Rhagadolobium filicinum (Berk. & Broome) Arx 1962

Caption:

Details

Name scientific

Rhagadolobium filicinum (Berk. & Broome) Arx 1962

Preferred name

Rhagadolobium filicinum (Berk. & Broome) Arx 1962

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Indigenous, non-endemic

Present

New Zealand

Political Region

Nomenclature

Authors

(Berk. & Broome) Arx

Original authors

Berk. & Broome

Combination authors

Arx

Publication place

Müller, E.; Arx, J.A. von 1962: Die Gattungen der didymosporen Pyrenomyceten. Beiträge zur Kryptogamenflora der Schweiz. 11(2).

Year published

1962

Publication page

Nomenclatural code

ICN

Basionym

Rhytisma filicinum Berk. & Broome 1873 [1875]

Taxonomic rank

species

Canonical form

Rhagadolobium filicinum

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Dothideomycetes

Order

Parmulariales

Family

Parmulariaceae

Genus

Rhagadolobium

Species

filicinum

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Cyathea smithii Hook.f.

Dingley, J.M. (1972)

has host

Cyathea smithii Hook.f.

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)

has host

Alsophila smithii (Hook.f.) R.M.Tryon 1970

Pennycook, S.R. (1989)

has host

Alsophila glabra Hook.

PDD (1 records from [Not available].)

has host

Cyathea albifrons Vieill. ex E. Fourn.

PDD (1 records from [Not available].)

has host

Cyathea smithii Hook.f.

PDD (5 records from [Not available].)

has host

Dicksonia antarctica

PDD (1 records from [Not available].)

is host of

Veronaea Cif. & A.M. Conte 1957

PDD (1 records from [Not available].)

Descriptions

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

Collections Examined

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.

Description

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.

Distribution

Ceylon, Australia, New Zealand.

Habitat

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

Description

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

Distribution: Bay of Plenty, Taranaki, Taupo, Gisborne.; 1st Record: Dingley (1972).

Notes

Pathogenicity

Significance: None.; Host(s): Cyathea smithii.