Phylogeny and diversity of Haploporus (Polyporaceae, Basidiomycota) Author Zhou, Meng Author Wang, Li Author May, Tom W. Author Vlasak, Josef Author Chen, Jia-Jia Author Dai, Yu-Cheng text MycoKeys 2019 54 77 98 http://dx.doi.org/10.3897/mycokeys.54.34362 journal article http://dx.doi.org/10.3897/mycokeys.54.34362 1314-4049-54-77 Haploporus pirongia (G. Cunn.) Meng Zhou, Y.C.Dai&T.W. May comb. nov. Figs 10, 11 Poria pirongia G. Cunn., Bull. N.Z. Dept. Sci. Industr. Res., Pl. Dis. Div. 72: 39 (1947) (Basionym) Etymology. the epithet pirongia, derived from the type locality, Mount Pirongia, is a noun in apposition, and therefore remains spelt the same when transferred from Poria to Haploporus , despite the latter genus being masculine in gender. Fruitbody. Basidiocarps annual, resupinate, difficult to separate from the substrate, soft corky when fresh, corky upon drying, odor- or tasteless when fresh, up to 8 cm long, 2 cm wide and 1.7 mm thick at center. Pore surface white to cream when fresh, pale brownish when bruised, pinkish buff to clay-buff upon drying; sterile margin very narrow to almost lacking; pores round to angular, 3-4 per mm; dissepiments thick, entire. Subiculum cream, corky, thin, about 0.3 mm thick. Tubes light buff, corky, about 1.4 mm long. Hyphal structure. Hyphal system trimitic: generative hyphae bearing clamp connections, hyaline, thin-walled, frequently branched; skeletal hyphae dominant, thick-walled to subsolid, hyaline to slightly yellowish, frequently branched; binding hyphae abundant, slightly thick-walled, IKI- , CB+, tissues unchanging in KOH. Subiculum. Generative hyphae frequent, hyaline, thin-walled, frequently branched, 2.3-3.5 µm in diam; skeletal hyphae dominant, hyaline, distinctly thick- walled with a narrow lumen to subsolid, occasionally branched, interwoven, 2.5-4 µm in diam; binding hyphae abundant, slightly thick-walled,1-2 µm in diam. Tubes. Generative hyphae frequent, hyaline, thin-walled, frequently branched, 1.7-3.5 µm in diam; skeletal hyphae distinctly thick-walled with a narrow to wide lumen, frequently branched, interwoven, 2.5-4 µm in diam; binding hyphae slightly thick-walled,1-2.5 µm in diam. Cystidia absent; cystidioles present, fusiform, occasionally with an apical simple septum, sometimes with a few small guttules, 21-28 x 5-7 µm . Basidioles dominant, similar in shape to basidia, but slightly smaller, occasionally with a few large guttules; basidia pear-shaped to barrel-shaped with 4-sterigmata and a basal clamp connection, 21-35 x 8-11 µm . Hyphae at dissepiment usually thick-walled with simple septum. Dendrohyphidia absent. Some irregular-shaped crystals present among tube tramal structures. Spores. Basidiospores oblong-ellipsoid to cylindrical, hyaline, thick-walled, with tuberculate ornamentations, some with a guttule, IKI- , CB+, 11 -14(- 15) x (4.8 -)5.2- 7 µm , L = 12.35 µm , W = 6.11 µm , Q = 1.83-2.15 (n = 90/3). Specimens examined. AUSTRALIA. Victoria, Melbourne, Dandenong Ranges Botanical Garden, on dead branch of Rhododendron , 12 May 2018, Dai 18659, 18660 & 18661 (MEL, dupl. in BJFC); on dead branch of Eucalyptus , 12 May 2018, Dai 18662 (MEL, dupl. in BJFC). NEW ZEALAND. Omahu Bush, on Melicytus , 15 Feb 2010, Cooper (PDD 95714, dupl. in BJFC). Figure 10. Basidiocarps of Haploporus pirongia . Scale bar: 1.0 cm. Figure 11. Microscopic structures of Haploporus pirongia . a Basidiospores b Basidia c Basidioles d Cystidioles e Hyphae from subiculum f Hyphae from trama g Hyphae at dissepiment.