172 FLOEA ANTARCTICA. [Auckland and 



5. Sphjeria (foliicolae) depressa, Berk; gregaria, minor, atra, peritheciis tectis subglobosis lsevibus 

 collo destitutis siccitate depressis, sporidiis lanceolatis. (Tab. LXVIII. Fig. V.) 



Hab. Campbell's Island ; on the dead leaves of Luzula crinita. 



Gregaria, epidermide atro-punctato omnino tecta. Perithecia minora, subglobosa, collo destituta, siccitate 

 depressa. Asci lineares, paraphysibus tenuioribus imnrixti. Sporidia biseriata, lanceolata, endochromio bipartito 

 sed non septato. 



The only species with which the present can be compared are S. duplex and S. Scirpicola ; from both these 

 it will be found to differ by the external characters given above, and, from the latter in particular, by the simple 

 pellucid and neither triseptate nor yellowish sporidia. 



Plate LXVIII. Fig. V. — 1, leaf and fungus of the natural size; 2, portion of the same, magnified; 3, asci 

 and paraphyses ; 4, sporidia, shewing the endochrome collected at either extremity ; magnified. 



6. DOTHIDEA* Fries. 



1. Dothidea hemispherica, Berk ; hypogena, solitaria, erumpens, macula subeffusa epiphylla nigra, stro- 

 mate hemispherico carbonaceo, cellulis ellipticis obtusiusculis, ascis breviusculis, sporidiis nniseptatis oblongis. 

 (Tab. LXVLT. Fig. II.) 



Hab. Lord Auckland's group ; on the leaves of Veronica odora. 



* I take the present opportunity of describing two new species of Dothidea, contained in the Herbarium of Sir 

 W. J. Hooker. 



1. Dothidea circumscripta, Berk. ; innata, gregaria, maculis suborbicularibus irregularibus depressis nigris 

 nitidis circumscriptis, cellulis paucis magnis depresso-globosis, collo brevi, ostiolo papillseformi, ascis clavatis, sporidiis 

 oblongo-lanceolatis. (Tab. LXVIII. Fig. VI.) 



Hab. Andes of Columbia {Jameson). Chacapoyas, Peru {Mathews) ; on various species of Vaccinium 



Hypophylla, rarissime epiphylla, innata. Macula % liu. lata?, suborbiculares v. confluentes, irregulares, depressa?, 

 nigra?, nitidae, quandoque leviter undulata?, minutissime granulates, ostiolis paucis, papilkeformibus notata?, bnea nigra 

 plus minusve evidenter circumscripta?, demum omnino fatiscentes, et scutellam epidennide rnarginatam exhibentes. 

 Cellules fructifera? paucissimse, magna?, globosa?, depressa?, collo brevi, ostiolo papilkeformi. Asci clavati. Sporidia 

 octona, oblonga, hinc acuminata, 



A very pretty species, remarkable for the small number of fructifying cells and the dark line enclosing the stroma, 

 which is especially evident when the latter is abortive ; beyond this line there is sometimes a coloured ring. The 

 sporidia are almost of the same shape with those figured by Corda, in Rhytisma Fugeniacearum ; when young they 

 are filled with distinct granules which become less evident as they are more developed. In age the stroma com- 

 pletely decays and falls out, leaving a scutellum surrounded by the cuticle. This follows from the dark line indi- 

 cating a harder substance than that of the stroma, which is not always externally visible, but will be found on making 

 a vertical section. 



Plate LXVIII. Fig. VI. — 1, a branch of Vaccinium and fungus of the natural size ; 2, a section, slightly mag- 

 nified; 3, asci, slightly magnified; 4, sporidia, highly magnified. 



2. Dothidea bullata, Berk. ; epiphylla, bullata, suborbicularis, nigra, superficialis, crassiuscula, rugosa, granu- 

 lata, intus nigra, cellulis ellipticis, ostiolo papilla?formi, ascis oblongis, sporidiis oblongis nniseptatis. 



Hab. Peru ; on the leaves of a resinous shrub. {Matheics.) 



Epiphylla, submarginalis, superficialis. Macula \ imc. lata?, suborbiculares, crassiuscula?, depresso-bullatse, 



