NEPnuoMiuM.] I'Tcr/nriEREi. 2>5 



4. N. subtomentellura Xyl. e.r Cromb. Journ. Bot. 1 S74, ]>. 1 47. — 

 Thalhi.s suljcorianeoiis, somewhat expanded, rotimduto-lobed, opa(]ue, 

 rugulose, sinuato-lobed at the margins, dark lurid-brown ; beneath 

 riifj;iilose, obsoletely tomentellosc, brown (medulla white, K — ). 

 Apothecia moderate, dark-red, the receptacle coriacco-rup:ulose or 

 thinly areohito-graTnilose ; spores 0,020-24 mm. lonj?, 0,000-7 mm. 

 thick. — Xephro))mun JcevigaUnn var. suhtomenf.ejhim Nyl. Not. Sallsk. 

 F. et Fl. Fenn. Forh. n. s. v. (1800) p. 116 : Leight. Lich. Fl. ed. 3, 

 p. dQ.—Brit. Exs. : Cromb. n. 149. 



Distinguished by the rugulose thallus and receptacle, and by the obsolete 

 tomeutum of the under surface, which with the size of the spennatia show 

 that it is a good species. The apothecia are numerous, occasionally rather 

 large and crowded. The spermogones, Avhich are more frequent than in 

 auv of the other British species, have the spermatia (ex Xvl. in lift.) 

 0,()02rj-0,0030 mm. long, 0,0010 mm. thick. 



Hah. On the trunks of old ash trees in mountainous regions. — Distr. 

 Local and scarce in N. Wales, and among the 8. Grampians, Scotland. — 

 B. M. : Rhewgreidden, ^Merionethshire. Head of Loch Awe, Argyleshire ; 

 Glen Lochay, Killin, Perthshire. 



5. N. lusitanicum Xyl. Flora, 1870, p. 38.- — Thallus suborbicular, 

 rotundato-lobed, smootb and somewhat shining, crejiate, crisp and 

 undulate at the margins, bvid-chestnut or chestniit-browTi ; beneath 

 glabrous, somewhat rugulose, pale (medulla yellow, K-(- purplish). 

 Apothecia small or moderate, reddish -brown, the receptacle crenato- 

 laciniate, incurved, the back minutely depresso-areolate ; spores 

 0,020-24 mm. long, O.OOG-7 mm. thick.— Leight. Ann. Mag. Xat. 

 Hist. 1870, p. 41; Lich. Fl. p. 106, ed. 3, j). 100.— Xephroimum 

 Icpvigatnm f. lusitanicion Cromb. Lich. Brit. p. 28. Nephroma lusi- 

 tanicum Schser. Enum. (1850) p. 323. Lichen resvpinatus Eng. Bet. 

 t. 305 ; var. 2, With. Arr. ed. 3, iv. p. 11.— Brit. Ers. : Mudd. n. 57; 

 Dicks. Hort. Sic. n. 23 ; Leight. n. 107 ; Larb. Lich. Hb. u. 288. 



Similar to X. IfPvif/atum, except in the colour of the medulla and the 

 chemical reaction. These differences, however, are of sufficient importance 

 to warrant our regarding it with fichaerer as a distinct species. With us 

 it is much more common than X. laviyatum, and is generally fertile. 



Hah. On the trunks of old trees, and on mossy rocks and boulders in 

 maritime and upland wooded districts. — Distr. General and common in 

 S., W.,and X. England, X. Wales, in S. and Central Scotland, and in X'. 

 aud S.W. Ireland. — B. M. : Brechou and Guernsey, Channel Islands. 

 Lydd, Kent: Lustleigh Cleeve and near Totnes, S. Devon; near Res- 

 pring, Launceston, Liskeard, Penzince, and St. Austell, Cornwall ; Mal- 

 vern, Worcestershire ; Rentrogaer near Oswestry, Shropshire ; Barmouth 

 and .\berdovey, Merionethshire : Bettws-y-Coed, Carnarvon ; Island of 

 Anglesea ; Cleveland, Yorkshire : Eglestone, Durham ; Mardale, West- 

 morelaud : Keswick and Bassenthwaite Lake, Cumberland. Xew Gallo- 

 way. Kirkcudbrightshire: near Motfat, Dumfriesshire: Dumbarton 

 Castle, Dumbartonshire : Barcaldine, Inverary. and head of Loch Awe, 

 Argyleshire: (41eu Lochay and Pass of Leny. Perthshire: Reeky Linn, 

 Forfarshire ; Craig Coinnoch, Braemar, Aberdeenshire : Cawdor ^'oods, 

 Xairn ; Loch Linuhe. Fort George, and Falls of Foyers, Inverness— hire : 



