Ptychotis

No map specified
Authors: W.D.J.Koch
Protologue: Nov. Acta Acad. Leop.-Carol. Nat. Cur. 12, 1: 124
Synonyms: No synonyms
Type species: Ptychotis heterophylla
Type species authors: W.D.J.Koch
Type species note: nom. illeg.
Type species synonyms: Ptychotis saxifraga (L.) Loret & Barrandon
Number of species: 1
Distribution: Europe (W, Central, SW, S), Africa (N)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; lanceolate; with carpophore bifid to the base; beak absent; mericarps homomorphic; glabrous; 3.4-3.6 mm long; 0.8-1.0 mm broad; terete; with primary ribs; all primary ribs equal, keeled; mericarp ribs straight; with entire margin; calyx teeth prominent; short; triangular; stylopodia low conical; styles medium; recurved; exocarp cells large; commissure intermediate; inner fibrous mesocarp obsolete; mesocarp with continuous sclerenchyma layer; 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 all ribs; endocarp somewhat lignified; endosperm flat, slightly convex or slightly concave on commissural side; embryo with two cotyledons.