Davallia canariensis (Linnaeus, 1753) J.E. Smith, 1793
Description
Rhizome without the scales 3.9-15 mm in diametre, white waxy under the scales. Scales red-brown, with pale border from base to apex, narrowed evenly towards the apex, not or seldom curling backward, usually bearing multiseptate hairs at least when young, with marginal setae at least in distal part or toothed, peltate, 8-10 mm long by 2-2.5 mm broad. Stipes pale to dark brown, adaxially grooved, 9-20 cm long, glabrous or with few scales. Lamina compound (D. canariensis Habitus), quadripinnate towards base and in the middle part, deltoid and broadest towards base, glabrous, 12-40 cm long by 10-40 cm broad, not or slightly dimorphous. Longest petiolules 6-25 mm long. Pinnae rhomboid, longest pinnae 9-20 cm long by 4-10 cm broad. Pinnules of at least the larger pinnae anadromous, ovate, longest pinnules 30-80 mm long by 10-40 mm broad. Ultimate leaflets linear oblong, lobed almost to the midrib. Ultimate segments or lobes obtuse or acute without a tooth, 1.5-3 mm long by 1-1.5 mm broad. Upper ridge at the junction of the costa and pinna-rachis with a swollen lip. Leaf axes glabrous. Margins of the lamina of each leaflet not thickened. Veins in sterile ultimate lobes frequently simple, not reaching the margin. False veins absent. Sori separate, frequently single on a segment, at the forking point of veins. Indusium also attached along the sides, pouch-shaped, oblong, about as wide as long, 1 mm long by 1 mm broad, upper margin not elongated, truncate or slightly rounded, separated from or even with lamina margin (D. canariensis SEM, picture of indusia). Lamina generally extending into a tooth only at the outside of a sorus.
Distribution
Europe: Portugal; Spain.
Africa: Morocco (Tangier); Madeira; Canary Islands; Cape Verde Islands.
Ecology
Epiphytic or epilithic, also on walls. Altitude 100-1000 m.