Back
Chengia
Genus Chengia Y. Yang, L.-B. Lin, Q. Wang BMC Evol. Biol., 13(72): 8. 27 Mar 2013
- Name
- Chengia
- Rank
- Genus
- Authors (Pub.)
- Yang Y.
Lin L.-B.
Wang Q.
- Publication
- Chengia laxispicata gen. et sp. nov., a new ephedroid plant from the Early Cretaceous Yixian Formation of western Liaoning, Northeast China: evolutionary, taxonomic, and biogeographic implications [2013/3]
- Journal
- BMC Evolutionary Biology
- Volume
- 13
- Issue
- 72
- Page number
- 8
- Year
- 2013
- Parent Taxon
- [Phylum] Gnetophyta
- Fossil Status
- reproductive organs
- Type
- Chengia laxispicata
- Diagnosis
- Reproductive shoots branch oppositely at swollen nodes. Internodes bear numerous longitudinal striations. Leaves that subtend lateral branches are long and linear. Female spikes are terminal to twigs or are subtended by the leaf, possessing multiple pairs of loosely arranged female reproductive units. Nodes and internodes of female spikes prominent. Female reproductive units consist of decussately opposite seeds and subtending bracts. Seeds enveloped, with distal micropylar tube.
Links by parent
Species
Links by generics
Species