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Moon, H.-K.; Vinckier, S.; Walker, J.; Smets, E.F.; Huysmans, S.. |
The pollen morphology and ultrastructure of the subtribe Salviinae were investigated with light, scanning electron, and transmission electron microscopy. In addition, cladistic analyses of the obtained morphological data, supplemented with rbcL data from GenBank, were conducted in order to assess the phylogenetic signal of palynological characters. Salviinae pollen is small to large, oblate to prolate in shape, with a circular to slightly elliptic amb, and mostly hexacolpate. Perovskia abrotanoides appears to be distylous and shows a significant pollen dimorphism between pin and thrum flowers. The sexine ornamentation of the genera Lepechinia and Chaunostoma is perforate, while the ornamentation of other genera is bireticulate. Perovskia expresses a unique... |
Tipo: Article / Letter to the editor |
Palavras-chave: Pollen morphology Salviinae sexine ornamentation symplesiomorphic condition improved resolution bootstrap support values molecular phylogenetic analyses ultrastructure 42.41; 42.58. |
Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/449556 |
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Moon, H.-K.; Vinckier, S.; Smets, E.F.; Huysmans, S.. |
This study provides new pollen data of 52 representative species belonging to all 12 genera in the currently classification of the subtribe Nepetinae, and considers the possible presence of orbicules for the first time. Pollenmorphology and ultrastructure were investigated with light, scanning electron and transmission electron microscopy. Nepetinaepollen is small to large (P = 16–65 µm, E = 17–53 µm), oblate to prolate (P/E = 0.7–1.6) in shape and mostly hexacolpate (sometimes octocolpate). The exine stratification in all taxa studied is similar and characterized by unbranched columellae and a continuous, granular endexine. Sexine ornamentation in the Nepetinae is bireticulate, microreticulate or perforate. In perforate and microreticulate pattern a... |
Tipo: Article / Letter to the editor |
Palavras-chave: Nepetoidea orbicules palynology Nepetinae sexine ornamentation ultrastructure 42.41; 42.48; 42.58. |
Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/449553 |
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