50 Britton: Studies of West Indian plants — XI 



Stenostomum apiculatum Britton Sc Standley, sp. nov. 



Branchlets thick, resinous, densely leafy, sericeous-strigose; 

 stipules united, persistent, the sheath 5 mm. long, densely stri- 

 gose; petioles stout, 5-12 mm. long, densely strigillose; leaf 

 blades elliptic, 4.5-7 cm. long, 2.5-4 cm - wide, obtuse or acute at 

 base, obtuse at apex and apiculate-acuminate, coriaceous, green 

 above, lustrous, glabrous, the costa depressed, paler beneath 

 and brownish, sparsely strigillose, the veins prominent, the 

 lateral ones about 9 pairs, arcuate, distant, the margin plane or 

 subrevolute; peduncles slender, about 3 cm. long, the 2 branches 

 2-2.5 cm - l° n g» io-12-flowered; calyx and hypanthium 1-1.5 

 mm. long, glabrate, the calyx with very short, obtuse teeth; 

 corolla 7 mm. long, densely strigillose outside; filaments very 

 short, the anthers oblong-linear, equaling the corolla tube; 

 stigma 4-lobate. 



Type (in the U. S. National Herbarium) collected in the Sierra 

 Maestra, Oriente, July, 1922 (Leon, 10806.) 



Psychotria Leonis Britton & Wilson, sp. nov. 



Shrub, the twigs and branches of the inflorescence puberulent. 

 Leaves elliptic to oval, 3-5 cm. long, 1.5-3 cm. broad, acute to 

 short-acuminate at the apex, acute at the base, glabrous above, 

 pubescent beneath when young with short appressed hairs, the 

 primary veins indistinct above, prominent beneath; petioles 

 I.3-I.5 cm. long, puberulent; panicles few-flowered; calyx 

 funnel-shaped, shallowly toothed, the teeth triangular, acute; 

 buds narrowly ellipsoid, puberulent; mature flowers and fruits 

 not seen. 



Sierra Maestra, Oriente (Leon 10780). 



Lobelia cacuminis Britton & Wilson, sp. nov. 

 Suffrutescent, the stems 3-4 m. high, nearly glabrous. Leaves 

 chartaceous, oblanceolate, 7-13 cm. long, 2.5-4.5 cm - wide, 

 acuminate at the apex, cuneate at the base, rather coarsely 

 dentate, the petioles 1.5-3 cm. long; midrib flat above, prominent 

 beneath , the lateral veins ascending ; inflorescence many-flowered ; 

 pedicels slender, 10-12 mm. long, pubescent; calyx-lobes nar- 

 rowly lanceolate, 3-4 mm. long; mature corolla not seen; young 

 fruits 1 cm. in diameter. 



Pico Turquino, Oriente (Leon 10862). 



Senecio Leonis Britton & Wilson, sp. nov. 



Vine, the slender stems glabrous. Leaves ovate, triangular- 

 ovate or occasionally lanceolate, 1.5-4.5 cm. long, 0.9-2.7 cm. 

 wide, often with one or more prominent teeth at or above the 



