scholarly journals British sea-weeds : an introduction to the study of the marine algae of Great Britain, Ireland, and the Channel Islands / by Samuel Octavus Gray.

1867 ◽  
Author(s):  
Samuel Octavus. Gray ◽  
Walter Fitch
Author(s):  
S. Wilson

Abstract A description is provided for Ramularia pratensis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Rumex acetosa, R. aquaticus, R. acetosella, R. hydrolapathum, R. longifolius, R. obtusifolius, R. thyrsiflorus. DISEASE: Leaf spot of Rumex spp. Round or oval lesions, from (1-) 2 (-3) mm diam., with a distinct purple-brown border and buff centre. GEOGRAPHICAL DISTRIBUTION: Europe: Channel Islands, Eire, Great Britain, Germany, Hungary, Italy, Sweden. TRANSMISSION: Probably wind-dispersal by air-borne spores.


Author(s):  

Abstract A new distribution map is provided for Sclerotinia narcissicola Greg. Hosts: Narcissus. Information is given on the geographical distribution in AUSTRALASIA, Australia (Victoria), Tasmania, EUROPE, Channel Islands (Jersey; Guernsey), Denmark, Germany, Great Britain and Northern Ireland, Ireland (Republic of), Netherlands,? Norway, NORTH AMERICA, Canada, United States.


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