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 Inocybe scissa
SynonymsAstrosporina scissa
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge)
Owner: J.A. Cooper | 
Owner: J.A. Cooper | 
Caption: caulocystidia
Owner: J.A. Cooper | 
Caption: lower cheilocystidia, paracystidia and basidium. Upper: pleurocystidia and basidia.
Owner: J.A. Cooper | 
Caption: spores
Owner: J.A. Cooper | 
Owner: J.A. Cooper | 
Caption: Dried type specimen
Owner: Herb PDD | 
Caption: Dried type specimen
Owner: Herb PDD | 
Caption: Astrosporina scissa (type): g, carpophores; h, spores; k, basidia; m, cheilo and pleurocystidia;
n, caulocystidia. | 
Owner: Karl Soop | 
Owner: J.A. Cooper |
Article: Horak, E. (1978) [1977]. Fungi Agaricini Novaezelandiae. VI. Inocybe (Fr.) Fr. and Astrosporina Schroeter. New Zealand Journal of Botany 15(4): 713–747 (http://www.rsnz.org/publish/abstracts.php).
Description: Pileus -40 mm diam., conical at first, soon
convex to plane with distinct and permanent umbo; straw-yellow, ochraceous or
yellow-beige, more intensive at centre; smooth at umbo, fibrillose and rimose
towards the margin, conspicuously splitting, crenate (like B. vitellinus),
seen from above like spokes of a wheel; viscid when wet, veil remnants absent.
Lamellae adnate to almost free, ventricose, crowded (L 18-24, 1 3); whitish,
grey later turning brownish beige with white, fimbriate edges. Stipe 20-50 x
3-4 mm, cylindrical, equal, base marginate bulbous; white later turning (yellowish)
brownish with pink or reddish tints; pruinate for whole length, sometimes longitudinally
striate; dry, veil remnants none. Context yellow beneath cuticle, brownish pink
in stipe, Odour not distinctive.
Spores 8-11 x 5.5-8 pm, nodulose, with conspicuous
knobs, brown. Basidia 22-32 x 7-8 ^m, 4-spored. Cheilocystidia and pleurocystidia
35-65 x 20-34 µm, broadly inflated-fusoid, pear shaped, metuloid, encrusted,
yellowish plasmatic pigment. Caulo-cystidia like cheilocystidia. Cuticle a cutis
of cylindrical hyphae (4-10 µm), encrusted with brown-yellow pigment, slightly
gelatinised membranes. Clamp connections present.
Habitat: On soil in Nothofagus forests (N. cliffortioides,
N. fusca; rarely under Leptospermum scoparium). New Zealand.
Notes: This spectacular Astrosporina is recognised
by the deeply split margin and the metuloid, subglobose cheilo- and pleurocystidia.
Macroscopically the New Zealand species resembles I. discissa del. (Cleland
1934) but the cheilocystidia of this species are cylindrical and thin-walled
and the context emits a strong spermatic smell.
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