BULLETIN THE LICHENS OF DAGNY JOHNSON KEY LARGO HAMMOCK BOTANICAL STATE PARK, KEY LARGO, FLORIDA, USA Frederick Seavey, Jean Seavey, Jean Gagnon, John Guccion, Barry Kaminsky, John Pearson, Amy Podaril, and Bruce Randall Vol. 53, No. 5, pp. 201–268 February 27, 2017 ISSN 2373-9991 UNIVERSITY OF FLORIDA GAINESVILLE The FLORIDA MUSEUM OF NATURAL HISTORY is Florida’s state museum of natural history, dedicated to understanding, preserving, and interpreting biological diversity and cultural heritage. The BULLETIN OF THE FLORIDA MUSEUM OF NATURAL HISTORY is an on-line, open-ac- cess, peer-reviewed journal that publishes results of original research in zoology, botany, paleontology, archaeology, and museum science. New issues of the Bulletin are published at irregular intervals, and volumes are not necessarily completed in any one year. Volumes contain between 150 and 300 pages, sometimes more. The number of papers contained in each volume varies, depending upon the number of pages in each paper, but four numbers is the current standard. Multi-author issues of related papers have been published together, and inquiries about putting together such isues are welcomed. Address all inqui- ries to the Editor of the Bulletin. Cover image: Phaeographis radiata sp. nov.; image taken by Jean Seavey (see p. 230) Richard C. Hulbert Jr., Editor Bulletin Committee Ann S. Cordell Richard C. Hulbert Jr. Jacqueline Miller Larry M. Page David W. Steadman Roger W. Portell, Treasurer David L. Reed, Ex officio Membe ISSN: 2373-9991 Copyright © 2017 by the Florida Museum of Natural History, University of Florida. All rights reserved. Text, images and other media are for nonprofit, educational, and personal use of students, scholars, and the public. Any commercial use or republication by printed or electronic media is strictly prohibited without written permission of the museum. Publication Date: February 27, 2017 This and all other issues of the Bulletin can be freely downloaded at: http://www.flmnh.ufl.edu/bulletin/publication Send communications about this publication to: Editor of the Bulletin; Florida Museum of Natural History; University of Florida; P.O. Box 117800; Gainesville, FL 32611-7800 USA FAX: 352-846-0287; Email: [email protected] URL: https://www.flmnh.ufl.edu/bulletin/hom THE LICHENS OF DAGNY JOHNSON KEY LARGO HAMMOCK BOTANICAL STATE PARK, KEY LARGO, FLORIDA, USA Frederick Seavey1, Jean Seavey1, Jean Gagnon2, John Guccion3, Barry Kaminsky4, John Pearson5, Amy Podaril 6, and Bruce Randall7 ABSTRACT In January, 2015, we conducted a lichen inventory of Dagny Johnson Key Largo Hammock Botanical State Park in Key Largo, Florida. The site was divided into four ecologically different zones which included two coastal hardwood hammocks of different maturities, a disturbed exposed site once probably dominated by pines long extirpated and a fully exposed dwarf mangrove zone interspersed with other non-mangrove species. The mature coastal hammock yielded 172 species dominated by the family Graphidaceae, especially the subfamily Fissurinoideae and the tribe Thelotremateae. The most exposed mangrove site produced only 73 species dominated by the families Arthoniaceae, Physciaceae and Lecanoraceae. The park is also compared to two nearby South Florida preserves, Everglades National Park and Fakahatchee Strand Preserve State Park both of which have had recent lichen inventories. A surprisingly high number of species were found to be unique to each preserve suggesting at least some lichens have difficulty in dispersing themselves sexually or asexually over even moderate distances. Foray participants recovered 323 species including 315 lichenized and 8 lichenicolous fungi. Eighteen lichen species and one lichenicolous fungi are described as new to science: Acanthothecis floridensis F. Seavey and J. Seavey sp. nov. Arthonia pseudostromatica F. Seavey and J. Seavey sp. nov., Coenogonium maritimum F. Seavey and J. Seavey sp. nov., Cryptothecia calusarum F. Seavey and J. Seavey sp. nov., Cryptothecia randallii F. Seavey and J. Seavey sp. nov., Cryptothecia submacrocephala F. Seavey and J. Seavey sp. nov., Enterographa johnsoniae F. Seavey and J. Seavey sp. nov., Enterographa keylargoensis F. Seavey and J. Seavey sp. nov., Fissurina albolabiata F. Seavey and J. Seavey sp. nov., Fissurina incisura F. Seavey and J. Seavey sp. nov., Graphis ferrugineodisca F. Seavey and J. Seavey sp. nov., Graphis koltermaniae F. Seavey and J. Seavey sp. nov., Leiorreuma erodens F. Seavey and J. Seavey sp. nov., Phaeographis pseudostromatica F. Seavey and J. Seavey sp. nov., Phaeographis radiata F. Seavey and J. Seavey sp. nov., Platygramme elegantula F. Seavey and J. Seavey sp. nov., Ramalina ramificansF. Seavey and J. Seavey sp. nov., Stirtonia divaricatica