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 Eichleriella hoheriae
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge)
Caption: Eichleriella hoheriae: i, spores; m, basidia; n, thick-walled, crystal-encrusted
dikaryophyses. |
Article: McNabb, R.F.R. (1969). New Zealand Tremellales - III. New Zealand Journal of Botany 7(3): 241-261 (http://www.rsnz.org/publish/abstracts.php).
Description: Fructifications firm-fleshy, resupinate,
thin, effused, indeterminate, originating as discrete circular or orbicular
patches, coalescing to form irregular, linear areas to 10 cm long, pruinose,
sordid white to creamy white when fresh, drying to a similarly coloured crust;
margins concolorous, fibrillose, adnate. In section 150-200 µm thick, consisting
of basal layer and hymenium. Basal layer 20-50 µm thick, composed of distinct,
interwoven, hyaline, thick-walled hyphae 2-4.5 µm diam. with walls to 2 µm thick,
lying parallel with substratum and typically crystal encrusted, clamp connections
sparingly present. Hymenium composed of dikaryophyses and basidia; dikaryophyses
abundant, arising vertically or obliquely, from basal hyphae, simple, straight
or flexuous, cylindrical to narrowly subclavate, aseptate, smooth basally, heavily
crystal encrusted apically, 3-7 µm diam., walls to 2.5 µm thick, projecting
to 60 µm beyond basidia; probasidia borne in groups on thinner walled, clamped,
fertile hyphae, scattered, broadly elliptical, proliferating through or near
basal clamp connections, 18.5-25 x 12.4-15.5 µm becoming 2-celled by longitudinal
septa or occasionally longitudinally cruciate-septate; sterigmata stout, cylindrical,
to 62 x 4 µm. Basidiospores curved-cylindrical to allantoid, hyaline, apiculate,
18.6-29.8 x 6.8-8.7-(10.2) µm. Germination by repetition or by stout germ tubes.
Habitat: Dead angiosperm wood.
Notes: The rather arid texture and thick-walled
basal and fertile hyphae indicate that Eichleriella hoheriae is allied
to E. subleucophaea. Unlike E. subleucophaea, an ascending layer
of thick-walled hyphae is absent in E. hoheriae and the simple dikaryophyses
arise directly from basal hyphae. E. hoheriae may be distinguished by
the thick-walled basal hyphae, simple, crystal encrusted dikaryophyses with
thickened walls and reduced lumina, and large curved-cylindrical to allantoid
basidiospores.
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