696 PROCEEDINGS OF THE AMERICAN ACADEMY. 



reflexed at maturity: stamens erect; filaments one- third length of an- 

 thers, broad at base; anthers a little shorter than corolla, broad; apical 

 pores the width of cell, at maturity splitting laterally : ovary glabrous, 

 ovoid, gradually jmssing into the filiform style ; stigma minute, shortly 

 2-lobed ; fruit ovoid, 7 mm. long; seeds numerous, flat, reniform, 2 to 



3 mm. long. — Rio Asuncion, in the heavy woods along the Juan Griego 

 trail, Jolinston, no. 321, July 22, 1903. Allied to S. gracillima, Seudtn. 

 of Brazil, it differs in having broader leaves, a very short peduncle, a 

 stouter pedicel, and a larger calyx, the lobes of which are rounded at 

 the apex. 



Bignonia acuminata, n. sp. (§ Conjugatae.) Shrubby, scan- 

 dent: leaves opposite, 3-foliolate ; leaflets oval with rounded base, and 

 with acuminate apex, entire or repaud, on both surfaces covered with a 

 glistening white pubescence, less dense above than below, in dry state 

 nearly black above and gray below, 4 to 6 cm. long and 2 to 3 cm. wide ; 

 middle leaflet often giving place to a simple stout tendril ; petiole 3 to 



4 cm. long ; lateral petiolules 0.5 cm. in length, middle one twice as 

 long; stipules not apparent: inflorescence axillary, short-pedunculate, 

 racemose-paniculate ; pedicels slender, short, 3 to 5 mm. long; rachis and 

 pedicels pubescent ; bracts lanceolate, acute, 3 mm. long ; bractlets similar, 

 slightly smaller : calyx 2-lipped, pubescent or glabrous, 7 mm. deep, 

 rarely unequally 3-lobed, each lobe rounded, very shortly apiculate : 

 corolla purple, 3.5 cm. long, slightly 2-lipped, 5-lobed ; lobes rounded : 

 stamens pilose at the base, 4, didynamous ; staniinodiura short : disk 

 broad, pulviuate ; ovary puberulent, 2-celled, axial placentation, with 

 2 rows of ovules in each cell ; style slender, glabrous ; stigma clavate, 

 2-cleft: fruit linear, compressed, 7 mm. wide, about 10 cm. long. — El 

 Valle, Johnston, no. 345, 1903. 



Tabebuia rufescens, n. sp. Arborescent : leaves opposite, pal- 

 mately compound, 5-foliolate; young leaflets elliptical, acute or acumi- 

 nate, stellate-pubescent, 1 cm. wide and 2.5 cm. long, probably larger at 

 maturity ; petiole 3.5 cm. long, and petiolule 2 to 6 mm. long, all tawny 

 stellate-pubescent ; inflorescence terminal, cymose, pubescent with the 

 exception of the corolla, precocious ; pedicel 1 cm. long ; bracts minute, 

 subulate : calyx tubular, 5-ribbed, 5-lobed ; lobes acute : corolla yellow, 



5 to 7 cm. long, glabrous without, villous within on under side ; stami- 

 nodium long, glabrous : style persistent ; stigma clavate, 2-lobed : young 

 pods brownish, velvety-pubescent ; pod 2-celled, cylindrical, recurved. — 

 San Juan mt, alt. 500 m., Johnston, no. 79, July 2, 1903. 



Chiococca micraiitha, n. sp. Shrubby; stems decumbent, 3 m. 



