TABLE 2 in Tuber itzcuinzapotl sp. nov. (Tuberaceae, Pezizomycetes), the first edible truffle reported from Mexico with traditional biocultural importance

TABLE 2. Diagnostic characteristics of the new species described in this work compared to related species.
CharacterT. aztecorumT. castilloiT. itzcuinzapotlT. miquihuanenseAscomataSize5–23 × 4–16 × 3–1111–25 × 10–1735 × 2830–20ShapeSubglobose, irregular, lobate or globoseSubglobose to ovoid, flattened or irregularSubglobose irregular to lobateSubglobose to slightly gibboseTextureFinely verrucose or granuloseMinutely verrucose to papilloseFinely verrucose or granuloseFlat-polygonal to pyramidal wartsTasteNot recordedNot recordedFruityNot recordedSmellRaw potato-likeNot recordedFruityPleasantPeridiumWidth (μm)110–35080–150200−400110–360ColorHyaline to reddish brownHyaline to reddish brownHyaline to reddishYellowish to reddish brownHyphal arrangementPseudoparenchimaPseudoparenchimaPseudoparenchimaPseudoparenchimaGlebaAppearanceMarbledMarbledMarbledMarbledColorWhite to greyishLight brownPale brown to greyish brown, dark brown when matureCream to light brownHyphal arrangementInterwovenInterwoven to periclinal,InterwovenInterwoven to periclinalAsciSize62–95 × 57–7790 × 50–6534−70 × 20−5065–90 × 51–70ShapeGlobose, subglobose to broadly ellipsoidGlobose to subglobose or ovoid, some with a short pedicelGlobose to subglobose, hyaline, some with a globose pedicelGlobose to subglobose or broadly ellipsoid, with a short pedicel when youngNumber of spores1 to 41 to 41 to 41 to 5AscosporesShapeSubglobose, globose to broadly ellipsoidSubglobose to broadly ellipsoidEllipsoidGlobose to subglobose or broadly ellipsoid, with a short pedicel when youngSize in spores per asci (µm) *1) 42–58 × 27–48; 2) 25–52 × 23–40; 3) 27– 40 × 20–30; 4) 23–38 × 18–281) 27–63 × 20–40; 2) 30–50 × 23–34; 3) 27–40 × 20–32; 4) 27–44 × 20–301) 40−52 × 23−30; 2) 27−34 × 15−22; 3) 22−39 × 15−19; 4) 25−42 × 13−301) 40–50 × 30–39; 2) 29–40 × 24–35; 3) 24–35 × 22–33; 4)23–28 × 20–26; 5) 20–28 × 20–22Changes of colorNoneNoneNoneNoneHabit and habitatHypogeous, gregarious in volcanic rock soil in an Abies religiosa forestHypogeous, solitary to scattered.Hypogeous, solitary.Hypogeous, solitary to scattered.Type of vegetationAbies religiosa forestMixed forest with Quercus spp. and Pinus spp.Pinus forestPinus - Quercus and mesophyll forestsGeographical distributionState of Mexico, Mexico.Nuevo León and Tamaulipas, Mexico.Veracruz, Mexico.Tamaulipas, Mexico.ReferenceGuevara-Guerrero et al. 2018Guevara-Guerrero et al. 2013This workGuevara-Guerrero et al. 2013
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* the number before parenthesis indicates the number of spores per asci