694 PROCEEDINGS OP THE AMERICAN ACADEMY. 



apex rounded ; corona 5-parted, parts triangular, apex obtuse, margin 

 slightly fimbriate, a little shorter than the corolla; base fleshy, united 

 into a tube with the bases of filaments: filaments equalling petals; 

 anthers small, sagittate, apex narrowly emarginate : ovary pubescent 

 when young; style persistent, 1.5 mm. long, tapering; stigma minute; 

 fruit one-celled with few seeds, fleshy, 2 mm. in diameter, capped by a 

 small circular often pubescent disk subtending the style; fruit glabrous. 

 — Punta Mosquito, east of Laguna Chica, Johnston, no. 273, Aug. 10, 

 1903, and Coche, Aug. 5, 1903. 



Ditassa subulata, n. sp. Procumbent, pubescent : leaves oval to 

 elliptical, varying from 2 by 0.8 cm. to 1 by 0.4 cm., subglabrous, often 

 brown above, green bflow, revolute, with base obtuse, and with aitex 

 acute and mucronate by the prolongation of the one central nerve, about 

 7 to 10 pairs of lateral nerves parallel to each other and at an angle of 

 75° to 80° to the midrib ; petiole pilose, 2 to 3 mm. long : inflorescence 

 nodose, 3- to 5-flowered, subsessile, pilose; pedicels slender, equalling the 

 petiole : calyx deeply lobed ; lobes lance-ovate, narrowly obtuse or acute ; 

 5 subulate glands at base of calyx alternating with the sepals : corolla 

 white, deeply lobed ; lobes narrowly lanceolate, subvalvate, externally 

 glabrous, coarsely pilose within, 3 mm. long ; corona 2-serial, adnate at 

 base of column ; outer series subulate, exceeding the stigma nearly twice, 

 two-thirds as long as the corolla ; inner series subulate, barely exceeding 

 stigma, nearly two-thirds as long as outer series : appendages of anthers 

 hyaline, orbicular, emarginate : ovary glabrous ; stigma pentagonal with 

 a smaller convex cap: fruit unknown. — San Juan mt., climhing over 

 the low shrubs at the summit, alt. 740 m., Johnston, no. 262, July 6, 

 1903. 



Evolvulus arenicola, n. sp. (§ Anagalloidei.) Annual; stem 

 short; branches several, simple, 5 to 10 cm. long, silky-pubescent: 

 leaves distichous, subsessile, elliptical, silky-pui)escent all over, 0.6 to 

 1 cm. long and 0.2 to 0.4cm. wide; base attenuate; apex acuminate: 

 flowers axillary, solitary; pedicels 2 mm long with two minute bracts 

 at the base: calyx externally pubescent, 2 mm. long, 5-Iobed ; lobes nar- 

 row, acute: corolla pale blue, 3 times as long as calyx: ovary glabrous, 

 containing 4 dull brown seeds. — Along the trail from Porlamar to San 

 Antonio, Miller S^ Johnston, no. 218, Aug. 2, 1901. Allied to E. incmins, 

 Pers. and E. holosericeiis, HBK. 



Bassovia ciliata, n. sp. Shrub 15 to 21 dm. high, branching : leaves 

 alternate or fasciculate, 2 to 3 in a fa>cicle, unequal, lanceolate, as much 

 as 7 cm. long and 3 cm. wide, attenuate at both ends ; margin entire, cili- 



