GENUS 38. 



PEA FAMILY. 



5. Meibomia Michauxii. Vail. Pros- 

 trate Tick-trefoil. Fig. 2580. 



Hedysarum rotundifolium Michx. Fl. Bor. Am. 2 : 



72. 1803. Not Vahl. 1791. 

 Desmodium rotundifolium DC. Prodr. 2 : 330. 



1825. 

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



1891. 

 M. Michauxii Vail, Bull. Torr. Club 23 : 140. 1896. 



Prostrate, 2-6 long, softly pubescent, or 

 densely villous. Stipules ovate or triangular- 

 ovate, persistent, acuminate, somewhat cor- 

 date, striate, ciliate ; leaves petioled ; leaflets 

 nearly orbicular, pubescent, i'-ii' long; pani- 

 cles terminal and axillary, loose; bracts decid- 

 uous; flowers purple, 3" -5" long; calyx-lobes 

 ciliate; loment i' long or more, 3~5-jointed; 

 joints obliquely rhomboid below, slightly con- 

 vex above, uncinate-pubescent ; stipe equalling 

 or longer than the calyx-lobes. 



Dry woods, Maine (?), Ontario to Minnesota, 

 Massachusetts, Florida, Missouri and Louisiana. 

 July-Sept. Round-leaved or trailing tick-trefoil. 

 Hive-vine. Dollar-leaf. 



6. Meibomia ochroleuca (M. A. Curtis) 



Kuntze. Cream-flowered Tick-trefoil. 



Fig. 2581. 



Desmodium ochroleucum M. A. Curtis ; Canby, Proc. 



Acad. Phila. 1864: 17. 1864. 

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



Procumbent or decumbent, hirsute, i-3 long. 

 Stipules ovate, persistent, cordate, striate; petioles 

 i'-ii' long; leaflets yellowish green, rugose or nearly 

 smooth above, reticulate-veined and somewhat sca- 

 brous beneath, 8"-2' long, the terminal one rhomboid, 

 the lateral obliquely ovate, smaller, or sometimes 

 wanting ; racemes terminal and axillary, simple ; 

 bracts deciduous ; flowers whitish ; upper calyx-lobe 

 minutely 2-toothed, the others attenuate ; loment 2-3- 

 jointed, the joints only slightly more convex below 

 than above, twisted, oval, pale green, glabrous except 

 the uncinate-pubescent sutures ; stipe about as long 

 as the calyx-lobes. 



In woodlands, New Jersey to Georgia, Tennessee and 

 Missouri. Aug.-Sept. 



7. Meibomia glabella (Michx.) Kuntze. 

 Trailing Tick-trefoil. Fig. 2582. 



Hedysarum glabellum Michx. Fl. Bor. Am. 2: 73. 1803. 

 Desmodium humifusum Beck, Bot. 86. 1833. 

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



Procumbent, glabrous or nearly so, stem terete 

 below, striate above, sometimes 8 long. Stipules 

 lanceolate or ovate-lanceolate ; leaves petioled ; leaf- 

 lets ovate or oval, obtuse, glabrous or sparingly pu- 

 bescent above, pale beneath, i'-2i' long, the terminal 

 one slightly rhomboid ; racemes terminal and axillary, 

 panicled ; bracts deciduous ; flowers purple ; calyx- 

 lobes acute, the upper one 2-toothed, the others atten- 

 uate; loment 2-5-jointed, the joints obliquely semi- 

 rhomboidal, less convex above than below, finely 

 roughened; stipe about 2" long, equalling or rather 

 longer than the calyx-lobes. 



In dry sandy woods, eastern Massachusetts to New 

 York, western New Jersey, and eastern Pennsylvania to 

 South Carolina. Aug.-Sept. 



