Keywords :
กายวิภาคศาสตร์ใบ,
เฟิร์น,
สถานีวิจัยสิ่งแวดล้อมสะแกราช,
leaf anatomy,
fern,
sakaerat environmental research station
บทคัดย่อ :
Leaf blade anatomical study of ferns at Tham Jong Ang Waterfall in Sakaerat Environmental Research Station, Wang Nam Khieo District, Nakhon Ratchasima Province were conducted from May 2015 to April 2016. Eighteen species including fourteen genera and eight families were studied. The purpose of this research was to determine the vegetative anatomy for the identification of ferns. The specimens were investigated by leaf epidermal peeling or clearing and transverse sectioning of lamina and examination by light microscope. The generalized anatomical characteristics in all species studied are as follow: 1) epidermal cells are jigsaw-like or polygonal, anticlinal walls are straight, straight and slightly curve, rough and concave; 2) shapes of epidermal cell in transverse section are quadrangular or irregular, with 1-2 layers; 3) stomata are typical type, usually presence in the abaxial, stomatal index are 9.45-28.57 and the patterns of stoma are paracytic, polycytic, diacytic, anisocytic and anomocytic stomata; 4) trichomes are unicellular or multicellular trichomes; 5) some species are presence air space in the mesophyll; 6) mesophyll of most species studied consist of similarly palisade and spongy cells which presence more than one layer of irregular or globose in shapes; 7) shapes of main veins are curve on both sides, straight on both sides, straight on the upper and curve on the lower, v-shaped on the upper and curve on the lower and heart-shaped on the upper and curve on the lower; 8) vascular bundles in main veins are amphicribal bundle which phloem surrounding by xylem. Vascular bundle shapes are circular, triangular, oval and x-shaped with 1-3 vascular bundles; and 9) inclusions are red staining body and tannin. Using these characteristics an anatomical key was constructed to assist identification of the species. However, these anatomical characteristics are not shared between species in the family which cannot be used to support the classification. Keywords: leaf anatomy, fern, sakaerat environmental research station
เอกสารอ้างอิง :
อนิษฐาน ศรีนวล & วิโรจน์ เกษรบัว (2560) กายวิภาคศาสตร์แผ่นใบของเฟิร์นบริเวณน้ำตกถ้ำจงอางสถานีวิจัยสิ่งแวดล้อมสะแกราช อำเภอวังน้ำเขียว จังหวัดนครราชสีมา. วารสารวิทยาศาสตร์บูรพา, 22(3), 324-357.
