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Authors: Albov
Protologue: No protologue
Synonyms: No synonyms
Type species: Chymsydia agasylloides
Type species authors: (Albov) Albov
Type species synonyms: Selinum agasylloides Albov
Number of species: 1
Distribution: Asia (the Caucasus).
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate or elliptic; with entire carpophore; beak absent; mericarps homomorphic; glabrous; 7.0-10.0 mm long; 4.8-5.3 mm broad; slightly compressed dorsally; with primary ribs; dorsal ribs narrow-winged; marginal ribs winged; mericarp ribs straight; with entire margin; calyx teeth obsolete; stylopodia low conical; styles medium; recurved; cell borders distinct or cell borders indistinct; surface undulate; cells isodiametric; anticlinal walls convex; outer cell walls flat or outer cell walls concave; cuticle smooth or cuticle sparse striate or cuticle rugulate; exocarp cells small; commissure intermediate; inner fibrous mesocarp obsolete; 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 large, present in all ribs; endocarp not lignified; crystals in exocarp only; endosperm with broad, shallow groove on commissural side; embryo with two cotyledons.

Note: СЭМ: Границы клеток местами неразличимы, поверхность волнистая. Местами границы различимы, клетки изодиаметрические, антиклинальные стенки выпуклые, наружные периклинальные стенки плоские или вогнутые. Кутикула гладкая или расставленно струйчатая, изредка морщинистая. Волоски 30-60 мкм длиной, сильно сплюснутые при основании, слабо сплюснутые близ верхушки, с закругленной верхушкой и морщинистой кутикулой.