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The difference between Sorbus matsumurana and S. commixta on flowering and fruiting at Mts. Norikura in Gifu Prefecture with special reference to their vertical distributions
- Source :
- 植物地理・分類研究 = The journal of phytogeography and taxonomy. 65(2):95-98
- Publication Year :
- 2017
- Publisher :
- 植物地理・分類学会, 2017.
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Abstract
- 乗鞍岳(岐阜県飛騨山脈南部,標高3026 m; Fig. 1)の高山帯から亜高山帯にかけての森林の林縁部にはウラジロナナカマドSorbus matsumurana (Makino) Koehne が,亜高山帯から山地帯にかけての森林の林縁部にはナナカマドS. commixta Hedl. が,それぞれ普通に分布する。我々は乗鞍岳のナナカマド Sorbus属の近縁種の調査を行い,垂直分布と生育地の相違について明らかにした(後藤ほか 2012)。ここでは前報に引き続き,乗鞍岳に生育するナナカマド属の近縁種,ウラジロナナカマドとナナカマドの標高差による開花・結実の相違について,報告する。<br />Flowering and fruiting timings were compared between Sorbus matsumurana and S. commixta with special reference to their vertical distributions at Mts. Norikura in Gifu Prefecture. In S. commixta, flowering firstly started in populations at low elevation and gradually progressed to those at higher elevations. By contrast, S. matsumurana populations in upper alpine belt bloomed earlier than those in lower alpine belt. Since alpine plants have to complete their reproductive processes during a short summer season, earlier blooming might be adaptive in the alpine habitat. The reversal observed in S. matsumurana might be explained by the earlier-blooming strategy of alpine plants.
Details
- Language :
- Japanese
- ISSN :
- 03886212
- Volume :
- 65
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- 植物地理・分類研究 = The journal of phytogeography and taxonomy
- Accession number :
- edsair.jairo.........14459db81d202fac56df49ec83033316