PHOMA. 



407 



leaved trees, but details in regard to their parasitism an- 

 wanting. 



Ph. Hennebergii Kiihn. 1 Brown-spot of wheat-ear-. This 

 produces, on the glumes of wheat, brown spots with projecting 

 ] \-i-nidia from which unicellular ci.nidia emerge. Tin- "rain 



I 



attacked ear- -hrivel U]> and become -potted, while tin- value 

 of the chaff as fodder is much diminished. Whole ti--lds may 

 be attacked, showing marked discoloration, and producing but 

 few healthy eai The i'ungus may also 



appear on the leaves and produce pycnidia. 



Ph. lophiostomoides Sacc. 3 l."priore 

 iv-ards this as a parasite on cereals, but 

 ('avara looks on it as saprophytic on the 

 dead plants. 



Ph. ampelinum he Bary (Sphaceloma 

 amflelinum he Bary). Anthracno-e of the 

 Vine. 4 The mycelium of this fungus can 

 penetrate into leaves, green bark, or fruit, 

 and kills the tissues. Spots are first pro- 

 duced, then enlargement of the nci-hbour- 

 iirj tissues takes plac.-, causing the spots 

 to appear as if sunk in depressions, and 

 ivmindin- one of hail-wounds. < >n leaves 

 and grapes, the spots are -harply defined, 

 at first dark-brown, later with greyish 

 ci-ntre- and dark-brown mar-ins. In the 

 later Stages the dried-up spots may drop out of the lea\ 



Anihraeiio-e. or " l)irds-eye rot," constitutes one of the dreaded 

 vine diseases of America and Km ope, 80 that it has nvei\ed 

 much attention, both a- to it- life-history ami remedial tneasui 



yet howe\,-r with but partial SUCCeSS. ('upper sulphate 

 -olulions seem to lie fairly succe--ful remedies, as >hown from 

 i' alts of the many experiments reeoided in the J<>n r/ml <>f 



Kn;. -_".i4. -I'lniuM Hi.- 

 limwii . 



nil >1 t .til. | 1.. ri'V ..! I 



(v. Tulic-uf .1. 1.) 



' Kulm, ll< tliri<i'ni , 1^77, [i. I '_' I : .il> in Kiil'i-nlicii .-i '> Fungi etirop. N". -J-Jtil. 

 I nk, Zeiisch. ./'/ /'//"/(-../</./'(/,//,,;/,,/. m.. is'.i;;, p. - js. 



-I'iiiL- ..ii ' \litthl. ill i I:, l.niul',. Al.'i'l. Sim-Uliiilni. IS'.NII pi 



kiml. I'llt tin- ruiiiili.-t li:i\\n I\Mi.iIN.| U in .t /' 



Kulm'.- nii-iii.-il ili.i\\ni. ..nl\ inn- i-i-lli'il cuiinlia. 



i n,i .1 KiiL--..n, /.. it :ii. /. Pflaiizenkrankheiten, in . \< _'.'! 



'Goetlll '/ ''. ///'. <t'ii. >-///". /.'/ inn r il. Hili' ii. I - nil. 



I;,,//,'.,/, la Soc. botan. d Frana 187 Prillieux (id - RAthay, " 

 /: . I>:M. Scribner, /.' ' - Inter. /'/'. ;' Agriculture, 



