Two new pinicolous Arthonia (Arthoniaceae; Arthoniomycetes) from the Delmarva Peninsula of the Atlantic Coastal Plain in eastern North America

James C. Lendemer; David Ray

doi:10.1639/0007-2745-120.1.011

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James C. Lendemer,^1,* David Ray²

¹1 Institute of Systematic Botany, The New York Botanical Garden, Bronx, NY 10458-5126, U.S.A.
²2 The Nature Conservancy, MD/DC Chapter, Salisbury, MD 21804, U.S.A.

^* Corresponding author's e-mail: jlendemer@nybg.org

Abstract

Two new non-lichenized Arthonia are described from the branches and wood of pine trees (Pinus spp.) in the Coastal Plain of southeastern North America. Arthonia samdykeana is a characterized by its lack of photobiont, large irregularly shaped ascomata, and 6–9(–10–12)-celled ascospores that are macrocephallic. Arthonia gutberletiana is characterized by its lack of photobiont, black circular apothecia with persistent margins, hyaline 2-celled ascospores and occurrence on pine wood.

Citation Download Citation

James C. Lendemer and David Ray "Two new pinicolous Arthonia (Arthoniaceae; Arthoniomycetes) from the Delmarva Peninsula of the Atlantic Coastal Plain in eastern North America," The Bryologist 120(1), 11-18, (14 February 2017). https://doi.org/10.1639/0007-2745-120.1.011

Received: 7 November 2016; Accepted: 1 January 2017; Published: 14 February 2017

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