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British Museum (Natural History)

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ERIK ACHARIUS AND HIS INFLUENCE ON ENGLISH LICHENOLOGY 181<br />

in January 1963 (with a collection of cryptogamic books and specimens), for a sum of 250.00,<br />

and have now a permanent place in the cryptogamic herbarium.<br />

The lichen collection in BM-ACH illustrates Acharius's taxonomic arrangement used in the<br />

Lichenographia Universalis, with names from the earlier Methodus in parenthesis or scored out<br />

(Hawskworth, 1977: Fig. 3). Acharius's catalogue (Fig. 16) of the collection entitled 'Lichenes:<br />

ad Angliam pro Museo Societatis Linnaeanae Londinensis A 1807 ab E. Achario missi'<br />

comprises 894 specimens in 41 genera arranged as follows: Spiloma 1-12; Arthonia 13-27;<br />

Solorina 28-29; Gyalecta 30-33; Lecidea 34-177; Gyrophora 178-194; Calicium 195-220;<br />

Opegrapha 221-261; Graphis 262-275; Biatora 276; Verrucaria 277-322; Endocarpon 323-335;<br />

Trypethelium 336; Porina 337-340; Thelotrema 341-343; Pyrenula 344-347; Variolaria 348<br />

-359; Sagedia 360-363; Urceolaria 364-384; Lecanora 385-551; Roccella 552-553; Evernia<br />

Fig. 18 Specimen of William Borrer's observations on the Acharius lichens. Herbarium, Lichen Section,<br />

<strong>British</strong> <strong>Museum</strong> (<strong>Natural</strong> <strong>History</strong>).

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