596 FABACEAE 
to oblong-oblanceolate or oval, 2-5 cm. long, mucronate or notched at the apex, reticulated 
and lustrous above: racemes 5-12 cm. long, densely flowered: pedicels 5-15 mm. long: 
calyx campanulate, 8-10 mm. long; tube oblique, turbinate at the base; lobes unequal, 
the 2 upper ones mostly united, the lower ovate to triangular: corolla violet ; standard 
with a suborbicular or ovate crisped notched blade 1-1.5 cm. long; other petals with 
oblong-obovate blades : pods 5-10 cm. long, 3-4-seeded, constricted between the seeds. 
Along limestone blufis, Texas to New Mexico and Mexico. Spring and summer. 
2. CLADRÁSTIS Raf. 
Small trees, with watery sap and yellow wood. Leaves alternate, without stipules, 
deciduous : blades unequally pinnate : petioles stout, enlarged at the base : leaflets mostly 
alternate, with entire blades. Flowers perfect, in elongated terminal thirsoid panicles: 
calyx nearly tubular, somewhat oblique, puberulent: lobes 5, short and broad. Corolla 
white : petals 5, all with claws of about the same length : standard with an oblong-orbicu- 
lar blade, somewhat emarginate, undulate: wings with an oblong straight auricled blade, 
this blotched with yellow: keel-petals distinct, much like the wings. Stamens 10: fila- 
ments distinct, glabrous. Ovary narrow, stalked, villous. Style subulate, slightly incurved. 
Pod linear, flattened, glabrous, short-stalked, tardily dehiscing, slightly thickened at the 
margins. Seeds oblong, flattened. YELLOW-woop. 
1. Cladrastis litea (Michx.) Koch. A tree reaching a height of 17 m., witha 
smooth bark and almost glabrous foliage. Leaves 2-4 dm. long ; leaflets with membranous, 
oval to oblong or ovate or even suborbicular blades, or the terminal one sometimes cuneate, 
somewhat acuminate at the apex, the nerves and short stalk more or less pubescent: 
panicles loosely many-flowered, 1-5 dm. long: pedicels 1-2.5 cm. long: calyx tubular- 
campanulate, the base of the tube oblique and turbinate : lobes rounded, much shorter than 
the tube : corolla white : petals more or less crisped : pods linear-oblong, acute at each end, 
4-8 cm. long, short-stalked. [C. tinctoria Raf.] 
In rich soil, Kentucky to Tennessee and North Carolina. Spring and summer. 
3. THERMOPSIS R. Br. 
Perennial caulescent herbs, with horizontal rootstocks. Leaves alternate, with leaf- 
like stipules: blades digitately 3-foliolate : leaflets nearly equal, with entire membranous 
blades. Flowers perfect, in terminal or lateral racemes. Calyx pedicelled : lobes nearly 
equal or the 2 upper wholly united. Corolla yellow or rarely purple: standard with a 
broad spreading blade, the sides reflexed : wing-petals with oblong blades: keel as long as 
the wings or longer. Stamens 10, distinct. Anthers nearly alike. Ovary sessile or 
nearly so, narrow. Style slightly incurved. Ovulesnumerous. Pod narrow, often linear, 
flat, 2-valved. 
Stems branched above the base: pods glabrous or nearly so. 
Peduncles and pedicels closely pubescent: calyx-tube pubescent. : 
Lower calyx-lobes triangular, much shorter than the tube. 1. T. mollis. 
Ded ei ant Dod ous PR EOD or se e s fae nt: calyx-tube glabrous 3. T. frazinifolia. 
Stems simple above ihe ee pods oliv E E r > E i 4. T. Caroliniana. 
1. Thermopsis móllis (Michx.) M. A. Curtis. Foliage pubescent with minute a 
ressed hairs. Stems 3-9 dm. tall, branching: stipules oblong-lanceolate : leaflets 3, the 
lades oblanceolate to elliptic, notched or acute at the apex, acute at the base: racemes 
erect, 1-3 dm. long, loosely flowered : pedicels 7-15 mm. long, subtended by lanceolate or 
oblong-lanceolate bracts : calyx campanulate ; lobes triangular, acute, 3 as long as the tube : 
corolla yellow : pods linear, 5-10 em. long, slightly curved. 
In dry soil, Virginia to North Carolina and Alabama. Spring and summer. 
2. Thermopsis Hügeri Small. Foliage minutely pubescent, but little changed in 
drying. Stems 3-6 dm. tall, branching : stipules lanceolate or linear-lanceolate, Loa 
long, acute : leaflets 3, the blades elliptic, somewhat acuminate at both ends or those 0 ad 
lower leaves oblanceolate, 5-6 cm. long, somewhat lustrous above, the minute pie tia de 
often abundant at the conspicuous nerves : racemes about 1 dm. long, few-flowered : pe ree 
4 6 mm. long, with bracts similar to the stipules : calyx campanulate, 6-7 mm. long fae : 
except the upper one, lanceolate-acuminate, about as long as the tube: corolla rg 
yellow ; standard with a suborbicular notched blade about 12 mm. in diameter ; wine. 
nearly 2 cm. long, their blades almost oblong ; keel-petals similar to the wings, but owe 
obovate. [Baptisia Hugeri Small. ] 
On mountain slopes, North Carolina and Georgia. Spring. 
