Desmanthus Leguminosae 585 



Pods mostly 3-8 mm long, 1- or 2-seeded; flowers 6-8 mm long, purplish, 



in dense spicate racemes, 6-12 cm long; shrubs 0.6-4 m high 



3707. Amorpiia, p. 599. 



Pods more than 8 mm long; flowers more than 8 mm long. 



Trees with spiny, woody stipules; leaflets 7-17; flowers in racemes 7-15 

 cm long, white, about 1.5 cm long; pods very flat, about 1 cm wide, 



glabrous; seed about 4 mm long 3733. Robinia, p. 602. 



Herbs or woody vines, lacking spiny stipules; flowers not white; pods 



and seeds not as above. 



Leaflets (3) 5-9, large, of an ovate type, generally 2-8 cm long; 



twining herbs or woody vines. 



Twining herbs, 1-2 m long; leaflets (3) 5-7, large, the basal pair 



the largest, the largest blade up to 8 cm long; pods glabrous, 



the longest about 8 cm long, only slightly compressed ; flowers 



maroon, many, in long axillary racemes. .3874. Apios, p. 621. 



Twining, woody vines, up to 8 m long; leaflets usually 9, 3-7 cm 



long; flowers in rather dense racemes 15-35 cm long, lilac 



purple; pods 7-12 cm long 3722. Wisteria, p. 601. 



Leaflets 15-31, of a narrow type, elliptic, oval, oblong, or linear- 

 oblong, less than 4 cm long; erect or ascending herbs, generally 

 3-9 dm high. 

 Stems, pods, and under surface of leaflets densely long-pubescent; 



pods 3-5 cm long 3718. Tephrosia, p. 601. 



Stems, pods, and under surface of leaves glabrous or glabrate, 

 sometimes the lower surface of leaflets closely appressed- 

 pubescent; pods glabrous, about 1.5 cm long 



3766. Astragalus, p. 602. 



» 



3450. DESMANTHUS Willd. 



1. Desmanthus illinoensis (Michx.) MacM. (Acuan illinoensis 

 (Michx.) Kimtze.) Illinois Mimosa. Map 1192. I believe this species 

 was introduced into Indiana from the west. It was first reported in 1878 

 from Clark County by Baird & Taylor who lived at Jeffersonville, but 

 McMurtrie, who published a flora of the vicinity of Louisville in 1819, and 

 Clapp, who worked intensively the area about New Albany, did not report 

 it. It was not reported from Ohio until about 1900. Short, Peter, & Gris- 

 wold did not report it from Kentucky. Riddell, who published in 1835, 

 reports it from Kentucky on the authority of Eaton and from the area 

 west of Indiana. Our second published record is dated in 1924. I found it, 

 however, along a railroad in Daviess County in 1910 and along a roadside 

 south of Charlestown in 1915. I have seen it as an abundant plant about 

 ferries and on the rocky slopes of the bank of the Ohio River in Dearborn, 

 Jefferson, and Perry Counties. It has been reported also from Lake, Mont- 

 gomery, Putnam, and Washington Counties. Its preferred habitat seems 

 to be rocky slopes of banks, embankments of railroads, and prairies. 



Ohio to S. Dak., southw. to Ala. and Tex. 



3526. CERCIS L. 



1. Cercis canadensis L. Redbud. Map 1193. This is generally a small 

 tree, 3-8 inches in diameter, larger ones are rare. The largest redbud I 

 ever saw was located on the Dicksburg Hills in Knox County. It was 



