Altitudinal distribution and quantitative vegetation analysis of the monocotyledonous flora in Mt. Pangasugan, Leyte, Philippines

Pamela  M. Po-Abit,; Norma  O. Aguilar,

Altitudinal distribution and quantitative vegetation analysis of the monocotyledonous flora in Mt. Pangasugan, Leyte, Philippines

Abstract:

Po-Abit, P. M. and N. 0.Aguilar. 2001. Altitudinal Distribution and Quantitative Vegetation Analysis of the Monocotyledonous Flora in Mt. Pangasugan, Leyte, Philippines. Ann. Trop. Res 23 (2):79-95. The altitudinal distribution of monocotyledonous species in Mt. Pangasugan, Leyte, Philippines was described. Quantitative vegetation analysis to evaluate altitudinal effect was also done from the four sites established in the western side of the mountain. Hierarchical cluster analysis showed that the families Araceae, Gramineae, Orchidaceae, Palmae, and Zingiberaceae can adapt to wide environmental conditions since these groups were observed in all sites. Cyperaceae preferred the open, well lighted and cooler summit. Widely distributed species were Alocasia heterophylla, Alocasia zebrina, and Homalomena philippinensis (Araceae), Schizostachyum difusum (Gramineae), Languas haenkei, Languas illustris and Globba marantina (Zingiberaccae), Scleria scrobiculata (Cyperaceae), and Heterospathe philippinensis (Palmae). Discriminant analysis revcaled that the families Pandanaceae and Apostasiaceae, Palmae and Araccae, Liliaccae to Orchidaceae and Zingiberaceae were related based on their distribution and frequency in the different sites.

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