ITATYSMA.] CKTItAKlKl. 22o 



Our few antlicntip s]K'ciimMis an' tyiiieal, tlmii^.'-li sinalliM- than in 

 rountiies wlicre it is nioro plentiful, 'llie apothecia do not occur in 

 these, and the sperniojrones are rarely seen. They are minute, marginal, 

 with spermatia 0.007 mm. lon^-, 0,001 mm. thick. 



llab. On the trunks of ajred ])ine,s in mountainous woods. — Distr. Ex- 

 tremely local and rare in the N. Grampian.s. Scotland ; verv doubtfullv in 

 N. Eii-iland.— 1{. .M. : I" Near Hifjh Force Inn, Teesdale, Durham (frt.). 

 Clova, Forfarshire ; Ivothiemurchiis Woods, Inverness-shire. 



10. P. pinastri Xyl. Flora, 1869, p. 442.— Thallus depressed, 

 roundly lobed, greenish-yellow ; lacinise plane, somewhat broad, 

 sometimes imbricate, the margins intensely citrino-sorediate ; medulla 

 deep citrine (K~, CaCl~). Apothecia as in the preceding species, 



but very rare. — PI at ^sma juniper inum, subsp. pinastri Cromb. Journ. 

 Eot. 1872, p. 21^4. Phttifsnia juniperlnnm var. i>inastri Cromb. 

 Lich. Brit. p. 27 ; Lcight. Lich. JFl. p. 102, ed. 3, p. 97. Cetraria 

 p'nvistri Gray, Nat. Arr. i. p. 482. Cetraria 'inniperina fi. pinastri 

 Hook. Fl. Scot. ii. p. 57 i^ro parte : Sm. Eng. Fl. v. p. 220 ; Mudd, 

 Man. p. 79. Lichen j^t'tastri Scop. Fl. Carn. ii. (1772) p. 382 ; 

 Dicks. Crypt, fasc. iii. p. 18; With. Arr. ed. 3, iv. p. 51 ; Eng. Bot. 

 t. 2111. 



This holds the same relation to P.jumpcrinumy of which it has u.sually 

 been considered a variety, as P. ulophi/ll^on does to P. s<rpincoh(, except 

 with respect to size. It is distinguished from the preceding by being 

 smaller, with broader and moie appressed lobes, and by the bright citrine- 

 coloured marginal soredia. The colour of the medulla in both species, as 

 observed by Nylauder, /. c, depends upon the presence of vulpuline. 

 Neither apothecia nor S})ermogones are seen in our British specimens. 



Hah. On the trunks of old firs and on larch pales in upland wooded 

 districts. — P>i-<fr. Very local and rare in E. and N. England, and in the 

 Grampians, Scotland. — B. M. : Framlingham, near Norwich, Norfolk ; 

 llolwick, Yorkshire ; Teesdale, Durham; near Kendal, Westmoreland. 

 Ben Lawers, Perthshire ; ^^'oods of Rothiemurchus, Invei'uess-shire. 



h. Thallus snbascending, somewhat loosely affixed, discolorous ; 

 lacinice dilated. 



11. P. glaucum Nyl. Act. See. Linn. Bord. ser. 3, i. (1857) p. 295. 

 ■ — Thallus foliaceo-expanded, ascendiiig, smooth or lacunoso-rugulose, 

 laciniate or laciniato-lobed, glaucous-grey or pallescetit, beneath 

 brownish or blackish, paler at the circumference ; lacinife more or 

 less ascending, sinuate, crenate, or lacerate, often sorediate at the 

 margins (K_'^'' owim^ CaCl~). Apothecia marginal, adnate, 



moderate or somewhat large, reddish-brown, the margin thin, evan- 

 escent ; spores ellipsoid, 0,OOG-0 mm. long, 0,035-50 mm. thick. — 

 Nyl. Syn. i. p. 314, t. 8. f 35 ; Cromb. Lich. Brit. p. 27 ; Leight. 

 Lich. Fl. p. 102, ed. 3, p. 97. — Cetraria r/Iaitca Gray, Nat. Arr. i. 

 p. 433 : Hook. Fl. Scot. ii. p. 57 : Sm. Eng. Fl. v. p.'220 ; Tavl. in 

 Mack. Fl. Hib. ii. p. 154 ; Mudd, Man. p. 79, t. 1. f. 20. Lichen 

 (/laucHS Linn. Sp. PI. (1753) p. 1148; Huds. Fl. Angl. p. 453; 

 Lightf. Fl. Scot. ii. p. 838 ; With. Arr. ed. 3, iv. p. 53 ; Eng. Bot. 



Q 



