CEYLON FUNGI. 15 



233.— Dothidea microcenta B. & Br. 



For this species Berkeley and Broome cited Thwaites 423 in 

 part, " on leaves apparently of Artocarpus." The co-type in 

 Herb. Peradeniya is labelled ' ' on Ficus parasitica' ' by Thwaites. 



Cooke (Grevillea, XIII., p. 67) regarded this species as 

 identical with D. rhytismoides, and, probably for that reason, 

 Dothidea microcenta and D. rhytismoides in Herb. Kew are 

 both in the cover of the latter. Dothidea microcenta was 

 Thwaites 423, and D. rhytismoides 423, 521, and 499. The 

 duplicates of 423 are labelled " on leaves of Ficus spp." 521 

 is labelled Hugonia Mystax ; it has been referred to above. 

 499, on leaves of Urostigma tomentosum (= Fi&us tomentosa), 

 was regarded by Berkeley and Broome as a variety of Dothidea 

 aspidea, but while the mounted specimens are in the cover of 

 D. aspidea, the packet of duplicates is included under D. 

 rhytismoides. 



Theissen and Sydow state (Ann. Myc, XIII., p. 384) that 

 the type of Dothidea microcenta (Thwaites 423) contains two 

 species, one hypophyllous and the other epiphyllous, on 

 separate leaves and probably different gatherings. They 

 take the hypophyllous species as the tjrpe, which they name 

 Catacauma microcentum (B. & Br.) Theiss. & Syd., and state 

 that the epiphyllous species is hardly different from D. aspidea 

 Berk. But this epiphyllous form was referred to D. aspidea 

 by Berkeley and Broome ; evidently this is another instance 

 of their somewhat frequent omission to separate the specimens 

 of their different species. In both specie-i the host plant of 

 Thwaites 423 is Ficus parasitica. 



234. — Dothidea aspidea Berk. 



This was originally described by Berkeley in Decades of 

 Fungi, No. 497, as Dothidea repens (Corda) var. aspidia, 

 " Pustulis latiusculis sparsis piceis ascis elongatis sursum 

 attenuatis ; sporidiis hyalinis subellipticis. On leaves of 

 Ficus repens, Ceylon." In Fungi of Ceylon, No. 1157, 

 Berkeley and Broome described Dothidea aspidea B. & Br. 

 " Elevata, nitida, late conica, apice plerumque plana, basi 

 margine fusco-luteo cincta ; sjwridiis ellipticis ; spermogoniis 

 acicularibus (No. 423 in part, 499). On Ficus re])ens, &c., 



