PAPILIONACEAE. 



[VOL. II. 



13. Meibomia paniculata (I,.) Kuntze. Panicled Tick-trefoil. (Fig. 2182.) 



Hedysarum paniculatum L. Sp. PI. 749. J?53- 

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

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

 Erect, slender, nearly glabrous, 2-4 high. Stipules 

 small, subulate, mainly deciduous; leaves petioled; 

 leaflets oblong-lanceolate or linear-lanceolate, obtuse, 

 i / -2 / long; racemes terminal, compound; bracts decid- 

 uous; upper calyx-lobe deeply 2-toothed, the 3 

 lower ones attenuate, with the middle one elongated; 

 flowers purple, 3 // -4 // long; loment \ f long or more, 

 4-6-jointed, the joints obliquely triangular or rhomboid, 

 minutely uncinate-pubescent; stipe nearly equalling 

 the lower lobes of the calyx. 



In dry soil, Ontario to Minnesota, south to Massachusetts, 

 Florida and Texas. July-Sept. 

 Meibomia paniculata Chapmani Britton, Mem. Torr. Club, 



5: 204. 1894. 

 Desmodium paniculatnm var. angustifolium T. & G. Fl. 



N. A. i: 364. 1838. 



Meibomia angustifolia Kearney, Bull. Torr. Club, 21: 481. 

 ^-n ,, iTff/^-j^-vz^ I 894- Not Kuntze, 1891. 



I ^^^ J ie2^ More slender, leaflets linear. Intermediate forms also 



'. /Zs^ Lr"^ occur. In dry, sandy soil, Virginia to Florida, west to 



Kentucky and Texas. 

 Meibomia paniculata pubens (T. & G.) Vail, Bull. Torr. Club, 19: 112. 1892. 

 Desmodium paniculatum var. pubens T. & G. Fl. N. A. i: 364. 1838. 

 Desmodium pubens Young, Fl. Texas, 233. 1873. 



Stems puberulent; leaflets coriaceous when old, oblong- 

 lanceolate, sometimes scabrous above, pubescent beneath; 

 loment-joints strongly angled on the back. In dry sandy 

 soil, Virginia to Florida, the Indian Territory, and Texas. 



14. Meibomia laevigata (Nutt.) Kuntze. 

 Smooth Tick-trefoil. (Fig. 2183. ) 



Hedysarum laevigatum Nutt. Gen. 2: 109. 1818. 

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

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



Erect or ascending, 2-4 high, glabrous. Stipules 

 subulate, deciduous; petioles i / -2 / long, leaflets ovate, 

 acutish, somewhat glaucous beneath, the terminal one 

 larger than the lateral and more or less rhomboid; ra- 

 cemes terminal, compound, slightly pubescent; bracts 

 deciduous; calyx scabrous, the upper lobe entire or mi- 

 nutely 2-toothed, the 3 lower attenuate; flowers pink, 5"- 

 6" long; loment 3~4-jointed, the joints triangular, angled 

 on the back, uncinate-pubescent; stipe 2"-$" long. 



In dry woods, southern New York to Florida, Missouri 

 and Texas. Stem terete, glaucous. Aug. -Sept. 



15. Meibomia rhombifdlia (Ell.) Vail. 

 Rhomb-leaved Tick-trefoil. (Fig. 2184.) 



Hedysarum rhombifolium Ell. Bot. S. C. & Ga. 2. 216. 



1824. 



Desmodium rhombifolium DC. Prodr. 2: 330. 1825. 

 Desmodium Floridanum Chapm. Fl. 102. 1860. 

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

 .)/. thombifolia Vail, Bull. Torr. Club, 19: 113. 1892. 



Erect or ascending, 2-3 high or more, uncinate- 

 pubescent, simple or branched. Stipules subulate, 

 taper- pointed; leaves ovate, often mucronulate, cori- 

 aceous, scabrous above, villous and reticulated be- 

 neath, 2 / -3> / long, the terminal rhomboid, the lat- 

 eral ones often wanting; racemes terminal, simple or 

 panicled, elongated, usually leafless; bracts minute, 

 deciduous; calyx-lobes acute, the upper one 2- 

 toothed; loment 2-5-jointed, the joints obliquely 

 semi-rhomboid, rounded on the back, uncinate- 

 pubescent; stipe often as long as the lowest joint. 



In sandy soil and pine lands, Virginia and Florida, 

 west to Alabama and Louisiana. May-Sept. 



