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Sticta viviana (lichenized Ascomycota: Peltigerales: Lobariaceae), a new species from Colombian paramos

Published online by Cambridge University Press:  25 February 2013

Alejandra SUÁREZ
Affiliation:
Licenciatura en Biología, Universidad Distrital Francisco José de Caldas, Cra. 4 No. 26B-54, Torre de Laboratorios, Herbario, Bogotá, Colombia. Email: alejasuarezco@gmail.com
Robert LÜCKING*
Affiliation:
Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605, USA. Email: rlucking@fieldmuseum.org

Abstract

The new species Sticta viviana A. Suárez & Lücking is described from Colombian paramos. It superficially resembles S. fuliginosa s. str. but differs by the small lobes with a shiny surface, the strongly branched, corymbose isidia, the dark lower tomentum, the smaller, usually sessile and urceolate cyphellae with one papilla-like outgrowth per cell of the basal membrane, and the K+ orange-yellow medulla. In contrast, Sticta fuliginosa s. str., as represented by the type material, a sequenced topotype, and specimens from North America and Colombia falling into the same clade, is defined by an uneven lobe surface, simple to branched but not corymbose isidia, a pale lower tomentum, larger, immersed to erumpent cyphellae, with each cell of the basal membrane having 2–4 papillae, and a K− medulla. The new species is not closely related to S. fuliginosa s. str. but falls within a clade of several, as yet undescribed, species with S. fuliginosa gross morphology.

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Copyright
Copyright © British Lichen Society 2013

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