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| Sampson, F.B.. |
| A new species, Zygogynum vinkii, is described within the woody Ranalean family Winteraceae. It differs from other species of the endemic New Caledonian genus in having 302-371 stamens per flower. Unspecialized cells of the lower leaf surface are covered with cuticular papillae of a type hitherto unreported in Zygogynum. The three species with non-tetrad pollen, Z. pomiferum, Z. mackeei and Z. vinkii are compared. |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/524886 |
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| Sampson, F.B.. |
| Stamen venation is described for all species of Pseudowintera and an interspecific hybrid; the single species of Exospermum, several species of Belliolum, Drimys, Tasmannia (syn. Drimys sect. Tasmannia) and Zygogynum, as well as one species of Bubbia. One, two and three-veined stamens were found in several taxa, in contrast to previous reports that invariably stamens have a single (median) vein. The presence of isolated, apparently vestigial, lateral veins in many stamens of some taxa, seems evidence there has been an evolutionary reduction from three- to one-veined stamens. In view of the antiquity of the Winteraceae, this lends support to the hypothesis of Bailey and Nast, that three-veined stamens are a primitive feature of the woody Ranales. No obvious... |
| Tipo: Article / Letter to the editor |
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| Ano: 1987 |
URL: http://www.repository.naturalis.nl/record/526176 |
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