Revisions of Ceylon Fungi. 



(PART VI.) ^-'"RAm- 



NEW Y^nti 

 BY '^^TaNICaL 



T. FETCH, B.A., B.Sc. 



THE present instalment of the Revisions of the Ceylon 

 Fungi includes several emendations and corrections 

 which have been made by other mycologists, more especially 

 in the Dothideales, with further notes on these where necessary. 



The duplicates of Thwaites's mycological specimens were 

 mounted, probably in his time, on herbarium sheets, and 

 constituted the sum total of the mycological herbarium at 

 Peradeniya until 1905. The collection, however, was by no 

 means complete, very many numbers being missing. In the 

 course of overhauling an accumulation of unnamed specimens 

 in the phanerogamic herbarium during recent years, a large 

 number of Thwaites's specimens of fungi were found in packets, 

 as originally placed by him, having apparently remained 

 untouched ever since. It may be possible, from these, to 

 supply further details concerning species the type material 

 of which is scanty. 



Further discoveries have shown that the statement made, 

 or impUed, in the first part of these Revisions, that named 

 specimens were returned to Thwaites by Berkeley and Broome, 

 is incorrect. Some years ago the heirs of the late W. Ferguson 

 presented to the Royal Botanic Gardens a number of letters 

 written by Thwaites to Ferguson, and in one of these Thwaites 

 states, concerning his mycological collection : " The last lot 

 goes to Berkeley by this mail, and I am putting away my o^ti 

 collections as fast as I can in good order for reference." 

 Evidently Thwaites divided his specimens and kept part of 

 each, and he followed the same course in the case of the lichens 

 sent to Leighton, &c. The specimens at Peradeniya, there- 

 fore, are not strictly co-types, as they were not examined by 

 the describers of the species. In actual fact they are in the 



|p> Annals of the Eoyal Botanic Gardena, Peradeniya, Vol, VII., Part 1., July, 1019. 



S 6(4)19 (1) 



