VOL. II.] 



PEA FAMILY. 



319 



16. Meibomia viridiflora (I,.) Kuntze. 

 Velvet-leaved Tick-trefoil. (Fig. 2185.) 



Hedysarum viridiflorum L. Sp. PI. 748. 1753. 

 Desmodium viridiflorum Beck, Bot. 84. 1833. 

 Meibomia viridiflora Kuntze, Rev. Gen. PI. 197. 



1891. 



Erect, rather stout, downy-pubescent, 2-4 

 high. Stipules lanceolate, mainly deciduous; pet- 

 oles YZ'-^YZ' long; leaflets broadly ovate, rough 

 above, densely velvety-pubescent beneath, \ f -$%' 

 long, the terminal one somewhat rhomboid; ra- 

 cemes compound, elongated, terminal, uncinate- 

 pubescent; bracts deciduous; upper calyx-lobe 

 minutely 2-toothed, the 3 lower ones attenuate; 

 flowers purple, 3 // -4 // long; loment 2-4-jointed, 

 the joints semi-rhomboid, uncinate, about 2" 

 long; stipe about equalling the lower lobes of the 

 calyx. 



Dry woods, eastern Pennsylvania and southern * 

 New York to Florida, west to Michigan, Missouri and j 

 Texas. Aug. -Oct. 





17. Meibomia Dillenii (Darl.) Kuntze. 

 Dillen's Tick-trefoil. (Fig. 2186. ) 



Hedysarum Marylandicum Willd. Sp. PI. 3: 1189. 



1803. Not L. 1753. 



Desmodium Dillenii Darl. Fl. Cest. 414. 1837. 

 Meibomia Dillenii Kuntze, Rev. Gen. PI. 195. 1891. 



Erect, 2~3 high, pubescent with scattered 

 hairs, or nearly glabrous. Stipules subulate, 

 mainly deciduous; petioles i / -2 / long; leaflets 

 usually thin, oval or oblong-ovate, obtuse, i%'- 

 4' long, %'-!%' wide, sparingly pubescent or 

 glabrous above, softly pubescent or villous be- 

 neath; racemes terminal, compound, loose; bracts 

 small, deciduous; upper calyx-lobe entire or 

 minutely 2-toothed, the lower ones slender; flow- 

 ers 3 // -4 // long; loment 2-4-jointed, the joints 

 nearly triangular, about $" long, somewhat con- 

 vex on the back, uncinate-pubescent; stipe 

 shorter than the calyx-lobes. 



Woods, Maine and Ontario to Minnesota, Virginia, 

 Kentucky, Missouri andTexas. Variable. June-Sept. 



18. Meibomia Illinoensis (A. Gray) 

 Kuntze. Illinois Tick-trefoil. (Fig. 2 187.) 



Desmodium Illinoense A. Gray, Proc. Am. Acad. 



8: 289. 1870. 

 Meibomia Illinoensis Kuntze, Rev. Gen. PI. 198. 



1891. 



Erect, stout, 2-4 high, uncinate-pubescent. 

 Stipules ovate, acute, cordate, ciliate, pubescent, 

 persistent; petioles i / -2 / long; leaflets lanceo- 

 late or ovate-lanceolate, obtusish, coriaceous, 

 scabrous above, strongly reticulate veined and 

 cinereous beneath, 2 / ~3^ / long, the terminal 

 one broader and longer than the lateral; ra- 

 cemes terminal, simple or compound; bracts 

 deciduous, ovate-lanceolate; calyx-lobes acute, 

 the upper one minutely 2-toothed; flowers 3"- 

 4" long; loments y^'-\' long, often in pairs, 3- 

 6-jointed, the joints oval or orbicular, densely 

 uncinate-pubescent; stipe not longer than the 

 short upper lobe of the calyx. 



Prairies, Nebraska and Illinois to Iowa and 

 Kansas. June-Sept. 



