NEW BRITISH FUNGI. 
93 
Phoma pruni-lusitanicae, Cooke. 
Gregarious. Perithecia subglobose, collected about the ex- 
tremities of slender twigs, elevating but scarce discolouring the 
cuticle, which is pierced by the minute ostiola. Sporules fusiform, 
binucleate, hyaline (’01 x ‘004 mm.). 
On twigs of Prunus lusitanica. Kew. 
Phoma Herminierae, Cooke. 
Perithecia small, densely gregarious, nestling in the bark, and at 
first covered with the cuticle, which is soon split in a stellate 
manner, exposing the black depressed perithecia. Sporules lanceo- 
late, binucleate, hyaline (*01 x '0035 mm.), sporophores simple or 
furcate, elongated ('04 mm.) thin. 
On bark of Herminiera elaphroxylon. Grown at Kew. 
Phoma platanoidis, Cooke. 
Perithecia subcutaneous, erumpent, gregarious, splitting the 
epidermis so that the twigs are rough, like a rasp. Sporules fusi- 
form, rather acute, binucleate, hyaline (*007-'008 X '003 mm.) on 
straight sporophores, which are twice the length of the sporules, or 
more. 
On slender twigs of Acer pseudoplatanus. Kew. 
In company with Calospora platanoidis , of which probably the 
spermogonia. 
Phoma Philadelphi, Cooke. 
Perithecia rather small, generally gregarious in lines, covered by 
the cuticle which is scarcely elevated, immersed in the bark, 
depressed, black, pierced. Sporules cylindrical, obtuse at the ends, 
not nucleate (*012 x *0025 min.) hyaline. 
On stems of Philadelphus. Kew. 
Distinct in habit and fruit from P. Landeghemice, which occurs 
on smaller branchlets. 
Phoma rhododendri, Cooke. 
Sub-gregarious, on small dead twigs which are bleached, small, 
covered by the cuticle which is elevated, but scarcely discoloured. 
Perithecia subglobose, black. Sporules minute, oval, hyaline, 
without nuclei ('004-*005 x *002 mm.). 
On twigs of Rhododendron. Kew. 
Phoma amelanchieris, Cooke. 
Sub-gregarious, corticolous. Perithecia immersed in the bark, 
elevating and cracking the cuticle, globose, black, of medium size. 
Sporules subfusiform, obtuse, binucleate ('008 X *0025- '003 mm.), 
on thin curved sporophores which are three times as long. 
On Amelanchier branches. Kew. 
Phoma dispersa, Cooke. 
Hypophyllous. Perithecia scattered, rather large, subglobose, 
erumpent then subsuperficial, black, opaque. Sporules elliptical, 
continuous, hyaline, without nuclei (*015 x '006 mm.). 
On fallen leaves of Platanus. Kew. 
