TLkfkMTazwb mmiEOKTi Anodonta. 75 



BJieuie panbi nyxeMi) wriepBHquaro HaTfl>KeHi}i». .Inuibxt AajibHtnuiia naTo^ormccKifl n^Mineiiia, 

 KOTopbifl noflBJuaioTCfl sarfeMi y pbi6i. B-h cxtHKaxx uncibi h Booome bx dawteMa BOKpyn> 

 nopaiKeHHaro Mtcxa, JiHint hxi cjitiiyex^ cHHTaxb— h xo xojibKo ewn ohh saxoAaiiaa nsetcxabie 

 npeatjibi — 3a peaKu,iK) Ha pasApajKeHie, npHqaHJieMoe rjioxHflieMi. 



CaMoe ABnJKeHie BnepeAT> 3nnxejiiaJibHaro BajiHKa npoHcxoAHxi no BciiuT) B-fepoflxifiMi. 

 npeajAG Bcero aMcxBHxejibUbiMi. DepeABHHKenieMt paHbLue cymecxBOBaBiuHxi. 3UHxejiiajibHbixi 

 latxoKi, HO aaxtiMi CBaaaHo necoMH-feHHO h cxpocxoM-bjX. e.pasMHOJKeHie.MTj KJitxoKx. SaMtia- 

 xejbHO noaxoMy, ixo h hh pasy ne u&djiioji.aji'h npa oSpasoBaHin uhcxw y rojiOBacxHKa mhxost.; 

 npn o6pa30BaHiH uHCXbi y pbiS-b Mnxoaw naSjiioAajiHCb xaKate Kpafiiie ptAKO, ne qame i-feMi. ohh 

 BOoCme nonaAawxca b^ hxi annAepM-fe. HyaiBO npHnaxb ii03X0My, ixo npn pocxit anHAepMHie- 

 CKaro Ba.inKa npoHCxoAnxTi npaiioe A'feJieHie aAep'b. Bx otomT) oxnoineHin HaS.iwAeHia Mon 

 coBnaAawx'L ci, HaSjiioAeHiaMH Balbiani h Heuueguy') uaAT> npoaeccoMi sajKHBjeHifl 

 antJAepMbi Bt xsocxt rojiOBacxHKOB't. Oim saHHMajiHCb npapamnBaHieM-b XBOcxa OAuoro 

 roJiOBacxHKa k^ rtjiy Apyraro. DpHpamnBaiiie npoHcxoAHJio 6bicxpo h Bbipaatajiocb cnepsa 

 oSpasoBanieMX niBa b^ sitcxt hxt> ciiflHia, noxoM'b nojiHbiM^ coeAHweoieM^ 3nHxe.iiia.iibHbixi 

 cjioeBi AByxT, H{nBOXHbiXT>. Hpn axoMb npoHCxoAoo 3HaqHxejibaoe pasMnoatenie KJitxoKi., qxo 

 npHBOAHJio KT> o6pa30BaHiK) 3nHxe.iiajbHbixT. BbipocxoBi HJiH no'ieKTj (bourgeons) baojib M-fecxa 

 noptsa — KaKi 3xo HaSjiioAajiocb mhow npn saatHBJieHiH paHKH opHqHHeHHOH roJiOBacxHKy rjo- 

 XHAieMTj. ABxopbi ocoSeHHO oxM-feaawx-b oxcyxcxBie mhxo3t> npa 3xomt> 6bicxpo»n> pa3MHo;KeHiH 

 K,TfexoKT>, 1X0 HMX Aaexi ocHOBanie npnnncbiBaxb h aMHxoxnqecKOMy A'^-'ieHiw HAepb pereeepa- 

 XHBHoe 3uaqenie. 



YmeMJieHHbiH KvcoqeK^ KoacH (pnc. 74) aa KopoxKoe BpeMH, icoxopoe npoeoAHTT) rjioxHAin 

 Ha HJiaBeHK-fe rojiOBacxHKa (3 — 4 aha, caMoe 6ojibinoe) He noABepraexcfl oco6biMT> H3M'fcHeHi>iMi. 

 KjitxKH 3nHAepMbi B^ ymewjieHHOMX KycoiK-fe ntcKOJibKo M-feHflfoxt CBOK) O'opMy: ohh Men-fee 

 Bbixanyxbi bt> AMuy, HtMt npa uopMajibHOM'b nxx nojoaKeHiH bt. an^AepMi XBOcxoBaro njiasHnna, 

 cxaHOBflxca Bbirae n KaKt 6yAT0 HicKOJibKO Kpynaie, ohh cawH n hxi sApa. Bi hoakohihoh 

 coeAHUHxejibHOH XKaHH, y camaro Micxa npHKptnjieHia rjioxHAia, y Kpaa ero cxBopoKi, 6bicxpo 

 o6pa3yexca CKonjeaie jieHK00,HX0BT): hx-b aobojibho mhofo yaxe lepeai) 2'^/^ naca nocjii 3apa- 

 Hceaia, Oxt> axoro CKonjema JieHKOitHxoB^ h oSpasyexca BOKpyrx rjioxHAin noMyxHtaie, 6iio- 

 Baxoe naxHbimKO aa Kpaw XBOCxoBaro HjiaBHHKa, bhahmob Ha atHB0MT>; KaK'b ynoMaayxo, Gjiaro- 

 Aapa npospaqHOCXH xKaan XBOcxosaro njaBHHKa, 3xo CKonjieHie JiefiKOi^nxoBb moh;ho HafijiOAaxb 

 H npn h;h3hh noA'b MHKpocKonoMX. CKonjieHie JieHKOunxoBt oAnaKO oobnaoe, no ne nocxoauHoe 

 ABJieHie, y HiKoxopbixi rjoxHAieBx ero He HaSjiioAaexcH. Bcero 6ojbaie 6biBaexT> jienKoi;HxoBTj, 

 KorAa r-ioxHAifi yxBaxHJca sa KpaH njiaauHKa 6jih3ko OTh OAHoro h3i bojochbixi cocyAOBi,: 

 xoFAa MOJKHO BHA^xb CKOHJieHie jieHKon,exoBi BOKpyricocyAa h KaniSbi AopowKV hst^ JiewKOunxoBi, 

 HAymyio OTL cocyAa kt> Mtcxy npuKptnjieHia rjioxHAia. JleHKOAHXbi npoHHKaioxi xaK«e h b% ymcM- 

 jieHHbiH KycoaeKi kohcb, h HiKoxopbie h3t> hhx^ npoKJiaAWBaioxt ce6t Aopory xaKace f AaJitme, 



1) Balbiani etHenneguy. Sur la signification physiologique de la division cellulaire directe. C. R. Acad. Sc. 

 Paris. T. 123. 1896. 



10* 



