Canrightiopsis

Name

Canrightiopsis

Rank

Genus

Authors (Pub.)

Friis E. M. Grimm G. W. Mendes M. M. Pedersen K. R.  

Publication

Canrightiopsis, a new Early Cretaceous fossil with Clavatipollenites-type pollen bridge the gap between extinct Canrightia and extant Chloranthaceae [2015/7]

Journal

Grana

Volume

54

Issue

3

Page number

189

Year

2015

Parent Taxon

[Family] Chloranthaceae

Fossil Status

flowers

Type

Canrightiopsis intermedia

Diagnosis

Flower bisexual. Perianth lacking. Androecium of three stamens. Stamens restricted to one side of the ovary, borne about one third to two thirds up the ovary. Stamens leaving distinct scars on the surface of the fruits. Associated pollen of Clavatipollenites- type; pollen monocolpate with long, extended aperture; pollen wall semitectate, reticulate- columellate; reticulum heterobrochate; columellae long, irregularly distributed; colpus membrane verrucate-rugulate; colpus margin indistinct. Ovary semi-inferior inferred from the position of the stamen scars; unilocular with a single pendant ovule. Stigma not or only slightly raised, indistinct or hemispherical. Ovule orthotropous, bitegmic, endotestal; endotesta thick with one layer of palisade-shaped crystal cells with fibrous infillings; single layer of larger, thinwalled cells outside endotesta; tegmen of several layers of thin-walled cells. Fruit single-seeded berry. Fruit wall with resin bodies or cavities from presumed ethereal oil cells that on the outer surface of fruit wall are seen as stomata-like structures. Embryo in mature seeds tiny.