290 THE JOURNAL OP BOTANY 



264. Phoma santonensis Sacc. et Syd. Syll. xiv. 868. 

 Pjcnidia somewhat crowded, and then often embedded in a thin 



black stroma, but also often standing singly, subglobose, black, about 

 250 n diam., the loosened epidermis becoming whitish above the 

 m^inute projecting ostiole, at length erumpent at the apex. Spores 

 oblong, eguttulate, rounded at the ends, 6-7 x2 fx ; sporophores not 

 visible. 



On dead twigs of lies Aquifoliuvi, in company with Camaro- 

 sporium Ilicis Oud. Quinton (Ws.). March. 



265. PnoMOPSis alnea v. Hohn. Fragm. Mykol. no. 87, p. 33. 

 Phoma alnea Sacc. Syll- iii- 98. 



Pycnidia scattered or gregarious, globose-depressed, covered, at 

 length bursting the periderm by a short longitudinal slit, blackish, up 

 to \ mm. diam. Spores lanceolate-fusoid, acute at both ends, occa- 

 sionally biguttulate, 7-10 x 2-3 n ; sporophores subulate, crowded, 

 15-20x1-1^ /A rising from a thick soft olivaceous-brown stratum. 

 (Tab. 550, £. 4.) 



On twigs of Alnus glutinosa. Cheshire ; Chatsworth (Ellis). 

 May, June. The pycnidium of Diaporthe alnea Fckl. 



266. Phomopsts corticis Grove. 



Phoma corticis Fckl. Symb. Myc. p. 378 ; Fung. Rhen. no. 1943 ! 

 Sacc. Syll. iii. 76. 



Macrophoma corticis Berl. et Vogl. Syll. Addit. jj. 312. Sacc. 

 Syll. X. 201. 



? Phabdospora ramealis Sacc. var. crass iitscula Berl. Pug. Fungh. 

 Fior. p. 85. Sacc. Syll. x. 388. 



Pycnidia oblong, immersed in the cortex, very convex, placed 

 longitudinally, black, each surrounded by a deep black shining stain, 

 up to k mm. long, covered by the epidermis, which is raised and 

 whitish at the summit and at length burst by the thick ostiole. 

 A-spores f usoid, 6-7 X 11 /a ; sporophores long, subulate, crowded, 

 curvulous : B-spores (=P. corticis Fckl.) linear, straight or bent, 

 subobtuse at the ends, 20-25 x 1-1 g ft, on shorter sporophores. 



On dead stems of Piibus, Meols, Cheshire (Ellis) ! March, 1915. 

 On living branches of Puhus fruticosus, Germany (Fuckel) ! ? On 

 dead branches of the same, Italy (Berlese), n.v. 



The pycnidia are often incomplete in the way usual to a 

 Phomopsis ; sometimes a few of them are incltided in an area which 

 is bordered by the narrow black line significant of a Diaporthe. The 

 Cheshire specimens yielded only the A-spores, but the pycnidia of 

 Fuckel's specimens are exactly identical in size, shape, and arrange- 

 ment, though they are younger and on living stems : they have the 

 true Phomopsis character and (though it is not certain) there can be 

 little doubt that they represent the B-spores of the same species. 

 Fuckel is wrong in giving the width of his spores as 3 /x, ; on exami- 

 nation of his exsiccatum it is seen that they seldom reach even 2 /x, 

 and none of them were ever seen to be guttulate, as he describes. It 

 is incorrect to unite them with Septoria ramealis Rob. et Desm. 

 Crypt. Fr. no. 2189! (Ann. Sci. Nat. 1853, xx. 94), though the 

 spores are very similar. Desmazieres' species is seated on pale 



