CEYLON FUNGI. 
243 
acutis ; sporis globosis, vel ovoideis, flavis, 22-24 |jl diam., vel 
22-26 X 16-21 [K ; episporio, 4-6 \x crass., reticulato, lineis 
latis, plerumque interruptis, sæpe in verrucis fractis. 
Oidium tingitaninum Carter. 
On Citrus spp. Common. 
Oidium Tuckeri Berk. 
On Vitis vinifera L., Hakgala, September, 1908. 
Oidium tabaci Thuem. 
On cultivated tobacco. Common. 
Oidium quercinum Thuem. 
On Quei'cus pedunculata Ehrh., Hakgala, May, 1912. 
The following Oidia have been collected, and are recorded 
here in view of the prevalent opinion that Oidium is rare in 
the Tropics : — 
On Sida mysorensis W. & A., Peradeniya, December, 1913. 
On Tribulus terrestris L., Jaffna, November, 1916. 
On Oxalis corniculata L., Peradeniya, May, 1912. 
On Tro^æolum majus L., Hakgala, September, 1908. 
On cultivated Balsam, Mirigama, September, 1907, &c. 
On Limonia alata W. & A., Peradeniya, March, 1917. 
On ÆgU Marmelos Corr., Colombo, February, 1917. 
On Pisum sativum L. [Erysiphe polygoni (DC.)], Haputale, 
August, 1913. 
On Tephrosia purpurea Pers., Peradeniya, April, 1915, &c. 
On Tephrosia villosa Pers., Teldeniya, August, 1907, &c. 
On Sesbania grandiflora Pers., Peradeniya, March, 1917. 
On Clitoria ternatea L., Peradeniya, September, 1907. 
On Tamarindus indica L., Teldeniya, August, 1907. 
On Phaseolus lunatus L., Peradeniya, January, 1907. 
On Cassia occidentalis L., Teldeniya, August, 1907. 
On Cassia Tora L., Teldeniya, August, 1907. 
On Curcurbita sp., Teldeniya, August, 1907. 
On Sonchus arvensis L., Peradeniya, January, 1912, &c. 
On Solanum melongena L., Sudu-ganga, June, 1916. 
On Capsicum annuum L., Peradeniya, January, 1907, &c. 
6(5)17 (33) 
