arthonia] arthoniace/E 209 



or stellate groups, naked or often vermilion-powdered at the 

 margins. — Coniocarpon cinnaharinum var. astroideiim Leight. in 

 Ann. Mag. Nat. Hist. ser. 2, xiii. p. 445 (1854) pro parte. 

 Arthonia cinnaharina var. anerijthrea f. astroidea Leight. Lich. 

 Fl. p. 400 (1871); ed. 3, p. 422; var. kermesina f. marginata 

 Leight. II. c. pro parte ; var. opegraphina Leight. in Grevillea 

 i. p. 59, t. 4, f. 7 (1872) & Lich. Fl. ed. 3, p. 423. A. radiata 

 var. opegrapMna Ach. Lich. Univ. p. 669 (1810). A. astroidea 

 var. opegraphina Ach. Syn. p. 6 (1814) ; Cromb. Lich. Brit, 

 p. 103 ; var. epipastoides Leight. II. c. (non Nyl.). 

 Exsicc. Mudd nos. 233 (as var. inarginata), 234. 



Perhaps only a growth form. The narrow edge of bright red 

 granules round the ardellae is very striking in nearly all the specimens. 



Hah. On trees.— Distr. Somewhat rare in S. and N. England and 

 S. Ireland. — B. M. Withiel and St. Breock, Cornwall ; Oakle^^ Park, 

 Cirencester, Gloucestershire ; Air^^holme and Ayton, Cleveland, York- 

 shire. 



Form Clispidans A. L. Sm. — Thallus as in the variety. 

 Apothecia elongate, slender, the ends pointed, scarcely tinged 

 with red ; spores rather smaller, 0,016-19 mm. long, 0,005-7 mm. 

 thick. — Arthonia cinnaharina f. cuspidans Nyl. in Flora lix. p. 310 

 (1876); Cromb. in Grevillea v. p. 30: Leight. Lich. Fl. ed. 3, 

 p. 423. 



Exsicc. Larb. Lich. Hb. n. 235. 



Hah. On trees. — Distr. Hare in S. and W. Ireland. — B. M. 

 Cromaglown, Killarney and Glencar, Kerry ; Doughruagh Mt. and 

 Berry clare, Connemara, Galway. 



Var. kermesina A. L. Sm. — Thallus whitish or tinged red or 

 purple. Apothecia usually convex, powdery, more or less 

 vermilion-coloured. — Vars. cinnaharina, rosacea, detrita and duhia 

 Mudd Man. p. 249 {Spiloma gregarium A'ars. Turn. & Borr. I. c). 

 Coniocarpon cinnaharinum vars. Leight. /. c. A. cinnaharina var. 

 kermesina Nyl. Lich. Scand. p. 257 (1861) ; Cromb. Lich. Brit, 

 p. 102; Leight. Lich. Fl. p. 399 ; ed. 3, p. 422, inch ff. cinna- 

 harina, rosacea, detrita and duhia. Spiloma tumidulum Sm. Engl. 

 Bot. t. 2151 (1810) (non Ach.?). Lepra kermesina Schser. 

 Enum. p. 240 (1850). 



Exsicc. Leight. nos. 249, 250. 



Differs from the type in the marked vermilion or purple colour. 

 The thallus varies from whitish to a deep purple ; the apothecia are 

 usually a deep red, and occasionally thallus or apothecia somewhat 

 whitish-pruinose. 



Hah. On trunks of trees. — Distr. More or less connnon through- 

 out the British Isles, — B. M. Rozel, Jersey ; St. Breock, Cornwall ; 

 near Becky Falls, near Lustleigh and Torquay, Devon ; Chedworth 

 Woods, Gloucestershire ; New Forest, Hants ; Ardingl}-, Sussex ; 

 Epping Forest. Essex ; Twycross, Leicestershire ; Hay Park, Ludlow, 

 Shropshire ; Forden, Montgomeryshire ; King's AVood, Airyholme 

 AVood, Ingleby Park and near Ayton, Cleveland, Yorkshire ; Nannau, 

 II. P 



