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Registros recuperados: 2.475 | |
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Djajasasmita, Machfudz. |
The species of the genus Corbicula known from Indonesia are alphabetically listed and noted. Sixteen out of the 35 described species are considered valid, i.e. C. gustaviana, C. moltkiana, C. sumatrana, C. tobae and C. tumida from Sumatra; C. javanica, C. pulchella and C. rivalis from Java; C. bitruncata and C. pullata from Borneo; C. lindoensis, C. loehensis, C. matannensis and C. subplanata from Celebes; C. australis from Timor and C. debilis from New Guinea. A Philippine species, C. squalida, is added as a new record. |
Tipo: Article / Letter to the editor |
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Ano: 1977 |
URL: http://www.repository.naturalis.nl/record/505295 |
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Diegenbach, P.C.; Meijssen-de Ridder, E.. |
Morphometric analysis was carried out on wing muscles of the House Fly (Musca domestica), ranging from the pupation period to death. In the first week a clear increase was found in the percentage of food reserve consumed by the cell components. Both fibrils and sarcosomes increase in circumference during the first week. The sarcosomes then fuse. After the first week few changes occur. The sarcosomal volume increases in male flies. No disintegration or degeneration of the muscle cells appears with old age. Even the fact that the wing of the male flies exhibits abrasion earlier than that of females cannot be correlated with changes in the wing muscles. The ratio of fibrils to sarcosomes is greater than two to one. This ratio differs in males and females. A... |
Tipo: Article / Letter to the editor |
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Ano: 1977 |
URL: http://www.repository.naturalis.nl/record/504215 |
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Holttum, R.E.; Tryon, R.M.. |
When Dr. R.E. Holttum kindly submitted the following essay review of two papers on Cyatheaceae, a suggestion that Dr. R.M. Tryon be enabled to reply was welcomed by both pteridologists. The editor feels grateful to them for their contribution. First Dr. R.E. Holttum: GASTONY, G.J. Spore morphology in the Cyatheaceae. I. The perine and sporangial capacity: General considerations. Amer. J. Bot. 61 (1974) 672-680. GASTONY, G.J. & R.M. TRYON. Ibid. II. The genera Lophosoria, Metaxyas Sphaeropteris, Alsophila and Nephelea. Amer. J. Bot. 63 (1976) 735-758. |
Tipo: Article / Letter to the editor |
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Ano: 1977 |
URL: http://www.repository.naturalis.nl/record/533491 |
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Registros recuperados: 2.475 | |
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