Koellensteinia florida (Rchb.f.) Garay (1973: 53)

Thiago E. C. Meneguzzo, José F. A. Baumgratz & Cássio Van Den Berg, 2015, Taxonomic studies in the Aganisia complex (Orchidaceae, Zygopetalinae), Phytotaxa 238 (1), pp. 1-39 : 18-19

3.4. Koellensteinia florida (Rchb.f.) Garay (1973: 53) .

Promenaea florida Reichenbach (1863a: 12) . Type:—BRAZIL. S.loc., s.d., Schiller s.n. (lectotype, designated here, W-R 38113!). Fig. 6 D,E

Koellensteinia altissima Pabst (1962: 45) . Koellensteinia altissima Pabst (1963: 145) , nom. illeg. Type: — BRAZIL. Bahia: Porto Seguro, September 1961, Duarte s.n. (holotype HB 19719!), syn. nov.

Koellensteinia colnagoi Ruschi (1974: 1) .Type: — BRAZIL. Espírito Santo: Serra Jarareipe, 14 April 1974, Colnago s.n. (holotype MBML 1996 not found; the lectotype, designated here, is the original illustrations of the same specimen deposited at the library of Museu de Biologia Professor Mello Leit"o and published in the protologue by Ruschi 1974: 2–3, t. 1–2), syn. nov.

Koellensteinia abaëteana Queiroz (1987: 21) . Type: — BRAZIL. Bahia: Salvador, Dunes of Itapo", near Lake Abaeté, 6 May 1979, Noblick 1298 (holotype ALCB 963!), syn. nov.

Etymology:— From Latin, floridus, covered in flowers.

Selected material examined:— BRAZIL. Bahia: Camacan, 10 April 1965, Belém & Magalhães 760 (CEPEC, IAN, UB); Ilhéus, 9 November 2014, Meneguzzo et al. 816 (RB). Espírito Santo: Conceiç"o da Barra, 18 September 1999, Fraga 540 (MBML); Linhares, 13 June 1994, Folli 2330 (CVRD, SEL).

Distribution: —Northestern and southeastern Brazil: Bahia, Espírito Santo. TDWG code: 84 BZE-BA BZL-ES.

Diagnostic characters:— Koellensteinia florida and K. spiralis are closely related species and differ from other species of the genus in being large-sized plants (50–90 cm tall) with short secondary racemes and solitary flowers appearing in sequence. Koellensteinia florida differs from K. spiralis in its upright inflorescence vs. spiral, secondary racemes close to distal part vs. along all of it with a lip with lateral lobes and midlobe obtuse vs. oblong.

Nomenclatural notes:— At RB there are two sheets of Koellensteinia altissima misidentified as isotypes (RB 118350). They are from the same locality and have same collector as the holotype, but they do not agree with collection date of the protologue and holotype (September 1962 in the protologue vs. October 1963 in the specimens), and in being from a cultivated specimen.

MBML had a considerable number of specimens that were lost in a flood on 18 December 2000. As the holotype of Koellensteinia colnagoi was neither found in the pressed marterial nor in the spirit collection, it can be considered lost. Therefore, we selected as lectotype a surviving original illustration in the archives of the same institution.

Figures

FIGURE 6. A. Koellensteinia carraoënsis. B. Koellensteinia graminea. C. Koellensteinia hyacinthoides. D. Koellensteinia florida, plant in situ. E. Manually opened flower of K. eburnea. F. Flower. G. Plant in situ. H. Koellensteinia tricolor. A – C. By K. Senghas, available through Swiss Orchid Foundation at Herbarium Jeny Renz. D – E. Meneguzzo 861 (RB). F – G. Meneguzzo 973 (RB). D – G. By Thiago E. C. Meneguzzo. H. Pessoa 1152 (RB), by Edlley M. Pessoa.