i9io.] 



Poisonous Varieties of Fungi. 



301 



outgrowths on a gooseberry bush in Wilburton, Isle of Ely, 

 were ascribed to Nectria ribis, Neissl. 



A suspected case of Mycosphaerella citrullina on tomatoes 

 was reported from Norfolk, but the evidence was not con- 

 clusive. A well-marked case on cucumber, however, was 

 reported from Wigton, in Cumberland. As described by the 

 owner, u a plant can be strong in the morning and withered 

 down at night." The matter is being further investigated. 

 Meanwhile, the interest aroused has led to a number of cases 

 being submitted to the Board for identification, and in several 

 instances other diseases have been found. Thus in Acle, 

 Norfolk, Fusarium lycopersici, Sacc, was detected. From 

 Lingwood, Norfolk, Fusarium lycopersici on the stem, and 

 Cladosporium epiphylhim, Mart., on the leaves. In Mon- 

 mouth a bad case of Bacteriosis solanacearum, E. F. Smith, 

 was confirmed. This disease is dealt with at length at p. 297. 

 Cladosporium epiphyllum was found in potato-leaves at 

 Shrewsbury. Corky Scab was reported from Elie, Fife. 



Sphcerella tabifica in mangolds was reported from Long 

 Niddry, East Lothian. 



A very severe attack of disease on celery was reported 

 from the neighbourhood of Boston. The owner sent up for 

 examination a dozen plants all cankered at the roots, with a 

 letter stating that he had thousands more, which, though ap- 

 parently healthy and well grown, succumbed to the touch 

 when an attempt was made to take them up. The main dis- 

 ease present was Sclerotinia sclerotiorum, Mass. (Leaflet 

 127), but Celery Leaf Spot, Phyllosticta apii, Hds., dealt 

 with in the Journal for March, 1910, was also present. The 

 amount of disease reported suggests the thorough infection 

 of the soil, which would need sterilising before celery plants 

 are grown there again. 



POISONOUS VARIETIES OF FUNGI * 

 Bulbous Agaric (Amanita mappa. Fig. 18). A 

 The cap is convex at first, becoming flat, smooth, dry, 

 whitish or tinged with yellow, often with a few irregular 



* The previous numbers of this series of coloured plates and descriptions have 

 appeared in the Journal as follows :— Nos. 1-3, February, 1910 ; Nos. 4-6, 

 March, 1910; No. 7, February, 1909; Nos. 8-10, April, 1910 ; Nos. 11-13, 

 May, 1910; Nos. 14-16, June, 1910 ; No. 17, September, 190S. 



