Exobasidium dracophylli McNabb 1962
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Details
Details
Exobasidium dracophylli McNabb, Transactions of the Royal Society of New Zealand 1 263 (1962)
Exobasidium dracophylli McNabb 1962
Biostatus
Nomenclature
McNabb
McNabb
1962
263
as 'dracophyllii'
ICN
Exobasidium dracophylli McNabb 1962
NZ holotype
species
Exobasidium dracophylli
Classification
Associations
View full associations recordhas host
Descriptions
Exobasidium dracophylli McNabb 1962
Type: Foliicolous Fungi; Description: Hymenium on the underside of deformed leaves; white, forming a continuous layer. Basidiospores cylindrical, 20–27 × 5–8 μm, smooth, hyaline; germinating spores 0–1-septate. Conidia none.
Distribution: Fiordland.; 1st Record: McNabb (1962b).
Significance: None. Causes hypertrophy, accompanied by elongation and a red-violet colouration in leaves and sheathing leaf bases.; Host(s): Dracophyllum prostratum, D. uniflorum.
Exobasidium dracophylli McNabb 1962
Dracophyllum prostratum Kirk.
Otago: Fiordland, Secretary Island, February 1960, R.F.R.Mc, 19668. Dracophyllum uniflorum Hook, f.
Otago: Fiordland, Secretary Island, February 1960, R.F.R.Mc, Type Collection P.D.D. Herb. No. 19664.
Systemic in shoots, causing hypertrophy in infected leaves and stems; hymenium hypophyllous, white, basidia at first protruding between epidermal cells in fascicles of 3-6, forming a continuous layer over undersurface of leaf at maturity, cylindrical to subclavate, projecting 25 µ.-45 µ. beyond cuticle, 5.0-6.5 µ. wide; sterigmata 2-(3), conical, 6.0-8.5 µ. long; basidiospores hyaline, smooth, cylindrical or slightly clavate, base not hooked, 20.0-27.0 x 5.0-8.0 µ,, average 23.5 x 6.5 µ., germinating spores 0-(l)-septate; conidia absent.
New Zealand.
Systemicum in surculis, efficiens hypertrophiam in frondibus et stirpibus infectis, hymenio albo, plerumque hypophyllio; basidia cylindrica vel subclavata, 3-6-nario disposita, 25?45 µ ultra cuticulam eminentia, 5.0-6.5 µ lata; sterigmata 2?(3), conica, 6.0?8.5 µ longa; basidiosporae hyalinae, leves, cylindricae vel tenuiter clavatae, basi non hamata, 20.0-27.0 (23.5) x 5.0-8.0 (6.5) µ, sporae germinantes 0?(1)-septatae; conidia absentia.
The hosts are endemic species confined to the mountains of the South Island and southern North Island (Allan 1961, p. 524, 526). In both species the infection is similar, causing hypertrophy in leaves, sheathing leaf bases and stems, accompanied by elongation of infected parts and a red-violet colouration.
Exobasidium dracophyllii is characterised by long, broad basidiospores and bisterigmate basidia.
Taxonomic concepts
Exobasidium dracophylli McNabb 1962
Exobasidium dracophylli McNabb (1962)
Exobasidium dracophylli McNabb 1962
Exobasidium dracophylli McNabb (1962)
Global name resources
Collections
Notes
typification
New Zealand, Otago: Fiordland, Secretary Island, February 1960, R.F.R.Mc., holotype PDD 19664
Metadata
1cb18a2c-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
17 October 1997
17 January 2025
