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.

    38/452 (page 26)
    with both Tubercles and Saucers. B. (4) Crustaceous, with both Tubercles and Saucers. Pso'ra. L* Saucers blackish, border and outer side whitish: tu- bercles blue black : foliage grey white, leaves slightly many-clefU Hojfm, lich&.l ; and enum. 12.1. Crust in circular patches; 1 or 2 inches over. Fructifications numerous, in the centre. Hoffm. Stones, roofs, and on mofs. gcli'dus, L. Tubercles tile-coloured, in the centre : saucers con- cave, the same colour, in the circumference; border brown white : crust brown white. Dicks.h,s,—FI.dan, \j 0.2. Crust leafy, circular, so closely growing to the rocks as not to be separated from them; whitish, longitudinally wrinkled. Fuber- cles occupying the centre of the crust, reddish tile-coloured, con- vex, considerably elevated, with ray-like plaits, without any border. Linn. The rednefs of the saucers disappears when the plant is dry. Dicks. It forms a circular crust about the size of 4 shilling, so thin as hardly to bear separation from the rocks. The fructification generally consists of one solitary tubercle, near the centre of the plant, considerably elevated above the crust. Have only twic$ found it with saucers. Mr. Griffith. L. heclce Oeder fl. dan. viii. 8, as Oeder very rightly conjec- tured. As Linnaeus had not observed any saucers, he only men- tioned a tubercle in the centre. L. gclidus. Huds. 528, is a very different plant. Dicks.-—See L. ventosus. Rocks in the Highland mountains. [Between Llanberrisand Pen y Gorpliwysfa ; also at Gailt y ddol garn, between Pencraig and Cappel cerrig. On stones in Cwm Idwell, Caernarvonshire> particularly near Twll du. Mr. Griffith.] 4ecipfiens. L. Saucers tile-colour, tubercles black, both with white stellated borders: foliage brownish, shining, lobed, tiled, tawny ; white underneath and at the edge. Hojfmdich.^.i .3-Hedzv.stirp.il. 1 J$.~Jacq.colLi\i.§.§, Very beautiful. Saucers, the edges silvery white. Relhan. Saucers very numerous, bright brownish colour, the margins scol- loped, white, shining, the younger flat, the older irregular and deformed, in age black. Mr. Woodw. Flat, expanded, rather thick ; roundish when young, oblong when old, rather concave^ smooth, brick colour, paler when dry. Hedwig. /