Monographs Details: Declieuxia deltoidea var. perfoliata J.H.Kirkbr.
Authority: Kirkbride, Joseph H., Jr. 1976. A revision of the genus Declieuxia (Rubiaceae). Mem. New York Bot. Gard. 28 (4): 1-87.
Family:Rubiaceae
Description:Latin Diagnosis - A D. deltoidea var deltoidea stipulis 6-7-dentatis, 0.8-1 x ca 0.5 mm, foliis conato-perfoliatis differt.

Discussion:Types: Brazil, Minas Gerais, ca 37 km NE of PatrocĂ­nio, Morro das Pedras, 1000 m, 29 Jan 1970, Irwin, Onishi, da Fonseca, Souza, Reis dos Santos, Ramos 25590 (holotype UB; isotypes C, F, G, K, LIL, NY, RB, US); ca 25 km NE of PatrocĂ­nio, Morro das Pedras, 1050 m, 28 Jan 1970, Irwin, Onishi, da Fonseca, Souza, Reis dos Santos, Ramos 25518a (paratypes F, NY, UB, US). Map 3. Declieuxia deltoidea is most closely related to D. fruticosa. The greatest degree of resemblance is between D. deltoidea var deltoidea and minor variant 6 of D. fruticosa. This strong resemblance might be the result of hybridization. Declieuxia deltoidea is separated from D. fruticosa by its nondecurrent stipules and leaf blades 0.68-0.97 times longer than wide.