SCLEROTINIA 265 



numerous sclerotia showing as little black warts embedded in 

 the bulb-scales, should be destroyed. Where a diseased 

 crop has grown the land will be infected, and should not be 

 planted with susceptible plants for at least three years. 

 Removing the upper two inches of soil overlying bulbs 

 remaining in the ground should be done during the winter, 

 and replaced by fresh soil containing a sprinkling of sulphur. 



Massee, G., Gard. Chron. t 16, p. 160, fig. of Botrytis and 

 ascophore stages. 



Wakker, Allgem. Verun. voor Bloembollencultur, 1883-84. 



Tulip mould. A species that has been called Sclerotinia 

 parasitica (Massee), often proves very injurious to tulips. 

 Olive-brown, velvety patches are formed on the leaves, stem, 

 and flowers. At a later stage small blackish sclerotia are 

 formed at the base of the stem and on the outer bulb-scales, 

 these are often very numerous and closely packed. 



The late Professor Marshall Ward described a Botrytis that 

 formed orange-brown or buff blotches on leaves, stem, and 

 flowers of Lilium candidum. Whether this is the same species 

 as the one noted above is not certain. No ascigerous form 

 was observed ; however, independent of this, Ward's paper is 

 a masterpiece of accurate research, and should be studied by 

 all those interested in the subject of plant pathology. 



Conidiophores grey, erect, basal joint swollen; conidia 

 obovate, on short umbellately arranged branches, almost 

 colourless, 16-21 x 10-13 /* 



Ascophore unknown. 



Marshall Ward, 'A Lily Disease,' Annals of Botany ', 2, 

 p. 319, pi. 20-24 (1889). 



Anemone sclerotinia (Sclerotinia tuberosa, Fckl.) often 

 does considerable damage to the wood anemone (Anemone 

 nemorosa\ and to cultivated kinds of anemone. I have 

 frequently met with large batches of anemone in woods com- 

 pletely overrun by this fungus, and at one time it was very 

 abundant and destructive in Kew Gardens. No Botrytis 

 condition is known to exist. The dark-brown ascophores 

 are* supported on a long slender stem, the greater portion of 

 which is buried in the ground. The cups are at first top- 

 shaped and closed, then funnel-shaped, and finally almost 

 flat and but little raised above the ground, and on account of 



