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Pollen morphology of the Euphorbiaceae with special reference to taxonomy
In the present study pollen morphology of the Euphorbeaceae is treated as an additional character in taxonomy. Besides the greater part of the genera occurring in the system of PAX and K. HOFFMANNExpand
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Pollen morphology of the Phyllanthus species (Euphorbiaceae) occurring in New Guinea
Thirty-eight species from New Guinea have been examined and their pollen grains could be grouped into nine pollen types. Five of these types are more or less morphologically related. The largestExpand
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Pollen morphology of the dichapetalaceae with special reference to evolutionary trends and mutual relationships of pollen types
Pollen grains of all three genera of Dichapetalaceae (Dichapetalum, Stephanopodium and Tapura) comprising about 150 species have been studied. Twenty-nine pollen types were recognized and the familyExpand
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An Elucidation of the Microreticulate Structure of the Exine
Abstract A short review of basic definitions relating to the term “tectum” is given. Pollen grains with a tectum perforatum are described and defined. A new term “microreticulate”, is proposed forExpand
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Pollen morphology and taxonomy of the Phyllanthus species (Euphorbiaceae) native to New Caledonia
Abstract Forty-six species from New Caledonia have been examined; all belong to the subgenus Gomphidium , s.l., except two, one belonging to the subgenus Isocladus sect. Macraea , the other to theExpand
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Convergence in some interesting pollen types of Phyllanthus (Euphorbiaceae)
Convergence in two groups of resembling pollen types (I, the "areolate" group; II, the group without ectoapertures and an inordinate ornamentation) was discussed. Both groups represent advancedExpand
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On the pollen morphology of Scyphosyce and Dorstenia (Moraceae)
Abstract The pollen grains of the two species of Scyphosyce are alike and show distinct resemblances with those of several species of Dorstenia. Pollenmorphological data confirm the taxonomicExpand
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Pollen Morphology of the American species of the subfamily Costoideae (Zingiberaceae)
A pollen-morphological study has been carried out on the American Costoideae, a subfamily of the Zingiberaceae ( Costus L., Dimerocostus O. Kuntze, and Monocostus K. Schum.). Four pollen types andExpand
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A palynological study in Geonomoid palms
In a previous palynological study in Cocoid palms the present authors (Punt and Wessels Boer, 1966) were able to demonstrate a rather strong but not absolute correlation between the pollen types andExpand
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Pollen Morphology and Taxonomy in the Loganiaceae
The Loganiaceae is a heterogeneous, eurypalynous family with colpate, colporate or porate pollen grains (Erdtman 1952). Some years ago Dr. Leeuwenberg, specialist in the taxonomy of AfricanExpand
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