Astomaea

No map specified
Authors: Rchb.
Protologue: No protologue
Synonyms: Astoma DC., nom. illeg., non S.F.Gray
Type species: Astomaea seselifolium
Type species authors: (DC.) Rauschert
Type species synonyms: No synonyms
Number of species: 1
Distribution: No distribution
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; didymous; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 1.5-2.7 mm long; 1.3-1.7 mm broad; terete; with primary ribs; all primary ribs equal, filiform; mericarp ribs straight; with entire margin; calyx teeth obsolete; stylopodia flat; styles medium or styles long; recurved; cell borders indistinct; surface irregularly rugate; cuticle smooth or cuticle tuberculate; exocarp cells small; commissure narrow, exocarp almost reaches carpophore; inner fibrous mesocarp obsolete; mesocarp parenchyma not lignified; vascular bundles compact; situated in primary rib bases; vittae cyclic; rib sectetory ducts small, present in all ribs; endocarp not lignified; crystals obsolete; endosperm with broad, shallow groove on commissural side; embryo with single cotyledon.

Note: mericarps curved and their upper parts are situated near to the bases СЭМ: Границы клеток неразличимы, поверхность беспорядочно морщинистая, кутикула гладкая или бугорчатая.