Leaf Epidermal Analysis for Diagnosis of Enigmatic Strychnos Species in Nigeria
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Date
2013
Authors
Oduoye, O.T.
Ogundipe, O.T.
Olowokudejo, J.D.
Journal Title
Journal ISSN
Volume Title
Publisher
The International Journal of Engineering & Science
Abstract
Ten species of Strychnos were collected from Oban group of Forest (Cross River State, Nigeria) without their inflorescence which hindered their complete identification. Their leaves sizes, shapes, stems coloration and other morphological characters show considerable variations. Anatomical results of their leaf epidermal structures were used to delimit these sterile species. The epidermal cell shapes are polygonal and irregular. Their anticlinal wall patterns are straight, curved or undulate. The epidermal cell numbers are between 87 and 280. Epidermal cell lengths are between 7μm and 38μm. Stomata types are generally paracytic and their indices vary between 5.8 and 11.3. Their trichomes are simple unicellular with lengths between 12μm and 155μm. Both cluster analysis and scatter plots revealed that SID1 and SID2 are very similar species; 94 % similarity. Principal component analysis revealed that epidermal cell number, length, width; trichome; stomata number and indices formed the major components delimiting these species among the 36 characters observed. There are 3 clusters formed which corresponded to 3 sections in Strychnos classifications.
Description
Keywords
Anatomy , Strychnos , Enigmatic , Oban , Classification , variations
Citation
Oduoye, O. T., Ogundipe, O. T. and Olowokudejo, J. D. (2013). Leaf Epidermal Analysis for Diagnosis of Enigmatic Strychnos Species in Nigeria. The International Journal Of Engineering And Science 2(7): 109 - 119