Yerba De Guava

Tontanea herbacea (Lam.) Standley
Coccocipsilum herbaceum Lam. Encyc. 2: 56. 1786. Coccocipsilum re pens Sw. Prodr. 31. 1788.
Stems stout or slender, densely pilose when young with short or long, appressed or ascending hairs; stipules linear-subulate, 2-6 mm. long; petioles usually slender, 0.4-2.5 cm. long, densely pilose with short or long, ascending or appressed hairs; leaf-blades broadly ovate, ovate-oblong, or oblong, 1.8-5 cm. long, 0.8-3 cm. wide, rounded or obtuse at the base, often short-decurrent, obtuse or acutish at the apex, sparsely or densely pilose above with short appressed yellow hairs, paler beneath, short-pilose, often densely so, with subappressed, mostly yellow hairs; heads usually sessile, sometimes partly short-pedunculate, mostly 2-3flowered; bracts linear-subulate, 3-4 mm. long; calyx and hypanthium densely appressedpilose, the calyx-lobes linear-subulate, 2-3 mm. long, twice as long as the hypanthium or longer; corolla blue, 5-7 mm. long, short-pilose, the lobes lance-oblong, obtuse or acute, about half as long as the tube; fruit 5-6 mm. in diameter, bright-blue, short-pilose; seeds dark-brown, about 1.2 mm. broad.
Type locality: Jamaica.
Distribution: Greater Antilles; Guatemala to Colombia.

Tontanea tenuis (Urban) Standley
? Coccocipsilum pseudotontanea Griseb. Fl. Brit. W. Ind. 322. 1861. Coccocipsilum tenue Urban, Repert. Sp. Nov. 13: 479. 1915.
Stems slender, pilose when young with short, appressed or ascending hairs; stipules linearsubulate, 1-3 mm. long; petioles slender, 4-13 mm. long, pilose like the stems; leaf-blades ovate, rounded-ovate, oblong-ovate, or oblong, 1.5-4 cm. long, 0.8-2.2 cm. wide, rounded or subtruncate at the base, often abruptly short-decurrent, acute or obtuse at the apex, often apiculate, appressed-pilose with short hairs, or the pubescence spreading beneath; heads 2-3-flowered, on peduncles 0.3-2.4 cm. long; bracts linear, 3-4 mm. long; calyx and hypanthium densely short-pilose, the calyx-lobes linear, acute, 2-4 mm. long, more than twice as long as the hypanthium; corolla 5 mm. long, short-pilose, the lobes lance-triangular, half as long as the tube; fruit short-pilose, 3-6 mm. in diameter.
Type locality: Jamaica.
Distribution: Eastern Cuba, Jamaica, and Trinidad.