Tsis yog qhov yooj yim - txhawm rau txheeb xyuas tus fern kom raug, cov kev paub tshwj xeeb feem ntau xav tau. Muaj ntau dua 12,000 hom tsiaj thoob ntiaj teb. Nws tsis yooj yim kom taug qab cov khoom thiab zam kev tsis meej pem. Nov yog hom fern tseem ceeb tshaj plaws hauv lub tebchaws no nrog lawv cov yam ntxwv tsis muaj tseeb!
Kuv tuaj yeem txheeb xyuas tus fern li cas?
txhawm rau txheeb xyuas cov fern, koj yuav tsum saib nws cov yam ntxwv tseem ceeb: cov qauv ntawm cov fronds, feathering, spore shape thiab spore arrangement. Fern hom tuaj yeem faib ua unpinnate, ib zaug lossis ob lub pinnate, thiab tripinnate lossis multipinnate.
Tus yam ntxwv tseem ceeb ntawm ferns
Vim cov ferns tsis tsim paj, txiv hmab txiv ntoo lossis cov noob, tsis muaj ntau yam uas tuaj yeem muab piv rau cov ferns kom paub qhov txawv ntawm ib leeg. Cov yam ntxwv tseem ceeb ntawm kev txheeb xyuas yog:
- Outline of fronds
- feather
- Spore shape
- Spore arrangement
Ntsuab fern
Ib hom fern txawv txawv ntawm lwm tus. Qhov no yog mos lwj tus nplaig lossis mos lwj tus nplaig fern. Nws fronds yog tus nplaig-puab thiab featherless. Nws tuaj yeem loj hlob hauv vaj thiab hauv lub lauj kaub hauv chav tsev.
Simple pinnate fern species
Cov hom fern hauv qab no muaj cov pinnate fronds yooj yim:
- Rib Fern: Spores are on me fronds
- Lance shield fern: pos pos, shield-shaped spore capsules
- Brown-stemmed striped fern: liab mus rau dub-xim av petiole, kab-puab spore capsules
- Green-stemmed striped fern: ntsuab nplooj stalk, kab-shaped spore capsules
- Spotted fern: ntsuab nplooj stalk, dot-shaped spore capsules
ob tug pinnate ferns
Tseem muaj lwm hom fern uas muaj ob lub pinnate fronds. Cov no suav nrog cov qauv hauv qab no:
- Common worm fern: broad nplooj, raum-zoo li tus spores capsules
- Cov kab mob worm fern: nqaim nplooj, raum-zoo li tus kab mob capsules
- roob fern: nplooj hauv paus nqaim, spore capsules ntawm ntug nplooj
- Swamp fern: nplooj me thiab mos, spore capsules ntawm ntug nplooj
- Lapped shield fern: pos pos, tawv nplooj, shield-shaped spore capsules
- Ostrich fern: ostrich feather-like leaf, spore capsules on me fronds
Triple pinnate ferns
Kawg tab sis tsis kawg, muaj cov kab mob fern nrog triple lossis ntau pinnate fronds. Ib tus neeg sawv cev ntawm qhov no yog tus ntxhais nkauj ntsuab (cov plaub hau) fern, uas nws cov tshuaj ntsiav yog kab-puab. Tsis tas li ntawd suav nrog yog cov alpine fern nrog nws cov kab nrib pleb, lub zais zis me me uas loj hlob ntawm pob zeb, pos fern nrog nws cov lus qhia pos thiab lub raum zoo li cov tshuaj ntsiav, cov nplooj loj-leaved bracken thiab daim duab peb sab-leaved roob zais zis fern.
Tips & Tricks
Muaj cov vev xaib hauv Is Taws Nem uas muab software los txheeb xyuas cov ferns. Cov phau ntawv txheeb xyuas rau ferns (€ 26.00 ntawm Amazon) kuj muaj nyob hauv khw.
