Smyrnium

No map specified
Authors: L.
Protologue: Sp. Pl. ed. 1: 262
Synonyms: Anosmia Bernh., Olusatrum N.M.Wolf
Type species: Smyrnium olusatrum
Type species authors: L.
Type species synonyms: No synonyms
Number of species: 7
Distribution: Europe, Asia, Africa (N, NW)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate or orbicular or didymous; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 2.8-9.0 mm long; 2.0-6.0 mm broad; terete; with primary ribs; dorsal ribs keeled; marginal ribs filiform; mericarp ribs straight; with entire margin; calyx teeth obsolete; stylopodia low conical or stylopodia conical; styles medium; recurved; cell borders distinct; cells isodiametric; anticlinal walls concave; outer cell walls convex or outer cell walls with small cones; cuticle sparse striate; exocarp cells small; commissure narrow, exocarp almost reaches carpophore; inner fibrous mesocarp obsolete; mesocarp parenchyma not lignified; vascular bundles compact; situated in primary rib bases; vittae cyclic; rib sectetory ducts small, present in some ribs only; endocarp not lignified; crystals obsolete; endosperm with mushroom-like groove on commissural side; embryo with two cotyledons.

Note: there is hypoderma layer under exocarp СЭМ: На ребрах границы клеток неразличимы, поверхность гладкая, кутикула струйчатая. В ложбинках границы клеток слабо различимы, клетки изодиаметрические, антиклинальные стенки вдавленные, наружные периклинальные выпуклые или с коническими бугорками, кутикула расставленно струйчатая, 2-3 складки на 10 мкм, складки широкие, 1,5 – 3 мкм.