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The rare species Dacryodes nervosa (H.J. Lam) Leenh. was originally described by as Santiria nervosa in 1932. This species was only known from two herbarium collections in Perak and Johor. In this current paper, we have added six localities where species is known, namely from Pasoh and Sungai Menyala Forest Reserves in Negeri Sembilan, Rengam Forest Reserve in Johor, Piah Forest Reserve from Perak and Balok and Panching Forest Reserves in Pahang. Additional information of fruit characters based on sole specimen from Pasoh Forest Reserve is given. [ABSTRACT FROM AUTHOR]

A study related to species composition and diversity of sapling was conducted in the coastal hill forests at Pulau Pangkor, Perak. Six study plots of 20m x 20m (0.04 ha) each were established in Pangkor Utara Forest Reserve (two plots) and Pangkor Selatan Forest Reserve (four plots), making a total area of 0.24 ha. The composition of sapling species was represented by 460 individuals consisting of 52 species, 46 genera and 30 families. Dipterocarpaceae and Rubiaceae recorded the highest number of species with seven species each. At genus level, Diospyros recorded the highest number of species with three species. Sapling density of the study area was 1917 individuals/ha, where Dipterocarpaceae has the highest density with 588 individuals/ha while at species level, Hopea beccariana recorded 483 individuals/ha. Dipterocarpaceae was the most important family with Importance Value Index (IVi) of 21.11%, while the most important species was Hopea beccariana (IVi = 16.98%). Shannon Diversity Index, Evenness Index, and Margalef Richness Index were 2.99, 0.76, and 8.32, respectively. [ABSTRACT FROM AUTHOR]

A study on the composition of forest floor vegetation in a small forest gap in Bangi Forest Reserve was conducted. The inventory was carried out in the forest gap formed due to the lightning strike which had caused some big trees died directly. The assessment was made about one year after the forest gap was formed in May 2012. In a survey of 0.018 ha plot, a total of 1222 individuals of vascular plants were recorded which include climbers, ferns, herbs, palms, and seedlings. The compositions of forest floor vegetation were represented by 141 species from 108 genus and 54 families. Pioneer species and late seral recorded the highest density. Two species of Macaranga, viz. M. conifera and M. gigantea were among the densest species with 4778 ind/ha and 4111 ind/ha. This study contributed the data of the forest floor in the forest gap in the lowland dipterocarp forest. [ABSTRACT FROM AUTHOR]

Pulau Aur is located in the South China Sea ca. 74 km east of Mersing, Johor. The terrain of Pulau Aur, which covers an area of ca. 19 km2, is almost entirely composed of granite rocks and several short beaches providing a unique diversity of flora on the island. A study of flora that focuses on the species of seed plants mainly trees has identified as many as 135 species belonging to 104 genera and 47 families in the primary, regenerated, secondary forests and sandy coastal vegetation. It is hoped that the information from the specimens collected and recorded can be used as a reference and help other researchers as well as stakeholders in ecotourism management and forest conservation plan. [ABSTRACT FROM AUTHOR]

A preliminary checklist of flowering plants in Ma'okil Forest Reserve, Johor is reported. A total of 352 species in 201 genera and 73 families was recorded. Euphorbiaceae which is represented by 40 species is the most speciose family and Syzygium (Myrtaceae) is the largest genus with 19 species. A total of 36 taxa found here are endemic to Peninsular Malaysia. One of the interesting findings in this study is the presence of Alphonsea johorensis (Annonaceae) which is uncommon, and only previously recorded from south-east Johor. [ABSTRACT FROM AUTHOR]

In this paper the distribution of a rare taxon, Margaritaria indica f. indica on the islands of south-east Peninsular Malaysia is discussed. The data were obtained from past literatures and combined with those from the ecology plots and surveys conducted throughout those islands, especially Pulau Tioman, Pulau Aur and Pulau Sibu. [ABSTRACT FROM AUTHOR]

A descriptive study was conducted to determine species composition, community structure, and biomass of trees was carried in a riparian forest at Hulu Sungai Sedili Besar, Johor. Four plots of 25 m x 20 m were established at the study site which covered a total area of 0.2 ha. All trees with diameter at breast height ≥ 5 cm were measured, tagged, identified and recorded. A total of 34 families, 79 genera and 124 species from 399 individuals was enumerated. Euphorbiaceae was the most speciose family represented by 17 species, while Syzygium was the biggest genus with seven species. The tree stand structure showed that 80% of the trees were in 5.0 cm-14.9 cm diameter class. The total basal area was 29.70 m²/ha in which Euphorbiaceae contributed the highest basal area with 8.13 m²/ha, whilst Elateriospermum tapos showed the highest basal area with 3.83 m²/ha. In terms of density, Euphorbiaceae also recorded the highest of 475 ind/ha, whilst species of Cleistanthus myrianthus (Euphorbiaceae) and Tristaniopsis whiteana (Myrtaceae) indicate the highest density of 160 ind/ha each. The value of Shannon Diversity Index in this study was 4.19 (Hmax = 4.82). Euphorbiaceae was the most important family recorded in this study area with Family Important Value Index of 18.89%, whilst Elateriospermum tapos was the most important species with Important Value Index of 5.76%. [ABSTRACT FROM AUTHOR]

