taxonID	type	description	language	source
297F5F49CFC455A98BCA6FBC2FB54C7E.taxon	description	Fig. 4 a – f	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
297F5F49CFC455A98BCA6FBC2FB54C7E.taxon	etymology	Etymology. Conditum, Latin, refers to the acrid smell of ascocarp.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
297F5F49CFC455A98BCA6FBC2FB54C7E.taxon	diagnosis	Diagnosis. Tuber conditum differs from other species by having no cystidia on surface of ascomata, thinner peridium, and larger ellipsoid ascospores.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
297F5F49CFC455A98BCA6FBC2FB54C7E.taxon	description	Description. Ascomata (Fig. 4 a) 3 – 4 cm diam., subglobose, hypogeous, grey-white to grey-brown (4 A 2 - 4; 4 B 3 - 4), surface smooth, with a few pinholes; acrid smell, taste not recorded. Peridium (Fig. 4 b) one-layered, 120 – 200 µm thick, prosenchymatous, composed of interwoven hyphae 1.5 – 2.5 µm broad with thin-walled, and lumens 1.5 – 2.5 (3.5) µm diam, with ellipsoid or irregular cells of 15 × 10 μm diam. Sometimes intermixed, wall thickness 1 – 2 μm. Gleba (Fig. 4 a, c) solid, firm, brown to black (6 E 7 - 8; (5 - 9) F 8) at maturity, marbled with whitish narrow veins. Asci (Fig. 4 d – e) subglobose or irregular, 1 – 4 spored, hyaline, thin-walled or occasionally with walls as thick as 2 μm, sessile stalk, 55 – 100 × 45 – 75 μm (n = 30). Ascospores (Fig. 4 d – f) subglobose or ellipsoid, pale yellow (2 A 2 - 4), yellow-brown (5 D 6 - 8; 5 E 7 - 8) at maturity, excluding ornamentation, 49 – 66.5 × 34.5 – 60 μm, Q = 1.02 – 1.58 (n = 54), in one-spored asci, 33 – 54.5 × 30 – 47 μm, Q = 1.06 – 1.35 (n = 50), in two-spored asci, 21.5 – 44 × 21 – 37 μm, Q = 1.00 – 1.26 (n = 60), in three-spored asci, 20.5 – 40.0 × 20 – 35.5 μm, Q = 1.01 – 1.30 (n = 40), in four-spored asci, Q = 1.15 ± 0.23, reticulate ornamentation 2 – 5 μm in height, composed of irregular hexagonal meshes, 6 – 8 along the spore length and 3 – 6 along the breadth.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
297F5F49CFC455A98BCA6FBC2FB54C7E.taxon	distribution	Distribution and habitat. China: Yunnan province, Changning county, hypogeous, in the soil in woods dominated by Pinus yunnanensis.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
9F5806F8A46150AC9DC9F9966E09CB4F.taxon	description	Fig. 3 a – g	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
9F5806F8A46150AC9DC9F9966E09CB4F.taxon	etymology	Etymology. “ Marroninum ” refers to the maroon color of the ascoma.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
9F5806F8A46150AC9DC9F9966E09CB4F.taxon	diagnosis	Diagnosis. Tuber marroninum differs from other species by its whitish and glabrous ascomata and maroon color of the ascoma, globose and subglobose or broad ellipsoid ascospores, with greyish-white alveolate-reticulate ornamentation.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
9F5806F8A46150AC9DC9F9966E09CB4F.taxon	description	Description. Ascomata (Fig. 3 a, b) 3 – 5 cm diam, subglobose, hypogeous, whitish (3 A 1 - 2) becoming brown (8 E 6 - 8) when bruised, surface smooth, with white furrows; odor mild, taste not recorded. Peridium (Fig. 3 c, d) two-layered, 150 – 200 µm thick, outer layer 40 – 60 µm thick, pseudoparenchymatous, composed of subglobose or irregularly shaped cells of 7.5 – 16.8 (24.5) µm broad with thickened walls, inner layer composed of thin-walled hyaline interwoven hyphae, 2.5 – 4 (5.5) µm diam, large cells of 20 × 10 µm diam. Sometimes, intermixed. Gleba (Fig. 3 b) solid, firm, brown to dark brown (10 F 6 - 8) at maturity, marbled with whitish (1 A 1 - 1 B 1) narrow veins. Asci (Fig. 3 e, g) subglobose or irregular, 1 – 4 spored, with a short stalk, 50 – 75 (100) × 40 – 55 (80) μm (n = 50). Ascospores (Fig. 3 e, g) subglobose to globose, pale yellow (5 A 2 - 3, 5 B 3) when young, becoming brown (5 C 6 - 8, 5 D 6 - 7) at maturity, excluding their spiny-reticulate ornamentation, 41.5 – 52 × 41 – 50 μm, Q = 1.00 – 1.14 (n = 55), in one-spored asci, 33 – 41 × 32 – 40 μm (n = 50), Q = 1.00 – 1.15, in two-spored asci, 21 – 37 × 20 – 35.5 μm, Q = 1.01 – 1.12 (n = 60), in three-spored asci, 20 – 35.5 × 18.5 – 30.5 μm, Q = 1.02 – 1.15 (n = 60), in four-spored asci, Q = 1.14 ± 0.07, with a greyish white (2 B 1 - 2; 1 C 1 - 2) reticulatum and alveolate-reticulate ornamentation, meshes 5 – 8 across the ascospore width, 1.5 – 3 μm tall.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
9F5806F8A46150AC9DC9F9966E09CB4F.taxon	distribution	Distribution and habitat. China: Yunnan province, Xiangyun county, hypogeous, in the soil in mixed woods dominated by Pinus yunnanensis.	en	Yuan, Tian-Jun, Luo, Hong-Mei, Su, Kai-Mei, Li, Shu-Hong, Li, E-Xian (2025): Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence. MycoKeys 119: 295-314, DOI: 10.3897/mycokeys.119.143714
