240 DoiteromycetiB, Sphperioidacefe, Hyalospor.i», Phyllosticta. 



tis, nigris; sporulis oblongis, rectis vel curvulis, liyaliuis, bigut- 

 tulatis, 12=* 3, utrinque rotundatis. 



Ilah. in foliis Alni glutinosie in Hollaadia. — A ceteris 

 speciebus alnicolis sporulis majusculis biguttatis distincta. 



96. Phyllosticta Betulae Oad Contr. a la FI. Myc. des Pays-Bas 4017 

 XVIII, p. 743. — Pycnidiis hypopliyllis sparsis, innatis, globu- 

 losis 80 |j.. diam., membranaceis, nigris, paullo emergentibus, poro 

 pertusis; sporulis bacillaribus, liyalinis, continuis, initio truncatis 

 dein utrinque rotundatis, eguttulatis 2,5-3 «0,5; basidiis filiformi- 

 bus, continuis, liyalinis, 6-10 [i. altis. 



Hab. in folii Betuhe albfe, Bussum HoIIandiaB. — Ph. betu- 

 lince Sacc. affinis. 



97. Phyllosticta Alcides Sacc. — Syll. III, p. 34. — f. americana ^oi^ 

 Sacc. et D. Sacc. Phyllosticta Alcides Ell. et Kell. in Ohio Natur. 

 1902, II, p. 262. — Maculis cinereis, epiphyllis, subindefinitis 2- 



4 mm. ; pycnidiis sparsis, punctiformibus 100-120 a. diam., epi- 

 dermide velatis dein erumpentibus; sporulis breve fusoideis vel 

 oblongis, luteolis, 2-3-nucIeatis, 7-15 v 3-3,5. 



Ilah. in foliis Populi albae, Waynesville, Ohio, Amer. bor. 

 (Kellermann). — Socia adest Leptosphcuna Alcides Sacc, cujus 

 pycuidium videtur. 



98. Phyllosticta prominens Oud. Contr. a la FI. Myc. des Pays-Bas ^019 

 XVIII, p. 746. — Pycnidiis amphigenis, innatis, gregariis, com- 

 pactis 120-400 « 120-300, papilla prominentibus, summo poro per- 

 tusis; contextu membranaceo, molli, brunneolo; sporulis ellipticis 



V. oblongis, utrinque rotundatis, continuis eguttulatis, 5-7 « 3-5, 

 hyalinis ; basidiis 8 [).. longis. 



Ilah. in foliis Populi balsamiferii?, Biissum HoIlandioB. 



99. Phyllosticta bacteriiformis (Pass.) Sacc — Syll. III, p. 34. — 4020 

 forma Quercus C. Mass. Novit. Fl. Myc ver. 1902, pag. 67. — 

 Pycnidiis 70-100 ij.. diam., hypophyllis, nigris, dense gregariis; 

 sporulis bacillaribus 5-7 '^ 1,5 utrinque vix incrassatis et rotun- 

 dato-obtusis. 



Ilab. ad folia emortua Quercus sessi 1 i f lor oe, Verona Ita- 

 licD borealis. 



100. Phyllostlcta illciseda Sacc. in Atti congr. bot. Palermo 1902, p. 54. 4(i21 

 — Maculis plerumque epiphyllis, latis, irregularibus, ex albo avel- 

 laneis, linea nigra cinctis; pyctiidiis laxe gregariis epiphyllis, glo- 

 bpso-discoideis 200 300 [i diam , epidermide diaphana radiatim 



