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Rhagadolobium filicinum (Berk. & Broome) Arx 1962

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Rhagadolobium filicinum (Berk. & Broome) Arx 1962
Rhagadolobium filicinum (Berk. & Broome) Arx 1962

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Indigenous, non-endemic
Present
New Zealand
Political Region

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Arx
Berk. & Broome
(Berk. & Broome) Arx
Müller, E.; Arx, J.A. von 1962: Die Gattungen der didymosporen Pyrenomyceten. Beiträge zur Kryptogamenflora der Schweiz. 11(2).
1962
42
ICN
Rhytisma filicinum Berk. & Broome 1873 [1875]
species
Rhagadolobium filicinum

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Fungi
Ascomycota
Dothideomycetes
Parmulariales
Parmulariaceae
Rhagadolobium
filicinum

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Dingley, J.M. 1972: Some foliicolous ascomycetes on ferns in Australia and New Zealand. The genera Rhagadolobium P. Henn. & Lind. and Lauterobachiella Theiss. & Syd. New Zealand Journal of Botany 10(1): 74-86.

Lauterbachiella filicina (Berk. & Broome) Dingley 1972

on Cyathea gigantea (Wall. ex Hook.) HoItt. (syn. Alsophilae gigantea Wall. ex Hook.) Ceylon: Central Province, Galagaira, May, 1858 on Cyathea rebeccae (v. Miffier) Domin. (syn. Alsophila rebeccae v. Muller) Australia: North Queensland, F. v. Muller (K) (type collection of Asterina alsophilae Cke. & Mass.) on unknown host Australia: Queensland, Russell R. (K) on Cyathea smithii Hook f. New Zealand: Auckland, L. Waikaremoana, J. M. Dingley Nov. 1956 (PDD 16077) There is a need for further collections of this species; in the three Kew collections spores are immature. In the New Zealand collection they are 9-12 X 3-3.5 g, similar to those given for the species by Theissen and Sydow (1915). The species differs from L. dicksoniafolia in that loculi may be annular and pseudoparaphyses are present in hymenium. The conidial stage Queenslandia pulchella Batista & Maia in Batista and Ciferri (1959) appears to be a misinterpretation of immature tissues in developing ascogenous loculi.

Ascomata on upper and lower surfaces of fern leaves, more or less circular, 13-3 mm diam., when mature entirely superficial, black, crustose, at first subcuticular, mycelium of ascomata only in contact with leaf tissue through stomata; 15-20um thick, 80 A at loculi. Outer wall of radially arranged, pigmented and agglutinated mycelium. Hypostroma of pigmented and thickened hyphae. Loculi annular or linear 60-80um diam., up to 0.5 mm Ion., covered by agglutinated mycelium which at maturity cracks and exposes hymenium. Hymenium of closely compacted asci, pseudoparaphyses absent. Asci elliptical or clavate 50-6011 X 5-8 um bitunicate, 8 spored, ascospores biseriately or uniseriately arranged. Ascospores one septate, elliptical, 9-12 X 3-3.5 um hyaline.

Ceylon, Australia, New Zealand.

On living leaves of Cyathea spp. TYPE: On Alsophila gigantea Wall. ex Hook., Ceylon, Central Province, Galagaira, May, 1858 (Thwaites, 453)

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) 2005: Fungi on trees and shrubs in New Zealand. Fungi of New Zealand. 4. Fungal Diversity Press.

Lauterbachiella filicina (Berk. & Broome) Dingley 1972

Type: Foliicolous Fungi; Description: Ascomata stromatic, perithecial, aggregated, globose, black, 0.1 mm in diameter, embedded in a superficial, crustose, circular, black stroma, 1–3 mm in diameter; on both surfaces of fronds. Asci elliptical to clavate, 50–60 × 5–8 μm. Ascospores elliptical, 1-septate, 9–12 × 1–4 μm, smooth, hyaline.
Distribution: Bay of Plenty, Taranaki, Taupo, Gisborne.; 1st Record: Dingley (1972).
Significance: None.; Host(s): Cyathea smithii.

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87307c4a-14ea-4577-b4f4-3cedaaf96f80
scientific name
Names_Fungi
21 November 2012
26 December 2013
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