429 



On dead stems of Prunella vulgaris (Beam. Crypt. Fr. ser. ii. 

 no. 353 !). No doubt the pycuidial stage of Din port-he Desmazien, 

 Niessl, which sometimes occurs with it. The latter has been 

 found in Britain (Diaporthe Labiatae, Cooke in Grevill. v. 63 , 

 but the P homo psis -stage has not yet been recorded here. 



The same Phomopsis was issued by Testergren (Microniye. 

 rarior. sel. no. 64!), on stems and leaves of Prunella grandi- 

 flora in Sweden. Since the leaf -form differs externally somewhat 

 from the stem-form, a description is appended; — 



Pycnidia on the fading leaves, epiphyllous, densely scattered, 

 but the leaf is not blackened, round, convex-depveisedj 250 u 

 diam., piercing the epidermis by the papilla, but less prominent 

 than on the stem. The proliferous stratum is much yellower, but 

 all the spores are the same. 



B and C spores could be found in abundance in each pyenidium, 

 but no certain A-spores could be found and their description is 

 copied from Saccardo. Desmazieres gives the A--pores as 

 " oblong, straight, subfusiform, about 10 x 3 /* ?? ; what 

 Saccanlo's description represents is doubtful, perhaps a con- 

 fusion of A- and C-spores. There seems to be a tendency for the 

 C-spores to become 1-septate. 



This species is recorded by Diedicke on Melampyrum, 

 Euvhrasia* and Odontites, as well as on Prunella. 



779. Phoraa multipunctata, Sacc. 

 Phomopsis multipuxctata, Died. Annal. Mycol. ix. 26. 



Pycnidia crowded, arranged more or less in lines along the 

 stem, oblong, convex, 500-700 /x long, imperfect, very black, 

 covered by the epidermis, then opening by an impressed pore, 

 each pyenidium surrounded by a faint black stain. A-spores 

 elliptic-fusoid or oblong, often acute at one end, but also often 

 obtuse at both ends, bi-tri-guttulate, 6-8 x 1*5-2 /x; sporophores 

 subulate, acute, 10-12 p long : B-spores filiform, flexuous or 

 hamate, 15-20 (or occasionally 24) x 1-U p., on short sporophore-. 

 (Fig. 1, c \ 



On dead stems of Lamium album, Padua (Hycoth. "V en. no. 



1545!). Not Bourn. Fung. Gall. exs. nos. 5274! and 5549! 



(f. major), neither of which at all resembles Saccardo's -peciniens. 



A very typical Phomopsis, -recognisable as such at a naked-eye 



view. No doubt the pycnidial stage of Diaporthe Ttdasnei, Nits, 



■i 



a nee 



which is also possibly a stage of the same Diaporthe, but, in view 

 of the total absence of cultural experiments, the external differ- 

 ences are sufficient to justify their separation for the present. 



792. Phoma Spiraeae, Desm. 



Phomopsis Spdiaeae, Grove. 



Pycnidia gregarious, arranged longitudinally on the stem, oval. 

 imperfect, shining, black, 250-500 ,u long, immersed, not 

 prominent, at length opening by an impressed pore, each 

 surrounded bv a brownish halo and sometimes in the midst of an 



