. 



Corolla purple or purplish ; plants bearing both petaliferous and apetalous flowers. 

 Stems prostrate or trailing. 



Glabrous or somewhat appressed-pubescent. i. L.rcpens. 



Downy-pubescent or tomentose. 2. L. procumbcns* 



Stems erect or ascending. 



Peduncles manifest, mostly longer than the leaves. 



Bushy-branched; petaliferous flowers paniculate. 3. L.violacea. 



Stems simple or little-branched ; flowers racemose or subspfcate. 



Calyx of petaliferous flowers two-thirds as long as the pod or more. 



4. L. Manniana. 

 Calyx of petaliferous Mowers one-half as long as the pod or less. 



Stem tomentose ; leaves tomentose beneath. 5. L. Brittonii. 



Stem and leaves glabrate or appressed-pubescent. 



Leaflets oval to suborbicular. 6. L. Nuttallii. 



Leaflets oblong. 7. L. acuticarpa. 



