Boletus umbrinipileus

Boletus umbrinipileus is an edible basidiomycete mushroom, of the genus Boletus in the family Boletaceae. Morphologically similar to Boletus phaeocephalus and belonging to the porcini group (Boletus sect. Boletus), it was first described in 2015, and is known to be found only in China, Yunnan Province.[2]

Boletus umbrinipileus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Boletaceae
Genus: Boletus
Species:
B. umbrinipileus
Binomial name
Boletus umbrinipileus
B. Feng, Y.Y. Cui, J.P. Xu & Zhu L. Yan, 2015[1]
Boletus umbrinipileus
View the Mycomorphbox template that generates the following list
Pores on hymenium
Cap is convex
Hymenium is adnate
Stipe is bare
Ecology is mycorrhizal
Edibility is edible

Morphology

Cap

The cap is 4.5 to 7 cm in diameter, initially plano-convex in shape, before becoming applanate as it ages; The surface is dry with small hair, brownish gray to olivaceous brown, sometimes with paler, grayish to grayish white margin. The flesh is white and does not turn blue when bruised.

Pores

The pores are stuffed with white when young, becoming pallid yellow with slightly olivaceous tinge, unchanged when bruised.

Stipe

From 8.5 to 10 cm long; 0.8-1.5 cm thick; subcylindrical shape; upper two-thirds colored brownish to grayish brown and covered with whitish reticulations which become more enlongated downwards; lower one-third colored dirty white to white and not reticulated.

Spores

Subfusiform, 10-13 x 3.5–4 µm.[2]

Habitat and distribution

Solitary or gregarious in the subtropical Fagaceae forests in Southwest China.[2]

References

  1. "Index Fungorum - Names Record".
  2. Cui, Yang-Yang; Feng, Bang; Wu, Gang; Xu, Jianping; Yang, Zhu L. (November 2016). "Porcini mushrooms (Boletus sect. Boletus) from China" (PDF). Fungal Diversity. 81 (1): 189–212. doi:10.1007/s13225-015-0336-7. ISSN 1560-2745. S2CID 256068156.
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