Sidera borealis Z.B. Liu & Yuan Yuan, 2023
|
publication ID |
https://dx.doi.org/10.3897/mycokeys.96.100743 |
|
persistent identifier |
https://treatment.plazi.org/id/8418DA5A-1F8A-5C01-B63C-7D51D5CC0985 |
|
treatment provided by |
|
|
scientific name |
Sidera borealis Z.B. Liu & Yuan Yuan |
| status |
sp. nov. |
Sidera borealis Z.B. Liu & Yuan Yuan sp. nov.
Figs 4 View Figure 4 , 5 View Figure 5
Diagnosis.
Sidera borealis is characterized by annual, resupinate basidiomata with cream to pinkish buff dry pore surface, angular pores (6-7 per mm), a dimitic hyphal system, and allantoid basidiospores measuring 3.9-4.1 × 1-1.1 μm.
Holotype.
China, Shannxi Province, Zhashui County, Niubeiliang Forest Park, on fallen angiosperm trunk, 16.IX.2013, Cui 11216 (BJFC 015331).
Etymology.
Borealis (Lat.): referring to the species occurring in boreal areas of China.
Basidiomata.
Annual, resupinate, soft corky and without odor or taste when fresh, corky when dry, up to 5 cm long, 2 cm wide, and less than 1 mm thick at center; pore surface white to cream or pale buff when fresh, becoming cream to pinkish buff when dry; sterile margin indistinct, white, cottony, thinning out; pores angular, 6-7 per mm; dissepiments thin, entire; subiculum very thin to almost absent; tubes concolorous with poroid surface, less than 1 mm long.
Hyphal structure.
Hyphal system dimitic; generative hyphae with clamp connections; skeletal hyphae dominant; all hyphae IKI-, CB-; tissue unchanged in KOH.
Subiculum.
Generative hyphae hyaline infrequent, thin-walled, occasionally branched, 1-2 μm in diam; skeletal hyphae dominant, thick-walled with a narrow to medium lumen, occasionally branched, flexuous, interwoven, 1-3 μm diam.
Tubes.
Generative hyphae hyaline occasionally present, thin-walled, rarely branched, 1-2 μm in diam, dominating at dissepiment edges; skeletal hyphae thick-walled with a narrow to wide lumen, occasionally branched, flexuous, interwoven, 1-3 μm diam; rosette-like crystals present, 3-6 μm in diam; cystidia absent; cystidioles present, fusoid, hyaline, thin-walled, basally swollen, with a sharp or often hyphoid neck, 17-19 × 2.5-3 μm; basidia barrel-shaped, hyaline, bearing four sterigmata and with a basal clamp connection, 7-8 × 3.5-4 μm; basidioles in shape similar to basidia, but slightly shorter.
Spores.
Basidiospores allantoid, hyaline, thin-walled, smooth, occasionally with one or two guttules, IKI-, CB-, (3.5-)3.9-4.1(-4.2) × (0.8-)1-1.1(-1.4) μm, L = 4.01 μm, W = 1.06 μm, Q = 3.78 (n = 60/1).
Additional specimens examined.
China, Gansu Province, Zhuoni County, Yaohe Nature Reserve , on rotten wood of Abies , 19.VIII.2022, Dai 24187 (BJFC 039430); on rotten wood of Picea , 18.VIII.2022, Dai 24120 (BJFC 039364) ; Jilin Province, Antu County, Dongfanghong Forest Farm, on rotten wood of Pinus , 25.VII.2022, Dai 23803 (BJFC 039047) ; Qinghai Province, Nangqian County, Baizha Forest Farm, on rotten wood of Picea , 7.VIII.2022, Dai 23960 (BJFC 039204); Dai 23962 (BJFC 039206) ; Yunnan Province, Deqin County, Baimaxueshan Nature Reserve , on rotten wood of Picea , 5.IX.2021, Dai 22822 (BJFC 037395) .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.