Pellaea angulosa (Bory ex Willd.) Baker
Synonyms |
Pteris angulosa (Bory ex Willd.) Baker |
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Common name |
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Description |
Rhizome short, creeping, up to 7 mm in diameter; rhizome scales linearin outline, subentire, up to 5 mm long pale chestnut to dark brown. Fronds monomorphic, tufted, erect to suberect, 4-8, 10.5-90 cm tall, coriaceous. Stipe6-50 cm long, black, shining, with a few brown scales near the base. Lamina pinnate in the distal half of the lamina with a single pinna on the top resembling the lateral pinnae, to 3- to 2-pinnate on the lower pinnae, sharply triangular in outline, 4.5-40 x 13-43 cm; pinnae with 5-7 pairs of pinnules; ultimate segments narrowly triangular to lanceolate in outline, forming a long drawn out point, rounded to cordate base articulated to a short black petiole, glabrous on both surfaces; veins hardly visible, anastomosing; rhachis, secondary rhachis and petioles black, with short brown hairs on the upper surfaces. Sori marginal, continuous to within a few milimeters of the apex and petiole; indusium entire, membranous, continuous. |
Notes | Can be seperated from Cheilanthes virides by the articulated pinnae, the obscure and anastomosing venation, the basiscopical developed basal pinnae. |
Derivation | angulosa: strongly angled; an allusion to the sharp angles created by the rhachis, secondary rachises and pinnules. |
Habitat | In tall, evergreen forest dominated by Chrysophyllum gorungosanum, on moist forest floor where an opening in the forest canopy occurs, evergreen forest in rocky places. |
Distribution worldwide | Africa, Madagascar, Mauritius, Réunion, Seychelles (Mahé). |
Distribution in Africa |
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Growth form |
Terrestrial. |
Literature |
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