Notes on neotropical Malpighiaceae III

Like the preceding papers in this series, this one is a miscellany of new species, plus one variety raised to the status of species. The accelerating efforts of collectors throughout Latin America continue to yield novelties in this family, faster than I can find time to studv and describe them. Acmanthera fernandesii W. R. Anderson, sp. nov. Fig. 1. Arbor parva, ramis vegetativis appresso-tomentosis. Folia subsessilia, petiolo ca 1mm longo; foliorum majorum lamina 11.3 cm longa,6.B cm lata, ovata, basi cordata, apice obtusa, utrinque brunneo-tomentosa tortuosis; stipulae 2.8 cm longae, tomentosae, vagina stipulacea complanata, in sectione transversali angustissime elliptica. Bracteae 0.7-7.2 (-2) mm longae lataeque, triangulares, planae, glabrae, membranaceae; bracteolae minutae. Sepala abaxialiter appressotomentosa. Petala alba, limbo 5-5.5 mm longo, 5.5-6 mm lato. Antherae loculis 1.3-1.6 mm longis, alis 1.4-1.8 mm longis,0.4-0.5 mm latis, appendicula apicali 0.4 mm longa, plana, membranacea, eglandulosa. Styli ca 5.5 mm longi. Small tree; vegetative stems densely and persistently appressed-tomentose, the initially ferrugineous hairs fading to gray, eventually abraded; stems glaucous under vesture, the glaucescence eventually abraded. Leaves fairly densely tomentose on both sides, the hairs mostly strongly twisted and kinky, brown fading to white, deciduous above, persistent or eventually patchily deciduous below; lamina of larger leaves 11.3 cm long,6.B cm wide, ovate, cordate at base, obtuse to almost rounded at apex, with a brownish or reddish marginal band ca 1.5 mm wide and ca 13 lateral veins, the white veins and reticulum more visible above than below; petiole ca 1 mm long, persistently tomentose; stipules 2.8 cm long, densely and persistently tomentose, the 4 at a node completely connate to form a singlc strongly flattened sheath linear-elliptical in cross section. Inflorescence 12-13 cm long, densely and persistently sericeous or appressed-tomentose; internode below inflorescence 4.5-6 cm long, appressed-tomentose, bearing at its apex a pair of leaves 6.5 cm long,3.5 cm wide; flowers borne singly on the pseudoraceme, i.e., 1 per bract; bracts 0.7-I.2 (-Z) mm long and wide, triangular, nearly flat, glabrous, membranous, persistent or deciduous; bracteoles like bracts but much smaller, up to 0.5 mm long; pedicel 9-11 mm long, densely and persistently appressed-tomentose. Sepals already separated in young bud, leaving petals exposed during enlargement of bud; sepals 2-2.5 mm long beyond glands, 3-3.2 mm wide, broadly orbicular, broadly rounded at apex, abaxially densely appressed-tomentose or subsericeous except for a glabrous area within ca 0.5 mm of apex, membranous at margin, adaxially glabrous, revolute in anthesis; glands 1.7-2.2 mm long, not revolute at apex. Petals white, sparsely appressed-tomentose abaxially in center of limb; claw 2 mm long; limb 5-5.5 mm long,5.5-6 mm wide, shallowly concave, roughly orbicular, denticulate, eglandular;4lateral petals spreading to reflexed, posterior erect;poste