Dichoropetalum

No map specified
Authors: Fenzl
Protologue: No protologue
Synonyms: Chabrea Raf. , Schlosseria Vucotinovic, Johreniopsis Pimenov, Holandrea Reduron et al.
Type species: Dichoropetalum alpinum
Type species authors: Fenzl
Type species synonyms: No synonyms
Number of species: 26
Distribution: Asia, Europe, Africa (N, NW)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate or orbicular; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 3.0-12.0 mm long; 2.2-7.0 mm broad; strongly compressed dorsally; with primary ribs; dorsal ribs filiform or dorsal ribs keeled; marginal ribs narrow-winged; mericarp ribs straight; with entire margin; calyx teeth obsolete; stylopodia flat or stylopodia low conical or stylopodia conical; styles medium; recurved; cell borders distinct or cell borders indistinct; surface irregularly rugate or surface foveolate-tuberculate; cells elongated; anticlinal walls convex or anticlinal walls as narrow grooves above the middle lamella; outer cell walls flat; cuticle sparse striate or cuticle sparse rugulate; exocarp cells small; commissure broad, exocarp interrupted near edges of marginal ribs; inner fibrous mesocarp obsolete; mesocarp parenchyma not lignified or mesocarp parenchyma partly composed of cells with lignified pitted walls; vascular bundles compact; situated in primary rib bases; vittae obsolete in mature fruit or vittae vallecular and commissural or vittae vallecular only; solitary in furrows or 2–5 in each furrow; two on commissural side or 4–10 on commissural side; rib sectetory ducts small, present in all ribs or rib sectetory ducts large, present in all ribs or rib sectetory ducts obsolete; endocarp not lignified; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.

Note: СЭМ: На спинных ребрах границы клеток различимы, клетки удлиненные, антиклинальные стенки в виде узкого желобка или узкого валика, наружные стенки плоские, или клетки неразличимы, поверхность продольно морщинистая или гладкая. В ложбинках местами клетки как на спинных ребрах, местами неразличимы, поверхность беспорядочно морщинистая или ямчато-бугорчатая. На боковых ребрах клетки изодиаметрические, с выпуклыми антиклинальными стенками и вдавленными наружными периклинальными. Кутикула гладкая, расставленно морщинистая и расставленно струйчатая.