A new Vriesea species from Serra do Cipo National Park, Minas Gerais, Brazil.
Serra do Cipo National Park is a 33,800 hectare public conservation unit established on 25 September 1984 by the Federal Decree no 90.223 (official website), located in Minas Gerais State, covering the municipalities of Jaboticatubas, Santana do Riacho, Morro do Pilar and Itambe do Mato Dentro, It is situated in Espinhaco Range, with a predominance of "Campos Rupestres" (grasslands on rocky soils) vegetation. The park shelters a peculiar bromeliad flora, including unusual endemic species originally described from the area (i.e., type locality), including Encholirium heloisae (L. B. Sm.) Forzza & Wand., Orthophytum mello-barretoi L. B. Sm., Vriesea atropurpurea A. Silveira and Vriesea stricta L. B. Sm.
Despite the existence of some specific botanical investigation on the Bromeliaceae in the boundaries of the Serra do Cipo National Park by Wanderley & Martinelli (1987), Forzza & Wanderley (1998) and the master's dissertation conducted by Coffani-Nunes (1997) who listed seven species of Vriesea for the area, there are new taxa yet to be discovered in this conservation unit, as shown by the new species proposed below:
[FIGURE 2 OMITTED]
Vriesea cipoensis O. B. C. Ribeiro, C. C. Paula & E. E. Guarconi, sp. nov. Type: Brazil, Minas Gerais, Jaboticatubas, Serra do Cipo National Park, near the office of IBAMA, saxicolous in quartzite outcrops of Campos Rupestres, 19[degrees]30'48"S 43[degrees]30'40"W, 1.281 m elev. Aug. 2007, O. B. C. Ribeiro 93, C. C. Paula & E. E. Guarconi (Holotype, VIC).
A Vriesea minor (L. B. Sm.) Leme, cui affinis, sed planta florifera breviora, laminis foliorum apicem versus manifeste purpureo-maculatis, inflorescentia breviora, bracteis floriferis altitudinem sepalorum distincte brevioribus, purpureo-maculatis, apice apiculatis, floribus reflexis, appedicibus petalorum subduplo brevioribus differt.
Plant saxicolous, flowering 80-90 cm high; leaves 15 to 20 in number, suberect, forming a broally funnelform rosette; sheaths elliptic, ca. 15 x 10 cm, dark castaneous and minutely brow-lepidote on both sides; blades subligulate, canaliculate, 30-32 x 4-5 cm, yellowish-green, minutely white-lepidote on both sides, densely purple spotted throughout apex apiculate. Scape erect, stout, 70-75 cm long, 0.7-0.8 cm in diameter, distinctly exceeding the leaves; scape bracts the basal ones foliaceous, the upper ones narrowly ovate, 3-4 x 2-3.5 cm, erect and enfolding the scape, distinctly exceeding the internodes, yellowish-green densely purple-spotted, apex apiculate. Inflorescence simple, linear in outline, 15-20 cm long, rachis geniculate, stout, ca. 12 x 0,5 cm, brownish-green, intenodes ca. 0.6 cm, densely flowered, completely covered by a translucent glutinous substance; floral bracts ovate, 15-18 x 12-15 mm, ecarinate, not exceeding 1/2 of sepals length, not completely enfolding the sepals, yellowish-brown at base, brown toward the apex, purple spotted throughout, completely covered by a translucent glutinous substance, apex apiculate; flowers anthesis nocturnal, with a weak odor, distichous, reflexed at anthesis, 40-43 mm long (not including the stamens), pedicels stout, 8-9 x 6-7 mm, green; sepals elliptic, 26-27 x 15-16 mm, free, ecarinate, yellow except for the purple apex an margins, distinctly convex, thinly coriaceous toward the apex, completely covered by a translucent glutinous substance, apex obtuse; petals elliptic, 35 x 17-18 mm, yellow, apex emarginate, forming a campanulate corolla ca. 45 mm in diameter at apex, bearing 2 distinctly triangular appendages ca. 7 x 3 mm; stamens not exceeding the petals, filaments free, subcomplanate, slightly dilated near the apex, pale yellow; anthers linear, fixed near the base, ca. 10 mm long, base sagittate, apex acute; ovary ca. 0.5 x 0.3 mm, white; style pale yellow, exceeding the petals for ca. 4 mm; stigma convolute-bladed, densely papillose, yellow, ca. 1.5 mm in diameter. Capsules unknown.
[FIGURE 3 OMITTED]
[FIGURE 4 OMITTED]
[FIGURE 5 OMITTED]
This new species is morphological related to Vriesea minor. However, V. cipoensis differs from it by the flowering plant shorter (80-90 cm vs. 120-150 cm high), the leaf blades subligulate, canaliculate, yellowish at base and reddish toward the apex, purple spotted, scape bracts yellowish-green, densely purple-spotted, apex apiculate, inflorescence shorter (15-20 mm vs. 20-30 mm long), floral bracts not completely enfolding the sepals, yellowish-brown at base and brown toward the apex, purple-spotted, apex apiculate, about equaling 1/2 of sepals length, distinctly shorter (ca. 15 mm vs. ca. 25mm long), flowers reflexed at anthesis, with a weak odor, shorter (ca. 40 mm vs. ca. 55 mm long), sepals yellow except for the purple apex and margins, petals elliptic, shorter (ca. 7 mm vs. ca. 13 mm long), apex emarginate, and petal appendages triangular.
[FIGURE 6 OMITTED]
Vriesea cipoensis was found growing as a saxicole in association with Velloziaceae species on quartzite outcrops forming a comparatively small remaining population. Its name is an allusion to its typical location.
The authors thank the taxonomist Elton M. C. Leme for help with the identification and Unidade de Pesquisa e Conservacao de Bromeliaceae (UPCB/UFV) for technical support.
Coffani-Nunes, J. V. (1997). Estudo floristico e fenomorfoligico de Tillandsioideae-Bromeliaceae na Serra do Cipo, MG. Instituto de Biociencias. Sao Paulo, Universidade de Sao Paulo. MSc: 132.
Forzza, R. C. and M. G. L. Wanderley (1998). "Pitcairnioideae (Bromeliaceae) na Serra do Cipo, Minas Gerais, Brasil." Boletim de Botanica da Universidade de Sao Paulo 17: 255-270.
Wanderley, M. G. L. and G. Martinelli (1987). Bromeliaceae. Flora da Serra do Cipo, Minas Gerais: caracterizacao e listas das especies. A. M. Giulietti, N. L. Menezes, J. R. Pirani, M. Meguro and M. G. L. Wanderley. Sao Paulo, Boletim de Botanica da Universidade de Sao Paulo. 9: 106-108.
Guia serra do cipo http://www.guiaserradocipo.com.br
Unidade de Pesquisa e Conservacao de Bromeliaceae--UPCB, Departamento de Biologia Vegetal, Universidade Federal de Vicosa, CEP 36570-000, Vicosa, MG, Brazil. email@example.com, firstname.lastname@example.org and email@example.com
|Printer friendly Cite/link Email Feedback|
|Author:||Ribeiro, Otavio B.C.; de Paula, Claudio Coelho; Guarconi, Elidio E.|
|Publication:||Journal of the Bromeliad Society|
|Date:||Jan 1, 2009|
|Previous Article:||Corrections department.|
|Next Article:||Alcantarea mucilaginosa, a new species from Espirito Santo, Brazil.|