The Scottish Naturalist. 



75 



Cercospora Ii sp.ri. 



On leaves of Viola palustris at Dalmally and near Inveraray ; 

 spots amphigenous, 2-5 mm, broad, dull-coloured, then 

 paler, indeterminate, surrounded with a broad dull border ; 

 hyphae creeping, branched, bearing erect aseptate conidio- 

 phores (denticulated close to their tips), which measure 

 30-40 by 4-5. Conidia solitary (? always), cylindrical, or 

 tapering slightly upwards, straight or curved, 20-60 by 5-7, 

 3-6- septate. All parts are pale fuliginous brown. 



This species, though resembling Ramularia in some respects, 

 seems to belong to Cercospora. It probably comes nearest 

 to C. murina Ell. and Kellerm. I have found what appear 

 to be its spots on V. palustris near Aberdeen and in 

 Orkney, but as they did not bear conidia, I could not be 

 certain of their identity. 



Cercospora microsora Sacc. 



On leaves of Tilia vulgaris at Inveraray, producing small very 

 dark brown round or oval spots ; conidiophores emerging 

 in clusters, aseptate, about 20-25 by 3"4> denticulated 

 above ; conidia fusiform or subcylindrical, tapering a little 

 upwards, 25-45 by 3-4, 3-6-septate ; all parts pale fuliginous 

 brown. 



Graphiopsis g.n. Floccis atris, simplicibus, septatis, typhis ferti- 

 libus erectis, apice simplicibus vel parce-ramulosis, catenulas 

 conidiorum fuscorum gerentibm et capitulum formantibus. 



Berkeley and Broome (Ann. N. H. 1859, No. 8t8) established a 

 new genus under the name Haplographium (" Flocci atri 

 non fasciculato-stipati, articulati ; spora3 concatenate, 

 hyalinse "), and referred to it Graphium temiissimum Corda, 

 and Periconia chlorocepthala Fres., as well as a new species 

 named by them H. delicattwi, of which a figure is given. 

 In "Science Gossip," 1885, pp. 196-98, W. B. Grove dis- 

 cusses the genus, in which he includes the above species, 

 and also another, off dead wood — viz., If. bicolor Grove. 

 The latter species is common on various kinds of dead 

 wood near Aberdeen. A careful examination of it and of 

 P. clilorocephala has convinced me that they are not truly 

 congeneric with one another, nor with 11. delicatum B. and 



