Sison

No map specified
Authors: L.
Protologue: Sp. Pl. ed. 1: 252
Synonyms: No synonyms
Type species: Sison amomum
Type species authors: L.
Type species synonyms: No synonyms
Number of species: 3
Distribution: Europe, Asia (SW, the Caucasus), Africa (adv.), Australia & Oceania (adv.)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 2.0-3.7 mm long; 1.0-1.2 mm broad; terete; with primary ribs; all primary ribs equal, keeled; mericarp ribs straight; with entire margin; calyx teeth prominent or calyx teeth obsolete; short; triangular; stylopodia flat or stylopodia low conical; styles short; recurved; cell borders indistinct; surface longitudinally sulcate; cuticle striate with straight striae; exocarp cells small; commissure intermediate; inner fibrous mesocarp obsolete; mesocarp parenchyma not lignified; 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 some ribs only; endocarp not lignified; crystals obsolete; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.

Note: СЭМ: На ребрах границы клеток неразличимы, поверхность продольно бороздчатая, кутикула струйчатая. Ложбинки – нет фото.