Monographs Details: Hortia brasiliana Vand. ex DC.
Authority: Odate, T., et al. 2005. A simple method for estimating phytoplankton abundance using a surface seawater monitoring system off Syowa Station during the austral summer. Polar Bioscience. 18: 28-34.

Hortia arborea Engl. in Mart., Fl. bras. 12(2): 183, tab. 38, fig. 2. 1874. TYPE: "in provincia Rio de Janeiro in silvis ad Macahé," no date, Riedel 468 (LECTOTYPE, here designated, K, photo NY neg. 2870; ISOLECTOTYPES, GH, LE-n.v.; photos of destroyed B sheet [F neg. 12493] at F, GH, IAN, MO, NY, SPF); SYNTYPE, "In provincia Rio de Janeiro ad Canta Gallo," no date, Peckolt s.n. (B, destroyed).

Hortia brasiliana is a tree, 4 to 30 m tall. It is the only species of the genus that is found in eastern Brazil, distributed from the states of Pernambuco and Bahia to Rio de Janeiro and Sio Paulo. Along the coast, it grows in the Atlantic Rain Forest and restingas (coastal forest formations on sandy soils near sea level); inland, it inhabits mesophyllous forests of the Planalto and submontane forests of the Espinhaqo range in Minas Gerais and Bahia. It is found at altitudes from 50 m, on the coast, to 1120 m, in the Espinhaqo range. According to Lorenzi (1998), this species is very frequent in the Atlantic Rain Forest in Minas Gerais, principally in the Rio Doce basin. The western limit of this species appears to be the Sio Francisco River.

The syntypes at Berlin (B), on which Engler based his description of Hortia arborea, were destroyed during World War II. Although Engler (1874) cited "Riedel 468" from the locality of Macah6 in Rio de Janeiro, all probable duplicates bear the collector's name, but no collection number nor locality. No duplicates of Peckolt s.n. have been found so far.

Hortia badinii M. A. Lisboa is a name that appears on all specimens at the herbarium OUPR (Universidade Federal de Ouro Preto, Minas Gerais), including Badini s.n. OUPR 7675, and in some publications (Waterman & Grundon, 1983; Correa et al., 1987). This name, according to information from researchers at this herbarium, was used by Lisboa to designate individuals of Hortia with whitish (rather than pinkish) trichomes on the inner surface of the petals. Morphological analyses and field observations of individuals in the vicinity of Mariana, Minas Gerais (where Lisboa s.n., OUPR 26959, designated by Lisboa in schedis as the type of H. badinii, was collected), showed that this species does not merit recognition.

Illustrations.-Engler (1874) and Lorenzi (1998, colored photo), both as Hortia arborea Engl.