Merits and Demerits of Engler’s System of Classification of Flowering Plants.

Merits and Demerits of Engler’s System of Classification of Flowering Plants.

Merits:

i. This system of classification is a development over Eichler in many respects.

ii. Gymnosperms kept under separate sub-division.

iii. It is natural system since its was proposed subsequent to the acceptance of theory of descent.

iv. The large artificial group of Bentham and Hooke’s system Monochlamydaceae has been completely abolished.

v. Compositae and Orchidaceae treated as most advanced families of dicot and monocots respectively.

Demerits:

i. Monocot treated primitive than dicot.

ii. Amentiferae and Centrospermae placed at the beginning of Ranales.

iii. Helobae is placed in between Pandanales and Glumiflorae.

iv. Derivation of bi-sexual flower from unisexual.

v. Parietal placenta is advanced over axile.