Abstract
The aim of this study was to identifiy the stomata morphological characters of Pteridophyta in the ​​Parangkikis Pagerwojo Waterfall area, Tulungagung. The first step of stomata observation was preparation of the abaxial leaf slice. The preparation was carried out by the replica method. Stomata character studied include types and size of stomata, the number of stomata and epidermis cells, and value of the stomatal index. The result of this study showed that stomata types of Pteridophyta were polocytic and anomocytic. Of the 15 Pteridophyta species observed, the all of stomata type were polocytic, except Selaginella which had type stomata anomocytic. Stomata oval was found in Selaginella intermedia and Phymatosorus sp., slightly oval (kidney) was found in Asplenium apogamum, Dryopteris sp., Asplenium normale, Nephrolepis bisserata, Nephrolepis davallioides, Asplenium nidus, and Pteris longipinnula sp., spherical was found in Dicranopteris linearis, Cyclosorus arida, Goniophlebium percussom, and Goniophlebium manmiense, and nonconcave was found in Coniogramme fraxinea. Stomata size affected the number of stomata. If the size of the stomata was small, the number of stomata was increasing. The highest number of stomata was found in D. linearis, which was 362, while the least number of stomata was S. intermedia, which was 18. Data on the number of stomata and epidermal cells were used to determine the stomatal index. The highest stomata index was found in D. linearis, which was 22.05% and the lowest was C. fraxinea, which was 5.44 %.
 
 Keywords: Anomocytic, Parangkikis, polocytic, Pteridophyta, stomata
Highlights
Stomata is one of the plant characters used by taxonomists in the classification system to identify plant species
The result of this study showed that stomata types of Pteridophyta were polocytic and anomocytic
2013) Peranan Morfologi dan Tipe Stomata Daun dalam Mengabsorbsi Karbon Dioksida pada Pohon Hutan Kota UNHAS Makassar
Summary
Sampel spesies Pteridophyta diambil dari Kawasan Air Terjun Parangkikis. Sampel yang diambil berupa daun paku dewasa. Hal ini disebabkan daun paku dewasa lebih mudah digunakan untuk bahan pembuatan preparat. Sedangkan bentuk daun paku muda adalah menggulung [9] sehingga sulit dibuat preparat dengan metode replika. Sampel yang diambil kemudian dimasukkan ke dalam kantong plastik agar daun tidak rusak dan layu. Sampel dalam kantong plasik dibawa ke laboratorium IPA UIN Sayyid Ali Rahmatullah Tulungagung
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