Competitive Exams: Revision Terminology Part 28

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  • Bauxbaumia grows on rotten wood. Cryptothalues mirlibis – luck chl & grow on conifers.
  • Smallest Buy ophyte – Zoopsis & Legeunea.
  • Saprophytic – Duxbaumia aphylla.
  • Damp habitat, thalloid body (not difference into root stem & haves) stem & Leave belong to gametophyte generation.
  • Foliose ⇾ difference in stem & leaves
  • Apices of thalli be come thick walled & persistent.
  • Gemmal – multicellular green body originating from the single cell. (in all except sphangiolae)
  • In favourable conditions the tubers germinates.
  • Bulbils – devoid of chl & full of stamch
  • apospory – anthoceros & mosses.
  • Anthedria endogenous – embedded in thallus.
  • Indian Biology – KS Kashyap.
  • Bryophyte – Sex organ are multicellular & sterile jacket
  • Antheridia is protected by perichaetial leaves which surround them & by multicellular hair like structure - paraphyseo.
  • Androcytes ⇾ motile male gamete ⇾ anthrezoids ⇾ nucleus + 2cilia (anterior)
  • Archegoria – Stalked, multicellular flask shape female sex organ – upper neck & lower venter plant surface lack cuticle – no check of water loss.
  • Retention of zygote within female sex organ to nourish developing embryo, appreciably increment chances of survival & growth of zygote
  • Riccia – foot & seta absent in sphagnum – seta is indistinguishable.
  • Foot – help absorb food for developing sporophyte.
  • Seta – elevates capsule high up for easy dispersal of Spores, conducts food matrial
  • Capsule – haploid non motive spore produce
  • Morchantia polymorpha in pulemonary TB & liver disease.
  • Sphymun – dressing, treat haemmorrage, eye diseases, skin.
  • Peristome teeth pogonetum – not hygrosopic.
  • Inverworts (lower bryophytes) – hepaticopside – rhizoid unicellular, gametophyte flat to leagy, leaves not spirally arranged, capsule split for spore dispersal, elaters help in dispersal absent riccia marchartic.
  • Mosses – highe bryophytes – Bryopsied – rhizoids multicellular, gametophyte is leafy, leaf are spirally arranged, elaters absent, funaria, sphagnum, pogamutum, polythrichum (hair cap moss) .
  • Riccia – Dichotomously branched, rosetle shaped antheridia & archegonia Lie sunken in longifudinal groove on upper fide of thallus.
  • Archerzoid – biflagellate, pear shaped.
  • Archegonia – flask Shaped, Feaneck cancel cells, uninucleate egg as mature muclige dissolves.
  • Sporophyte – no stalk, reduced & emnedded in thallus.
  • Spore mother cell ⇾ Haploid spores, venter forms 2 Layered wall calyptra around the sporophyte.
  • Marchantia – Rhizoid unicellular, unbranched smooth & turburcelated
  • Storage – Colourless poranchymatous cell.
  • Antheridia – on terminal peltate disc of antheriodiophore (curved, Biflagellate) .
  • Archegonia – dorsal side sporophyte foot, seta & capsule hygroscopic covering called calypira, perigynium & perichaetium.
  • Funaria – cord mose epidermis – single layered, stomata absent.
  • Cortex parenchymatous medulla made of conducting tissine – hadrome.
  • Buds on secondary protonema grow into gametophores.
  • Antheridia – perigonial leaves.
  • Antheridia – spirally coiled 2 equal flagella at anterior end.
  • Archegonia – perichaetial leaves.
  • Archegonia – 6 – 9 neck canal cells (Haploid)
  • Protoandry except midrib leaves of function are one celled.
  • Capsule
  • Operculum – 2 – 3 layered lid.
  • Annulus – cells at base of operculum.
  • Peristome – 32 teeth (16 in 2 rings) – exostome and endostome
  • Columella – solid sterile column of water & food.
  • Spore sae – numerous spores having chloroplasts.
  • Epiphysis – sterile solid based portion of capsule having chloroplast in many cells & stomata in epidermis sporophyte is partially dependent on the gametophyte.
  • Protonema – juvenile stage of moss.
  • Embryo is holoblastic (entire zygote develops into embryo) .
  • Elaters of marchantia = xerochary.

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