Aethusa

No map specified
Authors: L.
Protologue: Sp. Pl. ed. 1, 1753: 256
Synonyms: Cynapium Rupr., Wepferia Heist ex Fabr., nom. illeg.
Type species: Aethusa cynapium
Type species authors: L.
Type species synonyms: No synonyms
Number of species: 1
Distribution: Europe, SW Asia, N.Africa. N.America ( adv.)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 3.0-4.0 mm long; 2.0-2.5 mm broad; slightly compressed dorsally; with primary ribs; dorsal ribs keeled; marginal ribs narrow-winged; mericarp ribs straight; with entire margin; calyx teeth obsolete; stylopodia low conical; styles short; recurved; cell borders indistinct; surface foveolate-tuberculate; cuticle sparse rugulate; exocarp cells small; commissure broad, exocarp interrupted near edges of marginal ribs; inner fibrous mesocarp present, continous; mesocarp parenchyma partly composed of cells with lignified pitted walls; vascular bundles compact; situated in primary rib bases; vittae vallecular and commissural; solitary in furrows; two on commissural side; rib sectetory ducts small, present in all ribs; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.

Note: СЭМ: По гребню ребра границы клеток неразличимы, поверхность продольно бороздчатая, кутикула струйчатая. На склонах ребер и в ложбинках границы клеток неразличимы, поверхность бугорчато-ямчатая. кутикула гладкая или расставленно морщинистая.