BY D. McALPINE. 375 



variously branched, curved, enveloped more or less by brown 

 h3"phae, may be swollen towards base and taper gradually towards 

 apex, or may be of equal diameter throughout, opening by minute 

 circular mouth. Pycnospores minute, oval, hyaline, 3 x 1^/*. 



Richmond River, N.S.W. (Baker); on branches and branchlets 

 of Casuari7ia torulosa, Ait.; August, 1897. 



5. Leptosph.eria cann.e, n.sp. 



Perithecia scattered, minute, black, erumpent, depressed- 

 globose, membranaceous to coriaceous, with distinct apical pore, 

 100-120 n diam. Asci elongated-clavate, attenuated at base, 

 8-spored, 90 x 20-2 1 J /z; paraphyses as long as or longer than asci, 

 numerous, filiform. Sporidia distichous, olivaceous, fusoid, obtuse 

 at each end, with granular contents, 3-4 septate, usually slightly 

 curved and constricted at septa, 18 x 6J-8 /a. 



Armadale, near Melbourne, Vic. ; on upper surface of pale 

 brown withered patches of leaves of Carina indica, L.; July, 1902. 



It differs from L. musarum, Sacc. & Berl., in the perithecia 

 being scattered, the longer and broader asci, and the distinct and 

 numerous paraphyses. The leaves of Canna are often much torn 

 by the wind, and large patches become brown and withered, so 

 that the diseased appearance may not be caused by the fungus 

 which is comparatively rare. It was associated with Pleosjyora 

 herharum, Pers. 



6. Macrosporium internUxM, n.sp. 



Forming variously coloured, velvety patches covering the pulp 

 inside, while the skin of the Orange is healthy-looking. M3^celium 

 consisting of dense masses of hyphse, dark green collectively, but 

 passing through colourless and yellowish-green phases. Hyphse 

 generally closely septate, copiously branched, and branches often 

 at right angles, i\-'6\ jx broad. Conidia amber-coloured at first, 

 then olivaceous, stalked, clavate, 5-8 transverse septa, and usually 

 more or less constricted at septa, with longitudinal septa either 

 single or double in each segment, variable in size, 37-75 x 17-20 /x. 



Sydney, N.S.W. C. French, Junr.); on Mandarin Oranges; 

 Sept., 1900. 



