Unpublished Notes on the Species of Malpighiodes
W. R. Anderson, June 2008

Malpighiodes bracteosa (Griseb.) W. R. Anderson—Vicinity of Manaus, Amazonas, Brazil. Petiole persistently golden-sericeous, bearing (0–) 2–4 (–8) small impressed glands; lamina sericeous above to soon glabrate or the midrib sericeous, moderately to thinly but persistently sericeous below with the hairs sessile, straight, and appressed, bearing few to many small glands in 1–3 rows between margin and midrib; inflorescence axes golden-sericeous, the flowers borne ultimately in umbels or corymbs of 4 (–8); bracts and bracteoles abaxially densely sericeous and adaxially thinly sericeous, the bracteoles borne at apex of peduncle or somewhat below; filaments abaxially sparsely sericeous; mericarps lacking membranous wings, the large nut bearing instead coriaceous or corky crests or winglets 2–5 mm high or wide.

Malpighiodes guianensis (W. R. Anderson) W. R. Anderson—Guyana, Suriname, and French Guiana. Petiole appressed-tomentose, usually biglandular near middle; lamina tomentose to eventually glabrate above, densely and persistently tomentose below, often bearing several small glands in a row set in from margin; inflorescence axes golden- or white-tomentose, the flowers borne ultimately in pairs or umbels of (3–) 4; bracts tomentose on both sides; bracteoles tomentose on both sides or subglabrate above, borne at or below apex of peduncle; filaments abaxially sparsely sericeous; samara 2.3–3.5 cm high, 2.5–4 cm wide, the lateral wing membranous.

Malpighiodes leucanthele (Griseb.) W. R. Anderson—Upper Rio Negro and Rio Uaupés, Amazonas, Brazil. Petiole tomentose to glabrate, eglandular; lamina tomentose or hispid to soon glabrate on both sides or thinly hispid below with stalked T- or Y-shaped hairs, bearing several tiny glands in a row set well in from the margin; inflorescence axes white-tomentose, the flowers borne ultimately in pairs; bracts and bracteoles tomentose on both sides, the bracteoles borne at apex of peduncle; filaments glabrous; samara ca. 3–4 cm high and 4 cm wide, the lateral wing membranous.

Malpighiodes liesneri (W. R. Anderson) W. R. Anderson—Amazonas, Venezuela. Petiole persistently golden-sericeous, eglandular or bearing 2 small impressed glands, usually in the distal half; lamina initially sericeous but soon glabrate above, persistently thinly sericeous to eventually glabrate below with the hairs sessile, straight, and appressed, eglandular or bearing several tiny glands in a row set well in from the margin; lateral axes of inflorescence densely sericeous or tomentose-sericeous with mostly white hairs, the flowers borne ultimately in pairs with usually 2–3 pairs congested to form umbels or corymbs; bracts and bracteoles densely and persistently white-tomentose on both sides, the bracteoles borne at apex of peduncle; filaments abaxially sericeous on proximal half; fruit unknown.