FUNGI IMl'KUFKt.TI. 463 



I. SPHAKlKil-slhKAK. 



< 'onidia alijointed from conidiophoiv- '-..maim-d in <lnrl- 

 colt mrnl pycnidia somewhat spherical in f'unn. Tin- variou.- 

 species are provisionally arranged in -cni-ra aeeordim: t.i tin- 

 colour of the c-onidia and tin,' nund>ri of cell- contain. -d in 

 them. The families here int-ludrd are the Sphaerioideae, Nee- 

 trioideae, Leptostromaceae, and A 



i. FAM. SPHAERIOIDEAE. 

 HYALOSPORAE. 



Phyllosticta. 



Fun^i with colourless spore-. and pn iducini: sharply 

 spots on livinu lea\>-. They occur on all kinds of woody plant-. 

 luit as a rule the injury caused is too slight to 1"- <-;dlrd a disease. 



From thr Ion- li-l idvrn liy Sareardo ( Vol<. in., ix., and \. i 



tllr following liaVr lirrli Selrrtrd : 



Phyllosticta persicae Sacc. This ppiduco mi leaves of peach 

 liriiwnish-yellow spots, fre([Ueiitl\ in. irked ]>y euiirriitrir zones. 

 The name "shot-holt- fun-u- " ha- s.imrtime- hern ajijilied to 

 ;hi> and other allied form-, because the leaves become more oi 

 less perforated \>\ the withered spots falling out. The jiyenidia 

 on reaehin- maturity rupture tin- lower epidermi.- of ih,- l.-af 

 in a star-like manual. Urio.-i and ('avara do not regard thi- 

 parasite as \t-ry harmful, because leaves attacked liy it remain 

 alive without serioii- prt-judice to their function. 



Ph. pirina Sacc. has In-en observed injuriou- to pear-trees at 

 i .rj-rnhrini (( irrmany ). 



Ph. prunicola Sacc. is tin.- cause <>l -pnttin- of Leaves of 

 apple, plum, cherry, and apricot. (U.S. America. ' 



Ph. cytisi I'e-m. < )n h-a\e-> of Cytisus LI>I>/-HH/H in 

 I'.ritain and Muro]M-. 



Ph. acericola I'ook et Mlli-. ( >n vaiimi- species 



maple (Acer dasycarpum, etc.). ' l i> desn-iln-tl Ky (lallouay 



'Tlit- i-iij.-i" .niili.n iti.-- i. u tin- occurrence "t ill. 1'un-i in, ' m 



lii it.iin .unl N'urtli AIII.-II..I .HI- \l . ..... /.' /' / I-''. I d|.i\\ 



.mil SiAinniir >// IKI/-.I I'n,- /'..s 1 . America, I^'M . mil - . s 



funf jorum), I'P I. \\'. II. Trail kin<lly r-\-i>nl r.nt.un 



I lit. . 

 -Call'.u.iN. i:.'|,.,n of r For 1888 U.S. A 



i'/' . I ;/('( /'"/ . . \\ i -Illll-t'Hl. 



