NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Revision Terminology Part 11
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Trees
- Crown shaped β Caudex β stem unbranched with a crown of leaf at top β Date palm, coconut
- Pyramid shaped β Excurrent β acropetral succession β pine deodar, cedxs.
- Dome shaped β Deliquescent β Mango, ficus, Dalbergia
- Culms β stem β long hollow unbranched β nodes & internodes clear β Bamboo
Life Span
- Annual β in 1 year β paddy, pea, sunflower, Cauliflower.
- Biennial β in 2 year β slow growth due to temperature β Radish, turnip, Carrot in India warmer so growth is fast behave as annuals.
- Perennial
- herb β banana, ginger, doab gross.
- Shrub β Rose, Henna.
- Trees β ficus, sequoia
- Monocarpic β flower once in life β Bamboo, Agave.
- Polycarpic β Repeated flowering β Mongo, Eucalyptus, Acacia
- Roots β Anchorage & absorption, (absent in hydrilla, Certaphyllerm) .
- Root Cap β Pandanus (from root apex) .
- Root pocket β Hydrophytes β pistia, Eicchornia, Lemna (not Regenerated)
- Aquatic β root hair absent in mycorrhiza & Parasitic roots.
- Climbing plant βΎ Epiphytic life β philo Dendron, Monostera (pseudo epiphyte)
- Roots of amphibious plant (rice) release O2 & Oxidize environment.
- Stem βΎ root (hard like thorn) = Pothos = root thorns
- Leaf βΎ root (adventitious) β Bryophyllum, Begonia β leaf roots.
Tap Root
- Fusiform β Radish
- Napiform β Turnip
- Conical β Carrot
- Tuberous β 4 0 Clock plant
Branch Root β Pneumatophores β Avicenna, Rhizophora Adventitious Root
- Tuberous β sweet potato
- Fasiculated β Dahlia, Asparagus
- Palmate β Orchis.
- Nodulose β mango ginger, arrow root
- Beaded β Moniliform β Bitter gourd, Indian spinach
- Annulated β Cephaleis, Psychortia.
Adventitious Roots
- Prop root β support β Banyan.
- Stilt root β pandanus, maize, Sugar cane, pennisetum, Sorghum
- Buttress root β Ficus religiosa (peepal) , Bombax
- Climbing root β money plant (pothos) , betel, black pepper
- Clinging root β orchids, ivy.
- Haptna β podostemon
- Contractile root β Circus, onion, canne
- Nest roots β Dischidia refflesiana (root climber) β leaf βΎ pitcher to collect hummers
- Haustoria β Sucking root β Dodder (cuscuta)
- (10) Floating roots β Jussiea repens.
- Epiphytic roots β velamen β orchids, vanda.
- Assimilatory roots β Tinospora, Trapa.
- Reproductive roots β sweet potato (trichosanthes dioica)
- Non epiphytic (Geophytic) plant β Sobrelia , phyajas β velamen roots.
- Myremecophily β Association of plant & ants β myremecophily achivata (rubiaceae)
- Twiners (dir β Specific & genetically determined) (1) Dextrose β Clockwise β Discorea Hop
- Sinistrose β anticlockwise β Bean, Clitoria, Convolvulus.
- Shrubs Climbers β Climb by hooks β Stragglers β Bougainvillea, Artabtrys.
- Large woody climber β Climb to treetop β lianas β Hystage, Gnetum, Ventilago, bauhinia vagii.
- Rafflesia β Seeds dispersed elephant pollination Occurs by mites.