VIRTUAL MYCOTA: NZ Fungi Identification: Gloiocephala xanthocephala

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Gloiocephala xanthocephala

Synonyms

Marasmius xanthocephalus

Biostatus

Present in region - Indigenous. Endemic

Images (click to enlarge)


Caption: Fig. 4 (1-7). Gloiocephala xanthocephala (G. Stevenson) Desjardin & E. Horak (ZT 67116).- l. Basidiomes.- 2. Basidiomes (x3).- 3. Basidiospores.- 4. Basidia.- 5. Basidioles.6. Cheilogloeocystidia.- 7. Pileipellis.	Caption: Fig. 4 (1-7). Gloiocephala xanthocephala (G. Stevenson) Desjardin & E. Horak (ZT 67116).- l. Basidiomes.- 2. Basidiomes (x3).- 3. Basidiospores.- 4. Basidia.- 5. Basidioles.6. Cheilogloeocystidia.- 7. Pileipellis.	Caption: Fruitbodies on leaf. Scale = 2mm Owner: J.A. Cooper	Caption: stem showing caulocystidia (and no cystidia on cap). Scale = 0.5mm Owner: J.A. Cooper
Caption: pileipellis cells Owner: J.A. Cooper	Caption: caulocystidia and basidioles (?). Bottom right caulocystidium and spore. Scale = 50um. Owner: J.A. Cooper	Owner: J.A. Cooper	Caption: scale=5mm Owner: J.A. Cooper
Caption: scale=2mm Owner: J.A. Cooper	Caption: scale = 10um. Upper left caulocystidium on dextrinoid stem . Lower spores and cheilocystidia. Owner: J.A. Cooper	Caption: scale=5mm Owner: J.A. Cooper	Caption: scale=0.5mm Owner: J.A. Cooper
Caption: left: caulocystidia. Right: section through cap Owner: J.A. Cooper	Caption: spores, cap cells, cheilo and pleurocystidia. Owner: J.A. Cooper	Caption: scale=2mm Owner: J.A. Cooper	Caption: scale=2mm Owner: J.A. Cooper
Caption: scale=2mm Owner: J.A. Cooper	Caption: scale=2mm Owner: J.A. Cooper	Caption: scale=0.5mm Owner: J.A. Cooper	Caption: FUNNZ2007/0820 Owner: FUNNZ
Caption: FUNNZ2007/0904 Owner: FUNNZ	Caption: tope left: cap cells. Middle: cheilocystidia. Bottom: caulocystidia. Owner: J.A. Cooper	Caption: left: spores and caulocystidia. Middle: section through cap. Right: cheilocystidia. Owner: J.A. Cooper

Article: Desjardin, D.E.; Horak, E. (1997). Marasmius and Gloiocephala in the South Pacific Region: Papua New Guinea, New Caledonia, and New Zealand taxa. Bibliotheca Mycologica 168: 152 p.
Description: Pi1eus 2-5 mm diam, hemispherical to convex when young, expanded with age to plano-convex, disc flat or with an inconspicuous obtuse papilla, subplicate towards the margin; surface dull, dry, glabrous; white, cream, yellow or cinnamon, with a pale reddish brown tinge in age. Texture membranaceous, tough; context very thin, concolorous with the surface.- Lamellae adnexed to adnate, subdistant (6-10) with 0-1 series of lamellulae, white to very pale cinnamnon; edges even, concolorous.- Stipe 7-15 x 0.3-0.4 mm, central, equal, cylindrical, wiry, minutely pruinose, insititious; apex white, black elsewhere; rhizomorphs absent.- Odor and taste not distinctive.
Basidiospores (8.5-)9-11 x (3.5-)4.0-5.0 µm, ellipsoid, narrowly ellipsoid or subfusoid, often curved in profile, smooth, thin-walled, hyaline, inamyloid.- Basidia 22-32 x 5-8 µm, subcylindrical to clavate, 4-spored, clamped.- Basidio1es 25-40 x 4-8 µm, fusoid, hyaline, thin-walled.
Chei1og1oeocystidia abundant, 25-40(-45) x 6-10 µm, fusoid to lageniform-capitate, apex up to 8 µm diam, thin-walled to slightly thick-walled, hyaline to pale yellow. Pleurogloeocystidia scattered, similar to cheilocystidia.- Pileipellis hymeniform, composed of Globulares-type gloeocystidioid cells, 15-30(-40) x 8-20 µm, broadly clavate to nearly sphaeropedunculate, smooth, thick-walled (1-2 µm), with reddish orange resinous contents and cell walls, overlaid by a reddish brown, resinous, amorphous layer of exudate.- Differentiated pileogloeocystidia absent.- Tissues inamyloid.- Caulogloeocystidia scattered, 20-35 x 6-10 µm, similar to cheilogloeocystidia, thin-walled to thick-walled, yellowish brown.
Habitat: Habit, habitat and distribution.- Solitary, in groups on leaves of Grisellinia littoralis (Cornaceae) or Pseudopanax crassifolium (Scheffleraceae). New Zealand.
Notes: Gloiocephala xanthocephala is the Southern Hemisphere homologue to the Northern Hemisphere G. caucasica (Singer) Singer. Gloiocephala caucasica differs only subtly in forming a grey to greyish brown pileus, a pubescent stipe covered with thick-walled caulocystidia 40-108 x 10 µm, and basidiome formation on dicotyledonous leaves in Carinus-Quercus forests (fide Singer, 1937).

Article: Stevenson, G. (1964). The Agaricales of New Zealand: V. Kew Bulletin 19(1): 1-59.
Description: Pileus 1.5 mm diam., yellow, hemispherical, striate. Gills adnate, yellow 8-10 in one series. Stipe 9-10 x 0.1 mm, upper 1-2 mm yellow, dark brown below, polished, twisting as it dries. Spores 8-10 x 4 µm, non-amyloid, hyaline (Fig. 2/19, p. 37). Epicutis of more or less pseudo-amyloid globe cells.
Habitat: Inserted on fallen leaves, Leith Saddle, 20.6.1953, Stevenson (type).