ST1C.MATKA. I'll 



new conidial cushions may appear. The mycelium it-elf is 

 brown. From winter In spring, In-own perithecja containing 

 eight-spored asci may be found mi tin- same leaves formerly 

 occupied liy tin- conidia. Tlie colourless spores consist of two 

 unequal cells; they germinate in May, In-fore or after ejaculation 

 from the asci, and brin- about new infect ions. 



St. polygonorum Fr. occurs mi leaves <>t' /Vv.</"""'. (Kritain and I'.S. 

 America i. 



St. andromedae IJelnn. (>n living I'-avrs of .1 ,,,/,->, !;/, i 



St. alni Fn<-k. On living leaves of Alnus glutinosa. 



St. juniper! l)sm. (_)n living n ..... 11<-- (' ,/"/;/^''/-'/.< communu. 



Ascospora. 



The mycelium forms brown crusts under tin- host-epidermis, 

 and there the peril hecia develop. The asei are small and 

 enntain uniet'llular hyaline spore-. The ]erithecia contain no 

 paraphyses. 



Ascospora Beyerinckii Yuill. 1 The conidial form of this 

 fun-us (Coryneum /:<>/< rim-l.ii} ]n-oduee> a form of the "gum- 

 flux " of cherry trees. The mycelium lives in leaves () f ehen \', 

 ]-ach, plum, aprieot, almond, which in conset[iiciicc IM-CMIHC 

 spotted, and die oft' alon- with the yoiin- fruit. Mature 

 peritheeia may lie found in sprin-. The i'un-u< lives to a 

 e-.-rtain extent as a sajirophyte. 



Sphaerella. 



Tin- delicate perithecia are eluliedded in the tis-lles uf tin- 



host-plant; they contain asci with two-celled colourless spores, 

 liiit no jiarajihyses are present. 



Sphaerella laricina Harti-." The needle-cast fungus . i 

 l..neh. This I'liiiLius is i he cause of a dan-emus lareh-di>ea-e 

 found e\c]\\\hcrc, except in mountainous localities over iL'oil 



metres. The syiiijitolu- of diseaSG eoli>ist ill the lleedlo becoming 



brown-spotted and 1'allin- prematurely in >unmier. ('iishioiis of 

 'oniilia aiv foiine.1 iii .lime on the In-own spots; thoe enlarge, 

 and from th.-ir surface rod shapeil, four-Celled fonidia 



' Vuillemin, / travaux " ! nti_ri,/n, s. |s;in. 



i: EJartig, /' ich-naturivi#>i. '/. IMP.'I. \\. 1 1 ~>. 



I liri.iijli i||,. Uiiii|nr>^ ,,) I'mt. Martin v- II.IM- l"-"-u iii,iMr,| tn ;ul'l .111 

 nit i.l iln-, iin|M.rt,uit n<-\\ -i uith the ;i.-c< ,in|i:ili\ i \utli. 



i\. lit.) 



