BRITTON: STUDIES OF WEsT INDIAN PLANTS—XII 5 
Piper aripoense Trelease, sp. nov. 
shrub, 1 m. tall; flowering internodes moderately slender 
and short, zig-2ag, hirsute; leaves elliptic or oblanceslate-elliptic, 
acuminate, more or less unequally cordulate, moderately large 
(5 X14-9X 20 cm.), pinnately nerved from below the upper fourth, 
the nerves about 9 X 2, paler and appressed-hirsute on the 
nerves beneath; petiole short (scant 5—exceptionally 10 mm.), 
sometimes covered by the longer side of the base, hairy, winged 
to the blade; spikes opposite the leaves, rather thick and short 
(4 X 25 mm.), blunt; peduncle short (5 mm.), hirsute; bracts 
concave-incurved, gl abrou us; Hower sessile, perfect; stigmas 3, 
sessile; berries See ROS glabrou 
Heights of Aripo (Britton and i 2353, the TYPE at 
the New York Botanical Garden). 
Prestonia Brittoni N. E. Brown, sp. nov. 
Stem twining, 3 mm. thick at the flowering parts, glabrous. 
Leaves oie stipulate; ere 4 in the specimen seen I5 mm. 
long, glabrous; blade about 16 cm. long and 7% cm. broad, 
oblong- alinac ‘shortly acute and ease at pe sh rounded 
at the base, glabrous on both sides, with 8-9 primary veins on 
each side of the midrib inarching and unitin Ke mm. from the 
margin; suouies formed of a number of small teeth 1 mm. lon 
between the bases of the petioles. Cymes axillary pedunculate, 
6-8 cm. in diameter, quite glabrous in all parts; peduncle 3-4 
cm. long, nearly 2 mm. thick. Pedicels 15-25 mm. long. Sepals 
10 mm. long and 4-5 mm. broad, oblong, obtuse, rather thick; 
at the base ae each sepal, between it and the corolla is a broadly 
deltoid-ovate obtuse gland about 1 mm. long. Comih only seen 
in bud and in that condition the tube is 12 mm. long and 3 mm. 
in diameter, cylindric, not dilated at any ork surmounted by a 
truncate-based acute cone 5 mm. long and 6% mm. in dia- 
meter formed by the contorted eet 2 Sorts of the tube raised 
within into a distinct rim about 1 mm. high, without ee 
or other appendages; lobes as unfolded iis the 
long and 6 mm. broad, suborbicular, entire. Shisacas seertod 
5 mm. below the top of the corolla-tube; filaments 1 mm. long; 
anthers 5 mm. long, not or scarcely exserted. ary surrounded 
by 5 large faintly crenulate or faintly toothed fleshy lobes. 
Heights of Aripo (Broadway 10009). 
Decastelma trinitense N. E. Brown, sp. nov. 
Stem twining, up to 2 mm. thick at the flowering part, with 
internodes 2-3 cm. long, minutely at ir brown. Leaves 
spreading; petiole 4-6 mm. long, minutely puberulous; blade 
