Monocots kunye dicots: yintoni umahluko?

Iqela angiosperms flora lungohlulwa lube monocots kunye dicots, ezahlukeneyo ikakhulu isakhiwo mbungu. Nangona kunjalo, ezi zityalo kufuneka iiklasi kunye nezinye umahluko isakhiwo kwezityalo kunye amalungu okuzala.

Class Dicotyledons, okanye Magnoliopsidy: isakhiwo izityalo kunye nenkcazo emfutshane zabo

Ukuza kuthi ga ngoku, iklasi uthathwa ukuba ube mkhulu kakhulu, ngoko ke kuquka malunga 200,000 iintlobo. abameli balo babe eziliqela iimpawu ezithile kakhulu eyahlukileyo.

Dicotyledons zimelwe iifom ezahlukeneyo - ukuba imithi namatyholo, kunye imifuno. Kwiintlobo enemithi, abe umaleko olude zamafu cambium kwi esiqwini - lilaphu ezizodwa eqinisekisa ukuba ukukhula kwayo ububanzi. amagqabi isityalo kuba ezilula kunye nezintsonkothileyo, kodwa phantse zonke iintlobo, bona Cherenkov - iincakuba igqabi sessile aziqhelekanga kule klasi. Iirekhodi venation kwiimeko ezininzi umnatha. Inkqubo njengengcambu advantageously intonga - unalo koyintloko, ingcambu engundoqo, leyo ezikhula ecaleni, zobukhulu ezincinane.

Enye feature - oko isakhiwo amalungu okuzala. Kwiintlobo ezininzi kuba iintyatyambo ezinkulu kunye imibala eqaqambileyo. Zinelungelo perianth kabini (sepals kunye ezinamagqabi) iintyatyambo becala emihlanu okanye abane-membered. Izityalo Dicotyledonous bavame ezimvumvuzelwa zizinambuzane.

Kwaye, kakade, loo nto isakhiwo luphawu kakhulu ndiseyimbumba, leyo cotyledons ezimbini icala. Hi ndlela leyi, lo msebenzi igama leklasi enxulumene.

Dicotyledons: ezivame

Le iklasi iquka inani elikhulu yezityalo ziqukiwe ukuziswa ezininzi iintsapho amawaka, anamakhulu amathathu. Esaziwa kakhulu ezi zilandelayo.

Cruciferous - abameli balo athunyelwa ubukhulu becala kumntla ikhweyitha le planethi. Uninzi iintlobo zayo - imilo enengca okanye amatyholo ezincinane. Wonke umntu uqhelene nabameli ezinjalo crucifers ezifana ikhaphetshu, isithombo, horseradish, theniphu, lwemostade kunye isithombo.

Family Pink idibanisa imithi, amatyholo kunye nezityalo herbaceous, ezo ikakhulu asasazwa kwimozulu epholileyo sabutropikhi. Umzekelo, zasendle odumileyo wavuka kunye roses ezincinane nje ngexesha leli qela. Kwakhona iquka uninzi imithi yeziqhamo kunye namatyholo, kubandakanywa apile, pere, icherry, rowan, raspberry, icherry, blackberry.

Usapho imidumba - ukwakheka kwalo kunye namatyholo enemithi athunyelwa ikakhulu kumazwe afumileyo sabutropikhi kunye anengca bakhetha kwimozulu epholileyo ngakumbi kwaye cool. Onke amalungu eqela luphawulwa ezithile phehla udidi "papilionaceous". Eli qela libandakanya izityalo eyaziwayo zilandelayo: ertyisi, iimbotyi, ilusini, iimbotyi, soy. Ngendlela, ezinye iintlobo othatha inxaxheba kumjikelo nitrogen.

Iklasi Monocots: inkcazelo emfutshane

Eli qela ikakhulu izityalo herbaceous - imithi namatyholo kulo zinqabile kakhulu. Zabo neziqu adla cambium kwaye ke ayikwazi lokukhula babulingana nesandla. Amaphetshana - alula, elintlangothi ezifunekayo. Banalo isiqu kwaye ziqhotyoshelwe apha esikhondweni elunxwemeni lamina, nto ke leyo ebangele ukuba zibizwa ngokuba amagqabi sessile. Venation kwiimeko ezininzi, enxuseneyo okanye arcuate.

Enye inkalo - i inkqubo iingcambu ezinezikhondo, nto leyo ayinayo ingcambu engundoqo. Le umbungu Cotyledon enye kuphela, yaye njengoko kungqinwa igama leklasi.

Uninzi monocots sukube ngumoya. Ngoko ke, iintyatyambo zabo - encinane, enorhatyazo ukuba angaboni, abangatshatanga perianth, ubukhulu becala emithathu membered.

abameli imifuziselo eli qela - iinkozo: ingqolowa, ihabile, umbona, irayisi kunye nezinye.