SHORT QUESTIONS OF GYMNOSPERMS

SHORT QUESTIONS OF  GYMNOSPERMS  1.  Give occurrence of Gymnosperms. Ans: Gymnosperms are naked seeded plants. Gymnosperms are a group of ancient plants. They become dominant in the Jurassic period. Most of the gymnosperms are evergreen trees. Some shrubby plants are also found in this group. They have worldwide distribution. They are most abundant in the temperate region. The fossils of gymnosperms are found near coal and oil deposits. 2.  How do fertilization and seed formation occur in gym nos perms? Ans: Pollen...

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Plant Families"

NOTES.., "Plant Families" 1- CAESAL PINIOIDEAE/CASIA FAMILY CLASSIFICATION DIVISION : ANGIOSPERMS CLASS : DICOTYLEDON SUBCLASS : POLYPETALAE SERIES : CALCIFLORAE ORDER : ROSALES FAMILY : LEGUMINOSAE SUB-FAMILY : CAESALPINIOIDEAE OR CAESALPINIACEAE. GENERAL CHARACTERS Majority of these plants are trees or shrubs, about 135 genera and 5800 species are known . VEGETATIVE CHARACTERS ROOT Usually, Taproot with nodules and primary, secondary and tertiary divisions. STEM Usually, Climbing stem or erect herbaceous or woody, Some plants show...

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