256 USTILAGINE^ AND UREDINE^ OF CEYLON. 



^cidium umbilicatum B. & Br. 



On Pha^eolus Grahamianus W. & A., Damboul (Thwaites). 



.^cidia uunieroas, scattered, on either side of the leaf, up 

 to 0*4 mm. diameter, surromided by the uptm-ned epidermis, 

 or along the leaf stalks. No pscudo])eridium. Spores oval 

 or subglobose, smooth, almost hyaline, 2o-34 x 21-25iJi,. 

 (T>'i)e specimen.) 



Berkeley and Broome refer to a pseudoperidium , but there 

 is no pseudoperidium in the herbarium specimens. They also 

 state that in drying the cuticle contracts all round so as to 

 present a radiated appearance. It is evident from that that 

 each -^cidium was situated in a small gall when fresh. 



The following appear to be identical with Mcidium umbili- 

 catum : — 



(a) On Dunbaria Heynei W. & A., Kandjs May, 1910. 

 Pustules orange-red, scattered at first, then crowded, usually 

 along the veins of the leaves and on the stem, causmg minute 

 hemispherical or elongated, pulvinate, orange-red swellings, 

 up to 0*5 mm. diameter, subsequently forming deep caxdties 

 surroujided by the upturned epidermis. Spores orange-red in 

 mass, oval, 27-35 X 21-25^/., or globose 22-32[x diameter; 

 contents graimlar, orange ; epispore hyaline, smooth. 



(h) On Pha^eolus calcaratus Roxb.*, Hakgala, May, 1910. 



(c) On Crokdaria Walkeri Am., Hakgala, May, 1910. 

 Spores 22-30 x 21-30ix. 



(rf) On Glycine javanica L., Gangaruwa, -luue, 1910. 

 sEridium glycines P. Henn. ? Hennings gives the size of the 

 spore, 22-26 x 21-24ix. 



(e) On Cajanufi indicus Spr., Peradeniya, June, 1908. 

 .Kcidium cajani Petch. Sjjores 20-45 X 20-23[x. 



(/) On Atylosia Candollei W. & A., Hakgala, March, 1907, 

 Sopk'nibcr, I!I0S. .Ecidium aiylosice 'Petch. Spores 25-32 X 

 24-28;/. 



(y) On Atylosia rugosa W. & A., Hakgala, May, 1910. 

 Spores globose, 14-l8[x, or ovate, 17-24 X 14-19(j.. 



