SIGNS AND ABBREVIATIONS USED IN THE FLORA. 



A, Annual. 



B. Biennial. 

 Fl. Flora. 

 Herb. Herbarium. 



Herb. Brit. Mus. The Her- 

 barium at tlie Natural History 

 Museum, Cromwell Koad, South 

 Kensinsfton. 



Herb. Oxf. The Oxford Her- 

 barium at the Botanic Garden, 

 Oxford, which contains the Mori- 

 son (Bobart\ Dillenius, Du Bois, 

 Sherard, and other collections. 



Herb. Cecil. Mrs. Cecil's Her- 

 barium in the Northamptonshire 

 Natural History Society's Collec- 

 tion. See also p. cxci. 



Obs. Observation. 



P. Pei'ennial. 



[ ] When a species is en- 

 closed in brackets, it means that 

 the plant is not known to occur 

 in Berkshire. 



? When this sign follows a 

 plant-record, it suggests that some 

 mistake has been made in record- 

 ing it, or may signify that the 

 plant has been extirpated. If 

 placed before the name of a 

 plant, it suggests that some mis- 

 take of identification has been 

 made. 



! When this sign is put after 

 a locality, it means that the author 

 has seen the plant growing in 

 that place. The sign is only used 

 in cases of rarity or when the 

 record appears to require con- 

 firmation. 



* One asterisk put before a name 

 signifies that it is not indigenous 

 in Berkshire. 



** Two asterisks before the 

 plant mean that the plant is only 

 of casual occurrence or is an alien 

 in the county. 



