Oenanthe

No map specified
Authors: L.
Protologue: Sp. Pl. ed. 1: 254
Synonyms: Phellandrium L., Actinanthus Ehrenb., Dasyloma DC., Karsthia Raf., Cyssopetalum Turcz., Oenosciadium Pomel, Globocarpus Caruel ex Parl., Phellandrion Bubani, Stephanorossia Chiov., Volkensiella H.Wolff
Type species: Oenanthe fistulosa
Type species authors: L.
Type species synonyms: No synonyms
Number of species: 40-45
Distribution: Europe, Asia, Australia, Australasia, Africa (NW, NE, trop.), N America (adv.)
Bibl.: No bibliography
No illustration specified

Features: fruits free, not separating into mericarps; ovate or orbicular or elliptic or lanceolate; carpophore obsolete; beak absent; mericarps homomorphic; glabrous; 2.0-5.0 mm long; 1.0-2.0 mm broad; slightly compressed dorsally or terete; with primary ribs; all primary ribs inconspicuous or all primary ribs equal, filiform; dorsal ribs filiform; marginal ribs narrow-winged; mericarp ribs straight; with entire margin; calyx teeth prominent; equal to stylopodium or exceeding stylopodium; lanceolate; stylopodia conical; styles medium or styles long; erect or spreading; cell borders distinct; cells isodiametric; anticlinal walls concave; outer cell walls convex or outer cell walls dome-shaped; cuticle rugulate; exocarp cells small; commissure broad, exocarp interrupted near edges of marginal ribs; inner fibrous mesocarp obsolete; mesocarp with sclerenchyma cell groups or mesocarp with continuous sclerenchyma layer; vascular bundles compact; vittae vallecular and commissural; solitary in furrows; two on commissural side; rib sectetory ducts small, present in some ribs only; endocarp not lignified; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.

Note: rib secretory ducts only in marginal ribs (at commissural side), several СЭМ: На ребрах границы клеток неразличимы, поверхность беспорядочно и продольно морщинистая, продольно бороздчатая. На валиках в ложбинках слабо различимы границы. Клетки изодиаметрические, антиклинальные стенки вдавленные, наружные периклинальные выпуклые или слегка смятые купола. Кутикула преимущественно морщинистая, границы клеток скульптурированные.