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Matoniaceae

Erect terrestrial ferns of moderate to large size or pendulous, straggling ferns on cliffs, rhizome moderate to long-creeping with spaced fronds, densely clothed with brownish multiseptate hairs, solenostelic, polycyclic with 2 concentric cylinders of vascular tissue, with or without central bundle. Fronds long-stipitate, the stipe not articulate to the rhizome, with a single U- or V-shaped vascular bundle, the lamina +/- flabellate, the branches close and pedate, deeply pinnatifid, or, sympodial, the rachis and stipe long, the suppressed lateral branches pseudodichotomous at the very base with a dormant medial bud, the bud often developing into a secondary sympodial rachis, the segments leafy throughout, linear, or dichotomous, or +/- sympodial; the lobes entire, costate, glabrous, the veins simple or 1 - 3 times forked, free to the margin or infrequently anastomosing. Sporangia few, in discrete round sori in a single medial row either side of the costae, on the acroscopic branch of a vein-group, at the ends of simple veins, or, at the union of numerous veins, completely covered by a peltate deciduous indusium, paraphyses lacking, pedicel very short, thick, annulus oblique, incomplete, often crooked, without a definite stomium. Spores trilete, tetrahedral, translucent, smooth or very finely verrucose.

Distribution

A family of 2 genera, each probably monotypic, confined to Malesia. Both genera are rare in Papuasia, represented by a single species.

Literature

Johns, R.J. & Bellamy, A. 1979. The ferns and fern allies of Papua New Guinea. Part three: the Matoniaceae. Pp. 17.1 - 17.7. (published by the P.N.G. Office of Forests).

Genera in Papuasia

1 Fronds erect, compact, branching pedate-dichotomous; no dormant proliferous buds...

Matonia (1)

Fronds drooping and elongate, branching pinnate; dormant or proliferating buds at the apices of some branches... Phanerosorus (1)

Note

Matonia can look superficially to similar to some Sticherus in the Gleicheniaceae.


Updated November 1999 by Jim Croft (jim.croft@environment.gov.au)