ADDITIONS TO CEYLON FUNGI (ll.). ."{19 



Heterosporium Wikstrcemiae n. sp. 



Tufts large, hypophyllous, clustered, in large blackish- 

 olivaceous patches, causing yellow or yellowish-green spots on 

 the upper surface of the leaf coinciding with the area covered 

 by the fungus on the lower. Conidiophores fasciculate, 

 geniculate, up to 200 (x high, 4 (x diameter, septate, olivaceous. 

 Conidia cylindric, equal or slightly attenuated upwards, ends 

 obtuse, straight or irregularly bent, 4-9 septate, closely 

 septate, olivaceous, verrucose, 30-58 x 4-5 (ji. 



On leaves of Wikstrosmia viridiflora Meisn., Peradeniya, 

 February, 1919 ; No. 5878 in Herb. Peradeniya. 



Helminthosporium turcicum Pass. 



On Zea Mais L., Diyanila Kaele, October, 1919. 



Helminthosporium extensum n. sp. 



Forming black patches, several inches long. Conidiophores 

 up to 1 "5 mm. high, 5 (jl diameter, regular, sometimes nodulose 

 towards the apex, sometimes forked above, Conidia clavate, 

 ends obtuse, attenuated below, outline somewhat irregular, 

 not constricted, 4 to 12 septate, pale fuliginous, 40-84 X 8-9 \x, 



On dead stems of Erythrina lithosperma Bl., Talawakele, 

 July, 1917 ; No. 5243 in Herb. Peradeniya. 



Helminthosporium ampnllaceum n. sp. 



Conidiophores scattered, or in groups of two or three, up to 

 0*5 mm. high, 12 (x diameter, equal, septate, black-brown to 

 yellow-brown, with pulvinate spore attachments towards the 

 apex. Conidia acrogenous, obclavate, 80-116 X 22-26 ^. 

 attenuated in the upper third to 5 (JL diameter, 6 to 9 septate, 

 not constricted, yellow-brown, paler towards the apex, wall 

 and septa thin, apex clothed with a translucent mass about 

 3 [x thick for a length of about 20 t^ ; base of the spore and 

 apex of the conidiophore strongly thickened and opaque, the 

 basal cell of the spore becoming hyaline in glycerine. 



On dead wood, Hakgala, April, 1917 ; No. 5344 in Herb. 

 Peradeniya. 



Macrosporium Macalpineanum Sacc. & Syd, 



On leaves of cultivated Pelargonium, Bandarawela, Novem- 

 ber, 1918 ; No. 5815 in Herb. Peradeniya. 



6(5)22 (42) 



