54. Leguminosae 135 



25. Glycyrrhiza L. — Wild Licorice 



G. lepidota Pursii. Waste ground, occasional; adv. from west of 

 the Mississippi R. 



26. Coronilla L. — Crown-vetch 

 C. varia L. Roadsides and waste places, occasional : adv. from Eur. 

 June- Aug. 



27. Desmodium Desv. — Tick-clover 



{Meibomia Heist.) 

 1. Pods conspicuously long-stipitate, the stipe 2-3 times the length of 

 the calyx; stipules small, inconspicuous, setaceous, deciduous. 

 2. Panicle on a leafy stem; fruiting pedicels 5-8 mm long. 



3. Leaves scattered along the stem; corolla white, 5-6 mm long; 

 woods, chiefly in the s. part of the state, but extending 

 northward to St. Clair and Wabash counties. July-Sept. 



D. pauciflormn (Nutt.) DC. 



3. Leaves clustered at the base of the peduncle; corolla rose- 

 purple, 6-7 mm long; rich woods, common. June- Aug. [D. 

 acuminatum DC; D. grandiftorum. sensu Robins. & Fern., 



non DC; M. grandiflora sensu auth., non Ktze.] 



D. glutinosum (Muhl.) Wood 



2. Panicle on a long leafless peduncle; fruiting pedicels 1-2 cm 

 long; corolla rose-purple, 6-11 mm long; leaflets oval or 

 ovate, acute, glabrous or sparingly pubescent; woods, com- 

 mon. July-Aug D. nudiflurum (L.) DC. 



1. Pods short-stipitate or sessile. 



4. Stipules conspicuous, persistent, lanceolate to ovate, acuminate. 



5. Stems trailing", pilose; leaflets nearly orbicular, obtuse; stipules 



ovate-lanceolate, ciliate ; woods, s. 111., extending northward 



to Vermilion and St. Clair counties. Aug.-Sept. [M. 



michauxii Vail] D. rotundifolium DC. 



5. Stems erect or ascending. 



6. Joints of the pods rhombic, longer than broad. 



7. Leaflets obtusish, ovate or oval, somewhat rough- 

 pubescent on both surfaces, pale and reticulate be- 

 neath, about the same length as the petiole; stem 

 pubescent; open woods; absent from the northern 

 counties. July-Aug D. canescens (L.) DC. 



7. Leaflets acuminate, longer than the petiole. 



8. Leaves glabrous ; bracts of the inflorescence not 



ciliate; woods throughout 111. July-Se])t 



D. cuspidatum (Muhl.) Loud. 



8. Leaves pubescent beneath ; bracts of the inflorescence 



ciliate; open woods. July-Aug 



D. longifolium (T. & G.) Smyth 



6. Joints of the pods oval ; leaflets lanceolate or o\at('-Ian- 



ceolate, reticulate beneath, pilosulous; stem uncinate- 



