Search Constraints
Search Results
-
Journal article
Wolffia columbiana and W. globosa (Araceae) new to Britain.
In the course of surveys of ditches in the Pevensey Levels in October 2021, a large population of the non-native Wolffia columbiana H. Karst. was found, new to Britain. Subsequent investigation showed W. columbiana to be widespread on the Pevensey and Gwent Levels and present in other grazing marsh ditch...Lansdown, Richard ; Kitchener, Geoffrey ; Jones, Evan
Duckweed, Wolffia globosa, Wolffia columbiana, Geographical distribution, Invasive, Great Britain, Non-native, and Identification
-
Journal article
Pedunculate Club-rush Bolboschoenus laticarpus (Cyperaceae) ‒ an overlooked native or a spreading neophyte?
Bolboschoenus laticarpus Marhold, Hroudová, Zákravský & Ducháček (for which we suggest the common name Pedunculate Club-rush) is reported from the British Isles and the characters which distinguish it from B. maritimus (L.) Palla are given. The known English distribution is presented and placed in its wider geographical context. The ecology... -
-
Journal article
Lecanorales: Tephromelataceae including the genera Calvitimela, Mycoblastus, Tephromela and Violella.