Polyporales » Polyporaceae » Grammothele

Grammothele lineata

Grammothele lineata Berk. & M.A. Curtis. 1868, in Cui, et al., Fungal Diversity 97, 137392 (2019)

Diagnosis: Basidiocarps resupinate, adnate, up to 16 cm long, 5 cm wide and 1 mm thick, corky to coriaceous, without special odor or taste when fresh, becoming hard corky and light in weight upon drying. Pore surface bluish-gray to sordid gray; pores angular to irregular, 23 per mm; dissepiment thin, entire to lacerate, with plenty hyphal pegs; hyphal pegs often projecting out of tube walls, yellowish brown at base. Sterile margin white to pale pinkish. Subiculum corky, whitish to pinkish, becoming dark and resinous with age, very thin, about 0.2 mm thick. Tubes shallow, rigid corky when dry, concolorous with pore surface, up to 0.8 mm long. Hyphal system dimitic; generative hyphae bearing clamp connections; skeletal hyphae dextrinoid, CB; tissues darkening in KOH. Generative hyphae infrequent, hyaline, thin-walled, 1.52.5 µm in diam; skeletal hyphae dominant, hyaline to pale brownish, thick-walled to subsolid, occasionally branched, interwoven, 12.5 µm in diam. Generative hyphae hyaline, thin-walled, occasionally branched, 22.6 µm in diam; skeletal hyphae dominant, thick-walled with a narrow lumen, occasionally branched, interwoven, 22.9 µm in diam. Cystidia and cystidioles absent. Dendrohyphidia richly present, hyaline, thin-walled, moderately to strongly branched. Basidia clavate, with four sterigmata and a basal clamp connection, 15.522.8 9 4.65.9 µm; basidioles mostly clavate, slightly smaller than basidia. Basidiospores oblong-ellipsoid, hyaline, thin-walled, smooth, IKI, CB, (4.4–)4.66.5(–6.8) × (2.5–) 2.63.2 lm, L = 5.55 lm, W = 2.9 lm, Q = 1.91 (n = 30/1).

Index Fungorum Number: IF168936

Notes: Grammothele lineata differs from G. fulgio by its bigger pores (23 per mm), and growth on the substrate of dicotyledonous trees.

 

Figure 1Basidiocarps of Grammothele lineata

 

 

Figure 2Microscopic structures of Grammothele lineata (drawn from Cui 6687). a. Basidiospores; b. Basidia and basidioles; c. Hyphal structure. Bars: a = 5 lm; bc = 10 µm

 

Reference:

Cui, Bao-Kai & Li, Hai-Jiao & Ji, Xing & Zhou, Jun-Liang & Song, Jie & Si, Jing & Yang, Zhu-Liang & Dai, Yu-Cheng. (2019). Species diversity, taxonomy and phylogeny of Polyporaceae (Basidiomycota) in China. Fungal Diversity 97, 137392

 

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)

Contact

  • Email: basidio.org@yahoo.com
  • Addresses:
    Mushroom Research Foundation, 292 Moo 18, Bandu District,
    Muang Chiangrai 57100, Thailand
  • The State Key Lab of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.3 1st Beichen West Rd., Chaoyang District, Beijing 100101, P.R. China


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