IAKKIN : FUNGI PARASITIC 



Neither stroma nor to any extent has mycelium been 

 noticed covering the external surface of the scale. Zimmer- 

 manu* speaks of the stroma of N, coccidophthora as being 

 shortly stalked, using the word here evidently as equi- 

 valent to sporodochium. 



The stalk of the sporodochium varies considerably in 

 length ; the extremes met with were 1*2 and 0*15 mm. 

 V. iv commonly the length is 0*2 to 0*3 mm. with a breadth 

 of 0*15 to 0'3 mm. Zinirnerinann* gives the length of the 

 stalk from 0*3 to 0*4 mm. 



The head is more constant in its proportions, about 

 0'4-0'5 mm. long by 025-04 mm. broad, agreeing closely 

 with Zimmermann's figures for length, viz., 04-045 mm. 

 He says the head is enveloped in a sheath of sterile hyphre 

 connected together sideways by ladder-like cross-pieces. In 

 the Ceylon specimens this sheath is also present. It can 

 easily be overlooked, as it adheres closely to the conidial 

 mass and is not readily distinguished from the conidio- 

 phores themselves. It consists of parallel septate hyphas, 

 stouter than those bearing the conidia (3/x compared with 

 2 f i). At long intervals hyphae adjacent to one another are 

 connected by narrow and extremely short cross-pieces 

 (1*3 x l'4f*). A distance of 70^ may occur between two 

 successive connections (tig. 13). 



The conidiophores are filiform ; at any rate they do not 

 bifurcate in the upper part (tig. 12). They may branch a 

 little near the base. 



The conidia are Long, multiseptate, and slightly curved 

 with somewhat falcate ends ( f i i-r - 11 )• The septa vary iri 

 number ; extremes met with wnv ."> and L0, 9 is about the 

 average, though 7 is verj common. This variation maj be 

 partially accounted forthrough differences in age. Average 

 length 90ft. Some measured as much as L04/*, and 

 others as little as •',*,,. I'.readth 6-'.»/<. Zimmermann's 

 numbers for septa are 7 9, and \'<>r measurements 110 120/j 

 6/i. Thus the conidia of the Java form appear to 



Zimmernuuin, loo ait. 



