taxonID	type	description	language	source
6C605722FFFEFFC2FF59142EFE89638C.taxon	description	Typification: CHINA. Yunnan Province, Dali City (25 ° 38 ′ N ， 100 ° 68 ′ E), in humic soil under a pure Pinus forest, at about 2090 m, 26 December 2020, wsp 1043 - 8, YNAU 016 (GenBank ITS number = OK 625303). Diagnosis: Tuber sinomacrosporum is characterized by the brownish-red ascoma, mostly 1 (2) - spored asci, large and ellipsoid ascospores. Etymology: referring to a Chinese species have large spores. Description: Ascoma 2.2 × 1.35 cm in diam, oval-shaped or irregular, light brown, partial brown to brownishred when fresh, becoming brownish-red when dried, surface partially covered with yellow tomentose. Odor pleasant. Peridium 108.0 – 148.0 μm thick, one layer, prosenchymatous, composed of yellowish to transparent cells and interwoven hyphae, cells (1.0 –) 2.2 – 5.7 (– 7.8) × (1.0 –) 1.7 – 4.5 (– 5.4) μm, hyphae 1.3 – 2.8 μm in diam. Gleba solid, blackish at maturity, marbled with different whitish to greyish veins continuous with the peridium; composed of hyaline, interwoven, thin-walled hyphae, 0.7 – 2.4 μm broad at the septa, the cells subglobose to globose, 1.1 – 7.3 (– 10.5) × 0.9 – 5.7 (– 8.6) μm. Asci 114.0 – 143.0 (– 158.0) × 86.0 – 117.0 (– 124.0) μm, ellipsoid, rarely pyriform or irregular, hyaline, sessile or with a short or tall stalk 7.5 – 49.0 μm, 1 - spored, rarely 2 - spored. Ascospores ellipsoid, sometimes oblong elliptical and broadly ellipsoid, hyaline when young, becoming brownish-red to brown at maturity; excluding alveolar ornamentation, in 1 - spored asci (80.0 –) 89.0 – 105.0 (– 109.0) × (55.0 –) 61.0 – 76.0 (– 78.0) μm (Q = 1.32 – 1.53, Q m = 1.43 ± 0.08) (n = 120), in 2 - spored (51.0 –) 55.0 – 78.0 (– 84.0) × (32.0 –) 37.0 – 55.0 (– 57.0) μm (Q = 1.25 – 1.65, Q m = 1.4 ± 0.16) (n = 30). Ornamented with alveolate reticulum, 2 – 6 μm deep, constituted of irregularly polygonal meshes, reticulum with 3 – 7 meshes along the spore length and 3 – 7 across. Distribution and habitat: Hypogeous, in soil under pure stand of Pinus forest in Yunnan Province, China. Known only from China.	en	Wan, Shan-Ping, Liu, Wei, Cui, Meng-Jin, Wang, Rui, Wang, Yu-Yun, Liu, Mei-Ju, Wang, Rui- Xue, Yu, Cheng-Jin, Yu, Fu-Qiang (2023): Morphological and molecular evidence support a new truffle, Tuber sinomacrosporum, in Macrosporum group. Phytotaxa 591 (4): 283-291, DOI: 10.11646/phytotaxa.591.4.5, URL: http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN
