BRITISH LICHENS
BRITISH LICHENS
BRITISH LICHENS
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268 GRAPIDDINEAll OPEGRAPHA<br />
The specimen in the Crombie herbarium was collected at Holmwood.<br />
Surrey.<br />
Hub. On old oaks.-Dislr. Rather rare in the Channel Islands and<br />
England.-B. ]rIo Brockenhurst, New Forest, Hants; near Glynde.<br />
Danny, Hurstpierpoint, Parham Park, Sussex; Holmwood and<br />
Shere, Surrey; Thorndon Hall, Gosfield Hall, and Epping Forest,<br />
Hamault Forest, Essex; Penshurst, Kent; Windsor Forest, Berks;<br />
Ickworth Park and Dennington Park, Suffolk; Sherwood Forest,<br />
Nottinghamshlre; Purton, Wiltshire; Packington Park, Warwickshire;<br />
Donnington Park, Leicestershlro; Haughmolld Hill, Shropshire;<br />
Hoggarts Wood, Ingleby, Cleveland, Yorkshire.<br />
24. O. prosodea Ach. Meth. 22 (1803}.-Thallus effuse,<br />
thickish, membranaceous, dull-pallid-brownish. Apothecia<br />
prominent, stout, subcylindrical, somewhat shining, straIght;<br />
disc narrow; margins elevated, connivent; paraphyses distinct;<br />
spores elongate-fusiform, colourless, up to 17 -septate, about<br />
50-60 (J. or more long, 6 (J. thick; spermogones rod-shaped 5-6 (J.<br />
long, ·7 (J. thick.-NyI. in Prodr. FI. N. Gran. 568; Cromb. Lich.<br />
Brit. 99; Leight. Lich. FI. 387; ed. 3, 410.<br />
Exsicc. Larb. Cresar. n. 92.<br />
Hub. On bark of trees.-Distr. Rare in Chann('l Islands and S.<br />
England.-B. M. Ann Port and St. Peter's Valley, Jersey; near<br />
Penzance, Cornwall; Newton Bushell, Devon; New Forest, Hants;<br />
Shere, Surroy.<br />
25. O. viridis Pers. ex Ach. Meth. 22 (1803}.-Thallus paleyellowish<br />
or brownish, thin, somewhat vaguely limited. Apothecia<br />
innate or sessile, oblong or linear, rounded, straight or<br />
curved mostly simple; disc narrow, uniform, the margins rounded,<br />
inflexed; spores elongate-acicular or narrowly fusiform, up to<br />
15-septate, colourless, 40-80 (J. long, 6-7 f1. thick; spermogones<br />
with arcuate spermatia 14-16 (J. long, 5 (J. thick.-Carroll in<br />
Journ. Bot. vi. 100 (1868); Cromb. Lich. Brit. 100; Leight.<br />
Lich. Fl. 387; cd. 3, 410. O. siderella Leight. in Ann. Mag. Nat.<br />
Rist. ser. 2, xiii. 209, t. 6, f. 14 (1854) (non Ach.1). O. rubella<br />
Mudd Man. 233"t. 4, f. 90 (1861) (non Pers.1).<br />
Exsicc. Mudd n. 213 (as O. rubella).<br />
Distinguished from the preceding by the thinner thallus and tho<br />
smaller and more slender apothecia.<br />
Hab. On the bark of trees.-Dtstr. Rare in the Channel Islands,<br />
England, Wales and Ireland.-B. M. Near St. Martin's Church,<br />
Jersey; near Penzance, Cornwall; Ullacombe, near Bovey Tracey,<br />
Devon; near Stoney Cross, New Forest, Hants; near Glynde, Sussex;<br />
Shere, Surrey; Epping Forest, Essex; Dolgelly, Merioneth; Trefriw,<br />
Carnarvon; Hoggart's Wood, Ingle by, Cleveland, Yorkshire; Castle<br />
Bernard Park, Cork; Tore Mt. and Dmlsh, Killarney.<br />
Form taxicola Cromb. Lich. Brit. 100 (1870}.-Differs from<br />
the species in the slightly pulverulcnt thallus and in the more