ZYGODON. 



[ 829 ] 



ZYMOMES. 



of some Thelephoroid Fungus. Currey has 

 shown that Corda's figure (fig. 812) is not 

 completely accurate, since he finds the 



Fig. 812. 



Zygodesmus fuscus. 

 Magnitied 400 diameters. 



points at the apex of the fertile pedicels 

 each crowned by a spore j and the normal 

 number of sterigmata is probably four, so 

 that the structure would resemble a basi- 

 dium of Hymenomycetes. The above figure 

 is after Corda. 



BIBL. Berk. Crypt. Bot. 298; Currev, 

 Micr. Jn. v. 126. " 



ZYG'ODON, Hook, and Taylor. A genus 

 of Orthotrichaceous Mosses, deriving its 

 name from the yoking of the teeth in pairs ; 

 the species are mostly found in mountainous 

 districts and rarely in fruit. 



ZYGOGO'NIUM, Kite. A genus of 

 Zygnemaceae (Confervoid Algae), consisting 

 of filamentous plants, growing on damp 

 ground or in water, green or yellowish 

 when fresh, purple or brownish when dry. 

 Kiitzing includes here all HassaU's species 

 of Tyndaridea (ZYGNEMA) which produce 

 the spore in the cross branch. 



Z. ericetorum, Kiitz. Filaments 1-2160 

 to 1-1440" in diameter, joints as longer half 

 as long again, cylindrical or torulose (fila- 

 ments sometimes slightly branched). Con- 

 jugation rare, apparently mostly 'chain-like,' 

 from one cell to the next in the same fila- 

 ment. Contents green when growing in 

 water, purple when growing on wet heaths 

 (Hass. pi. 41; Greville, Sc.Crypt. Fl. pi. 261. 

 fig. 1). Conferva ericetorum, Dillw. 



See ZYGNEMA. 



BIBL. Hassall, /. c. ; Greville, /. c. ; Kiit- 

 zing, Sp. Alg. 445, Tab. Phyc. v. pi. 10 ; 

 Eng. Bot. pi. 1553 ; Eabenh. Alg. iii. 251. 



ZYGOMYCETES. A group of Fungi, 

 in which conjugation takes place, corre- 

 sponding to the Conjugatae of the Algae, as 

 in the Mucorini &c. (Brefeld, Schimmel- 

 pilze, 1872 ; V. Tieghem, An. Sc. N. 5. xvii.; 

 Sachs, Bot. 268.) 



ZYGOSEL'MIS, Duj. A genus of In- 

 fusoria, of the family Euglenia. 



Char. Form variable j movement effected 

 by two flagelliform filaments, incessantly in 

 action. 



Z. nebulosa (PI. 32. fig. 23). Body colour- 

 less, sometimes globular, at others variously 

 expanded so as to become pyriform or 

 top-shaped, turbid from the presence of 

 numerous granules. Freshwater; length 

 1-1100". 



BIBL. Dujardin, Inf. 369; Kent, Inf. 

 417. 



ZY'GOSPORE or AUXOSPORE. The 

 result of the union of conjugating Algae. 



ZY'MOMES =MICROZYMES. 



THE END. 



I'UINTED BY TAYLOR AND tKANCIS, KED LION COURT, FLEET STREET. 



