DTAUNOSES OF Fir\(}T FROM *' SPOTTED " APPLES 239 



ASCOMVCETES. 



Pleospora pomorum nov. sp. 



Hyi)lils vjirie raniosis, subrepentibus, septatis, fuligineis ; peritheciis 

 sparsis v. subaggregatis in maculas bmiiiieas in I'ruetu suhininK.'rsis, 

 erunipentibus, pyriformibus, rectis v. ciirvatis, atris, aspe'Hs, circa 1 nnn. 

 long., ostiolo circa 94 /^ d. ; ascis cylindraceis, rectis, brevistii>itatis, 

 octosporis, lGU-220/i long , circa 2'S fx lat. ; sporidiis ovato-oblongis, 

 subclavatis, medio constrictis, inordinate distichis, murit'ormi-septatis, 

 7-septatis, longitudinaliter 1-2 rarins 8 seriato-septatis, initio aureis 

 deni fuscis, 81-40/i long., 10-3-15-5 ^ lat. (aureis), 28-8i-o/x long., 

 13-14 /x lat. (fuscis). Conidiis stenipliyliformibus in ramulis acro- 

 genis stipitatis circa 150 ^t long., 2-3-3 -o /x lat., ex apice raniuloruni 

 intlato colorato, si)luero-quadrilateralibus v. irregularibus, tuberculatis, 

 septis pleruni(|ue 3 transv. et 1 longit. divisis, 23-38-5 yu long., 13-5- 

 23 ju lat. fuligineis. 



Varieties from whicli Fleospora joomoruni has been obtained : — 

 Allington Pij)pin, Ben's Ked, Bismarck, Bramley Seedling, Byford 

 Wonder, Calville Boisbunel, Cardinal, Charles lioss, Cox's Orange 

 Pippin, Domino, Duke of Devonshire, King of Tomkins Co., Lod- 

 dington, llival, lloyal Jubilee, Tower of Glamis, Wealthy, Winter 

 Quarrenden. 



N.B. — Only infertile perithecia have been found in apple '' spots." 



Hypkomycetes. 



PkOMATALES (SpHiEEOPSIDACE.^:). 



The non-stromatoid h3^alosporous amerosporous Phomatales hitherto 

 described by systematists comprise genera with simple pycnidia. 

 The pycnidium of such a fungus — for example, that of a Plioma or 

 Phyllosticta — consists of a spha^roidal body from which the s^Dores issue 

 by \\2iy of a circular orifice, or in some species the body is terminated 

 antically by a conoidal elevation, which, for example, in Plioma 

 JiiKjam (P. oleracecd Sacc.) is 80 yu-140 /* long, and measures 

 2OO;u-350/x in diameter at the base. The pycnidia of the species 

 isolated from a])ple, however, although unilocular as in Plioma, differ 

 from the strictly phomoid type in developing one or more tubular 

 neck-like outgrowths, which are often bent or curved and even 

 branched. 



Accordingly a genus has been established possessing these unusual 

 characteristics, and the name Polyopeits * has been given to it. The 

 genus comprises a series of forms ranging from species with pycnidia 

 occurring singly, and more rarely aggregated (P. purpiirciis and 

 P. pomi), to others in which the pycnidia develop as a rule in closel}^ 

 associated groups presenting a stromatoid appearance as well as singl}'- 

 (P. aureus and P. recurvatus). 



Polyopeus nov. gen. 



Pycnidia immersa v. subimmersa, solitaria, aggregata v. congesta, 

 unilocularia, hyalina v. sub-carbonacea, subglobosa v. irregularia, 

 unirostrata vel multirostrata, membranacea ; rostra tubuliformia ; 

 sporula? continuse plerumque ellipsoidea?, liyaHnae vel rarius colorata?. 



* I owe the suggestion of the name to Profes.sor J. B. Farmer. 



