Characteristics of Leaves Anatomy of Some Syzigium (Myrtaceae)

摘要

In identifying a plant species, anatomical characteristics of vegetative organs such as leaves are needed to complete taxonomic data and increasing group understanding within a taxa. The aimed of this research to determine the cross-sectional characteristics of leaves and stomata characteristics of three plants of Syzygium. The plants were Syzygium aromaticum (L.) Merr. & Perry, Syzygium malaccense (L.) Merr. & Perry, and Syzygium polyanthum (Wight.) Walp. The results of this study indicate that of the three plants have the secretory cavities that produce oil glands, was found anomocytic stomata type on S.aromaticum (L.) Merr. & Perry and S. malaccense (L.) Merr. & Perri, while S. polyanthum (Wight.) Walp. has a parasitic stomata type. This shows that the stomata type does not indicate taxonomic value for this genera. Spread of stomata is only found at the abaxial surface of the leaf (hypostomatic). The length of stomata in the S. aromaticum (L.) Merr. & Perry was 60.20 ± 6.99 μm2, in S. malaccense (L.) Merr. & Perry was 108.29 ± 21.17 μm2, and S. polyanthum (Wight.) Walp. was 53.17 ± 9.32 μm2.