Anatomical and Cytological Features of Spathoglottis plicata from Java Island

Abstract

Jputhoglottis plicata is a ground orchid that displays large variation in flower features. In spite of large vanation on morphologica1 characters, its anatomical and cytological characters a.cc not well known. llus paper described the leaf anatomical and chromosomal features of S. plicata. Leaf anatomy was observed from both transverse and paradecmal sections of leaves. Chromosome numbers were observed from coot tip cells. Epidermis of all S. plicata variants comprised of two cell shapes, the rectangle cells located above veins, while the polygonal one located in between veins. Stomatal type was bcachitetracyclic, which were only found on lower epidermis. Leaf transversal section comprised of one layer of upper and lower epideanis, spongy mesophyll, and vascular tissue. The number of leaf hair varied depended on the original habirat and altitute. All variants of S. plicata had same chromosome number (2n= 40).