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 Gallacea dingleyae
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge)
Caption: Fig. 1 Gallacea dingleyae. A, Basidioma exterior and in section (PDD 55927). B,
Basidiospores by bright field (PDD 55927). C, Basidiospores by SEM (PDD 55927).
Scale: 1 cm (A), 10 µm (B, C). | 
Caption: Dried type specimen
Owner: Herb PDD |
Article: Castellano, M.A.; Beever, R.E. (1994). Truffle-like Basidiomycotina of New Zealand: Gallacea, Hysterangium, Phallobata, and Protubera. New Zealand Journal of Botany 32(3): 305-328 (http://www.rsnz.org/publish/abstracts.php).
Description: Basidiomata up to 5 cm diam., globose to broadly obpyriform, yellowish white,
irregularly mottled pale yellowish brown, surface faintly fibrillose, dull when fresh
becoming sheeny on drying, sometimes cracking. Gleba dark greyish brown to moderate
brown with occasional milky white flecks, locules more or less radially elongate, partially
filled with spores, eventually deliquescing deep brown. Rhizomorphs evanescent.
Columella dendroid, stout, with distinct branches to mid-sporocarp, gelatinous to milky
translucent, with a non-gelatinised, cottony, white region near base. Taste slightly
peppery. Odour sweetish putrid when deliquescent.
Peridium separable, 400-500 µm thick, 2-layered; epicutis 30-50 µm thick, of yellowish
brown, thin-walled, collapsed, periclinal hyphae 1-3 µm diam., clamp connections absent;
subcutis 350-450 µm thick, of hyaline, thin-walled, interwoven hyphae, (3-)5-10(-25) µm
diam., in longitudinal section appearing periclinally elongate with lenses of isodiametric
hyphae, clamp connections absent, near gleba a band of collapsed, yellowish brown hyphae
overlying sterile locules lined by basidium-like inflated cells to 25 µm diam.; sutures absent.
Trama 100-200 µm thick, of hyaline, collapsed, compactly interwoven hyphae, 1-5(-6) µm
diam., in a gelatinised matrix, clamp connections absent. Basidia cylindrical to subclavate, up
to 8 µm diam. at apex, c. 5 µm at base, thin-walled, hyaline, (4-)6-spored. Spores smooth,
9-11 x 4-5.5 µm, oblong to ellipsoid, sometimes slightly asymmetric, apex obtuse, base
truncate, sometimes with a sterigmal attachment 1-1.5 µm long by 1.5 µm wide; wall c. 1
µm thick. Utricle absent. Spore colour in KOH pale olive brown singly, yellowish brown
in mass.
Habitat: Habitat: hypogeous or subepigeous in scrubland and modified forest, putatively
mycorrhizal with Leptospermum spp. Season: April to July.
Distribution: New Zealand
Notes: ETYMOLOGY: Named for New Zealand mycologist Joan M. Dingley, who has collected
many truffle-like basidiomycetes.
REMARKS: Gallacea dingleyae is distinguished from G. eburnea by its thinner
peridium and larger spores.
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