4 Britton: Studies of West Indian plants XII 



70. UNDESCRIBED SPECIES FROM TRINIDAD 

 Anthurium aripoense N. E. Brown, sp. nov. 



Glabrous in all parts. Petioles about 75 cm. long and (when 

 dried) 4 mm. thick, sheathing for about 7 cm. at their base, 

 apparently more or less flattened above with obtuse edges, 

 rounded on the back; blades about 34 cm. long, 26 cm. broad 

 across the basal lobes and 18 J 2 cm. broad at the constriction, 

 cordate, with the basal lobes slightly constricted into the front 

 lobe at about 1 1 cm. above the insertion of the petiole ; basal sinus 

 about 4 cm. deep, broadly open, rounded; basal lobes semi- 

 orbicular; front lobe ovate, abruptly acute, apiculate; both 

 surfaces green; basal nerves 4 on each side of the midrib, the 3 

 outer united and denuded at the sinus for about 25 mm., much 

 curved and all excurrent at the margin below the middle of the 

 leaf; the inner one free, ascending and excurrent at the apex, 

 running subparallel with the margin at about 12-15 mm. 

 from it ; primary lateral veins about 7 on each side of the midrib, 

 with others similar but less prominent between them, widely 

 spreading, subparallel, nearly straight. Peduncle about 57 cm. 

 long, 4 mm. thick (dried), apparently terete. Spathe 1 1 cm. long, 

 12 mm. broad, strap-shaped or broadly linear, with a subulate 

 point about 25 mm. long. Spadix 15 cm. long, 5 mm. thick at 

 the base, much longer than the spathe, on a stipe 5 mm. long, 

 apparently violaceous or dark purple. Flowers diamond-shaped, 

 4 mm. in their longer and 3 mm. in their shorter diameter. 



Heights of Aripo, {Broadway 9924). 



The venation of the leaf of this species is on the same plan 

 as that of A. Guildingii Schott, but in outline the slight constric- 

 tion above the basal lobes brings it nearer to A. panduraeforme 

 Schott. 



Piper maravalanum Trelease, sp. nov. 



Stem nodose, glabrous; leaves ovate or elliptic-ovate, acumin- 

 ate, equilaterally rounded at base, rather large (6-9 X 1 51 7 

 cm.), pinnately nerved from below the middle, the nerves about 

 5X2 and sparingly pubescent beneath; petiole rather short 

 (scarcely 10 mm.), not winged; spikes opposite the leaves, as 

 yet comparatively short and thick (2 X 15 mm.), mucronate; 

 peduncle very short (scarce 5 mm.); bracts lunulate-subpeltate, 

 rusty-ciliate; flowers sessile, perfect; stigmas 3, minute, sessile. 



Maraval, December 30, 1914, {Broadway 7829, the type 

 in the New York Botanical Garden). 



Scarcely to be placed anywhere except in close connection 

 with P. Schackii and P. ovatunr, but pubescent beneath on the 

 veins. 



