r,AsiMo\n -t ETES. 



The sporophoivs, known as hasidia. are -tnu-nuvs with a 

 definite shape, and with lateral hranchcs, tin- -teii-mata. from 

 which a definite numher of exospores- -basidiospor* --- are ah- 

 jointed, the hasidia then hecomin^ fuiiei joule . I'.a^idia and 

 hasidiospore- are characteristic of all Ha-idiomycete-. conidia 

 and chlamydospores heim: produced only exceptionally. 



The lia-idia -em-rally arise from an extended layer the 

 hynieninm which in the higher ^.-nera forms par! of a ron- 

 -j.iciioiis ciinij.lcx sj)oro]ihorc. The l'a>idia do not therefore 

 originate from the germination of a spore, a.- do the jiromyeelia 



of the I'l'edilleae alld I ' -t 1 1 a U i 1 lea e, lillt frolll sperial >l>olo|,h ..... - 



irai-ely frmn the mycelium itself), who-,,, surface they occupy, 

 or in which they are enclosed. 



In the conr>e of development, two nuclei have liceii t'onnd 

 to copulate in the hasidial cells. Thereafter they divide and 

 produce four (lately two) new nuclei (Autobasidiomycetes), or 

 after the division of nuclei, crOSS-septa are formed, thus making 

 the hasidia pluricellular (Protobasidiomycetes). In hoth ca 

 the nucleus passes tluouuh the steri-mata into the developing 

 i)iisidio>pores, and on the germination of these spores, it divides 

 into two nuclei, the -t nlinu points fur further nuclear divi-ion. 



AS just indicated two di\ isious of the -roiip may lie dis- 

 tinguished: (1) Protobasidiomycetes, <_) A.utobasidiomycetes. 



ri:'ir.ii:.\^lMi>\n l PKS. 



I'nder this class are included the A n rimlu rii, , /'/////../.. and 

 '/'/,////,///,, the til-i two possessing hasidia divided, as a rule. 

 l,v cro ---- epta into four cells, the last with hasidia al-o divided 

 into four i-el|s, \\hich are lormed, lio\\c\cr. hy two longitudinal 

 wall- set at ri'jhl angles to each other. A sierivjna grows out 

 from each cell and produce-, a Mii-lc spore, after which the 

 lia-idium dies a\\a\. The hasidia of the PilaCT&U ale produced 



inside closed -porocaip^ (angiocarpous), those of the otho t\\,. 



.:p> are exposed (jymnoi-arpoiis). 1'ai'a-ites are nnknuwn 



Protobasidiomycetes. 



\ rOBASIDIOMTl i i 



I'. . -idia unicellular ( aiitoha^idia ), the mala foi med mi 



ihe ape\ of the I >a - id i 1 1 in , a 1 id each giving "II !' ha-ldio- 



