USTILAGINE^ AND UREDINE^ OF CEYLON. 245 



contents orange ; wall closely studded with rounded flattened 

 warts ; 25-30 x 17-22^/.. 



yEcidium Chionanthi B. & Br. 



On leaves of Chionanthus, Central Province, July, 1869. 

 Not collected recently. 



^cidium parsonsiae Fetch. 



On leaves of Farsonsia spiralis Wall., WeUgama, March, 

 1908 ; Dickwella, May, 1908. 



^cidium nummulare Berk. 



On Ceropegia biflora L., Fungi of Ceylon, No. 856. No 

 locality given on the type specimen. Not collected recently. 



^cidium Argyreise B. & Br. 



On Argyreia elliptica Chois., Peradeniya, January, 1868 

 (Thwaites). On Argyreia pomacea Chois., Galle, March, 1908 ; 

 Weligama. On Argyreia populifolia Chois., Urumuwela, 

 December, 1911. 



Spots yellow-green and somewhat bullate at first, then 

 brown or black and membranous, rounded or angular, up to 

 5 mm. diameter. 



iEcidia pale yellow or almost white, up to "5 mm. diameter, 

 clustered or sometimes solitary in the centre of the spot, 

 hypophyllous, pseudoperidium well developed, surrounded by 

 the upturned epidermis, which forms a short persistent tube. 

 Pseudoperidial cells polygonal, hyaline, 28-34 x 21-28[ji, ; 

 wall 4r-5^ thick, ornamented with close-set tubercles and short 

 flattened ridges. Spores subglobose or ovoid, closely verru- 

 cose, pale yellow or hyaline, wall 2fjL thick, 21-28 x 18-24[x. 



The type specimen at Peradeniya agrees with the above 

 description. It is to be noted that the type is on Argyreia 

 elliptica Chois. {fide Thwaites), which is now placed in another 

 genus as Lettsomia elliptica Wight. 



fficidium Kaernbachii P. Henn. 



On leaves of Ipomcea cymosa Roem. & Sch. , Peradeniya, April, 

 1907 ; Yatiyantota, August, 1907 ; Maddegedara, May, 1907. 



Spots at first yellow, then pale brown. 



