Tunicated bulb : Concentric layers of fleshy scales surrounding the reduced stem having terminal bud. The outer few scale form a membrane called tunic .In case of simple tunicated the scale leaves ring is surrounded by single tunic Ex Onion And in compound tunicated bulb the fleshy scales represent bulblets and each bulblet surrounded by its own tunic Ex. Garlic
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SUCKER: It arises from the underground part of stem for some distance it grow below the surface of soil then emerges out as a aerial shoot. It grow from axillary bud it has nodes internodes, scale leaves & adventitious roots Ex. Mint
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MCQ ON EMERGENCY PROVISION FROM INDIAN CONSTITUTION INDIAN POLITY FOR UPSC SSC PCS ASSISTANT COMMANDANT, ASSISTANT INTELLIGENT OFFICER EXAM IN INDIA 2024-2025
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MCQ ON UPSC FROM INDIAN CONSTITUTION INDIAN POLITY FOR UPSC PCS SSC ASSISTANT COMMANDANT, ASSISTANT INTELLIGENT OFFICER EXAM 2024-2025 INDIA
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NEUTER: A sterile flower without androecium & gynoecium .Ex. Ray floret of sunflower
PHYLLOCLADES: In xerophytic plants the leaf modified into spines and then the stem become thick fleshy cylindrical and contain chlorophyll to perform photosynthesis this modified stem is called phylloclade it has unlimited growth.
Ex.Opuntia — In this the stem is modified into jointed branched flat fleshy and succulent leaf like structure . Leaves modified into spines and flower born on nodes.
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MONOADELPHOUS: All the stamens of a flower are united .filament fused anther are free Ex Hibiscus
DIADELPHOUS: Stamens are in two bundles by fusion of filaments anther are free . Ex Pea
POLYADELPHOUS: Filament fused form more than two groups.Ex. Citrus
SYNGENESIOUS: Anther unite to form a cylinder around style filament are free.
SYNANDROUS: Both anther and filament fuse throughout their whole length . Ex Cucurbita
POLYANDROUS: Stamens are indefinite and free. Ex Ranunculus
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Epiphytic roots : These roots develop in some orchids which grow as epiphytes upon the trunks of branches of trees .They hang freely in the air and absorb moisture with the help of special sponge like tissue called velamen. Ex. Vanda
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