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.

    28/452 (page 16)
    with Tubercles. apertures, corresponding with the number of cavities in the sub* stance. Dill. L, verrucosus. Huds. ed. i* 445. Bark of trees, rocks, and walls. P. Jan.—Dec. Vento'sus. L. Tubercles reel: crust yellow. * Dicks.h.s.-Weber. 1 -Hoffm. lich. ii. 2 7. r. Tubercles large and irregularly .shaped, at first very convex ; through age flatter, and with a whitish margin from being sur- rounded by the crust, at length putting on the appearance of mar- gined targets. The line between tubercled and saucer-like Lichens remains yet to be drawn; or rather it is more probable that future observations will entirely remove the artificial one at present formed. Mr. Woodward. Tubercles bordered by the crust, varying in'colour from liver colour to pale pink. Crust granu- lated, generally cracked, deeper or paler yellow, changing to grey or brown white. L. gelidus. Huds. 528. Dr. J. E. Smith. On rocks. Pentir rocks in Wales. Dill. And in the North of England, York- shire, and both the Lowlands and Highlands. [Above Bownefs on the banks of Winandermere, and on Casterton.Fell near Kirkby Lonsdale. Dr. J. E. Smith. Upon rocks on the sides and tops of hills in Dartmoor, Devonshire. Mr. Newberry.] P. Jan.—Dec. coccin'eu?. L. Tubercles very red, sunk in the crust: crust greenish brimstone.colour ; mealy. Dicks.h.s.-E.bot. 2 2 3-Dicks.2.1. Differs from L. ventosus in the crust being mealy, not warty, hard and smooth, and in the tubercles being immersed; ofavery bright red with mealy edges. Dicks. On the stones of Stone Henge, Wiltshire. B. (3) Crustaceous, with Saucers# coral'linus* L. Saucers white, very minute: crust forming cylindrical level-topped bundles; the extreme edge rather leaf- like. Hoffm.etium.q,. 2-Jacq.coll.il. 13.2. Similar to L. calcareus. Crust very thick, and when broken appearing composed of threads resembling coral; the ends round- ed, without tubercles. Linn. Crust thick, white, broad spread- / j 1