Genus Itajuba Ricardi-Branco, M. Torres, Tavares, de Souza Carvalho, P.G.E. Tavares, Arruda Campos in P. Ray Clim. Change & Reg./Loc. Resp. 190. 22 May 2013
Links by genus
- Authors (Pub.)
- Ricardi-Branco F.
Tavares S. S.
de Souza Carvalho I.
Tavares P. G. E.
Arruda Campos A. C.
- Itajuba yansanae gen and sp nov of Gnetales, Araripe Basin (Albian-Aptian) in Northeast Brazil [2013/5]
- Authors (Book)
- Ray P.
- Climate Change and Regional/Local Responses
- Page number
- Parent Taxon
- [Order] Gnetales
- Fossil Status
- leafy stems (with reproductive organs)
- Itajuba yansanae
- Plant with branch system bearing terminal female cones with striate stem at
internodes. Main stem woody, with swollen nodes. Xylem consisting of vessels and tracheids, with tracheids more abundant than vessels; both with alternately distributed bordered pits. Long thin fibre-tracheids. Uniseriate rows of vascular rays composed of procumbent cells. Reproductive shoot with ovulate cones in terminal branchlets, 1 ovulate/seed per cone,
surrounded by pairs of bracts. Ovate seed with ornamented external surface.