Crocinoboletus
Crocinoboletus N.K. Zeng, Zhu L. Yang & G. Wu, in Zeng et al., Phytotaxa 175(3): 134 (2014)
Etymology: “Crocino” refers to the presence of the boletocrocins.
Basidiocarp stipitate-pileate with tubular hymenophore. Pileus 3.8–8 cm in diameter, convex to applanate, surface yellowish orange, bright orange to reddish orange, covered with minute, reddish brown squamules, turning bluish olivaceous quickly, then blackening when bruised. Hymenophore poroid, adnate or slightly depressed around apex of stipe; tubes 3–5 mm in depth, with pores 0.2–0.7 mm in diameter; orange, turning bluish olivaceous quickly, then blackening when bruised. Stipe 5–11 × 1–3 cm, centrally attached, subcylindric; surface concolorous with the pileus, covered with reddish orange squamules, turning bluish olivaceous quickly, then blackening when bruised. Context vivid golden yellow, turning bluish olivaceous quickly when bruised. Basidiospores subfusiform to ellipsoid, smooth. Pleuro- and cheilocystidia present. Pileipellis an interwoven trichoderm at the middle part of the pileus but a cutis at the margin of the pileus. Clamp connections absent. Polyene pigments boletocrocins present.
Index Fungorum number: IF809228
Type species: Crocinoboletus rufoaureus (Massee) N.K. Zeng, Zhu L. Yang & G. Wu 2014, in Zeng et al., Phytotaxa 175(3): 134 (2014)
Species
Crocinoboletus laetissimus (Hongo) N.K. Zeng, Zhu L. Yang & G. Wu 2014
Crocinoboletus rufoaureus (Massee) N.K. Zeng, Zhu L. Yang & G. Wu 2014
Key reference:
Zeng, Nian-Kai & Wu, Gang & Li, Y.-C & Liang, Z.-Q & Yang, Zhu. (2014). Crocinoboletus, a new genus of Boletaceae (Boletales) with unusual boletocrocin polyene pigments. Phytotaxa. 175. 133-140. 10.11646/phytotaxa.175.3.2.
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