IUCN threat status:

Least Concern (LC)

Morphology

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Description

Stems creeping or ascending, frequently branched. Leaves ± arching, 1--3 m × 12--50 cm. Rachis rounded abaxially, decidedly grooved adaxially. Pinnae 24--30(--40), usually not overlapping, 10--34 × 1.3--7 cm; proximal pinnae always distant, frequently rounded at tip; costal areoles 3 or more times longer than wide; distal 6--12 pinnae of fertile leaves bearing sporangia. Sporangia spread over abaxial surface of distal pinnae in fertile leaves; paraphyses stalked, ending with single isodiametric, irregularly lobed cell. Spores (37--)57(--72) µm diam., surface minutely tuberculate. 2 n = 60.

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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

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