FUNGOID PESTS OF CULTIVATED PLANTS. 65 



somewhat branched in the upper portion, the ends of the branches having 

 pear-shaped swellings, each bearing about a dozen conidia, each conidium 

 attached to the swollen end by a minute peg-like stalk The conidia are 

 egg-shaped and colourless (20 x 14 p). 



Beyond Great Britain the area of distribution is not ascertained. 



No remedies have been suggested, or tried, beyond destroying infected 

 plants and bulbs, so as to prevent the formation of sclerotia, which are 

 the resting stage of the mycelium, and its consequent diffusion in the 

 succeeding year. 



Sacc. Syll.iv. 752 ; Grevillea, vol.x. 1881, p. 51 ; Gard. Chron. Sept. 10, 

 1881, fig. 66 ; Aug. 18, 1888, fig. 21 ; Marshall Ward, Ann. Bot. Nov. 



FIG. 8. BOTRYTIS SPECIES. 1. Flower-bud of Lily attacked by the fungus. Nat. 

 size. 2. Fruiting branch of the fungus : x 50. 3. Head of fruiting branch : x 500. 



1888, p. 319 ; Diseases of Plants, p. 117 ; Mass. PL Dis. p. 161 ; Journ. 

 E.H.S. vol. xxvi. 1901, p. 372, fig. 190 ; ibid. vol. xxvi. 1901, p. cxxix. 



JAPAN LILY DISEASE. 

 Rhizopus necans (Mass.), PI. VI. fig. 82. 



This is a disease affecting the bulbs of Lilium speciosum and Lilium 

 auratum raised in Japan for exportation to Europe, and hitherto only 

 affects imported bulbs. 



At first a slight discoloration at the base of the bulb is discovered 

 when the bulb is cut open. This extends until the entire bulb becomes 

 discoloured, and afterwards soft and rotten. Diseased bulbs which have 

 become rotten show a white weft of mycelium, from which numerous 

 clusters of the fungus, resembling miniature pins with black heads, stand 

 erect. These are the conidial or summer fruit. The globose conidia 



