Three new species of Fomitiporella (Hymenochaetales, Basidiomycota) based on the evidence from morphology and DNA sequence data Author Ji, Xiao-Hong Author Vlasak, Josef Author Tian, Xue-Mei Author Dai, Yu-Cheng text MycoKeys 2018 30 73 89 http://dx.doi.org/10.3897/mycokeys.30.23109 journal article http://dx.doi.org/10.3897/mycokeys.30.23109 1314-4049-30-73 Fomitiporella mangrovei Y.C. Dai, X.H. Ji & J. Vlasak sp. nov. Figs 5, 6 Holotype . USA. Florida: Collier-Seminole State Park, 28 Aug 2010, on Conocarpus erectus , JV 1008/60 (BJFC). Figure 5. Basidiomata of Fomitiporella mangrovei . Scale bar: 5 cm. Figure 6. Microscopic structures of Fomitiporella mangrovei . a Basidiospores b Basidioles c Basidia d Hyphae from trama. Etymology. Mangrovei (Lat.): referring to the species growing in mangrove. Basidiomata annual, resupinate, inseparable, without odor or taste when fresh, woody hard on drying, up to 30 cm long, 7 cm wide and 5 mm thick at center. Pore surface ash-gray to bluish gray when fresh, becomes pale clay-buff to pale brown and uncracked when dry; pores angular, 3-5 per mm; dissepiments thin, more or less entire to slightly lacerate; tubes woody hard, dark brown, up to 5 mm long. Subiculum very thin to almost lacking. Hyphal structure. Hyphal system monomitic; generative hyphae simple septate; tissue darkening but otherwise unchanged in KOH. Tubes. Generative hyphae hyaline to pale yellowish, thin- to thick-walled with a wide lumen, occasionally branched, frequently simple septate, interwoven, 1.5-3 mm in diam; setae absent; cystidioles absent; basidia barrel-shaped, with four sterigmata and a simple basal septum, 12-15 x 4-6 μm ; basidioles barrel-shaped to pyriform, slightly smaller than basidia in size. Spores. Basidiospores broadly ellipsoid, yellowish-brown, thick-walled, smooth, IKI- , CB+, (5 -)5.5-6(- 6.3) x (4 -)4.2-4.8(- 5) μm , L = 5.82 μm , W = 4.47 μm , Q = 1.26-1.31 (n = 60/2). Additional specimen examined (paratype). FRANCE. Guadeloupe: Grande-Terre, 25 Dec 2012, on Conocarpus erectus , JV 1612/25-J (BJFC).