Grammatus H.S. Yuan & C. Decock
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publication ID |
https://dx.doi.org/10.3897/mycokeys.35.25271 |
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persistent identifier |
https://treatment.plazi.org/id/6541355E-31B3-870A-7342-DE5D5B05DD7B |
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treatment provided by |
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scientific name |
Grammatus H.S. Yuan & C. Decock |
| status |
gen. nov. |
Grammatus H.S. Yuan & C. Decock gen. nov.
Notes.
Basidiocarps annual, resupinate; hymenophoral surface hydnoid, irregularly poroid to labyrinthine, hymenium restricted to the area surround the spines or the bottom of the tubes; Hyphal system dimitic; skeletocystidia heavily encrusted in trama; dendrohyphidia thin- to slightly thick-walled; basidia longitudinally septate; basidiospores thin-walled, smooth, oblong-ellipsoid to cylindrical.
Type species.
Grammatus labyrinthinus H.S. Yuan & C. Decock.
Etymology.
grammatus: referring to the hymenophore striped with raised lines.
Basidiocarps annual, resupinate, coriaceous; hymenophoral surface cream to pale buff, covered by evenly distributed blunt-pointed spines or irregularly irpicoid to subporoid, then developing into labyrinthiform to sinuous pores; hymenium restricted to the area surrounding the spines or the bottom of the tubes. Subiculum very thin. Spine or tubes corky, concolorous with hymenophoral surface, shallow. Hyphal system dimitic; generative hyphae bearing clamp connections; skeletal hyphae IKI–, CB+; tissue unchanged in KOH. Skeletocystidia clavate, upper part heavily encrusted. Dendrohyphidia present. Basidia subglobose, longitudinally septate. Basidiospores oblong-ellipsoid to cylindrical, hyaline, thin-walled, smooth, IKI–, CB–.
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