2B8 BERKELEY AND CURTIS, EXOTIC FUNGI. 



66. D. SCHWEINITZII, B. and C, orbicularis applanata epiphylla intus luteo-pallida ; cellulis minutis sparsis 

 superfieialibus. D. melastoinatls, Schwein. MSS., 



On leaves of some melastoma; Surinam. 



Confined to the upper surface and not penetrating the leaf, orbicular, flat, half a 

 line broad ; cells superficial, scattered. Substance of the stroma yellowish. A very 

 different thing from D. melastomatis, Fr., vi'hich has a radiated margin. 



*D. Javanensis, Schwein. MSS., gathered by Dr. Horsfield in Java, and preserved 

 in the Schweinitzian Herbarium, is apparently the same thing. 



67. D. TRAGIC, Schwein. MSS., amphigena penetrans ; cellulis sparsis solitariis convexis nitidis; sporidiis 

 uniseriatis ellipticis hyalinis. 



On the leaves of tragia ; Surinam. 



Scattered over both surfaces of the leaves, and penetrating their substance, solitary, 

 convex, shining. Asci linear ; sporidia uniseriate, l-2500th of an inch long, broadly 

 elliptic. 



68. D. FATISCENS, Schwein. MSS., hypophjlla; cellulis in pustulis demum fatiscentlbus immersis, ostiolisque 



nigris punctatis ; sporidiis ellipticis majoribus. 

 On leaves : Surinam. 



' , '.11 i'-V ; 



Forming little pustules crowded together in dark spots ; pustules at length breaking 

 up, containing from one to three cells, and dotted with the black ostiola ; sporidia 

 elliptic, yellow brown, l-750th of an inch, or more, long. 



The genus is doubtful, for we have seen no asci, though we suspect they exist, and 

 contain only four sporidia, which are, however, very like those of a Sphceropsis. 



69. D. GRAMiNis, Fr. Summ. p. 387. SS. punctum, and parvula, Schwein. MSS. 

 On the leaves of grasses ; Surinam. 



The latter plant of Schweinitz has rather larger sporidia, and consequently broader 

 asci; but both agree essentially with the European species, in which the sporidia, 

 which Fries has not observed, are hyaline and subelliptic without any septum. 



70. D. INSERTA, n. sp., lineari-oblonga margine nigro, disco albo ostiolis minutis punctato ; sporidiis 

 subclavatis basi uniseptatis. Splixria inserta, Schwein. MSS. 



On the dead stems of some arundinaceous plant; Surinam, 



Linear-oblong, crowded, scarcely a line long, bursting through the cuticle ; border 

 pitchy black, disc linear, pale, dotted with the minute black ostiola ; asci short ; 

 sporidia about l-1200th of an inch long, but very variable, somewhat clavate, hyaline 

 with a single septum near the pointed end. 



The following species of Schweinitz we have not been able to characterise, in 

 consequence of the imperfection of the specimens. 



*D.pandani, Schwein. MSS. Probably a Phoina. On palm leaves; Surinam. 



*D. irrepens, Schwein. MSS. On a green twig; Surinam. 



This has the habit of an Astero?na, and is remarkable for producing fr large 



