Izindaba UmphakathiUhlobo

Amahlamvu Indlela izitshalo

Izimo amaqabunga, izimbali kanye izimpande zezitshalo zahlukahlukene kakhulu. Namuhla sikhuluma omunye izitho oyinhloko wabo bonke izitshalo eziluhlaza. Kuyinto iqabunga. Itholakala kwi isiqu, thatha isikhundla lateral kuso. Leaf ukuma siyahluka kakhulu, kanye nosayizi yabo. Ngokwesibonelo, duckweed, izinto ezimila emanzini, sebezofunda ezintathu amamilimitha angu ububanzi. Kungaba afinyelela imitha ishidi elilodwa Victoria Amazon. Ezinye izintende elishisayo elinesimo ubude 20-22 m.

izici Jikelele amahlamvu isitshalo

isihlahla ezingenamaqabunga limelela umshanelo lobehlukene. Ngokuvamile kunzima ukunquma ukubukeka kwayo ebusika, lapho umqhele nqunu. Izihlahla namahlamvu, wayewile ebusika, ayibi, kodwa aqhubeke ephila. Kwaze kwaba yilapho sebeshiye ukuqhakaza baqala ukuphila ngokugcwele futhi ukuthola ukuma alandisa. Uhlu - lokhu akulona umzimba Axial, kodwa kuhlobene eduze ne isiqu, okuyinto ukubaleka axis.

Ngo psilophytes, izitshalo umhlaba omdala, kwakungekho ukucekwa kwabantu umzimba, ajwayelekile kithi. Ukwakheka kwazo ngokwama-akuyona labelwe impande, leaf futhi stem. Kwathi ngemva kwesikhashana. Modern isitshalo leaf ukuma Iinhlangano kukhona plastic kakhulu. Kusukela stem impande lezi zindikimba izici ezahlukene isici. leaf amahlumela nemizimba yayo lateral. Basuke ezakhiwe surfactants (exogenously) njengoba uhlevane elise ukukhula Isigaxa. Nokho, eshiya ngokwabo we ezikhulayo yokuntuleka. Zikhula base. Bona akuyona ngqo nezinye ishidi noma Axial izitho. Kukhula ezinye obuphelele esilinganiselwe.

Leaf isakhiwo: imithetho kanye okuhlukile

Lamina kuyinto ingxenye enwetshiwe ishidi. Petiole - steblevidnaya ingxenye yayo encane. Kuyinto ngaye ne stem uxhuma iqabunga blade. Base - ingxenye ehambisana ahlabayo stem. Ezansi kukhona stipules.

Njengomthetho, isakhiwo amaqabunga Cerebro-besisu (dorziventralnoe). Le ndiza wesimethri ingenye, futhi lubahlukanise halves ezimbili ziyalingana komunye nomunye. Nokho, leyo mithetho babe okuhlukile eziningi. Ngokwesibonelo, ngamaqabunga amahlamvu (Izinhlobo) ithiphu ezikhulayo. Njengoba for izinaliti kaphayini, it kwandisa ngobukhulu eminyakeni embalwa. Ngo zikaphayini izinaliti sikhule gusset ukukhula ngasesinqeni.

Nokho, okukhishiwe okurarako ukuba lo mthetho kubhekwe eshiya mirabilis zama-welwitschia. It gymnosperms, okuyinto itholakala eNingizimu Afrika (oGwadule LwaseKalahari). Tumboobrazny isiqu zama-welwitschia mirabilis (40 cm ubude 1 m ububanzi) amafomu amashidi 2 kuphela. Ubude wabo ngamamitha amathathu. Ifomu eshiya remnevidnaya, zingabantu obunesikhumba. Ngayinye yalezi zingxenye ezimbili sife kanye imikhawulo kanye ngasesinqeni sikhulela njalo. Ngenxa yalokho, ukuphila kwabo okulindeleke ukuba kungaba idlule iminyaka engu-100.

Kanjani ukuze uhlukanise amahlamvu?

Amahlamvu elingaphandle ezihlukahlukene omkhulu kangangokuthi esigabeni uhlelo olulodwa esekelwe eyodwa noma ngaphezulu izimfanelo, ayikwazi ukwakhiwa. Kunezinhlobo eziningana, ukuze thina manje ukuchaza.

