MYCETOZOA OF CEYLON. 359 



name, Alvisia, but in Vol. V. of the same work, Professor 

 Boulger returns to Tliwaites' spelling, having copied this from 

 Trimen's biography of H. de Alwis Seneviratne in the Journal 

 of Botany, 1894. It appears that the name Alwisia has 

 always been used at Peradeniya for the orchid, but it is quite 

 clear from the facts given above that this application is an 

 error. The generic name Alwisia has never been " effectively 

 pubhshed," except by Berkeley and Broome for the myxomy- 

 cete, Alwisia hombarda, in 1875. 



Order IV. — Reticulariace^. 



Dictydiaethalium plumbeum, Rost. 



Reticularia lurida, B. & Br., Fungi of Ceylon, No. 736. 

 " Licea cylindrica, Fr.," in B. & Br., Fungi of Ceylon, No. 779. 

 Licea cinnabarina, B. & Br., Fungi of Ceylon, Nos. 782, 1202. 

 Licea tenuissima, B. & Br., Fungi of Ceylon, No. 783. Cla- 

 throptychium Berkeley i, Mass., Mon., p. 53. 



Berkeley and Broome's type specimen of Reticularia lurida 

 in Herb. Peradeniya consists of sethalia up to 5 mm. diameter, 

 clay-coloured or blackish, fringed by a white hypothallus ; 

 spores greenish- yellow in mass ; threads stout. Licea cinna- 

 barina, B. & Br., in Herb. Peradeniya, is immature Dictydiae- 

 thalium. The Ceylon specimen of ''Licea cylindrica, Fr.," at 

 Kew is the type of Clathroptychium Berkeleyi, Massee (Mon., 

 p. 53). A recent specimen from Hakgala has threads up to 

 6 /* diameter. In Ceylon the sethaha are usually small, often 

 not exceeding 5 mm. in diameter. 



Not uncommon. Peradeniya, Hakgala. 



Reticularia lycoperdon, BuU. 



Common and typical. Hakgala, Peradeniya, &c. 



Order V. — Lycogalace^, 

 Lycogala flavofuscum, Rost. 



" Lycogala epideiulrum, Buxb." (in part), in B. & Br., Fungi 

 of Ceylon, No. 733. 



Under the name Lycogala epidendrum were placed three of 

 Thwaites' gatherings (Thw. 314. 315, 316) ; one oi these, 315, 



