No map specified
Authors: Endl.
Protologue: Gen. Pl., 1839 10: 787
Synonyms: Caldasia Lag. nom. illeg., non Willd.
Type species: Oreomyrrhis andicola
Type species authors: (Kunth) Endl.
Type species synonyms: Caldasia cherophylloides Lag.
Number of species: 25
Distribution: Asia (SE, E), Austalasia, Australia, Oceania, N America (Mexico), C America, S America (W trop., temp.)
Bibl.: No bibliography
No illustration specified

Features: fruits separating into mericarps; ovate or lanceolate; with carpophore bifid to the base or with carpophore bifid to the middle; beak absent or with short beak; mericarps homomorphic; glabrous or sparsely pubescent all over; 3.0-5.5 mm long; 2.0-2.5 mm broad; terete; with primary ribs; all primary ribs equal, filiform; calyx teeth obsolete; stylopodia low conical or stylopodia conical; styles short or styles medium; erect or recurved; exocarp cells small; commissure intermediate; inner fibrous mesocarp obsolete; mesocarp parenchyma not lignified, destroyed at maturity (exocarp separating); vascular bundles compact; vittae vallecular and commissural; solitary in furrows; two on commissural side; rib sectetory ducts obsolete; endocarp not lignified; crystals obsolete; endosperm flat, slightly convex or slightly concave on commissural side or endosperm with broad, shallow groove on commissural side; embryo with two cotyledons.

Note: short beak (?)