Ganoderma sandunense Hapuar., T.C. Wen & K.D. Hyde

Yang, Hong-De, Ding, Yong, Wen, Ting-Chi, Hapuarachchi, Kalani Kanchana & Wei, De-Ping, 2022, Ganoderma ovisporum sp. nov. (Polyporales, Polyporaceae) from Southwest China, Biodiversity Data Journal 10, pp. 80034-80034 : 80034

Ganoderma sandunense Hapuar., T.C. Wen & K.D. Hyde

Materials

Type status: Holotype. Occurrence: recordedBy: Ting-Chi Wen ; occurrenceID: GACP 18012501; Taxon : scientificName: Ganoderma sandunense; kingdom: Fungi ; phylum: Basidiomycota ; class: Agaricomycetes ; order: Polyporales ; family: Polyporaceae ; genus: Ganoderma ; Location : country: China; countryCode: CN; stateProvince: Guizhou; county: Sandu Shuizu Autonomous County; verbatimElevation: 590 m; verbatimLatitude: 24°54′N; verbatimLongitude: 107°53′E; Identification: identifiedBy: Kalani Hapuarachchi; Event: year: 2018; month: January; day: 25; habitat: Terrestrial; fieldNotes: Rotten wood, growing up from the soil; Record Level: type: GACP 18012501; collectionID: GACP 18012501

Description

Basidiome annual, stipitate, corky, strongly laccate. Pileus hemispherical, projecting 8 cm, up to 4 cm wide and 1.5 cm thick. Pileal surface reddish-black (8E8) to brownish-black (6C8), with distinctly concentrically sulcate, vertically-arranged ridges or grooves. Margin obtuse, concolorous with the pileus. Pore surface whitish-yellow (4A2) to light brown (6D4). Pores nearly circular, 3-5 per mm, dissepiments thin. Context up to 0.5 cm thick, inconspicuous triplex, fawn (5C5) to creamy-white (5A1) to dark brown (5E6), without concentric growth zone, black melanoid band absent. There is a line of independent or confluent, laterally-arranged tubes inserted between the upper and middle layer of the context. Tubes up to 1.2 cm long, dark brown (7F8). Stipe slightly darker than pileus, central, subcylindrical, up to 8 cm, 0.5 cm in diam. Basidia broadly ellipsoid, 21-25.5 × 13.5-17.5 μm, with four sterigmata. Basidiospores (12.3-)13.2-13.7-14.2(-15.7) × (9.0-)10-10.3-10.6(-12.5) μm (Qm = 1.3, Q = 1.0-1.7, n = 30, with myxosporium), ellipsoid to broadly ellipsoid, brown (7E5). Pileipellis cells clavate like, entire, brownish-orange (5C5), 50-95 × 8-13.5 μm. Hyphal system trimitic, generative hyphae 4-6 μm in diam., hyaline, colourless, thin-walled with clamp connections; skeletal hyphae 3.5-6 μm in diam., thick-walled to nearly solid, sometimes branched; binding hyphae 1-2 μm in diam., thick-walled, nearly solid, colourless (Fig. 2 ).

Notes

Ganoderma sandunense was introduced by Hapuarachchi et al. (2019b) with ITS sequence. In addition, the description of its basidia is absent in their publication. In this study, the holotype of G. sandunense was loaned from Herbarium (GACP) and re-examined. We have refined this species with a more detailed illustration. Furthermore, we provided RPB2 sequence data of this species, which is an important phylogenetic marker used for intraspecific delimitation within Ganoderma .

Figures

Figure 2. Ganoderma sandunense (GACP 18012501, holotype). a Basidiome; b Pore surface; c Sections of pileus; d - e Pileipellis terminal cell; f Basidia; g - j Basidiospores; k Skeletal hyphae and binding hyphae; l Generative hyphae; m Binding hyphae. Scale bars: d-e = 50 μm; f-h = 20 μm; i-j = 10 μm; k = 100 μm; l-m = 50 μm.