294 Rev. W. A. Leighton on the British Umbiiicariic. 



characteristic, at least in my copy ; but specimen ! in herb. Boner re- 

 ceived from Schajrer good). 

 Umbilicaria polymorpha, ct. cylindrical c. nudiitscula, Scha;r. Enum. 2(). 



Highlands of Scotland, Turner and Borrer. Summit of Gly- 

 der ! Falcon Glints ! Westmoreland Mountains ! Mr, Bonder. 



d. exasperata, Turn. & Borr. Thallus polyphyllous, ragged, 

 rough on the upper side. 

 Gyrophora proboscidea, d. exasperata, Tm*n. & Borr. Lich. Brit. 219. 



County of Durham, Mr. Robson. 



llemarkably curled and undulated, and divided into numerous 

 small irregular lacinise : upper surface remarkably rough. 



I have seen no specimens, but this and denudata appear to be 

 connecting links with 0. deusta. 



Plate X. fig. 16. Section of thallus and apotheciura. Fig. 17. Ascus. 

 Fig. 18. Sporidia. 



2. Umbilicaria pustulata, Hoffm. Thallus thin, torn, and 

 lobed, papillose and naked on both sides ; upper side pale olive- 

 green, blistered and sprinkled with fibrous glomeruli ; under side 

 brownish, deeply pitted : sporidia in asci, one or two, very large, 

 oblong, pale, wrinkled or reticulated on the surface, 3-septate ? 



Lichen crustcB modo saxis adnascens, verrucosus, cinereus, et veluti deustus, 



Tourn. Instit. 549. (1719) (fide Turn. & Borr.); Vaill. Paris. 116. 



t. 20. f. 9. 

 Lichen pulmonarius saxatilis, inferne reticulatus, et lacunatus, superne 



cinereus, ac verrucosus j receptaculis jlormn et seminibus nigricantibtts, 



et veluti deustus, Micheli, 89. t. 47 (1729). 

 Lichenoides pustulatum cinereum et veluti atnbustum, Dill. 226. t. 30. f. 131 



A. & B (1741) ; Fl. Dan. t. 597. f. 2 (fide Turn. & Borr.). 

 Lichen pustulatus, Linn. Sp. PI. 2nd ed. 1617 (1763); Fl. Lapp. 359; 



Lightf. Fl. Scot. 2. 858; Robson, British Fl. 300; Huds. Fl. Angl. 



549; Pottich, Palat. 3. 250; Web. Spicil. 261; Leers, Fl. Herborn. 



265 ; Humb. Fl. Frib. 28 ; Retz. Scand. 287 ; With. Arr. 4. 64 : Ach. 



Prodr. 146; Sm. E. Bot. t. 1283; Westr. 161, cum icone (fide Turn. 



& Borr.). 

 Umbilicaria pustulata, HofFm. PI. Lich. 2. 13. t. 28. f. 1, 2, & t. 29. f. 4 



(1791); Schrad. Spicil. 102; DC. Fl. Fran9. 3rd ed. 3. 411 ; Hook. 



Fl. Scot. pt. 2. 42 ; Brit. Fl. 2. 219 ; Stenh. in Sched. Grit. fasc. 5 & 6. 



no. 125; Fries, L. Reform. 350; S. V. S. 117; Chev. Fl. Paris. 1. 



642. 

 pustulata at,, Tuckerm. Syn. 70; Bohler, Lich. Brit. 125!; Scha?r. 



Enum. 25; Leight. Brit. Lich. Exs. 166; Koerber, Lich. Germ. 93; 



Nyl. Nouv. Class, in Cherb, Mem. 3. 175. 

 Lecidea pustulata, Ach. Meth. 85 (1803); Schjcr. Spicil. 106. 190; Exs. 



156! 

 Gyrophora pustulata, Ach. L. Univ. 226 (1810); Svn. 66 ; Moug. & Nestl. 



Stirp. Vosges. 601; Turn. & Borr. Lich. Brit.' 232; Purton, Midi. Fl. 



2. 598 ; Heppe, Fl. Wurzb. 71 ; Tayl. Fl. Ilib. pt. 2. 155; Spruce's 



Lich. Pyren. ! 



