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| Bruggen, H.W.E. van. |
| After the treatment of Jumelle in the Flore de Madagascar fam. 23 (1936) substantial additions were made and much material has accumulated. Instead of 7 species of Aponogeton distinguished by Jumelle, 11 are recognized in the present revision, among which 3 are new to science. Moreover it was found that the epithet of the laceplant — up till now fenestralis — has to be changed in madagascariensis. All names have been properly typified; all types could be examined by the author. Quite a few species were observed in cultivation, thanks to generous support from overseas. Special attention has been paid to a detailed examination of the seed structure and that of the embryo and also to flower dimorphism. Descriptions are given of all species and two keys are... |
| Tipo: Article / Letter to the editor |
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| Ano: 1968 |
URL: http://www.repository.naturalis.nl/record/525719 |
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| Dijkstra, S.J.; Bruggen, H.W.E. van; Visser, A. de. |
| Lilium bulbiferum L. in Limburg. De korte mededeling in Gorteria 6(8), 1973, p. 140 betreffende de recente vondst van Lilium bulbiferum L. subsp. croceum (Chaix) Arcang. deed mij herinneren aan het feit, dat omstreeks 1943 Dr. A. de Wever te Nuth mij een bloeiende tak van deze soort stuurde uit de omgeving van Doenrade, van een roggeakker. De eigenaar van deze akker had daar jarenlang steeds rogge verbouwd. Een bloemist had hem ƒ 25,— geboden om de bollen te mogen rooien. Toen de eigenaar hierop niet wenste in te gaan, werden een paar nachten later alle planten eruit getrokken en werd de rogge platgetrapt. Het exemplaar, dat De Wever mij toestuurde, is opgenomen in mijn herbarium, dat onlangs werd afgestaan aan het Instituut voor Systematische Plantkunde... |
| Tipo: Article / Letter to the editor |
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| Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/526534 |
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| Bruggen, H.W.E. van. |
| In this revision are recorded 9 species from continental Asia and Indonesia, and 2 from New Guinea. Of the latter 1 is new to science. Some species frequently confused in the past could be described exactly. All names have been properly typified and all existing types could be examined by the author. For A. loriae and A. echinatus a neotype was chosen. Descriptions are given of all species and a key is provided for their identification. A drawing of the generative parts of all species has been made and a distribution map of each species has been prepared. All examined sheets are enumerated in an identification list. |
| Tipo: Article / Letter to the editor |
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| Ano: 1970 |
URL: http://www.repository.naturalis.nl/record/524692 |
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| Bruggen, H.W.E. van. |
| Perennial waterplants with a tuberous, elongate or cylindrical and often branched rootstock or rhizome which produces a tuft of leaves and the inflorescences. Leaves submerged and/or floating (very seldom emerged), with a mostly distinct midrib and one or more pairs of parallel main nerves, connected by numerous cross-veins. Inflorescence long-peduncled, emerging above the water surface, in bud enveloped by a caducous or rarely persistent spathe, composed of 1 (in Mal.) or 2-11 spikes. Flowers (in Mal.) bisexual, spirally arranged, turned towards all directions. Tepals 2, mostly persistent, rarely caducous. Stamens 6, in 2 whorls. Ovaries 3(-4-5), free, sessile, narrowed into the style with a stigmatic ridge on the inner side; ovules 2-8 per carpel. Fruits... |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/532661 |
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| Bruggen, H.W.E. van. |
| Anacamptis pyramidalis (L.) Rich. te Wijk aan Zee in 1974. Na de explosie van deze orchidee in 1973, toen op de noordhelling van een duin ten zuiden van Wijk aan Zee 1550 bloeiende exemplaren konden worden geteld, leverde een telling op 11 juli 1974 961 exemplaren op. Dit getal ligt altijd nog beduidend hoger dan in 1972 (400 exx.) en de jaren tot 1972, waarin nooit meer dan 120 exx. werden geteld. In de duinen ten noorden van Wijk aan Zee, waar twee jaar geleden nog meer dan 600 exx. bloeiden, werden niet meer dan 6 exx. gevonden. |
| Tipo: Article / Letter to the editor |
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| Ano: 1974 |
URL: http://www.repository.naturalis.nl/record/528083 |
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| Bruggen, H.W.E. van. |
| In this revision 4 native species are recorded from Australia, among which 3 are new to science. Of the well-known Aponogeton elongatus F. v. M. ex Bth. 3 new forms are distinguished. Furthermore one S. African species, A. distachyon L. f. is cultivated and to some extent naturalized in Victoria. A key is provided to these 5 species. A possible sixth species, probably provenant from Queensland, is in cultivation but is yet only known in sterile state. Figures and an identification list of material studied are provided. |
| Tipo: Article / Letter to the editor |
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| Ano: 1969 |
URL: http://www.repository.naturalis.nl/record/525859 |
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