Monocots ndi dicots: kodi pali kusiyana?

Gulu la angiosperms zomera akhoza kugawidwa mu monocots ndi dicots, zosiyana, makamaka kapangidwe ka Ndisanaumbidwe lapansi. Komabe, zomera ndi makalasi ndi zina zambiri zosiyana mu kapangidwe ka vegetative ndi ziwalo zobereka.

Maphunziro Dicotyledons, kapena Magnoliopsidy: chomera kapangidwe ndi kufotokoza mwachidule awo

Pakali pano, kalasi akuti ndi lalikulu kwambiri, choncho zikuphatikizapo pafupifupi 200,000 mitundu. nthumwi zake ndi zinthu zingapo zochititsa kwenikweni chosiyana.

Dicotyledons awa akuimira zosiyanasiyana - mitengo ndi zitsamba, ndi zitsamba. Mitundu zake ndi wosanjikiza mwachilungamo wandiweyani wa cambium mu tsinde la - nsalu wapadera kuti zipangitsa kukula m'lifupi. chomera masamba zimakhala zophweka ndi zovuta, koma pafupifupi mitundu, iwo Cherenkov - sessile tsamba masamba sizionekaoneka kwa kalasi. Records venation nthawi zambiri ukonde. The mizu ndi advantageously ndodo - ali ndi chachikulu, muzu waukulu, umene kukula kwa mbali, miyeso yaing'ono.

Mbali ina - ndi kapangidwe ka ziwalo zobereka. Mitundu kwambiri ndi maluwa lalikulu ndi mitundu yowala. Ali ndi perianth awiri (sepals ndi pamakhala) maluwa makamaka five- kapena zinayi ziwalo. zomera Dicotyledonous Kawirikawiri mungu ndi tizilombo.

Ndipo, ndithudi, ndi khalidwe kwambiri dongosolo la mwana wosabadwayo, amene ali cotyledons mbali ziwiri. Mwa njira, ndi Mbali imeneyi ndi kugwirizana dzina kalasi.

Dicotyledons: n'lofala kwambiri

kalasi Izi zikuphatikizapo chiwerengero chachikulu cha mitundu imene ali m'gulu la yobereka chikwi ndi mazana atatu mabanja. Odziwika kwambiri awa zotsatirazi.

Cruciferous - nthumwi zake amafalitsidwa makamaka kumpoto kwa dziko lapansi dzikoli. Ambiri mwa mitundu yake - mawonekedwe busa kapena zitsamba yaing'ono. Aliyense ali bwino oimira zoterozo crucifers monga kabichi, radish, horseradish, turnips, mpiru ndi radish.

Banja Pinki Chili mitengo, zitsamba ndi zomera herbaceous, amene makamaka anagawira m'madera osatentha ndi subtropical. Mwachitsanzo, kuthengo wotchuka ananyamuka ndi kakang'ono maluwa tiri mu nthawi kwa gulu ili. Kumaphatikizaponso ambiri a mitengo ya zipatso ndi zitsamba, kuphatikizapo apulo, peyala, chitumbuwa, rowan, rasipiberi, chitumbuwa, zakuda.

The legume banja - mawonekedwe ake ndi zitsamba zake amafalitsidwa makamaka m'mayiko otentha ndi busa amakonda kwambiri kotentha ndipo ngakhale ozizira nyengo. mamembala onse a gulu yodziwika ndi yeniyeni whisk "papilionaceous" mtundu. gulu Izi zikuphatikizapo zotsatirazi kudziwika zomera: nandolo, nyemba, nyemba, nyemba, soya. Mwa njira, mitundu ina ndi kukhala wochitachita mu mkombero asafe.

Maphunziro Monocots: kufotokoza mwachidule

gulu ili makamaka herbaceous zomera - mitengo ndi zitsamba mu izo n'zochepa kwambiri. Awo zimayambira zambiri zili cambium choncho sangathe kukula mu makulidwe. Timapepala ta - losavuta, ndi m'mbali yofunika. Ali tsinde ndi Ufumuyo tsinde m'mphepete mwa lamina, ndilo chifukwa iwo amatchedwa masamba sessile. Venation nthawi zambiri, kufanana kapena arcuate.

Mbali ina - ndi fibrous mizu, yomwe alibe mizu chachikulu. Ndisanaumbidwe ali Muzu chimodzi chokha, ndipo umboni ndi dzina kalasi.

Ambiri monocots ndi mungu ndi mphepo. Choncho, maluwa - yaing'ono, mdima, umodzi perianth, makamaka atatu-ziwalo.

oimira Chitsanzo cha gulu - mbewu: tirigu, Mapila, chimanga, mpunga ndi zina.