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| Registros recuperados: 3.574 | |
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| Jenkins, P.D.. |
| An investigation was made into the systematics of white-toothed shrews (Crocidura) occurring in Malaya and Indonesia. Most of the forms recorded from this area have been found to represent one of four species: C. fuliginosa (Blyth, 1855), C. attenuata Milne-Edwards, 1872, C. maxi Sody, 1936 or C. monticola Peters, 1870, while the status of a few others remains unresolved at this stage. Each species is discussed and distinguishing features are given in tabular form. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.84. |
| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/319266 |
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| Willemse, L.P.M.. |
| The genera Microlaena R. Br., Petriella Zotov, and Tetrarrhena R. Br. are included in Ehrharta Thunb. (Gramineae-Ehrharteae), which necessitates four new combinations in the latter. In Malesia Ehrharta is represented by two taxa originally included in Microlaena: E. diplax F. v. Muel. var. giulianettii (Stapf) L. P. M. Willemse (M. giulianettii Stapf) and E. stipoides Labill. var. stipoides [M. stipoides (Labill.) R. Br. var. stipoides]. Descriptions of and notes on these taxa are given. |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/525192 |
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| Geesink, R.. |
| Commercially available tree altimeters are expensive and heavy, and my personal experience with these instruments is thus minimal. During my last expedition I only used it now and then in the base camp to correct my ’feeling for estimation’. I have little doubt that colleagues will recognize these feelings. After my return I regretted this attitude to some extent and tried to design a cheap and light alternative device. It is drawn on the next page, and easy to construct: Make a copy of the drawing. Photocopies are generally not exact enough, causing differences to 5 m in this scheme, due to barrel- and cushionshaped distortion by the lens. I advise to copy the drawing by hand on transparent paper. Glue this copy (preferably with epoxy-resin to make it... |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/533507 |
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| CHOUDHURY, M. M.. |
| As sementes, estacas, bulbos, tubérculos, etc., são órgãos de propagação vegetal e eficientes veículos de disseminação de fitopatógenos em campos agrícolas. Como as sementes contribuem com aproximadamente 90% para a propagação das culturas, muitos fungos, bactérias, virus e alguns fitonematóides podem apresentar-se associados as mesmas, causando severos danos as culturas. Estes fitopatógenos, em condições favoraveis, sobrevivem nas sementes de um ano para outro; ou por período mais longo durante o armazenamento. São apresentados no trabalho os danos causados por sementes infectadas ou contaminadas, os meios de disseminação de fitopatógenos pelas sementes e como evitar a introdução de doenças na região. Com relação a colheita, dois aspectos básicos devem... |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Propagação; Seed; Diseases; Propagation; Disease.; Planta; Doença; Semente.. |
| Ano: 1982 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131789 |
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| Schalkwijk, Joost; Jansen, Gerrit M.. |
| During our stay in the Nothofagus region near Osorno from April to July 1979, we collected an interesting species of Amanita, Unlike A. diemii Sing., which appeared to be rather common in this area, the new species was collected only once. Our Amanita is undoubtedly identical with A. gayana (Mont.) Mont., as described by Singer (1969: 151). However, checking the protologue of Agaricus gayanus Mont. (1853: 332), we soon discovered that we were dealing with two different species. Therefore we have to describe our (and Singer’s) species as a new one, naming it A. aurantiovelata. |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/531924 |
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| Barendregt, A.; Dries, P.J.L. van den; Sipman, H.J.M.. |
| The well-known and widespread lichen species Cladonia furcata (Huds.) Schrad. is usually very constant in its chemistry: fumarprotocetraric acid is its main secondary metabolite, sometimes accompanied by atranorin. Recently a new chemical strain, characterised by the presence of psoromic acid instead of fumarprotocetraric acid or atranorin, was found in Portugal by the first two authors during phytosociological investigations of heath vegetations. The plants are preserved in the herbarium of the Institute of Systematic Botany, University of Utrecht (U), leg. Barendregt & v.d. Dries nr. 1-2 (U). Morphologically the plants with psoromic acid represent the slender form of C. furcata. which is the predominant form in lowland western Europe (fig. 1). The... |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/534898 |
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| Wägele, Johann Wolfgang. |
| Cyathuva numeae n.sp. from New Caledonia is the sixth blind species of the genus Cyathura Norman & Stebbing, 1886, found in hypogean habitats. The new species lives in the interstitia of coastal sand or gravel, like C. milloti Chappuis et al., 1956, from Réunion. A close relationship to the other species is not obvious; the specific shape of the appendix masculina can be derived from the carinata-type. In contrast to the slender species, C. curassavica Stork, 1940, and C. specus Bowman, 1965, in the new species the adaptations to hypogean life are limited to the small body size and reduction of the eyes. |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/505318 |
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| Registros recuperados: 3.574 | |
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