F. Seavey and J. Seavey sp. nov. The lichenicolous fungusEnterographa bagliettoae F. Seavey and J. Seavey sp. nov. is also described as new to science. Furthermore, the following 25 lichens are new to the North American lichen checklist: Arthonia microsperma Nyl., Arthonia hypochniza Nyl., Bacidiopsora orizabana (Vain.) Kalb, Baculifera micromera (Vain.) Marbach, Chapsa boninensis (Tat. Matsumoto) Rivas Plata and Mangold, Chapsa paralbida (Riddle) Rivas Plata and Lücking,Chapsa phlyctidioides (Müll. Arg.) Mangold, Coenogonium pyrophthalmum (Mont.) Lücking, Aptroot and Sipman,Graphis bungartzii Barcenas-Peña, Lücking, Herrera-Campos and R. Miranda, Graphis elongata Zenker, Graphis perstriatula Nyl., Graphis pseudoserpens Chaves, Lücking and Umaña, Leucodecton compunctum (Ach.) 1South Florida Natural Resources Center, Everglades National Park, Homestead, FL, USA 33034 <[email protected]> 2Ministère des Forêts, de la Faune et des Parcs, Direction des parcs nationaux 675, boul. René-Lévesque Est, 4e étage, boîte 21, Québec, Québec, Canada GIR 5V7 <[email protected]> 310313 Dickens Ave., Bethesda, MD USA 20814 <[email protected]> 4Fungal Herbarium, 2529 Fifield Hall, University of Florida, Gainesville FL, USA 32611-0180 <[email protected] 516623 Jesup Street, Indianola, IA 50125 USA <[email protected]> 63000 Grand Ave. #301, Des Moines, IA 50312 USA <amy@podaril,org> 711688 Petersburg Pike, Upper Tract, WV 26866 USA <[email protected]> Seavey, F., J. Seavey, J. Gagnon, J. Guccion, B. Kaminsky, J. Pearson, A. Podaril, and B. Randall. 2017. The lichens of Dagny Johnson Key Largo Hammock Botanical State Park, Key Largo, Florida, USA. Bulletin of the Florida Museum of Natural History 53(5):201–268. 202 BULLETIN FLORIDA MUSEUM NATURAL HISTORY VOL. 53(5) A. Massal., Leucodecton fissurinu (Hale) A. Frisch, Malmidea cineracea Bruess and Lücking, Mazosia viridescens (Fèe) Aptroot and M. Cáceres, Monoblastiapalmicola Riddle, Mycomicrothelia apposita (Nyl.) D. Hawksw., Pertusaia rigida Müll. Arg., Pertusaria subrigida Müll. Arg., Phaeographis dividens (Nyl.) Kr. P. Singh and Swarnalatha, Phaeographis quadrifera (Nyl.) Staiger, Phyllopsora glaucescens (Nyl.) Gotth. Schneider, Stigmatochroma gerontoides (Stirton) Marbach, Stirtonia alba Makhija and Patw., as well as the lichenicolous fungus Arthonia tavaresii Grube and Hafellner. The following keys are provided: updated key to Florida Graphis; North American key to Phaeographis; corrected Neotropical key to Stirtonia, and a world key to Platygramme. In the updated Graphis key Graphis chlorotica A. Massal. is replaced by G. subtenella Müll. Arg. based upon a review of G. chlorotica type material in a recently published manuscript. Therefore, we recommend replacing G. chlorotica with G. subtenella on the North American lichen checklist. Key words: new species; Key Largo, Florida; Dagny Johnson; lichen inventory; lichen identification; lichen photos; biodiversity. TABLE OF CONTENTS Introduction ...........................................................................................................202 Materials and Methods ..........................................................................................203 Results and Discussion .........................................................................................209 Descriptions and Photographs of New Species ....................................................214 Annotated Checklist ..............................................................................................234 Key to the Genus Graphis Adan. in Florida, USA ...............................................248 Key to North American Phaeographis .................................................................252 World Key to Platygramme ..................................................................................254 Neotropical Key to Stirtonia .................................................................................256 Acknowledgements ...............................................................................................257 Literature Cited .....................................................................................................257 Supplementary Photographs of Lichen Species New to North America or Otherwise Interesting Taxa .....................................................................263 INTRODUCTION (Frisch and Thor, 2010; Rivas Plata and Lücking, It has been only in recent times that the richness 2013; Lücking et al., 2014; Ertz el al., 2015). of lichen flora in tropical and subtropical latitudes Climatic factors are probably the main impetus for has been recognized (Cáceres et al., 2008, 2014; this phenomenon as these parts of the world lack Lücking et al., 2011; Seavey and Seavey, 2012,