? Lomagramma guianensis
Content
Distribution
Greater Antilles present, South America from Guiana to southern Brazil present
This species occurs in the Greater Antilles and in South America from Guiana to southern Brazil.
Notes
In habit, frond-form, venation and articulated pinnae it agrees closely with species of Lomagramma in Malesia and the Pacific. It differs in the following characters: acrophyll frond-apex deltoid, lobed, not pinna-like (as in bathyphylls of Malesian species); small scales not bullate; paraphyses hair-like with a glandularapical cell; spores with folded perispore as in Bolbitis and Lomariopsis. The paraphyses are much like the hairs on the margins of small scales of Lomariopsis, but scales on rhizome and frond are clathrate as in Bolbitis and Lomagramma. Ching included this species in Lomagramma, but its differences from Malesian species are such that I doubt its genetic unity with them; an independent origin in South America seems to me more probable, in which case a new genus might be established for it.