Lithosciadium

No map specified
Authors: Turcz.
Protologue: No protologue
Synonyms: No synonyms
Type species: Lithosciadium multicaule
Type species authors: Turcz.
Type species synonyms: Cnidium multicaule (Turcz.) Ledeb.
Number of species: 2
Distribution: Asia (N, Central)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 4.5-6.0 mm long; 2.5-3.0 mm broad; slightly compressed dorsally; with primary ribs; all primary ribs equal, keeled; mericarp ribs straight; with entire margin; calyx teeth obsolete; stylopodia flat; styles medium; recurved; cell borders indistinct; surface smooth or surface foveolate-tuberculate or surface undulate; cuticle sparse striate or cuticle striate with straight striae; exocarp cells small; commissure narrow, exocarp almost reaches carpophore; 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 obsolete; endocarp not lignified; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.

Note: СЭМ: Границы клеток неразличимы. поверхность ровная, волнистая или слабо бугорчато-ямчатая. кутикула струйчатая и расставленно струйчатая.