336 



LTCITFXACEI. 



PAXXARIV. 



Osving to the separation of the fullowiuggeuus formerly inchidecl in it, 

 this is now much better limited both in the character of the thallus and 

 of the apothecia. Most of the species ai'e exotic ; but, with a few ex- 

 ceptioas, those which are European occur in this country. 



Fig. r,5. 



Paunaria. rv.higbwm. Del. — a. Vertical secUon of tballus with bypothalline 

 filameuts, X 200. b. A theca and paraphyses, X 350. c. Spores, X ."lOO. d. 

 Jointed sterigmata and spermatia, xoO<J. 



1. P. ruUginosa Del. in Dub. Bot. Gall. (1803) p. 606.— Thallus 

 orbicular, membranaceous, appressed, smooth, laciniate at the cir- 

 cumference, livid-glaucous or pale ; lacinife somewhat plane, inciso- 

 lobulate and crenate, creuulate and silvery-white at the margins ; 

 hypothallus spongioso-tomentose, bluish-black. Apothecia mode- 

 rate, plane, red or reddish-brown, the thalline margin crenulate, 

 silvery- white ; spores ellipsoid, often somewhat acuminate at the 

 apices, 0,017-30 mm. long, 0,006-0,011 mm. thick; hymenial 

 gelatine bluish with iodine. — Mudd, Man. p, 122 ; Cromb. Lich, 

 Brit. p. 42 ; Leight. Lich. Fl. p. 164, ed. 3, p. 150. — Pannelia ru- 

 bir/inosa Gray, Nat. Arr. i. p. 440 ; Hook. Fl. Scot. ii. p. 53. Par- 

 melia 2>T-uinhea ft. affiuis Tayl. in Mack. Fl. Hib. ii. p. 142. Lichen 

 rubif/inosus Thunb. Fl. Cap. (1794) p. 176. ISijuamaria affinis Sm. 

 Eng. Fl. V. p. 196. Lichen affiitis Dicks. Crypt, fasc. iv. p. 24, t. 12. 

 f. 6: Eng. Bot. t. dS3.—Brii. E.is. : Leight. n. 234 ; Cromb. n. 53 ; 

 Larb. Lich. Hb. u. 11. 



A rather beautiful plant, well marked by the silvery-white margins of 

 the lacinias and by the bluish-l)lack hypothallus. In tht" centre the 



