USTILAGENE^ AND XTREDINE^ OF CEYLON. 253 



hickened areas on the stalks, each situated in the middle of 

 a minute purple patch ; circular or elongated, surrounded by 

 the purple epidermis. Pseudoperidium wanting ; mass of 

 spores reddish orange. Spores oval or globose, contents 

 orange, wall hyaline, rather thick, echinulate, with large, 

 scattered, blunt spines, 17-26 x 15-21 [jl. 



The type specimens at Kew and Peradeniya agree with the 

 above description ; their spores measure 18-24 x 16-17^. 

 This is apparently identical with Uredo Dioscorece-alatce 

 Rac. 



Uredo dioscoreae-pentaphyllae n. sp. 



Sori usually hypophyllous , on spots which are grayish on 

 the under surface, becoming purple on the upper ; up to '3 

 mm. diameter, scattered, pulvinate, rupturing irregularly, 

 ashy. Spores hyaline to pale brown, ovate or subglobose, 

 rather thick- walled, echinulate, with large, rather distant 

 spines, 22-35 x 18-21^. 



On leaves of Dioscorea pentaphylla L., Kandy, January, 

 1912. 



Maculis supra purpurascens, infra griseis ; soris uredospori- 

 feris sparsis, pulvinatis, irregulariter dehiscentibus , cinereis, 

 usque 0*3 mm. diametro ; uredosporis hyalinis vel dilute 

 brunneis, ovatis vel subglobosis, episporio crassiusculo , 

 echinulatis, spinis magnis subdistantibus , 22-35 x 18-21^.. 



Uredo Dianellae Diet. 



On Dianella ensifolia Redoute, Hakgala, May, 1910. 



Uredo ochracea Diet. 



On Commelina nudiflora L., Hakgala, May, 1910. 



Uredo paspali-serobiculati Syd. 



On Paspalum scrobiculatum L., Peradeniya, June, 1908; 

 Hakgala, September, 1908. 



Uredo setariaB-italicae Diet. 



On Setaria italica Beauv., Peradeniya, April, 1909. On 

 Setaria glauca Beauv., Hakgala, May, 1910. On Setaria 

 intermedia Roem. & Sch., Gangaruwa, July, 1910. 