Ukwahlukanisa the petiole

Kunezindlela ezintathu lapho stem exhunywe amahlamvu. Plant ame petioles ngaphandle kwabo. Esimweni sokuqala, amaqabunga isitshalo okuthiwa petiolate, kanti eyesibili - sessile. Kumila ezinye izitshalo ezikhulayo, Omboza stem inhlangano. Kulokhu ishidi libizwa lwesitho sangasese sowesifazane. Stem uthanda izimali zakhe kuko. Uma sedentary isitshalo leaf amaconsi Isiqu phansi, ibizwa ngokuthi decurrent. Isibonelo esingokoqobo - namakhakhasi. Uma leaf plant ihlanganisa stem, ibizwa ngokuthi amplexicaul.

Ethers namaqabunga

Qhubekisa ngokuthwebula ngezigaba esilandelayo. Leaf amadiski nakho kungase zahlukahlukene kakhulu ngefomu, ngobukhulu, isimo kanye neminye imingcele. Kungase kube into eyodwa noma ngaphezulu. Uma kukhona irekhodi elilodwa kuphela, amahlamvu ngokuthi elula. amahlamvu Ifomu yezihlahla Kulokhu kungaba ezimise okweqanda, eziyindilinga lanceolate, oblong, okwenyanga Iqanda-, komugqa, obratnoyaytsevoy. Lapho amapuleti eziningana phezu petiole olulodwa, uwuhlobo eziyinkimbinkimbi. Indawo lamina ingase futhi ibe khona ehlukile. Ifomu amahlamvu (eziyinkimbinkimbi) kungenzeka kanje: preryvistoperistoslozhnoy, trizhdyperistoslozhnoy, dvazhdyperistoslozhnoy, imparipinnately, parnoperistoslozhnoy, palchatoslozhnoy, Ternate.

Nokho, amahlamvu elula akuzona ngakho elula. Cabangela lokhu kuboniswa izitshalo eziningi monstera. uhlu wakhe siqukethe lamina eyodwa kuphela kubhekwa ngakho elula. Nokho, ezakheke okuyinqaba kakhulu. Amaqabunga lolu hlobo is elibizwa dissected. Zikhona nezinye izinhlobo. Uma ipuleti ingeqi Imi kwezine ububanzi, ukuma amahlamvu Lobed kwezihlahla. Uma unqunywa ngumuntu wesithathu, ibizwa ngokuthi uqhekeko. Kwenzeka futhi ukuthi ishidi cut lifika kule mithambo main. Kulokhu, ukuma isitshalo amaqabunga dissected.

Isibalo sebeziqhumbuza, ukuma izindwani leaf futhi imiphetho

Qhubekisa ngokuthwebula ngezigaba esilandelayo. Izitshalo ingahluka futhi inani sebeziqhumbuza ishidi. Uma yizinqamu ezintathu, ibizwa ngokuthi troychato- uma 5 - palchato- uma inombolo enkulu izingxenye - peristo- (dissected, ukuhlukana, gwedla).

Leaf blades futhi kuhlukaniswe fomu. Ukwabela sebuningini amafomu :. Ovoid, eyindilinga, lanceolate, lanceolate, komugqa, amise okwenhliziyo oblong, umcibisholo emise, njll ngu base efanayo ingase futhi uhlukanise futhi emaphethelweni. Uhlobo oluvame kakhulu i seshidi onqenqemeni - ebalulekile (amahlamvu bushelelezi-nhlangothi zombili). Nokho, zikhona nezinye izinhlobo eziningana zazo. toothed esabiwe, crenate, kolyuchezubchatye (izihlahla ezinameva), serrate ukuma uhambahamba leaf onqenqemeni.

Geterofiliya

Ujwayelene yini nendaba lo mqondo? Uma kungenjalo, kufanele kuphawulwe ukuthi amahlamvu ngokudla ungaba ezahlukene ijamo, umbala kanye nobungako. Lesi simo esiyingqayizivele sibangelwa seyaziwa ngokuthi geterofiliya. Kuyinto ejwayelekile, isibonelo, ngenxa ikhanda lomcibisholo, Buttercup, kanye nezinye izinhlobo eziningi.

isitshalo vein

Uma sicabanga izitshalo leaf kuyabonakala ukuthi kukhona emithanjeni. Lokhu izitsha conductive. indawo yabo leshidi nazo azifani. Venation - iyindlela leaf ilungiselelo. Kunezinhlobo eziningana zalo Net (pinnate futhi umunwe) dichotoma, arc ngokulinganisa. Ukuze monocots isici arc noma veining okufanayo, futhi bipartite - net.

