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| Registros recuperados: 10 | |
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| Hovenkamp, P.. |
| This monograph deals with the systematics and phylogeny of the genus Pyrrosia (Polypodiaceae). It is one of the results of the Polypodiaceae-project that is being carried out under the supervision of Prof. Dr. Hennipman (State University, Utrecht). With this treatment of Pyrrosia, the group of the Platycerioid ferns (sometimes regarded as a subfamily) will be completed. The total number of genera in this group is reduced to two: Platycerium and Pyrrosia. Other publications dealing with this group are Hennipman & Roos (1982), dealing with Platycerium; and Ravensberg & Hennipman (1986), dealing with the former genera Drymoglossum and Saxiglossum, now in Pyrrosia. Together with Hennipman & Ravensberg’s account this forms the first complete account... |
| Tipo: Article / Letter to the editor |
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| Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/508235 |
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| Hovenkamp, P.. |
| The morphology and taxonomy is discussed of the Polypodiaceous genera Selliguea, Holcosorus, Crypsinus, Phymatopsis, Grammatopteris, Pycnoloma, Oleandropsis and Crypsinopsis, based on a revision of species from Malesia and the Pacific. All these genera are merged in Selliguea. Fiftytwo species are revised, 32 new combinations are made. See also the description of a new species on p. 108, added after the proof stage. |
| Tipo: Article / Letter to the editor |
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| Ano: 1998 |
URL: http://www.repository.naturalis.nl/record/525705 |
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| Hovenkamp, P.. |
| This sixth supplement to the original and invaluable Index Filicum continues the tradition of cross-referencing all basionyms to their new names. It covers the period from 1976 to 1990, a mere 15 years in the nearly 250 years that separate us from Linnaeus. Yet it contains 344 pages full of new species and new combinations (statistics on the numbers of each category are not provided). The dates for this volume are not very strict: important publications before 1976 that were not fully indexed in the previous volume have been incorporated in the main body, not in the Addenda, Corrigenda et Emendanda (ACE). Compare, for instance, the mere 16 new combinations in Sphaeropteris made by R.M. Tryon in 1970 listed in the previous Supplement with the nearly 100... |
| Tipo: Article / Letter to the editor |
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| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/525805 |
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| Prud’homme van Reine, W.F.; Polak, A.M.; Hovenkamp, P.; Stevens, P.F.; Wilde, W.J.J.O. de. |
| This important book contains a clear, modern introduction to the cytology, morphology and systematics of the algae, providing a wealth of information for all those studying or working with these organisms. It takes in account recent re-evaluations in algal systematics and phylogeny, and these two main fields are the most extensively covered. The re-evaluations have been made necessary by insights provided by molecular genetics, electron microscopy, and new life history studies. The introduction gives thought about classification, evolution and phylogeny and is directly followed by the chapters on the main algal groups. There the principal characteristics of each group are outlined, usually followed by chapters on size and distribution of the division, as... |
| Tipo: Article / Letter to the editor |
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| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/525979 |
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| Vink, W.; Leenhouts, P.W.; Balgooy, M.M.J. van; Hovenkamp, P.; Vermeulen, J.J.; Wilde, W.J.J.O. de; Heel, W.A. van. |
| The Hamameli(i)dae comprise, according to the new classification by Thorne, about one quarter of the genera to one third of the families of the Dicotyledonae. The symposium held at the University of Reading, U.K, 22-25 March 1988, highlighted some of the many questions concerning phylogeny and evolution in this group as a contribution to the insight in the main lines of dicotyledonous evolution. The symposium report contains a wealth of information on a wide variety of topics. The phylogenetic position of the Hamamelidae in a wider or narrower sense, or parts thereof, is subject of a number of papers. F. EHRENDORFER reviews the existing diverging interpretations and concludes that the Hamamelidae can be regarded as ancient and partly relictual survivors... |
| Tipo: Article / Letter to the editor |
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| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/525453 |
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| Registros recuperados: 10 | |
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