Boletales » Boletaceae » Tengioboletus

Tengioboletus reticulatus

Tengioboletus reticulatus G. Wu & Zhu L. Yang, in Wu et al., Fungal Diversity 81: 100 (2016)


Etymology: The epithet ‘‘reticulatus’’ refers to the reticulate stipe of this species.


Pileus 410 cm in diam., convex to applanate; surface olive brown, brownish, brown to dark brown (4D44D5, 6D46D5, 5F6, 7F7), nearly glabrous, dry; context light yellow (2A42A5), color unchanging when cut. Hymenophore adnate to sinuate; surface yellow (2A63A6), up to 0.8 cm thick, color unchanging when cut; pores ca. 1/mm; tubes up to 1 cm long, concolorous with hymenophoral surface, color unchanging when cut. Stipe 812 9 11.5 cm, subcylindrical to clavate, light yellow (4A44A5) to yellowish brown (5D65E6), with distinct concolorous or paler reticulations on the upper to middle part of stipe; context light yellow (2A42A5), color unchanging when cut; basal mycelium cream to light yellow. Clamp connections absent.


Basidia 2839 x 913 μm, clavate, 4-spored. Basidiospores 1214.5 (16) x 4.56 (6.5) μm [Q= (2.17) 2.292.69 (2.92), Qm = 2.53 ± 0.14], subfusiform and inequilateral in side view with suprahilar depression, subfusoid in ventral view, brownish yellow, smooth. Hymenophoral trama boletoid; hyphae cylindrical, 611 μm wide. Cheilocystidia scattered, 20.540 x 7.59 μm, thinwalled. Pleurocystidia scattered, 4065 x 8.511 μm, fusoid-ventricose to broadly fusoid-ventricose with long beak, thin-walled. Pileipellis a trichodermium up to 110 μm thick, composed of moniliform hyphae 819 μm wide, with inflated terminal cells 1842 x 1122 μm. Pileal trama composed of interwoven hyphae 59 μm wide. Stipitipellis 3040 μm thick, hymeniform, with clavate terminal cells 2337 x 714 μm. Stipe trama composed of parallel hyphae 612 μm wide, slightly thickwalled (.8 μm).


Habitat: Scattered on soil in subtropical forests of Fagaceae (Lithocarpus spp., Castanopsis spp., and Quercus spp.).


Known distribution: Currently only known from central China.


Additional specimen examined: CHINA, HUNAN PROVINCE: Yizhang County, Mangshan National Forest Park, 3 September 2007, alt. 880 m, Y.C. Li 1081 (HKAS 53426).


Index Fungorum numberIF818491

Notes:  Tengioboletus reticulatus is characterized by its reticulate stipe, context without color change when cut, and trichodermium pileipellis composed of moniliform hyphae with inflated terminal cells.


Figure 1. Fresh basidiomata of representative species. no. Tengioboletus reticulatus (HKAS53426)


Figure 2. Tengioboletus glutinosus (HKAS 53425, holotype). a. Pileipellis; b. Basidiospores; c. Cheilocystidia; d. Basidia and pleurocystidia; e. Pleurocystidia. Scale bars = 10 μm


Wu G; Li YC; Zhu XT; Zhao K; Han LH; Cui YY; Li F; Xu JP; Yang ZL. 2016. One hundred noteworthy boletes from China. Fungal Diversity. 81:25-188


About Basidiomycota

The webpage Basidiomycota provides an up-to-date classification and account of all genera of the phylum Basidiomycota.


Supported by 

Thailand Science Research and Innovation (TSRI)

project entitled:

"Macrofungi diversity research from the Lancang-Mekong Watershed and surrounding areas"

(Grant No. DBG6280009)


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