Distribution and flowering of six Chusquea bamboos in the Cordillera de Talamanca, Costa Rica
Chusquea bamboos form a significant part of the natural oak (Quercus spp.) vegetation in the costa Rican mountains and volcanoes, often being the dominant understorey plants and competitively strong after disturbance. The most abundant species of Chusquea in the Cordillera de Talamanca (C. longifolia, C. patens, C. foliosa, C. subtilis, C. tomentosa and C. talamancensis) show an altitudinal zonation and distributional differences between the Atlantic and Pacific slopes. C. longifolia is associated with lower montane forest, C. patens and C. foliosa with lower and upper montane forests, and C. subtilis, C. tomentosa and C. talamancensis with upper montane forest. The 6 species had mass flowering with interspecific overlap of the flowering periods in the same area within a 10-yr period (from 1983) and regenerated from seeds. Except for C. talamancensis (sect. Swallenochloa) all species belong to the sect. Longifoliae. C. talamancensis was also the only species which showed some overlap of the flowering time over geographically distant populations. Therefore, it is suggested as a suitable species for the study of natural hybridization and speciation in these bamboos.
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| Format: | biblioteca |
| Published: |
1994
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| Subjects: | BAMBUES, TAXONOMIA, DISTRIBUCION GEOGRAFICA, FLORACION, COSTA RICA, |
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