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 Add this item to the list  Gloiodon strigosus
   
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Page number:61 
Remarks (internal):Gloiodon strigosus resembles Auriscalpium vulgare in many details. Common characters are the shaggy hairs covering the pileus as a tomentum, the cigar brown colour of the pileus and context, the duplex structure with a cortical layer, and the colour of the spines. When growing on the upper side of a fallen tree, the pilei of G. strigosus have constricted bases, and may even be substipitate. In the micro-scope the similarities to Auriscalpium vulgare are even more obvious: dimitic hyphal structure, gloeocystidia, and the characters of the spores. These two species could well be placed in a single genus, be-cause the chief differences are merely morphological and are moreover relatively small.
The most detailed description and discussion of the species has been published by Jahn and Sturm (1983).
 
Description type:Non-original description 
Description:Gloiodon strigosus
Hydnum strigosum Swartz, Kongl. Vetensk. Acad. Nya Handl. 31(3): 250, 1810: Fries, Syst. Mycol. 1: 414, 1821. - Gloiodon strigosus (Swartz: Fr.) Karsten, Medd. Soc. F. Fl. Fenn. 5: 42, 1879.- For synonyms, see Maas Geesteranus (1974). Type: not designated, see Banker (1913). According to Swartz (1810), H. strigosum was found in Sweden, Västmanland: Sätrabrunn, and Karlberg between Ramnäs and Fläckebo.
Fruit body annual, often emerging from remnants of earlier years, resupinate, effused-reflexed or pileate, solitary or more often consisting of several imbricate caps growing at the edges of a wider resupinate area, ochraceous or greyish brown, darkening with age to sepia or dark cigar brown; soft when fresh, brittle when dry. Pileus up to 3 cm in diam, broadly attached, covered with stiff, shaggy hairs, which form flattened bundles at the margin of the pileus. Resupinate part up to 6 x 4 cm wide. Spines up to 1 cm long, cylindrical, acute, pale greyish brown when young, when old or dry covered with white spore mass and then dark ash grey. No specific taste or smell.
Section: Context duplex. Tomentum consisting of dark cigar brown, loosely interwoven, shaggy bristles. Separating layer thin, black-brown, compact. Context thicker than other layers, soft and fibrillose, light brown; enclosures of context often found within the tomentum. Subiculum in resupinate parts 0.5 mm thick, with clearly marked, black-brown separating layer. Trama of the spines light brown, homogeneous.
Hyphal system dimitic. Generative hyphae 2-5 µm in diam, thin-walled, with clamp connections. Skeletal hyphae 2-4 µm in diam, thick-walled. Bristles made up of parallel, agglutinated generative hyphae. Cortex resembling tomentum in its hyphal structure, with predominantly brown-walled, parallel, agglutinated, generative hyphae. Context a sub-parallel network of generative and skeletal hyphae, changing without zonation into the trama. Gloeoplerous hyphae difficult to observe, 3-5 µm in diam, oil-filled, protruding into the hymenium as club-like or sharp-pointed gloeocystidia. Basidia 15-25 x 5-7 µm, with a basal clamp, four-spored. Spores subglobose, hyaline, minutely verrucose, 4-6 x 3-4 µm, IKI blue, CB-.
 
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