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Full-Text Articles in Life Sciences
A Phylogenetic Study Of Arecaceae Based On Seedling Morphological And Anatomical Data, Flor M. Henderson, Dennis W. Stevenson
A Phylogenetic Study Of Arecaceae Based On Seedling Morphological And Anatomical Data, Flor M. Henderson, Dennis W. Stevenson
Aliso: A Journal of Systematic and Floristic Botany
A morphological and anatomical survey was carried out of seedlings of 62 taxa of palms representing all major groups. The data were analyzed using cladistic parsimony analysis. Seedling data were analyzed independently and combined with adult morphological data. Outgroup selection was made within the family using the calamoids and Nypa fruticans; outside the family, the monocot family Dasypogonaceae were used. The analysis with the calamoids and Nypa fruticans as outgroups resolved some of the major groups. The combined analysis, using both seedling and adult data and Dasypogonaceae as the outgroup, provided better resolution. Most of the major groups were …
Systematic Floral Anatomy Of Pontederiaceae, Michael G. Simpson, Darren H. Burton
Systematic Floral Anatomy Of Pontederiaceae, Michael G. Simpson, Darren H. Burton
Aliso: A Journal of Systematic and Floristic Botany
Twenty species of Pontederiaceae and six species of the outgroup families Haemodoraceae and Philydraceae were investigated with regard to floral anatomy, using standard histological methods and graphic reconstructions. Variation is described in several features, including functional carpel number, the distribution of floral aerenchyma, the presence of unusual floral epithelial cells, the presence, type, and distribution of tannin cells, crystal type and distribution, aspects of placentation, ovule number, number of ovule rows per carpel, and septal nectary presence. In order to better assess character homology, one of these features, placentation, was divided into three discrete characters: septal fusion, placenta position, and …
The Morphology And Anatomy Of Crocus Flavus Weston Subsp. Flavus (Iridaceae), Canan Özdemi̇r, Peli̇n Baran, Yurdanur Akyol
The Morphology And Anatomy Of Crocus Flavus Weston Subsp. Flavus (Iridaceae), Canan Özdemi̇r, Peli̇n Baran, Yurdanur Akyol
Turkish Journal of Botany
The morphological and anatomical characteristics of Crocus flavus Weston subsp. flavus (Iridaceae) were investigated. Cross-sections of the root, stem, corm and leaf parts of C. flavus subsp. flavus were examined and cross-sections of the root, stem and leaf demonstrated by illustrations. The corm-tunic is membranous, splitting into vertical fibres and lacking distinct horizontal rings at the base. The style is obscurely trilobed or slightly divided. These features are characteristic of C. flavus subsp. flavus. Differences such as shape of leaf keel and branching of style were determined by comparing the results obtained from this subspecies with the results obtained from …
Morphological, Anatomical And Palynological Investigation On Sonchus Erzincanicus Matthews (Asteraceae), Ali̇ Kandemi̇r, Serdal Makbul, Zafer Türkmen, Murat Yilmaz
Morphological, Anatomical And Palynological Investigation On Sonchus Erzincanicus Matthews (Asteraceae), Ali̇ Kandemi̇r, Serdal Makbul, Zafer Türkmen, Murat Yilmaz
Turkish Journal of Botany
In this study, Sonchus erzincanicus Matthews (Asteraceae) collected from Erzincan (Turkey) has been investigated by its leaf and stem anatomical features, pollen grain characteristics and ecological features. It is an endemic perennial herbs growing in slightly basic with low organic content soil. Stem cortex seen transparently is composed of parenchyma cells. The leaves are bifacial and have stomata cells that are anomocytic. The pollen type of the species is trizonocolporate. All anatomical studies including transverse sections of the stems and leaves and surface section of leaves are illustrated for the firs time.