586 



LEGU MINOS AE 



Cassia 



50 



Map 1193 



Cercis canadensis L. 



50 



Map ||95 



Cassia mctitans var. leiocarpa Fern 



more than 2 feet in diameter at breast height. When I reported this tree 

 to Prof. H. C. Cowles of Chicago University, he doubted the identity 

 of the species or the measurements and made a trip to the tree and verified 

 my measurement. It is found in woodland throughout the state, being most 

 abundant in the southern half and infrequent to rare in the northern 

 counties. Its preferred habitat is wooded ravines and banks of streams. 



At maturity the leaves are glabrous on both surfaces with a few hairs 

 in the axils of the veins beneath or are more or less pubescent on the 

 lower surface. The glabrous form has been named forma glabrifolia Fern. 

 (Rhodora 38: 234. 1936). 



N. Y. to Iowa, southw. to Fla. and Tex. 



3536. CASSIA [Tourn.] L. 



flowers solitary or in small clusters in the axils of the leaves; leaflets 7-20 mm long, 

 2-5 mm wide; pods straight, mostly less than 7 cm long, erect or ascending. 

 Flowers small; pedicels 2-4 mm long; petals 3-8 mm long; stamens 5; pods 2.5-4 cm 

 long; seed 6-9. 



Mature pods closely covered with short incurved hairs 1. C. nictitans. 



Mature pods glabrous la. C. nictitans var. leiocarpa. 



Flowers large; pedicels 10-20 mm long; petals 10-17 mm long; stamens 10; pods 4-7 

 cm long; seed 6-15. 

 Stems and pedicels with short, incurved hairs; pods glabrate or with short, ap- 



pressed hairs 2. C. fasciculata. 



Stems and pedicels with relatively long, spreading hairs; pods pubescent with 

 relatively long, spreading hairs; whole plant larger and stouter than the 



preceding 2a. C. fasciculata var. robusta. 



Flowers in axillary or terminal racemes; leaflets 2-7 cm long, 6-20 mm wide; pods more 

 or less curved, 6-20 cm long, recurving. 

 Leaflets 6 or 4, at least the terminal pair broadly obovate, 1.5-5 cm long; pods up to 



2 dm long; annual. (See excluded species no. 384, p. 1065.) C. Tora. 



Leaflets more than 6, oblong, elliptic or ovate to ovate-lanceolate, 2-7 cm long; pods 

 6-12 cm long; perennial or annual. 

 Leaflets acuminate, ovate to ovate-lanceolate, mostly 4-6 pairs .... 3. C. occidentalis. 

 Leaflets obtuse or acute, oblong, oblong-lanceolate or elliptic, mostly 6-11 pairs; 

 perennial. 



