Name:		Segestria Fr., (1825) page 263 [basionym]
Accepted name:		Pertusaria DC.
Status:		Genus, lichen-forming
Taxonomic position:		Pertusariaceae Körb. ex Körb. [Family] Pertusariales M. Choisy ex D. Hawksw. & O.E. Erikss. [Order] Ostropomycetidae Reeb, Lutzoni & Cl. Roux [Subclass] Lecanoromycetes O.E. Erikss. & Winka [Class] Pezizomycotina O.E. Erikss. & Winka [Subdivision / Subphylum] Ascomycota Caval.-Sm. [Division / Phylum] Fungi R.T. Moore [Kingdom]
Constituent taxa:		Species Segestria acrocordioides Zahlbr. Segestria aenea Wallr. Segestria affinis (A. Massal.) Zwackh Segestria ahlesiana Körb. Segestria albiascens (Nyl.) Hellb. Segestria albinula (Müll. Arg.) Hellb. Segestria austriaca (Körb.) Zahlbr. Segestria barbara Th. Fr. Segestria beloniella (Nyl.) Blomb. & Forssell Segestria byssophila (Körb.) Zahlbr. Segestria carpinea (Pers.) Dalla Torre & Sarnth. Segestria chlorotica (Ach.) Hellb. Segestria cinereonigrescens (Stirt.) Hellb. Segestria cognata (Arnold) Dalla Torre & Sarnth. Segestria consociata Zwackh Segestria contribulans (Nyl.) Blomb. & Forssell Segestria declivum (Bagl. & Carestia) Dalla Torre & Sarnth. Segestria decolorella (Nyl.) Blomb. & Forssell Segestria desquamescens (Fée) Hellb. Segestria discolor Trevis. Segestria emiscens (Nyl.) Hellb. Segestria erysiboda (Taylor) Trevis. Segestria faginea (Trevis.) Zwackh Segestria furvescens (Nyl.) Blomb. & Forssell Segestria glaucocinerea (Nyl.) Blomb. & Forssel Segestria graeweana (Blomb. ) Blomb. & Forssell Segestria heterochroa (Mont.) Trevis. Segestria indutula (Nyl.) Hellb. Segestria interjungens (Nyl.) Blomb. & Forssell Segestria koerberi (Flot.) Hellb. Segestria lamprocarpa (Stirt.) Hellb. Segestria lectissima Fr. Segestria leptalaeoides (Nyl.) Blomb. & Forssell Segestria leptalea (Durieu & Mont.) R.C. Harris Segestria leptaleina (Nyl.) Hellb. Segestria leptostegia (C. Knight) Hellb. Segestria leptotera (Nyl.) Blomb. & Forssell Segestria macrocarpa Segestria macularis (Wallr.) Zwackh Segestria mammillosa Th. Fr. Segestria massalongiana (Hepp) Trevis. Segestria mastoidea (Ach.) Hellb. Segestria metabletica (C. Knight) Hellb. Segestria morbosa (Arnold) Dalla Torre & Sarnth. Segestria muscorum (Hepp) Trevis. Segestria myricae (Nyl.) Blomb. & Forssell Segestria nigratula (Nyl.) Blomb. & Forssell Segestria nucula (Ach.) Hellb. Segestria octomera (Müll. Arg.) R.C. Harris Segestria persicina Körb. Segestria porinoides (Mont.) Trevis. Segestria porphyria Riehm. Segestria pupula (Ach.) Trevis. Segestria retifera (Stirt.) Hellb. Segestria retrospiciens (Stirt.) Hellb. Segestria rubentior (Stirton) R.C. Harris Segestria rubra (Sommerf.) Fr. Segestria sabuletorum (Fr.) Trevis. Segestria saxicola (C. Knight) Hellb. Segestria septemseptata Hepp ex Zwackh Segestria sphaeroides Zwackh Segestria spilophaena (Kremp.) Hellb. Segestria subarticulata (Arnold) Dalla Torre & Sarnth. Segestria subsimplicans (Nyl.) Hellb. Segestria thelostoma (Ach. ex J. Harriman) Fr. Segestria triblasta (Müll. Arg.) Hellb. Segestria umbonata Schaer. Segestria zwackhii (Hepp) Trevis.
Cybertruffle Resources:		Cyberliber Cumulative Index
Links:		Fungal Databases [Systematic Botany and Mycology, USDA] Genbank Google images IMI [CABI Fungus Dried Reference Collection] Index Fungorum Landcare [New Zealand] Mycobank New York Botanic Garden [Virtual Fungus Dried Reference Collection]