1 88 The Scottish Naturalist. 



On living leaves of Arctium Lappa, at St. Cyrus, and of 

 Petasites vulgaris near Aberdeen, in autumn. 

 Tay, Dee. 

 *75- A. Primulse Trail (D. & R. Trail, Sc. Nat. 1877, p. 88). 

 On leaves of Primula vulgaris near Stonehaven. 

 Dee. 

 *76. A. Plantaginis 2234 (D. & R. Trail, Sc. Nat. 1877, p. 90.) 

 On leaves of Plantago major, near Aberdeen. 

 Dee. 

 Spots circular, brown, becoming pale in the middle; pycnidia 

 lenticular, with a wide opening, dark brown ; sporidia oblong, 

 6-8 by 2-2J, straight or curved, each cell guttulate, hyaline. 

 Italy. 



b. On Leaves of Monocotyledons. 

 *77- A. teretiuscula Sacc. and Roum. 2243, C. 465, S.M. 3035 

 (D. & R. Trail, Sc. Nat., 1885, p. 128). 

 On leaves of Luzula maxima. 

 Dee. 

 *78. A. Alismatis(Oudem),3093 (sub Septoria A Usniatis Oudem.) 

 (D. & R. Trail, Sc. Nat., 1887, p. 91). 

 On spots on leaves of Elisma Plantago, at Kingcausie, near 

 Aberdeen, in October. 

 Dee. 

 Spots nearly black, approaching circular, becoming paler in the 

 middle ; pycnidia small, black, difficult to see, innate ; sporidia 

 rodlike, 18 by 2-2 J, straight, uniseptate and constricted in 

 middle, hyaline. 



Belgium, North America. 



{Note. This species connects the genera Ascochyta and Septoria, 

 but comes nearer the former.) 



*79- A. grammicola Sacc. 2252 (D. & R. Trail, Sc. Nat. 1887, 



p. 88). 



var. Brachypodii Trail, on Brachypodium sylvatkum. 



var. leptospora Trail, on Agropyrum repens and Psamma 



arenaria ; both near Aberdeen. 



Dee. 



XV. Actinonema Fries. 



Pycnidia minute, almost superficial, mouthless, situated on a 



branched, radiating, web-like subiculum on leaves ; sporidia 



stalked, oblong, two-celled (or 2-pluri-septate), hyaline. 



