90 Rev. T. Salwey : List of the scarce Lichens found IX. — A List of the scarcer amongst the Lichens which are found in the neighbourhood of Oswestry and Ludlow, with occasional observations upon some of them. By the Rev. T. Salv^^ey*. As a study of tlie Lichens is confessedly one of the greatest difficulties the botanist has to contend with, and as Sowerby's ' English Botany ' and the ' Lichenographia Britannica ' (so far as this last extends), the principal works in our language which give any detailed descrijDtion of them, are in the hands of few, I have thought that observations upon some of the least common of such Lichens as are found in this part of England may be acceptable to those who are entering upon the study of them. Having already made some remarks upon the Welsh Lichens in the 'Annals and Magazine of Nat. History,^ vol. xiii. pp. 25, 260, I have enumerated in the present list such only as I have met with out of the Principality, and these more particularly such as are found in the neighbourhood of Oswestry and Ludlow, so that the following may be regarded almost as a list amongst the scarcer of the Lichens of Shropshhe, the great majoi'ity of the habitats being such as are confined to this county. The de-scriptions of the several species in the ' English Flora ' are much too concise to enable the student, without occasional help from some experienced botanist, to make them out. Dr. Taylor in the ' Flora Hibcrnica ' has given much more ample details of such as he describes, and has added several new species, some of which are still to be discovered on this side of the Channel, but his work necessarily embraces such only as are found in Ireland. It is much to be regretted that we have as yet no monograph of the Lichens, and till some one competent to undertake so arduous a task shall have supplied this desideratum, any occasional obser-vations upon them may perhaps meet with acceptance at the hands of those who are desirous of studying this branch of botany. It is only as a help to such, and not under the presumption that I am capable of throwing much light upon the subject, that I have ventm-ed to send to the Botanical Society of Edinbm-gh the following list of Lichens, with such observations upon some of them as a long acquaintance "^dth, rather than an accurate knowledge of them, has led me to form. If my observations should be the means of removing any difficulties in the way of a single inquirer into this branch of botany, my end will be fully answered. Oswestry, March 28, 1845. BcEomyces anomalus. Craigforda and Pentregaer in the parish of Oswestry. * Read before the Botanical Society of Edinburgh, June 12, 1845.
IX.—A list of the scarcer amongst the lichens which are found in the neighbourhood of Oswestry and Ludlow, with occasional observations upon some of them
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