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Project Noah Nature School
Coprinopsis spelaiophila
Description: Pileus: 13×15 mm; campanulate, sulcate; covered with large, white, filamentose-floccose velum remnants, which lie loosely on the pileus; white-grey with slightly browner centre, darker grey towards the margin. Lamellae: Numerous, crowded, fairly broad when young; first pale, then grey, later black, with grey floccose margin when young; deliquescent. Stipe: 70×3-4 mm; cylindrical, flexuous, slightly tapering towards the top, entirely covered with fine erect fibrils, sericeous underneath; white. Context: Thin, clear division of pileal and stipe context; white, darker in the foot and around the centre at the apex; hollow in the stipe. Smell/Taste: Smells mushroomy, no taste recorded. Microscopy: Spores av. 9,18×6,12 µm (measurements: 1000x, oil-immersion, H2O, 1 sd = 1,02 micron, n=10); very broadly fusiform to amygdaliform met acute apex; chocolate brown, hyaline; Basidia: 4-sterigmate; Pleurocystidia: 70 µm, ellipsoid-ovoid, scarce, hyaline; Cheilocystidia: not measured, globose to ellipsoid-ovoid, hyaline; Velum: long chains of sausage-shaped cells, sometimes bloated, sometimes branched with sporadically fine encrustation.
Ecology: Solitary in the heart of a stump of Fagus (Beech), lignicole, mesotrophic sandy soil.
Circumscription: Medium sized Inkcap with remarkably white-grey pileus and recurving, filamentose-floccose velum remnants which lie loosely on the pileus, growing in a cavity of a trunk of a cut-down Fagus (Beech). A very rare species in the Netherlands, listed as Critically Endangered on the Red List of 2008 (Arnolds & Veerkamp, 2008). Notes: This species has been first described for science by two of my dearest friends and first mentors in mycology: the late Cees Bas and the late Kees Uljé. As an Inkcap fanatic, like world reknown Inkcap expert Uljé was, I feel this was a little gift from my friends. References: http://www.grzyby.pl/coprinus-site-Kees-... http://www.grzyby.pl/coprinus-site-Kees-... http://kvmv.be/kvmv-uploads/Coprinus-sle... Funga Nordica (Knudsen & Vesterholt, 2008)
Spotted on Oct 16, 2016
Submitted on Nov 5, 2016
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