82 BRITTON: CuBAN PLANTS NEW TO SCIENCE 
Pinelands, Sierra Nipe, near Woodfred, Oriente (Shafer 
3294). 
Family OCHNACEAE 
Ouratea affinis Britton, sp. nov. 
A tree 3-5 m. high, the twigs slender, gray. Leaves coria- 
ceous, lanceolate or oblong-lanceolate, 4-7 cm. long, 2 cm, wide 
or less, entire, acuminate at the apex, obtuse or narrowed at the 
base, dull, faintly and closely pinnately straite-nerved, the mid- 
vein rather prominent; petioles 3-6 mm. long; fruiting pedicels 
2-6 mm. long; receptacle subglobose, 5-6 mm. in diameter. 
Mountains of northern Oriente. Type from Rio Naranja at 
450-550 m. altitude (Shafer 3860). 
Ouratea Roigii Britton, sp. nov. 
Twigs gray, slender. Leaves lanceolate, chartaceous, dull, 
4-7 cm. long, 1.5-2.5 cm. wide, acuminate at the apex, narrowed 
or rounded at the base, pinnately veined and reticulated, the vena- 
tion rather prominent beneath, the petioles 4-8 mm. long ; fruiting 
pedicels 2-4 cm. long; receptacle subglobose, about 6 mm. in 
diameter. 
Canete, Baracoa, Oriente (Roig 67). 
Family MARCGRAVIACEAE 
Marcgravia calcicola Britton, sp. nov. 
Barren climbing branches very slender, 3 dm. long or longer, 
their leaves sessile, ovate, cordate, acute, about 2 cm. long. Flow- 
ering branches slender, gray, their leaves oblong, 5-6 cm. long, 
12-20 mm. wide, acute at both ends, the midvein prominent be- 
neath, impressed above, the lateral venation wholly obscure, the 
petioles 1-2 mm. long, uppermost leaves ovate, 2-3 cm. long; 
raceme short, several-many-flowered ; pedicels rather stout, thick- 
ened upward, I-1.5 cm. long; sepals suborbicular, rounded ; co- 
rolla-bud rounded; sterile pedicels incurved, 1 cm. long or less; 
bracts galeate, compressed, 6 mm. broad. 
Limestone cliffs, Bafios San Vicente, Pinar del Rio (Britton 
& Gager 7412). 
Family THEACEAE 
Haemocharis benitoensis Britton & Wilson, sp. nov. 
_A straggling shrub, 1-2 m. high, with slender branches, the 
twigs pilose with appressed hairs; leaves obovate, 3-5 cm. long, 