Siphakamisa cabanga bese uqhathanisa kwesihlahla se-okhi ne-maple amahlamvu, ukucacisa isimo sabo.

amahlamvu kwesihlahla se-okhi

Oak - izitshalo ejwayelekile ka isimo sezulu sifudumele. Kungatholakala kubhalwe zasezindaweni yeNyakatho Nenkabazwe. ezinkangala Tropical - umkhawulo oseningizimu ekukhuleni kwayo. Amahlamvu aso kukhona obunesikhumba. Baqhuba isihlahla zinhlobo siluhlaza iminyaka eminingi, futhi ezinye izinhlobo iwe unyaka ngamunye, noma ahlale phezu amagatsha, futhi bome kancane zidilika. Ifomu i-oak leaf kuyinto gwedla. Nokho, ngezinye izikhathi kunezindlela lonke. Le ndlela neqabunga kwesihlahla se-okhi ebonwe ezinye izinhlobo zawo siluhlaza. Emhlophe, isibonelo, amahlamvu kukhona mikhulu (kufika ku-25 cm). Kulesi zezihlahla oblong-okusaqanda ukuma ishidi. Entwasahlobo ka umqhele iba Umbala abomvu, futhi ngesikhathi ehlobo kushintsha umbala yayo luhlaza okotshani, kanti ingxenye ephansi iba mhlophe. amahlamvu Shade kuyahlukahluka ukuwa. Kungaba kusukela ocebile nezibubende Burgundy. amahlamvu Amafomu ekwindla musa ukushintsha.

Red Oak (kungenjalo ibizwa ngokuthi North) - isihlahla abade (kufika ku 25 m), okuyinto has a umqhele obukhulu. Amahlamvu aso makhulu, abe blade ngensimbi. Igama layo kungumuthi etholwe ngenxa amahlamvu, okuyinto has a umbala obomvu e ekwindla kanye entwasahlobo.

amahlamvu e-maple

Eurasia iyikhaya maple. Kungumuthi lezihlahla nge aminyene laphetha, umqhele ububanzi. Ngesikhathi ukuphakama ifinyelela 30 amamitha. Umuthi kungaba ziphila ngaphansi kwezimo ezikahle kuze iminyaka 200. Amahlamvu aso zinkulu, ubukhulu yabo 18 cm. Baye liphinyiselwe emithanjeni. Umumo Maple Leaf simiswe ngalendlela lelandzelako: it has 5 izindwani, eyaphumela iyizingxenye ezicijile. Kulokhu izindwani ezintathu phambi musa ihluke nomunye, futhi ezimbili aphansi kancane ezincane. kude Oyindilinga aphakathi bonke ngothi lwabo. Petioles eside. Ngokuqondene umbala, futhi luyehluka kuye ngokuthi yisiphi isikhathi sonyaka. Ehlobo Amaqabunga aluhlaza ngenhla futhi oluhlaza ukukhanya ngaphansi. In autumn baba ensundu, obomvu, maroon kanye shades brown.

Ngakho, siye sacabangela ukuma eziyisisekelo amaqabunga. Ekugcineni, siye sitshele ngendima yazo.

okusho amahlamvu

Umsebenzi obaluleke kakhulu Ukwakheka kwezitho udaba eziphilayo. Elikhulu futhi flat ishidi ipuleti yimisebe yelanga. Kuthatha indawo amaqabunga inqubo ye-photosynthesis. Ngosizo lwabo, lesi sitshalo futhi iyasha amanzi. Ungashintsha ukushuba inqubo, ukuvala, kuvule stomata. Ngaphezu kwalokho, ngosizo leaf negesi lokushintshisana kwenzeka. Carbon dioxide futhi mpilo Kondliwa stomata. Oxygen luyadingeka ukuphefumula, nesikhutha kudinga isitshalo ukuze zamagama izinto eziningi eziphilayo. Phakathi leaf ukuwa izinto ezingadingekile ziyasuswa, ebusweni izitho zasemoyeni incipha esikhathini esibi. Plant iyasha amanzi kancane, umqhele aqoqana iqhwa kancane, okusho ukuthi ngeke aphule.

Similar articles

 

 

 

 

Trending Now

 

 

 

 

Newest

Copyright © 2018 zu.unansea.com. Theme powered by WordPress.