FloraOfNewZealand-Ferns-12-PerrieBrownsey-2015-...
The family Gleicheniaceae is represented in New Zealand by three native genera (Dicranopteris, Gleichenia, and Sticherus) with collectively nine species, of which two are endemic. These genera have a distinctive morphology with pinnae that branch pseudodichotomously and which may extend indeterminately from buds between the pseudodichotomies. They are also all terrestrial plants with creeping rhizomes and exindusiate sori with few (2-20) sporangia. These genera can be distinguished from one another by their frond architecture, the number of sori per segment, the number of sporangia per sorus, venation patterns, and indumentum, which can be scaly or hairy. The single species of Dicranopteris in New Zealand is restricted to geothermal areas in the central North Island. The four species of Gleichenia are widespread, albeit less frequent in the east, and the endemic G. inclusisora is less common than the others. In Sticherus, the endemic S. cunninghamii is widespread and common, but more so in the west. Of the other Sticherus species in New Zealand, S. flabellatus is restricted to the northern North Island, and the other two are very uncommon in the western South Island. All of the non-endemic New Zealand species also occur in Australia, and several extend further afield. Of these, D. linearis and G. dicarpa are in particular need of taxonomic revision.
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| Pole | Hodnota |
|---|---|
| Datum aktualizace dat | 24. března 2015 |
| Datum aktualizace metadat | 24. března 2015 |
| Vytvořeno | 24. března 2015 |
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