333 



CAESALPINIACEAE. 



VOL. II. 



4. HOFFMANSEGGIA Cav. Icones 4 : 63. pi. 392, 393. 1797. 



Herbs, or low shrubs, with glandular-punctate bipinnate leaves, small stipules, and yellow 

 flowers in terminal or lateral racemes. Calyx deeply 5-parted, the lobes nearly equal. Petals 

 5, oval or oblong, imbricated, nearly equal. Stamens 10, distinct, slightly declined; filaments 

 often glandular at the base; anthers all alike, longitudinally dehiscent. Ovary nearly sessile; 

 ovules o. Pod flat, linear, oblong or ovate, curved or straight, 2-valved, several-seeded. 

 [In honor of Joh. Centurius, Graf Hoffmansegge, a writer on Portuguese botany.] 



About 20 species, natives of western America and South Africa. Besides the following, some 

 9 others occur in the southwestern United States. Type species : Hoffmanseggia falcaria Cav. 



Leaflets black-punctate ; pod obliquely oblong. i. H. Jamesii. 



Leaflets not punctate ; pod linear-oblong. 2. H. falcaria. 



i. Hoffmanseggia Jamesii T. & G. James' Hoff- 

 manseggia. Fig. 2443 



Pomaria glandulosa Torr. Ann. Lye. N. Y. z : 193. 1826. 



Not Cav. 1799. 



Hoffmanseggia Jamesii T. & G. Fl. N. A. i : 393. 1840. 

 Caesalpinia Jamesii Fisher, Coult. Bot. Gaz. 18 : 123. 1893. 



Herbaceous, glandular, black-punctate and finely pubes- 

 cent, branching at the base from a deep woody root; 

 stems 6'-i2 r high. Stipules subulate; leaves petioled, 

 bipinnate ; pinnae 5-7 ; leaflets 9-19, oval or oblong, ob- 

 tuse at each end, inequilateral, il"-3" long; racemes 

 terminal, or lateral (opposite the leaves), elongated; 

 flowers yellow, distant, deflexed, 3" -4" long, the upper 

 petal spotted with red; pod flat, obliquely oblong, black- 

 punctate, about i' long and 5" wide, 2-3-seeded, tipped 

 with the base of the style. 

 Plains, Kansas to Texas, Arizona and New Mexico. June-July. 



2. Hoffmanseggia falcaria Cav. Sickle-fruited 

 Hoffmanseggia. Fig. 2444. 



Hoffmanseggia falcaria Cav. Icones, 4: 63. pi. 392. 1797. 

 H. stricta Benth. ; A. Gray, PI. Wright, i : 56. 1852. 

 Caesalpinia Falcaria Fisher, Coult. Bot. Gaz. 18 : 122. 1893. 



Herbaceous, puberulent, not black-punctate, the glands 

 of the peduncles and petioles stalked ; stems ascending 

 or decumbent, i high or less. Stipules ovate; leaves 

 slender-petioled, bipinnate; pinnae 7-11; leaflets 12-21, 

 oblong, obtuse, ii"-3" long; racemes few-several- 

 flowered, elongating in fruit; pod flat, linear-oblong, 

 curved or nearly straight, i'-ii' long, about 3" wide, 

 blunt, 8-i2-seeded, the fruiting pedicels recurved. 



Kansas (according to Fisher) ; Texas, west to Califor- 

 nia. Also in Central and South America. April-June. 



5. GLEDITSIA L. Sp. PI. 1056. 1753. 



Large thorny trees, with evenly once or twice pinnate leaves, small stipules, and small 

 greenish polygamous flowers in slender axillary spicate racemes. Calyx campanulate, 3-5- 

 cleft. Petals 3-5, equal, sessile, inserted at the summit of the calyx-tube. Stamens 3-10, 

 distinct ; anthers all alike, longitudinally dehiscent. Ovary rudimentary or none in the stami- 

 nate flowers, in the fertile ones nearly sessile, elongated or ovoid. Ovules 2-00. Pod linear 

 or oval, flat, nearly straight, or twisted at maturity, coriaceous, tardily dehiscent, i-seeded 

 or many-seeded, sometimes pulpy between the flat seeds. [In honor of J. T. Gleditsch, 1714- 

 1786, German botanist, the name often spelled Gleditschia.] 



About 6 species, natives of eastern North America and Asia. Besides the following, one 

 occurs in Texas. Type species : Gleditsia triacanthos L. 



Pod linear-oblong, elongated, many-seeded. i. G. triacanthos. 



Pod obliquely oval, short, i-seeded. 2. G. aquatica. 



