Flora Edinensis: or, a description of plants growing near Edinburgh, arranged according to the Linnean system, with a concise introduction to the natural orders of the Class Cryptogamia, and illustrative plates / By Robert Kaye Greville.

  • Robert Kaye Greville
Date:
1824
Catalogue details

Licence: Public Domain Mark

Credit: Flora Edinensis: or, a description of plants growing near Edinburgh, arranged according to the Linnean system, with a concise introduction to the natural orders of the Class Cryptogamia, and illustrative plates / By Robert Kaye Greville. Source: Wellcome Collection.

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    of very minute lobes, mingled with pulverulent excrescences; not unfre- quently the center cracks away, and leaves nothing but the lbliaceous circumference. Fructification often plentiful, and distorted from mutual pressure. 12. P. pitlvernlcnta, stellate, glaucous green, pruinose, dark beneath, and tomentoso-hispid; lobes linear, multifid, ])lane at the circumference and adpressed, waved, retuse at the extre- mity ; fructification dark and glaucous, with a flexuose and en- tire border. Ack. Syn. Lich. p. 214. Smith, E. B. t. 2063. Hook. FI. Scot. 2. p. 55. Hab. On trunks of trees, common. Braid Hermitage. Avenue leading to Blackford House. Swanston wood, Ac. Plant membranaceous, cracking irregularly in the centre when old. Lobes radiating, and continued almost from the centre, linear, multifid, prui- nose, closely adpressed ; the fibrillae beneath straight, black, sharp and his- pid. When this lichen is moistened, the bloom disappears, but returns on drying. 13. P. stellaris, stellate, at length rugoso-plicate, greenish ash- colour, white beneath with greyish fibres ; lobes sublinear, some- what convex, cut, multifid ; fructification dark and glaucous, with an entire, and at length flexuose, crenate border. Acli. Syn. Lich. p. 216. Smith, E. B. t. 1697. Hook. FI. Scot. 2. p. 55. Hab. Trunks and branches of trees, common. Swanston wood, and elsewhere about Edinburgh, abundant. An elegant lichen, submembranaceous, very cinereous. Fructification having a neat appearance, from the contrast of the dark disk with the pale bor- der. The student must not confound this with Jiurrcra tenella, which is always distinguished by the segments being ciliated. 14. P. ceESta, stellate, greyish white and glaucous, soredife- rous, ash-coloured beneath, with black fibres ; segments linear, cut, multifid, convex, but plane at the extremities; fructifica- tion subconcave, black, with a subinflexcd border. Acli. Syn. Lich. p. 216. Smith, E. B. t. 1052. Hab. Bocks, stones, and trunks of trees. King’s Park, Maughan. Frond subcrustaeeous, membranaceous, orbicular; segments pinnatifid, sub- imbricated, plane and inciso-crenate at the extremities. Soredia hemi- spherical, white or glaucous, scattered over the whole surface. The fruc- tification is mre. 15. P. cyclosclis, orbicular, greenish grey, fibrous and black beneath ; laciniae imbricated, nearly plane, multifid, eroso-ere- nate, somewhat ciliate, the margin sometimes raised ; fructifica- tion very dark, the border raised, entire. Ach. Syn. Lich. p. 216. Lichen cyclosclis, Smith, E. B. t. 1942. Hab. Trees, pales, walls. Top of the wall near Colinton, on the Edin- burgh road. Frond growing very close to the stone or bark, about an inch broad, of a
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