92 BRITTON: CUBAN PLANTS NEw TO SCIENCE 
shining, ovate to elliptic, 1-2.5 cm. long, acute or acuminate at 
the apex, mostly narrowed at the base, 3-nerved, the lateral veins 
arising just above the base, the secondary venation indistinct, 
glabrous on both sides when old, except for a tuft of short hairs 
in the axils of the lateral veins; flowers 5-parted, solitary or 2 
together at the end of a peduncle, 1-1.5 cm. long; pedicels fili- 
form, 5-10 mm. long; calyx-tube terete, subcampanulate, 5 mm. 
long, its 5 subulate teeth 2-2.5 mm. long; anthers a little shorter 
than the filaments; petals white, obovate, obtuse, 7-8 mm. long; 
fruit black, subglobose, about 6 mm. in diameter. 
Rocks, vicinity of Sumidero, Pinar del Rio. Type from 
Sierra Caliente (Shafer 13770). 
Pachyanthus Clementis P. Wilson, sp. nov. 
A shrub with densely ferruginous twigs and _ branches. 
Leaves ovate-lanceolate, g-12 cm. long, 3.5-4.5 cm. broad, gla- 
brous or nearly so above, pubescent beneath with stellate hairs, 
cordate at the base, acuminate at the apex, coriaceous, petioled, 
3-5-nerved, the veins and lateral nerves prominent beneath, 
slightly impressed above; inflorescence peduncled; calyx urn- 
shaped, 7-8 mm. long, 4-5 mm. broad, densely pubescent with 
rather long shaggy hairs, the lobes long-acuminate. 
Loma Los Helechales, Banao Mountains, Santa Clara (Léon 
& Clement 5399). 
Pachyanthus mantuensis Britton & Wilson, sp. nov. 
A shrub 1 m. high or less, the branches, twigs and calyx 
densely scurfy with brownish stellate scales. Leaves 4-8 cm. 
long, 2-3.6 cm. broad, elliptic to elliptic-ovate, obtuse at the apex, 
rounded and subcordate at the base, yellowish green, punctate 
and glabrous or nearly so above, slightly paler and scurfy espe- 
cially on the veins beneath, coriaceous; pedicels 1-1.5 cm. long; 
calyx urn-shaped, the lobes with a short keel on the back near the 
apex; petals ovate-oval to oval, 12 mm. long, 7-8 mm. broad, 
rounded at the apex, puberulent. 
Dry prairie land, between Guane and Mantua, Pinar del Rio 
(Shafer 11229). 
Ossaea Shaferi Britton & Wilson, sp. nov. 
A shrub 1-2 m. high, with densely hirsute twigs, leaves and 
inflorescence. Leaves ovate to ovate-lanceolate, 4-9 cm. long, 
5-nerved, acute or acuminate at the apex, rounded or obtuse at 
the base, the upper surface densely and finely tuberculate, each 
