Pabstiella gossameri Luer & Toscano (2011: 373)

Morales, Nicolás Gutiérrez, Brito, A. L. V. Toscano De, Restrepo, Eugenio, Gil-Amaya, Karen & Smidt, Eric De Camargo, 2025, Contributions to the knowledge of Pabstiella (Orchidaceae: Pleurothallidinae) from Brazil: A new species, new synonyms and taxonomic notes, Phytotaxa 696 (2), pp. 145-157 : 154

5. Pabstiella gossameri Luer & Toscano (2011: 373)

( Figure 6B )

Type: — BRAZIL. Bahia: Itabuna , flowered in cultivation in São Paulo, 28 February 2004, E. Bohnke s.n. (holotype: HUEFS 187221 ! in spirit).

= Pabstiella isabelae Chiron & Ximenes Bolsanello (2012: 110) , syn. nov.

Type: — BRAZIL. Espírito Santo: Alfredo Chaves, Maravilha , Alto Maravilha , 990 m, 2010, G. Chiron 12009 & F. Tesch (holotype: MBML 47125 !).

Taxonomic Discussion: —Only known from a cultivated specimen from Bahia, Pabstiella gossameri is a very small species, poorly represented in herbarium collections. The type specimen is a spirit collection at HUEFS. The original drawing represents a plant with a single flower supported by a drooping pedicel and a vestigial bud, likely of a second flower, as mentioned by C. Luer. On the other hand, Pabstiella isabelae , described a year later from Espírito Santo, represents an equally small species with long-pedicellate flowers. Both share a very similar perianth, but differing in the number and position of the flowers, as well as in some details of the lip. A revision of both type specimens, along with an examination of cultivated plants may clarify these differences. The plant that C. Luer used for his drawing was still developing its inflorescence, whereas the adult form of the species is better represented in Chiron´s drawing of P. isabelae . The lip is more accurately depicted in Luer’s drawing, as Chiron omitted the pair of calli in the middle third, which are obscure and imperceptible in this species. Flowers may vary from orange to pale yellow, with dark purple to maroon stripes.

Figures

FIGURE 6. A. Pabstiella garayi based on N. Gutierrez 344 (UPCB 110456). B. Pabstiella gossameri based on A.L.V Toscano de Brito 3373 (UPCB 83317). C. Pabstiella savioi based on N. Gutierrez 119 (UPCB 110389). Photos by N. Gutiérrez Morales (A, C) and Wade Collier (B).