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THE PTERIDOPHYTES OF TAWAU HILLS PARK, SABAH A survey of the pteridophyte flora of Tawau Hills Park Sabah and its adjacent areas is presented, including a summary of their habitats and ecology. More than 150 numbers were collected or recorded, belonging to 83 species in 55 genera and 24families. |
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A PRELIMINARY SURVEY OF THE
COMMERCIAL TREES OF A six-day preliminary survey on the commercial trees of Tawau Hills Park were conducted. Commercial trees of significant size were recorded and fertile specimens collected The commercial trees were divided into the Dipterocarpaceae and non-Dipterocarpaceae. The encountered species were then listed according to their habitat of occurrence, namely, riverine, hill slopes and ridge-tops. A total of 24 species of Dipterocarpaceae and 31 species of non-Dipterocarpaceae was recorded
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NOTES ON THE FLOWERING PLANTS OF
TAWAU HILLS PARK, SABAH The flowering plants of Tawau Hills Park Sabah are as diverse as those of Tabin Wildlife Sanctuary, with the Rubiaceae, Euphorbiaceae, Melastomataceae and Annonaceae being the predominant families. Species-wise the genera Aglaia, Litsea and Polyalthia are predominant. A total of 169 species belonging to 112 genera and 52 families was collected from the area.
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ADDITIONS TO THE CHECKLIST OF FLOWERING
PLANTS OF A list is provided of 32 additional taxa of flowering plants collected in Tawau Hills Park, not reported by Latiff et al. in the preceding paper. Five families are listed that are not included in their list. Only four angiosperms and one gymnosperm collected by us are also reported by Latiff et al. Also included here are five families of pteridophytes with seven species. Fifteen incompletely determined collections are listed.
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ZINGIBERACEOUS SPECIES OF TAWAU HILLS PARK,
SABAH A survey of zingiberaceous species was carried out in Tawau Hills Park ranging from 100 to 300m. A total of 36 species from 14 genera are reported This represents nearly 23% of the estimated 160 species described for Sabah and Sarawak Among the present collection, 4 specimens are suspected to be new species and 2 specimens are possibly new varieties. Members of the tribe Alpineae are predominant in the ginger flora of the areas surveyed A checklist of zingiberaceous species is provided together with notes on their habitat and distribution.
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A PRELIMINARY
SURVEY OF ORCHIDS IN TAWAU HILLS PARK, SABAH ABSTRACT In the one-week expedition to the Tawau Hills Park, Sabah to conduct a preliminary survey of orchids in the area, only a small portion of the vast 28, 000 ha forest reserve was covered. Despite the limited area surveyed, a total of 118 species from 42 genera was observed and collected. A wide array of both ground and epiphytic orchids was obtained. Many could not be identified to species level because of the absence of flowers. Amongst the interesting and attractive species collected were Goodyera colorata?, Tainia latilingua, Calanthe pulchra, Grammatophyllum scriptum, Eria braddonii, Thecostele sp. and Coelogyne sp. The collection also showed that 3 specimens were suspected to be new or previously undescribed in Borneo. Two of them, both Dendrobium spp. (Specimens 5.4 and 6 18) have been confirmed to be new species (J.J Wood of the Royal Botanic Gardens, Kew, private communication). The third resembled Renanthera matutina in flower appearance, but differed from it in plant morphology, colour of flower and other characteristics. Among the 4 new records is Podochilus malabaricus (Specimen 1.26), previously thought to occur in Sri Lanka and South India only. Other new records for Sabah include Appendicula calcarata, Agrostophyllum hasseltii and Tainia latilingua.
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