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Orchid Inventory along The Wongaya Gede Trekking Route of Mount Batukaru, Tabanan, Bali - Indonesia Kania Delima Rizky; Ni Made Gari; I Made Saka Wijaya
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 1 (2026): February 2026
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i01.p09

Abstract

Orchids are among the most diverse groups of flowering plants, with a wide distribution. However, updated information on their distribution in Mount Batukaru, Bali, remains limited. The mountain was designated as a Cagar Alam (nature reserve) in 2020, highlighting the need for baseline data to support conservation efforts. This study aimed to document orchid species along the western slope through exploration surveys conducted from November 2024 to May 2025 across an elevation gradient from 831 to 2,276 m asl. Data were collected through direct field observations and photographic documentation, while species identification was verified using standard taxonomic references. A total of 25 species were recorded, representing two subfamilies, Epidendroideae (24 species) and Orchidoideae (one species, Corymborkis veratrifolia). Several species not reported in the previous study, including Arundina graminifolia, Calanthe zollingeri, Coelogyne speciosa, and Dendrobium spathilingue, were identified. Notably, Bulbophyllum ovalifolium corresponded to the MB2 (Mount Batukaru 2) variant previously reported from Mount Batukaru. The updated data can be used to evaluate the effectiveness of nature reserve designation and guide future conservation strategies.  
Anatomical Structure of Orchid Species (Orchidaceae) in Pengelengan Hill, Sukasada, Buleleng, Bali Ayu Annisa; Ni Made Gari; Made Pharmawati
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 2 (2026): June - August 2026 - In Progress
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i02.p04

Abstract

Orchids are among the plants with the greatest diversity in the world. Orchids have several specialized structures, such as velamen and cuticles, which help protect them against unfavorable environmental conditions. The anatomical structure of a plant closely relates to how it adapts to its environment. Anatomical characteristics can support data on previously known species, complementing analyses beyond morphological and molecular data related to taxonomic classification. The aim of this study was to examine the variation in leaf anatomical structures among several orchid species found in the Pengelengan Hills, Sukasada, Bali. Sample collection was conducted using exploratory methods, and leaf anatomical structures were analyzed using cross-sectional and peeling methods. Based on the overall research findings, there were variations in the leaf anatomical structures among the five orchid species found in Pengelengan Hills, Sukasada, Buleleng, Bali. Variations were observed in the paradermal sections, showing differences in the arrangement of epidermal tissues. The variations include epidermal cell arrangement, cell shape, stomatal type, and epidermal derivatives. The arrangement of epidermal cells was categorized into two types: aligned and non-aligned. The shapes of epidermal cells observed include pentagonal, hexagonal, elongated, and irregular. The stomatal types observed include tetracytic and paracytic, and epidermal derivatives such as non-glandular trichomes were found in species B. hyacinthoides and M. oblitterata.