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| Tillandsia alcatrazensis Sabino & Leodegario, in Sabino, Leodegario, Marcusso, Shimizu, Koch, Tavares et Pinheiro, 2023. |
Abstract
Based on recent field work on an insular granitic outcrop in southeast Brazil, a new Tillandsia species was collected and described here. Tillandsia alcatrazensis belongs to T. subg. Anoplophytum and is morphologically similar to T. geminiflora, from which it differs by the larger size of the whole plant in flower, larger floral bracts and longer flowers with reddish-salmon sepals and white petals, and longer styles. We present a diagnosis, description, color photographs, illustration, ecological, and phenotypical variation comments, and compares it with the morphologically related species. Tillandsia alcatrazensis is preliminarily classified as Critically Endangered (CR) due to its small and restricted distribution, although the Alcatrazes Island is part of a national protected area.
Keywords: Monocots, Atlantic Forest, Bromeliad, conservation, Poales, saxicole
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| Tillandsia alcatrazensis (G.P. Sabino 551). A. Habit. B. Inflorescence branch. C. Floral bract and flower. D. Detail of the lepidote sepal. E. Floral bracts. F. Sepals. G. Petals. H. Stigma. I. Gynoecium. J. Stamen. (Illustration by Danilo Ulbrich Tavares). |
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| Tillandsia alcatrazensis. A. Habit. B. Primary branch (left) and primary branch with a secondary branch (right). C. flower with a floral bract. D. Floral bracts. E. Sepals. F. Petals. G. Stamens. H. Gynoecium. Bars: A = 2 cm; B–C= 1 cm; D= 1 cm; E= 1 cm; F= 1 cm; G, H = 0.5 cm. (Photos by G.P. Sabino based on G.P. Sabino 551, 772). |
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| Tillandsia alcatrazensis phenotypical variation. A–C. Front view of the inflorescences. D–F. Lateral view of the inflorescences. G–I. Habit. Bars: A–F = 1 cm; G–I = 2 cm. Photos by G.P. Sabino based on G.P. Sabino et al. 772 (A,D,G), GPS et al. 773 (B,E,H) and GPS et al. 774 (C,F,I). |
Tillandsia alcatrazensis Sabino & Leodegario, sp. nov.
Gabriel Pavan Sabino, Marcio De Melo Leodegario, Gabriel Mendes Marcusso, Gustavo Hiroaki Shimizu, Ingrid Koch, Danilo Ulbrich Tavares and Fábio Pinheiro. 2023. Tillandsia alcatrazensis (Bromeliaceae), A New endemic Species from Alcatrazes Island in southeastern Brazil. Phytotaxa. 607(3); 213-221. DOI: 10.11646/phytotaxa.607.3.5
