Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
A New Combination In Acmispon (Fabaceae: Loteae) For California, Luc Brouillet
A New Combination In Acmispon (Fabaceae: Loteae) For California, Luc Brouillet
Aliso: A Journal of Systematic and Floristic Botany
The new combination Acmispon argophyllus (A.Gray) Brouillet var. niveus (Greene) Brouillet is made.
Ovule Ontogenesis And Megagametophyte Development In Onobrychis Schahuensis Bornm. (Fabaceae), Abdolkarim Chehregani, Nayereh Tanomi
Ovule Ontogenesis And Megagametophyte Development In Onobrychis Schahuensis Bornm. (Fabaceae), Abdolkarim Chehregani, Nayereh Tanomi
Turkish Journal of Botany
The ovule ontogenesis and the megasporogenesis events in Onobrychis schahuensis Bornm. were studied with light microscopy. The primordium is tetra-zonate and gives rise to an anatropous ovule. The archesporium may consist of one or more archesporial cells, but only one of them undergoes meiosis, forming a linear shaped tetrad. Normally, only a single megaspore is functional, which is located in the chalazal position, while the others degenerate very soon. The young ovule is hemianatropous but the mature one is anatropous, crassinucellar, and bitegmic; integuments form a zig-zag micropyle. A 7-celled embryo-sac is formed corresponding to the Polygonum type. The present …
Seed Morphology Of Ebenus L. Species Endemic To Turkey, Fatma Bayrakdar, Zeki̇ Aytaç, Zeki̇ye Suludere, Selami̇ Candan
Seed Morphology Of Ebenus L. Species Endemic To Turkey, Fatma Bayrakdar, Zeki̇ Aytaç, Zeki̇ye Suludere, Selami̇ Candan
Turkish Journal of Botany
In the present study, seed surface morphology of species of the genus Ebenus L. in Turkey, all of which are endemic, was studied. E. plumosa var. speciosa has the biggest and E. laguroides var. laguroides has the smallest seeds. The seed shapes are spheroid in E. reesei, orbiculate in E. pisidica, and oblong-spheroid in others. Ornamentation is striate in E. macrophylla, rugose in E. haussknechtii, and reticulate or multi-reticulate in others. Microphylle is subterminal in all Turkish Ebenus species.
Karyology Of Ten Turkish Trigonella L. (Leguminosae) Species From Section Cylindricae Boiss., Esra Marti̇n, Hasan Akan, Murat Eki̇ci̇, Zeki̇ Aytaç
Karyology Of Ten Turkish Trigonella L. (Leguminosae) Species From Section Cylindricae Boiss., Esra Marti̇n, Hasan Akan, Murat Eki̇ci̇, Zeki̇ Aytaç
Turkish Journal of Botany
This study describes the karyotypes of 10 Turkish species of Trigonella L. belonging to section Cylindricae Boiss. (Leguminosae). Excluding the karyotypes of T. velutina Boiss. and of T. sibthorpii Boiss., which were previously studied, all of the other 8 species were studied here for the first time. The species of the section were gathered from different localities in Turkey, and it was determined that the somatic chromosome numbers for all species were the same (2n = 16). Also, satellite metaphase chromosomes were determined in T. velutina and T. strangulata.