A preliminary checklist of flowering plants in Ulu Sedili Forest Reserve, Johor is given. The forest is classified as a logged-over freshwater swamp and riparian forests dominated by Tristaniopsis whiteana. A total of 263 species belonging to 148 genera and 58 families was recorded. Euphorbiaceae represented by 35 species is the most speciose and Syzgium (Myrtaceae) is the biggest with 12 species and a total of 21 taxa endemic to Peninsular Malaysia is also recorded. The interesting findings in this study include the occurrence of Shorea peltata, a rare dipterocarp to Peninsular Malaysia, Macaranga baccaureifolia which can only be found in Johor and Sabah and Schizostachyum lengguanii which is previously recorded in Tasik Chini, Pahang. [ABSTRACT FROM AUTHOR]

Since after independence in 1960 to 1990, most of the primary lowland dipterocarp forest in Peninsular Malaysia have been logged for economic purposes and face the regeneration process. A descriptive study was conducted to determine species composition, community structure, diversity and biomass of trees in two logged-over lowland dipterocarp forests in Johor and Pahang state namely Kluang Forest Reserve (KFR) and Remen Cereh Forest Reserve (RCFR). Two plots of 50 m x 20 m were established at the each study site which covered a total area of 0.4 ha (0.2 ha each). All trees with diameter at breast height (DBH) of 5 cm and above were measured, tagged, identified and recorded. A total 238 individuals from 142 species, 96 genera and 47 families were enumerated in KFR whilst 33 families, 85 genera and 122 species from 283 individuals were enumerated in RCFR. Euphorbiaceae and Myristicaceae were the most speciose family in KFR represented by 10 species each, while in RCFR Euphorbiaceae was the most speciose family represented by 14 species. Sorensen similarity index showed low values of similarity were displayed at species level between the study sites. The ordination diagram constructed using Detrended Correspondence Analysis (DCA) demonstrated floristic variation between the two study plots whereby the DCA obviously separated plots between sites. The total basal area (BA) recorded in KFR was 45.36 m²/ha in which Dipterocarpaceae contributed the highest with 17.11 m²/ha at family level, whilst Dryobalanops oblongifolia ssp. occidentalis led the species level with 8.29 m²/ha. In RCFR, the total basal area (BA) was 41.37 m²/ha in which Dipterocarpaceae contributed the highest with 8.74 m²/ha, whilst Sapium baccatum showed the highest basal area at species level with 3.32 m²/ha. Dipterocarpaceae was the most important family in both study sites with Family Important Index (FIVi) of 16.13% in KFR and 16.12%, in RCFR. In KFR the most important species with Important Value Index (IVi) of 7.27% belongs to Dryobalanops oblongifolia ssp. occidentalis and in RCFR Hopea dyeri was the most important species with Important Value Index (IVi) of 5.48%. [ABSTRACT FROM AUTHOR]

The Remen Cereh Forest Reserve is the largest forest reserve in Kuantan, Pahang. In this study, a preliminary checklist of flowering plants of a lowland dipterocarp forest of this forest is provided. A total of 350 species from 198 genera and 62 families was recorded. Dicotyledons are represented by 52 families, 180 genera and 332 species while the monocotyledons by 10 families, 18 genera and 18 species. Euphorbiaceae was the most speciose family with 39 species followed by Moraceae with 23 species. The largest genus was Ficus with 15 species followed by Syzygium with 12 species. A total of 20 endemic taxa to Peninsular Malaysia was also recorded. The genus with highest total number of endemic taxa was Syzygium with three species. A total of 65 species in the study area was found to be listed in IUCN conservation status. Further botanical collections and documentation in Remen Cereh Forest Reserve needs to be expandad into the primary forest of Gunung Tapis. [ABSTRACT FROM AUTHOR]

A study was conducted to determine species composition, community structure, and biomass of trees in a hill dipterocarp forest at Gunung Tebu Forest Reserve, Terengganu. Five plots of 80 m x 20 m were established at the study site which covers a total area of 0.8 ha. All trees with diameter at breast height of 5 cm and above were measured, tagged, identified and recorded. A total of 47 families, 137 genera and 251 species from 681 individuals was enumerated. Euphorbiaceae was the most speciose family represented by 16 genera and 24 species, while Diospyros was the biggest genus with 18 species recorded. The tree stand structure showed 65.49% of the trees were in 5.0-14.9 cm diameter class. The total basal area was 56.20 m²/ha in which Dipterocarpaceae contributed the highest with 13.62 m²/ha, whilst Shorea longisperma showed the highest basal area with 4.05 m²/ha at species level. In terms of density, Euphorbiaceae was recorded with the highest density of 110 ind/ha, whilst Streblus elongatus was the species with highest density of 25 ind/ha. The value of Shannon Diversity Index in this study was 5.16 (Hmax = 5.53). Dipterocarpaceae was the most important family recorded with Family Important Index of 14.53%, whilst Shorea longisperma was the most important species with Important Value Index of 3.85%. The total biomass recorded was 715.45 t/ha in which 608.89 t/ha was contributed by above ground biomass and 106.56 t/ha from below ground biomass. [ABSTRACT FROM AUTHOR]

A botanical inventory was conducted in the primary upper hill dipterocarp and hill dipterocarp forest at Tranum Forest Reserve, Pahang. A total of 466 species from 269 genera and 102 families was recorded. Angiosperms represented by 101 families while gymnosperm by a single family, Gnetaceae. Dicotyledons represented by 85 families while monocotyledons represented by 16 families. Rubiaceae was the most speciose family with 37 species (7.94 %) followed by Annonaceae and Lauraceae, each with 27 species (5.79 %). The largest genus was Syzygium with 14 species (3.00 %) followed by Diospyros with 10 species (2.15 %). A total 32 taxa were endemic to Peninsular Malaysia whilst another 23 taxa were categorized as new records for Pahang state. A total of 235 taxa was also listed as the new additional list for Fraser's Hill flora. [ABSTRACT FROM AUTHOR]