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Six new apotheciate species of Sticta (lichenized Ascomycota: Lobariaceae) from the Colombian Andes

Published online by Cambridge University Press:  23 August 2013

Bibiana MONCADA
Affiliation:
Licenciatura en Biología, Universidad Distrital Francisco José de Caldas, Cra. 4 No. 26B-54, Torre de Laboratorios, Herbario, Bogotá, Colombia
Robert LÜCKING*
Affiliation:
Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605-2496, USA. Email: rlucking@fieldmuseum.org
Luis Fernando COCA
Affiliation:
Herbario (FAUC), Edificio Bicentenario, Universidad de Caldas, Calle 65, No. 26-10, Manizales, A.A. 275, Caldas, Colombia

Abstract

As part of a phylogenetic and taxonomic revision of the lichenized genus Sticta in Colombia, six new species with apotheciate thalli but lacking vegetative propagules are described: Sticta atroandensis Moncada & Lücking sp. nov., S. brevior Moncada & Lücking sp. nov., S. lumbschiana Moncada & Lücking sp. nov., S. macrocyphellata Moncada & Coca sp. nov., S. parahumboldtii Moncada & Lücking sp. nov., and S. pseudohumboldtii Moncada & Lücking sp. nov. The last two are related to S. humboldtii but phylogenetically distinct and differ in details of cyphellae morphology and spot reactions. Sticta atroandensis is similar to S. andensis but has a dark lower tomentum, whereas S. brevior belongs in the S. kunthii group, being characterized by mainly laminal apothecia with tomentose margins and a rather stout thallus. Both S. lumbschiana and S. macrocyphellata form part of the S. dilatata group and can be characterized by their lobe surface structure and cyphellae anatomy. Keys to species of the S. dilatata and S. humboldtii groups are presented.

Type
Articles
Copyright
Copyright © British Lichen Society 2013 

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