Boletales » Boletaceae » Rubroboletus

Rubroboletus sinicus

Rubroboletus sinicus (W.F. Chiu) Kuan Zhao & Zhu L. Yang, in Zhao et al. Phytotaxa 188(2): 67 (2014)

Index Fungorum number: IF809236

Notes: Rubroboletus sinicus, the type of Rubroboletus, is characterized by its rose-red to dark red pileal surface covered with brownish scales, ovoid-ellipsoid spores with an inconspicuous suprahilar depression and a bluish color change when bruised (Chiu 1948, 1957).

Figure 1. Maximum-Likelihood phylogenetic tree generated from the combined dataset (nrLSU, tef1-α, rpb1 and rpb2 ). BS support values >50% for ML and PPs >0.95 for BI are indicated along branches (BS/PP). 

 

Figure 2. Maximum-Likelihood phylogenetic tree generated from ITS sequences. BS support values >50% for ML and PPs >0.95 for BI are indicated along branches (BS/PP). 

 

Figure. 3. Basidiomata of Rubroboletus sinicus (a, c from HKAS 68620; b from HKAS 63486).a. Mature basidioma. b. Blood red surface of the hymenophore. c. Bluish color change after injury (image taken immediately after sectioning). Scale bars: a-c=1 cm.

 

Figure. 4. Microscopic features of Rubroboletus sinicus (HKAS 63486). a. Basidiospores. b. Basidia and pleurocystidium. c. Cheilocystidia. d. Pileipellis. Scale bars: a=10 μm; b-d=20 μm.

Reference:

Zhao K. & Wu G.. 2014. A new genus, Rubroboletus, to accommodate Boletus sinicus and its allies. Phytotaxa. 188. 61-77. 10.11646/phytotaxa.188.2.1.

 

 

 

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