356 PENNELL: PLANTS OF SOUTHERN UNITED STATES 
regen glabrous or nearly so, conspicuously ciliate, 
, 5-7 mm.'long. Petioles 2-5 mm. long, puberulent with 
ineiieved "arg Petiolar gland single, stalked, discoid, 0.2—-0.3 
mm. wide, nearly black, stalk brown. Leaflets twelve to sixteen 
pairs, 8-12 mm. long, I-2 mm. wide, oblong-linear, acutish, 
mucronate-tipped, glabrous, strongly ciliate, obscurely nerved. 
Bracteoles 1-1.7 mm. long, lanceolate. Pedicels one or two in a 
fascicle, 3-5 mm. long, appressed-puberulent. Sepals 4-5 mm. 
long, lanceolate, acuminate, hirsute. Petals 3-6 mm. long, 
anterior twice exceeding laterals. Stamens unequal; anthers 2 
mm. long, yellow (?). Legumes 3-4.2 cm. long, 3-4 mm. wide, 
appressed-puberulent. Seeds ten to eighteen, 3 mm. long, very 
thin, light-brown. 
Dry soil, western Texas to southeastern Arizona. 
Texas. El Paso: C. Wright 154 (U). Presidio: Chenates re- 
gion, G. C. Nealley 541 (U). 
New Mexico. Dona Ana: Organ Mountains, E. O. Wooton 
435 < September 1 (Y). Luna: Floridas, A. I. Mulford 1038a 
> August 2 (Y). 
Arizona. Cochise: Bowie; Chiricahua Mts., J. C. Blumer 2086 
> August 30 (U); Fort Huachuca; Tucson. Pima: Santa Rita 
Mountains, D. Griffiths & J. J. Thornber 212 (U, Y). 
12. CHAMAECRISTA NICTITANS (L.) Moench 
Cassia nictitans L. Sp. Pl. 380. 1753. ‘‘Habitat in Virginia.” 
Typified by L. Hort. Cliff. 497. pl. 36, 1737, where an excellent 
description and figure are given. 
Cassia procumbens L. l.c. 380. 1853. ‘Habitat in Indiis.” 
Based wholly upon ‘‘Cassia americana procumbens, herbacea, 
mimosae foliis, floribus parvis, siliquis angustis, planis,” A. J. 
Almmann], Comm. Petrop. 12: 238-242 (cited erroneously 
_by Linnaeus as “Comm. petrop. t. 11’’). This is fully de- 
* scribed and is unquestionably Chamaecrista nictitans (L.) 
Moench. The type-locality is stated ‘circa Philadelphiam 
urbem in Pensylvania, Americae septentrionalis provincia, 
sitam.’”” There appears to have been no specimen in the 
Linnean herbarium in 1753, and the species is not checked by 
Linnaeus until his third list in 1767. The West Indian plant 
known until recently by this name has been described by Dr. 
