Jennings: Contribution to Botany of Isle of Pines. 205 



Family MELASTOMACE^. 

 Key to the Species Enumerated. 

 Small herbaceous annual? with partly long-spurred anthers. 



516. Acisanthera glandulifera. 

 Woody, at least at the base. 



Low plants with a woody base and narrow leaves less than 2 cm. long. 



Calyx-lobes obtusish, ovate-subrotund 514. Chcetolepis saturioides. 



Calyx-lobes acuminate, ciliate, oblong-lanceolate.. .515. Chcetolepis cubensis. 

 Shrubs or trees; leaves more than 2.5 cm. long. 



Leaves with white to brownish, stiff hairs 1-3 mm. long. 



Long hairs apically reddish-glandular; spur produced from back of 



calyx-lobe considerably below the apex 528. Clidemia hirta. 



Long hairs only occasionally glandular; spur on back of calyx-lobe very 



close to the apex 529. Clidemia strigillosa. 



Leaves not as above. 



Leaves essentially glabrous. 



Calyx-lobes prominently tuberculate near their apex; leaves 2.5-5 

 by 5-12 cm. 

 Calyx 7-8 mm. long; largest leaves on flowering shoots lance- 

 ovate, at least 10-13 cm. long.. .526. Pachyanthus longifolius. 

 Calyx 5-6 mm. long; largest leaves on flowering shoots usually 



less than lo cm. long, ovate 527. Pachyanthus ovatus. 



Calyx-lobes none or very small, not tuberculate. 



Leaves about i 1.5 by 20-30 mm., sessile, more or less yellow 



beneath 519. Tamonea androscemifolia. 



Leaves about 10-15 cm. by 2-3.5 cm., distinctly petioled, whitish 



beneath 517. Tetrazygia bicolor. 



Leaves ovate or oval-oblong, 5-10 cm. long, very shortly petioled. 



523. Tamonea Wrightii. 

 (See also 524. Tamonea prcecox). 



Leaves not as above 530. Osscea macrandra. 



Leaves stellate-pubescent (or simply pubescent). 



Leaves attenuate into a margined petiole.. . .520. Tamonea prasina. 

 Leaves not thus attenuate at base. 



Leaves up to 3 dm. or more long, elliptic to obovate, acuminate, 



petiole short or almost none 521. Tamonea impeliolaris. 



Leaves much shorter, broadly ovate, distinctly petioled. 



Margins of leaves closely and finely denticulate, blades more 

 or less brownish beneath, flowers pinkish. 



518. Tamonea tomentosa var. auriculata. 

 Margins entire, usually closely revolute. 



Flowers orange; leaves rounded at apex, at maturity 

 smooth and lustrous above.. .525. Pachyanthus cubensis. 

 Flowers light yellow; leaves bluntly acute, dull, stellate- 

 pubescent and more or less yellowish above. 



522. Tamonea delicatula. 



