XJSTILAGINE^ AND UREDINE^ OF CEYLON. 241 



Uredo-.sori minute, orange, up to 0'2 mm. diameter, 

 crowded, on the under surface of the leaf. Uredospores ovate, 

 echinulate, contents yellow, wall hyaline, 20-28 x 16-19^. 

 Paraphyses hyaline, clavate, thick- walled, one -septate, 

 irregular, 32-56 x 10-12^. 



Teleuto-tendrils dark brown, several millimetres in length, 

 50[i. diameter. Teleutospores lozenge -shaped, 40-58 X S'^. 



Soris uredosporiferis minutis, usque 0'2 mm. diametro, 

 aurantiacis, confertis, hypophyllis ; uredosporis ovatis, echi- 

 nulatis, episporio achroo, plasmate flava, 20-28 X 16-19[jl ; 

 paraphysibus hyalinis, clavatis, incrassatis, uniseptatis, 

 irregularibus, 32-56 x 10-12^. 



Soris teleutosporiferis elongatis, tenuissimis, circa 

 50fji, diameter, fusco-brunneis ; teleutosporis rhomboideis, 

 40-50 X 8^.. 



^cidium Pers. 



iEcidium polyalthiae n. sp. 



On Polyalthia longifolia B. & Hk. f., Peradeniya, June, 1910. 



Spots yellow, somewhat bullate, about 5 mm. diameter, 

 becoming brown with a black border when old. ^Ecidia 

 clustered, hypophyllous, 0*25 mm. diameter ; pseudoperidium 

 strongly developed, recurved and split, white ; spores orange, 

 in mass. iEcidiospores globose or ovate, 14-17 x ll-14[x, 

 minutely verrucose. Pseudoperidial cells polygonal, verru- 

 cose, 17-19 X 12-15;x. 



MacuHs primum flavis, aliquanto bullatis, circa 5 mm. 

 diametro, deinde brunneis margine nigro cinctis. .Ecidiis 

 confertis, h\'pophyllis, 0*25 mm. diametro, pseudoperidiis 

 prominentibus, recurvis, fissis, albidis ; secidiosporis globosis 

 vel ovatis 14r-17 x 11-14;;,, minute verrucosis, aurantiacis, 

 cellulis pseudoperidii poly hedricis, verrucosis, 17-19 X 12-15ul. 



^cidium erythrobasis B. & Br. 



On leaves of Hibiscus collinus Roxb., Damboul, March, 1868. 

 Not collected recently. 



iEcidia on the under side of the leaf, most along the midrib, 

 but some on a blackish patch; crowded, up to 3 mm. 

 diameter, pseudoperidium well developed, cylindric. Spores 



