‘ 210 
Leaflets tipped with a rigid acuminate point, _ 
26. C. Simpson. 
Leaflets acutely subfalcate, 24. C. procumbens. 
SUBGENUS I. FISTULA. 
Unrepresented in the United States. 
SUBGENUS II. SENNA. 
Herbs or shrubs, rarely trees. Petiolar gland when present 
more or less prominent, subglobose, oblong or slender, and stipi- 
tate. Flowers in racemes, which often become paniculate or 
corymbose, usually terminating the younger branches. Stamens 
10, the three upper and occasionally a lower one reduced to 
staminodia; anthers oblong, truncate or more often rostrate at 
apex, dehiscent by 1 or 2 terminal pores or chinks; base obtuse, 
more or less bilobed. Legume of variable shape, dehiscent along 
one or both sutures, more rarely indehiscent; valves inelastic. 
Ovules funiculate, longitudinal or transverse. : 
Section A. CHAMAFISTULA. 
Our species all herbs. Leaves inter-glandulose or eglandulose. 
Perfect stamens 7, staminodia 3. Legume terete, turgid or com 
pressed, usually dehiscent along dorsal suture, more rarely along 
both sutures. Ovules transverse, separated by septa. 
Series Bacillares, Corymbose and Excelse unrepresented in the 
the United States. 
Series Brachycarpe. 
Leaves 2-many-foliolate.. Anthers equal, or the 2-3 inferior 
longer, subrostrate. Legume short, curved or sometimes straight, 
turgid, submembranaceous, bivalvate. Racemes few-flowered, OF 
when many-flowered becoming corymbose-paniculate. 
1, Herbs with perennial rhizome; leaves 2-foliolate. 
I. (ASSIA Ra:MERIANA Scheele. 
Cassia Remeriana Scheele, Linnza, 21: 457 (1848)- 
Plant of medium height, clothed with closely appressed pu- 
bescence, sending up several_many stems from the thick, knotty i. 
rhizome; leaflets densely pilose, lance-linear, 3-6 cm. long, A a a 
-I.2 cm. wide, asymmetrical at base, borne on a somewhat €0°” 
{ 
