Advertisements
Advertisements
प्रश्न
Describe general characters, classification and example of old division Spermatophyta.
उत्तर
General characteristics of old division spermatophyta:
(i) It includes higher plants that bear flowers and seeds.
(ii) The plants in this division have a sporophytic plant body with differentiated root, stem and leaves. The gametophytes are nutrition dependent on the sporophytes.
(iii) They have a well developed vascular system.
(iv) Plants have conspicuous, multicellular sex organs. Fertilisation does not require an external water source.
(v) Division spermatophyta was divided into following two subdivisions, depending upon whether the ovule was covered or naked and the presence of fruits.
(a) Sub-division Gymnospermae
(b) Sub-division Angiospermae
Examples: Cycas, Pisum etc
