Guettarda calyptrata A. Rich.

Guettarda calyptrata A. Rich, in Sagra, Hist. Cuba 11:21. 1850
Malthiola calyptrata Kuntze. Rev. Gen. 288. 1891.
A shrub or tree, sometimes 6 meters high, the branches grayish or ferruginous, the branchlets stout, compressed, densely ferruginous-puberulent, the internodes short or elongate; stipules oblong-oval, 10-16 mm. long, obtuse or acutish, mucronate, tomentulose outside and pilose along the costa, deciduous; leaves opposite, the petioles very stout, 2-7 mm. long; leafblades oblong to oval or rounded-ovate, 3.5-13 cm. long, 2-7 cm. wide, rounded or very obtuse at the apex, deeply or shallowly cordate at the base, coriaceous, yellowish-green above, sparsely pilose, especially along the nerves, or glabrate, the costa and nerves prominulous but imbedded, the veins often prominulous, beneath paler, minutely whitish-tomentulose, long-pilose along the nerves with appressed hairs, at least when young, the costa and lateral nerves very prominent, the latter 4-7 on each side, ascending at an acute angle, the basal ones divaricate, the veins usually obscure, the margin plane or subrevolute; cymes subcapitate, 3-flowered, the peduncles 0.3-2.5 cm. long, the flowers sessile, the bractlets filiform, about equaling the calyx; calyx and hypanthium tomentulose and long-pilose, the calyx calyptriform, the upper part circumscissile, the persistent base 4-5 mm. long; corolla white, the tube 2.5-5 cm. long, retrorse-pilose with short whitish hairs, slender, about 3 mm. thick in the throat, the 6 lobes obovate-oblong, 8-10 mm. long, rounded at the apex, glabrous within; fruit globose, 12-18 mm. in diameter, minutely tomentulose, 5-6-celled.
Type locality: Near Canasi, Cuba.
Distribution: Woods and thickets, Cuba and the Isle of Pines.