Gymnosperms

12TH PHYSICS

Gymnosperm
Together with flowering plants tarzan gymnosperms on the group spermatophyta seed producing plants
The gymnosperms dear naked ovals on flat scale leaves called overleaf various scales which are not enclosed in carpals ovary the various skills are arranged in cons
Characteristics of gymnosperms
The adult plant sporophyte is a Woody perennial tree or Shrub mostly Evergreen the stem is usually branch but really unbranched as in cycas leverage maybe simple as in pinus aur compound in cycas leaves maybe dimorphic or of one kind only foliage leaves are large green simple aur pinnately compound needle-like and grow on suit as in finance or directly born on the main trunk in cycas scale leaves are brown and simple vascular bundles in stem are arranged in a ring and source secondary growth gymnosperms bear cones which are usually unisexual either male or female isl pollen grains are haploid produce ine microsporangia of the male cones in pinus is Pollen Grain has two large sex called Wings to help in the dispersal by wind pollen grains produced to male gametes poles are not in clause in ovary age in angiosperms but are born next on leafy megasporophylls of female cone show the term gymnosperms or naked seeds for this group of wolves are produced side-by-side inside which female gamete or egg is produced the male gamete fuses with female gamete in the oval the fertilized ovum then develop into a seed wind in the case of pinus some common gymnosperms are Pine Pine S Redwood secular Juniper juniperus address and cycas male gymnosperms and Tamba presence turpentine and several other products like the dry fruit Chilkur sabudana old stamps of cycas

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