46S Britton: Studies of West Indian plants 



densely clustered, acute, sessile, glabrous; stipules deeply laciniate, 

 about one-third as long as the leaves; calyx very small; corolla 

 salverform, white, its tube cylindric, 2.5 cm. long, its limb spread- 

 ing, 4-lobed, the lobes ovate, acute, nearly 1 mm. long. 



Dry white sand, central districts; type from near Los Indios 

 (Britton & Wilson 14197). 



Palicourea elongata Britton & Wilson, sp. nov. 



A shrub 2 m. or more high; twigs, branches of the inflorescence, 

 and pedicels minutely hispidulous with brownish hairs; leaves in 

 whorls of threes, lanceolate or occasionally broadly oblanceolate, 

 12-19 cm. long, 4-6 cm. broad, acuminate at the apex, cuneate to 

 somewhat rounded cuneate at the base, puberulent above on the 

 midvein when young, puberulentbeneath, especially on the midvein 

 and lateral veins; stipules linear-lanceolate, 8-12 mm. long, ciliate; 

 panicle elongate, 7-19 cm. high; calyx-lobes deltoid-ovate, ciliate; 

 corolla puberulent, 7-10 mm. long, the lobes triangular-ovate; 

 fruit broadly ovoid, 4-5 mm. long, 4-4.5 mm. broad, flattened. 



Arroyo, Las Tunas (Britton & Wilson 14749, type) ; Arroyo, 

 vicinity of San Pedro (Britton & Wilson 15785); Los Indios 

 (0. E. Jennings 332) . 



Elephantopus arenarius Britton & Wilson, sp. nov. 



Plant 6-8 cm. high, the stem branching from the base; leaves 

 cauline, linear, 2-4 cm. long, 1 mm. broad, involute, conspicuously 

 ciliate at the broadened, clasping base with long hairs, entire; 

 peduncles loosely hirsutulous, 2-3.5 cm - long; glomerules 5-6 mm. 

 high ; bracts broadly ovate to ovate-orbicular, cordate at the base 

 with a linear, ligulate tip, 0.5-1 cm. long, reticulate- veined on 

 the back, glabrous; scales acuminate, glabrous; achenes (immature) 

 2 mm. long; pappus-scales triangular to lanceolate, ciliate. 



White sand, vicinity of Los Indios (Britton & Wilson 14206). 



Closely related to Elephantopus pratensis C. Wright, but dif- 

 fering in the narrow involute leaves and linear ligulate tipped 

 bracts. 



Erigeron purpuripes Britton & Wilson, sp. nov. 



A low, scapose perennial. Leaves tufted, erect, the blades 

 elliptic to oblong-obovate, 1-2 cm. long, pinnately few-veined, 

 obtuse at the apex, narrowed at the base, ciliolate, puberulent or 

 glabrate; petioles very slender, purple, 2 to 4 times as long as the 

 blades; scapes nearly filiform, erect, appressed -pubescent, about 



