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Full-Text Articles in Life Sciences
Comparative Leaf Water Absorption Between Chaparral Island And Mainland Taxa: A Common Garden Experiment, Humera S. Mirza, Lauren M. Tucker, Rodrigo Méndez-Alonzo, Edward G. Bobich, Frank W. Ewers
Comparative Leaf Water Absorption Between Chaparral Island And Mainland Taxa: A Common Garden Experiment, Humera S. Mirza, Lauren M. Tucker, Rodrigo Méndez-Alonzo, Edward G. Bobich, Frank W. Ewers
Aliso: A Journal of Systematic and Floristic Botany
In California and other Mediterranean-type ecosystems, island species are typically exposed to more fog but less rain than mainland species. Because adaptations to absorb water from fog may conflict with those to minimize water loss, we hypothesized that island species should have greater fog absorption than their mainland congeners due to foliar uptake but at the cost of modifying other leaf structural and functional traits. To determine whether foliar water absorption is an adaptation to insularity, we compared seven physiological and anatomical leaf traits between congeneric island and mainland species of two genera, Ceanothus and Arctostaphylos, in a common …
Seed Morphology Of Some Plantago (Plantaginaceae) Species In Iran And Its Systematic And Phylogenetic Implications, Saeed Mohsenzadeh, Masoud Sheidai, Fahimeh Koohdar
Seed Morphology Of Some Plantago (Plantaginaceae) Species In Iran And Its Systematic And Phylogenetic Implications, Saeed Mohsenzadeh, Masoud Sheidai, Fahimeh Koohdar
Turkish Journal of Botany
Plantago is a cosmopolitan genus with approximately 200 species and various infrageneric classifications have been reported. In this study, the seed morphologies of 19 species of Plantago from Iran were studied and documented in detail using scanning electron microscopy and light microscopy. The studied species were grouped by using statistical analyses such as a minimum spherical cluster method based on Euclidean distance, principal coordinate analysis, and multidimentional scaling. We have described four types based on the seed shape and states of the inner side of the studied seeds: convex- angular type, convex-elliptic type, flat-elliptic type, and concave-elliptic type. In this …