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.

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    with Saucers. fusco-Iu'teus \ ceri'nus. quadri'color upsalien'sis. lands. [Stierperstone, Shropshire. Dill. Malvern Hills. Mr. Ballard. On Schistus in Wales. Mr.-Griffith, j P. Jan.—Dec.-}* L. Saucers dirty yellow, flat, imperfectly bordered: crust whitish, granulated. Dicks.h.s. andfasc. 6.2. Crust cohering, covering mofses and other dead plants on which it grows, so that it has the appearance of having leaves and branches. Saucers of middling size, covered with a yellow meal, which being rubbed off they appear black, whence their general dirty hue. Border visible by means of a magnifying glafs. Dicks, On Ben Lawers and other mountains of Scotland. L. Saucers pale yellow, smooth ; border and under side whitish : crust grey white. Hedw. stirp. i i. 21. B. \ b - The saucers frequently swell out so much in the middle as to afsume the form of tubercles, covering the whole surface of the crust. They change to dirty brown yellow when dry, but when macerated regain their former colour, like that of beeswax. On the bark of trees. Dicks, iii. 14. [On elm and ash, fre- quent. Mr. Griffith,] L. Saucers brown yellow, changing to black; flat: crust powdery, grey white. Dicks. 9.3. Crust powdery, thin, greyish, covered with white, mealy, globular particles. Saucers numerous, yellowish and rather con- cave when young, with a white border; black and convex when older. Mountains in Scotland, on the ground. Dicks, iii. 15. L. Saucers cream colour; border white: crust white, com- posed of awl-shaped mafses; scored, brittle. Dicks. 2.7-Hojfm.enum. 7.1 -Hoffm.lich. 21.2. f It is common in Derbyshire on limestone, and incrusts most of the stones at Urswic Mere. It is gathered for the dyers, by peasants who sell it for a penny a pound. They can collectt2o or 30 pounds a day. It gives a purple colour. i