Monocots uye dicots: chii musiyano?

Boka angiosperms kasvisto zvinogona kukamurwa monocots uye dicots, zvakasiyana kazhinji sechivako embryo. Zvisinei, miti iyi vane zvidzidzo uye nedzimwe kusiyana maumbirwo vegetative uye rokubereka zvomukati.

Kirasi Dicotyledons, kana Magnoliopsidy: chirimwa marongerwo uye tsanangudzo pfupi zvavo

Pari, kirasi anoonekwa kuti dzakakura chaizvo, saka zvinosanganisira anenge 200,000 marudzi. wevamiriri vayo vane uwandu zvakananga nevamwe zvinhu.

Dicotyledons vanomirirwa zvakasiyana siyana - kuti pamiti, uye miriwo. In Woody howa vane kumbonyanya gobvu paiva cambium ari hunde - a jira rinokosha kuti kunovimbisa kukura kwayo pahupamhi. chirimwa Mashizha ingava nyore uye kunzwisisa, asi zvinenge zvose marudzi, ivo Cherenkov - sessile Shizha mashizha hazvisi zvinowanzoitika kuti kirasi iyi. Records venation kakawanda mambure. The Midzi advantageously tsvimbo - ane huru, chikuru mudzi, izvo kukura kubva kurutivi, kuti miganhu duku.

Chimwe chinhu - ndiwo nemamiriro rokubereka zvomukati. Kakawanda zvinhu zvipenyu vane maruva guru namavara inopenya. Vane miviri perianth (sepals uye petals) maruva kunyanya five- kana mana membered. Dicotyledonous zvirimwa kunowanzoitwa mukume ne nezvipembenene.

Uye, chokwadi, maitire chaizvo nemamiriro embryo, iro rine mbiri divi cotyledons. Zviya, pamwe chikamu ichi uye zita chokuita kirasi.

Dicotyledons: rakajairika mhando

kirasi ichi zvinosanganisira zhinji zvipenyu kuti vanobatanidzwa hurukuro dzakawanda mhuri namazana matatu. The zvakanakisisa inozivikanwa izvi zvinotevera.

Cruciferous - Vamiririri ayo anoparadzirwa kunyanya kuchamhembe hemisphere panyika. Vakawanda kwemarudzi ayo - a manyoro chimiro kana nemiti diki. Munhu wose ajaira vamiririri dzakadai crucifers akadai makabheji, radish, horseradish, turnips, netsanga uye radish.

Family Pink rinobatanidza miti, nemiti uye herbaceous zvinomera, izvo kazhinji akaparadzirwa unozvidzora uye subtropical mumamirire ekunze. Somuenzaniso, yakakurumbira dzomusango akasimuka vakasiyana Roses inongova munguva yokuti boka iri. Kunosanganisirawo dzakawanda miti yemichero uye nemiti, kusanganisira Apple, peya, Cherry, Rowan, razibheri, Cherry, Blackberry.

The mhuri legume - chimiro chayo uye Woody nemiti anoparadzirwa kunyanya munyika dzinopisa uye subtropical nyika uye manyoro vanosarudza zvikuru unozvidzora uye kunyange muchitonhorera okunze. Nhengo dzose dzeboka vanoonekwa ne chaicho whisk "papilionaceous" mhando. boka iri zvinosanganisira zvinotevera anozivikanwa zvinomera: pizi, bhinzi, chemombe, bhinzi, Sou. Panzira, dzimwe mhando zviri kuitika mune senitrogen yatinofema.

Kirasi Monocots: tsanangudzo pfupi

boka Izvi kunyanya herbaceous zvinomera - pamiti mariri apo neapo. Dzavo madzinde Kazhinji zvine cambium uye saka haana vanokwanisa kukura ukobvu. Mapepa - nyore, pamwe chinokosha kumicheto. Vane hunde uye dzakabatana hunde kumucheto lamina, ndokusaka dzinonzi sessile mashizha. Venation kazhinji, kufanana kana arcuate.

Chimwe chinhu - a fibrous midzi, iyo haina huru mudzi. Embryo ane chete cotyledon, uye sezvinoratidzwa neboka zita.

Vakawanda monocots iri mukume nemhepo. Naizvozvo, maruva avo - diki, madzedzerere, kuroorwa perianth, kunyanya-membered matatu.

Typical dzinomiririra boka ichi - zviyo: gorosi, oats, chibage, mupunga nezvimwe.