Exobasidium fraseri McNabb 1962
Details
Details
Exobasidium fraseri McNabb, Transactions of the Royal Society of New Zealand 1 263 (1962)
Exobasidium fraseri McNabb 1962
Biostatus
Nomenclature
McNabb
McNabb
1962
263
as 'fraserii'
ICN
Exobasidium fraseri McNabb 1962
NZ holotype
species
Exobasidium fraseri
Classification
Associations
View full associations recordhas host
Descriptions
Exobasidium fraseri McNabb 1962
Type: Caulicolous Fungi; Description: Hymenium on hypertrophied stems; white, scanty, forming a semi-continuous layer. Basidiospores cylindrical, 16–23 × 3–7 μm, smooth, hyaline; germinating spores 0-septate. Conidia none.
Distribution: Mid Canterbury.; 1st Record: McNabb (1962b).
Significance: None. Known only from Cass, the type locality.; Host(s): Leucopogon fraseri.
Exobasidium fraseri McNabb 1962
Canterbury: Cass, May 1958, W. R. Philipson, Type Collection P.D.D. Herb. No. 19670.
C. fraseri is an endemic species occurring in both Islands (Allan 1961, p. 517). The symptom expression is an increase in the diameter of infected stems while leaves are not infected and remain unchanged.
Systemic, causing hypertrophy in infected stems; hymenium white, scanty, basidia at first protruding between epidermal cells in fascicles of 3-6, forming a semi-continuous layer over surface of stem at maturity, cylindrical to subclavate, projecting 25-35 µ beyond cuticle, 4.5-6.5 µ, wide; sterigmata 2, conical, 5-7 µ, long; basidiospores hyaline, smooth, cylindrical or nearly so, occasionally moderately hooked at base, 16.0-23.0 x 3.5-6.5 µ, average 19.0 x 4.5 µ., germinating spores aseptate; conidia absent.
New Zealand.
Systemicum, efficiens hypertrophiam in stirpibus infectis, hymenio albo, exiguo; basidia cylindrica vel subclavata, 3-6-nario disposita, 25-35/t ultra cuticulam eminentia, 4.5?6.5/i lata; sterigmata 2, conica 5-7/t longa; basidiosporae hyalinae, leves, cylindricae vel paene cylindricae, interdum modice hamatae ad basim, 16.0-23.0 (19.0) x 3.5-6.5 (4.5) µ, sporae germinantes aseptatae; conidia absentia.
Host: Cyathodes fraseri (A. Cunn.) Allan.
Characteristic features of Exobasidium fraserii are long, cylindrical, aseptate basidiospores and bisterigmate basidia.
Taxonomic concepts
Exobasidium fraseri McNabb 1962
Exobasidium fraseri McNabb (1962)
Exobasidium fraseri McNabb 1962
Exobasidium fraseri McNabb (1962)
Global name resources
Collections
Notes
typification
New Zealand, Canterbury: Cass, May 1958, W. R. Philipson, holotype PDD 19670, isotype BPI 137039, BPI 291519
Metadata
1cb1ad6b-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
17 October 1997
17 January 2025
