Volume 4

An arrangement of British plants; according to the latest improvements of the Linnaean system. To which is prefixed, An easy introduction to the study of botany. Illustrated by copper plates / by William Withering, M.D. F.R.S. member of the Royal Academy of Sciences at Lisbon; Fellow of the Linnæan Society; honorary member of the Royal Medical Society at Edinburgh, &c.

  • William Withering
Date:
1796
Catalogue details

Licence: Public Domain Mark

Credit: An arrangement of British plants; according to the latest improvements of the Linnaean system. To which is prefixed, An easy introduction to the study of botany. Illustrated by copper plates / by William Withering, M.D. F.R.S. member of the Royal Academy of Sciences at Lisbon; Fellow of the Linnæan Society; honorary member of the Royal Medical Society at Edinburgh, &c. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

    35/452 (page 23)
    with Saucers. Hojfm.enum. 6.4. On the bark of trees, and on the bare ground covered with decayed mofs, in Yorkshire, Derbyshire, and Scotland. L. Saucers orange-coloured, border pale brown : crust dull tricolor, green, ' PLATE XXXI. f. 6. • Saucers very minute, deeply hollowed, like the cup of a Peziza. On half decayed oak bark, Mr. Griffith, who first disco- vered it, and favoured me with specimens. He has lately met with it on calcareous sand stone, the saucers considerably raised above the crust. Garreg-wen rocks, near Garri. Also on the bark of birch trees, and then the saucers are whiter. When it grows old the saucers turn black, and their opposite edges turn inwards, so that the whole afsumes an oblong figure wi th a groove extending its whole length. In this state it is the Sphieria sulcata of Bolton, the Lichen pulicaris of Hoffman, the Lichen script us (3.puhcaris of Lightfoot, and is figured in Bolt, i2±~Mich.5±.ord.%r].2-Hojfm.e?ium.Q).2.e. About the size of a flea, with a deep furrow extending from end to end. Bolt. On decayed branches of ash trees. Bolt. In Norfolk and Suffolk. Mr. Woodward ; but we are indebted to the accurate researches of Mr. Griffith, for the discovery of its curious trans- formation. This singular plant pofsefses the crust of a Lichen, the cup of a Peziza, and the capsule of a Sphxria. L. Saucers yellow, with a white border : crust whitish. tarta'reus. * \ , E.bot.i 56-Dill. i8.i$-Jacg.col/.iv.8.2, Substance tough, not gritty; acrid. Crust thickish, wide spreading, greatly wrinkled, reticulated underneath, growing on other decayed mofses. Saucers large, deeply concave, borders sometimes scolloped. Dill. It afsumes various appearances. Sometimes has a thinner and more uniform crust than usual, thickly covered with white tubercle-like excrescences, and free from shields except in the centre, where they are so thickly crowded as to be confluent. Sometimes it grows on mofs, the branches of which are surrounded with it exactly like the incrustations formed by springs abounding in a calcareous earth running over a bed of mofs. Mr. Woodw, Crust sometimes with a greenish cast. Rocks and large stones. North of England, Devonshire and Wales. Bingley, Yorkshire, Caernarvon, Highlands and Low- 1