Karatavia

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Authors: Pimenov & Lavrova
Protologue: No protologue
Synonyms: No synonyms
Type species: Karatavia kultiassovii
Type species authors: (Korovin) Pimenov & Lavrova
Type species synonyms: Selinum kultiassovii Korovin
Number of species: 1
Distribution: Asia (Middle: S Kazakhstan)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; lanceolate; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 9.4-10.5 mm long; 3.1-3.5 mm broad; strongly compressed dorsally; with primary ribs; dorsal ribs filiform; marginal ribs narrow-winged; mericarp ribs straight; with entire margin; calyx teeth prominent; short; filiform; stylopodia low conical; styles medium; recurved; cell borders distinct or cell borders indistinct; surface undulate; cells isodiametric; anticlinal walls convex; outer cell walls concave; cuticle smooth; exocarp cells small; commissure broad, exocarp interrupted near edges of marginal ribs; 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; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.

Note: СЭМ: На спинных ребрах границы клеток неразличимы, поверхность продольно бороздчатая, кутикула расставленно струйчатая. На краевых ребрах и в ложбинках местами границы клеток неразличимы, поверхность волнистая, местами границы слабо различимы, клетки изодиаметрические, антиклинальные стенки выпуклые, наружные периклинальные вогнутые, кутикула гладкая