الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 347 |  |  |
| | | from | 347 | | |
Abstract
Summary
The morphological characters of the whole plant, lamina vein architecture, lamina epidermal characters (LM & SEM), stem, petiole & leaf microcharacters as well as molecular data (RAPD) of 10 cultivated taxa of family Araceae were investigated. These taxa represented nine genera collected from the botanical garden of Faculty of Science, Ain Shams University and named Aglaonema treubii, Alocasia odora, Dieffenbachia amoena, Monstera deliciosa, Nephthytis trifylla, Philodendron bipinnatifidum, P. erubescense, Scindabsus aureus, Spathiphyllum wallisii & Syngonium podophyllum. The cumulative tables and coloured plates are designed to illusterate the similarities & dissimilarities to provide a full identification of the studied taxa.
Ten primers were selected to amplify RAPD based on polymerase chain reaction. The ten primers were successfully generated reproducible polymeric products. The primers are OPA-01, OPB-01, OPB-02, OPC-01, OPD-04, OPD-06, OPO-01, OPO-02, OPO-04 &OPO-05.
The data obtained from the morphological and molecular attributes (418) of the investigated taxa were subjected to the numerical analysis to produce the phenogram and comparing it with the current systems of taxonomic classification. The results illustrated that the taxa investigated were split into five groups (1, 2, 3, 4 & 5) in three clusters (A, B & C). Alocasia odora was segregated away from the other studied taxa in cluster C due to having many unique morphological and molecular characters. These results support the traditional placement of Alocasia odora in different tribe away from the others studied taxa in Engler (1920), Hutchinson (1973), Bogner (1978), Grayum (1990) and Bogner & Nicolson (1991) classification systems.
Philodendron erubescens, Scindapsus aureus & Spathiphyllum wallisii are grouped in cluster B. This grouping is in partial agreement with the previous classification systems viz. Engler (1920), Grayum (1990), Bogner & Nicolson (1991) and APG IV (2016).
The remaining six taxa were grouped in cluster A in three groups 1, 2 & 3. These results are in partial agreement with the previous classification systems of Engler (1920), Hutchinson (1973), Bogner (1978), Grayum (1990), Bogner & Nicolson (1991) & APG IV (2016).