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 

 45-55 m - altitude (Shafer 3869). 



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, 1 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, Banos 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, 



