344 Pennell: Plants of southern United States 



petioles, evident stalked petiolar gland, rounded not winged 

 leaf-rachis (in C. texana this is flattened, slightly winged), larger 

 scarcely veined evidently cuspidate leaflets, stouter densely 

 puberulent pedicels shorter than the subtending leaves, and 

 flowers larger, 30-35 mm. in diameter. 



C. micrantha Britton (" C procumbens," not L.), of Cuba and 

 the Isle of Pines, differs by its ovate-lanceolate stipules, evident 

 petiolar gland, terete not winged leaf-rachis, shorter scarcely 

 veined usually more puberulent to pubescent leaflets, peduncles 

 becoming but 10-20 mm. long, smaller flowers 15 mm. in diameter, 

 and more puberulent eight- to twelve-seeded legumes. 



Dry sandy soil, southern Texas. 



Texas. Bastrop:* 5. B. Buckley (A). Cameron: Rudolph, 

 F. L. Lewton 178 > April 13 (U). Duval: Pena, G. C. Nealley 117 

 (P, U). Victoria: Aloe, F. W. Pennell 5496 > September 18 (P). 

 Webb: Laredo, Schott 105 > June (Y). Also "De Matamoros a 

 las Nueces," Berlandier 2427 (A, U, Y). 



4. Chamaecrista keyensis Pennell, sp. nov. 



Perennial. Stems spreading, 1-8 dm. long, densely pubescent 

 with spreading hairs. Stipules lanceolate-acuminate, 4.5-5 mm. 

 long. Petioles 3-6 mm. long, densely spreading-pubescent. 

 Petiolar gland single, toward distal end of petiole, sessile, more or 

 less raised, saucer-shaped. Leaflets four to seven pairs, 7-10 

 mm. long, 2-4 mm. wide, oblanceolate, mucronate, densely 

 pubescent with somewhat incurved hairs. Pedicels one or two, 

 15-20 mm. long, pubescent with spreading upcurved hairs. Sepals 

 8-9 mm. long, lanceolate-acuminate, hirsute. Petals 9-10 mm. 

 long, the anterior but slightly exceeding the laterals. Stamens 

 ten, unequal; anthers 7-8 mm. long, gradually narrowed above, 

 reddish-purple. Legumes 4-4.5 cm. long, 4-5 mm. wide, puberu- 

 lent with incurved hairs. Seeds twelve, 3 mm. long. 



Type, rocky pine woods. Big Pine Key, Monroe County, 

 Florida, collected in flower May 2, 191 7, F. W. Pennell 9553 in the 

 herbarium of the New York Botanical Garden. 



The Antillean C. grammica (Spreng.) Pollard, with which this 

 has been identified, differs by its appressed pubescence and con- 

 spicuously stalked glands. 



* As in preceding lists, one specimen (rarely several) from a county is cited, 

 county-names being arranged alphabetically. For herbaria cited see Bull. Torrey 

 Club 43: 94. 1916. 



