36 CYCLOCARPINEX [EPHEBEIA 
paraphyses numerous, slender, slightly clavate at the tips ; spores 
constantly simple, colourless. 
Distinguished from the preceding genus by the presence of 
paraphyses in the apothecium. 
1. E. hispidula Nyl. in Flora lx. p. 231 (1877).—Thallus 
olive-green or dark-brown, much branched, decumbent, the fila- 
ments slender, rather uneven on the surface, with spine-lke 
branchlets. Apothecia closed at first and subglobose, the dise 
becoming open and somewhat depressed ; paraphyses slender, 
sparingly branched, slightly clavate; spores oblong-ellipsoid, 
10-15 p long, 4-5 p thick.—Cromb. in Journ. Bot. xxiii. p. 195 
(1885). Cornicularia hispidula Ach. Lich. Univ. p. 617 (1810). 
E, pubescens var. hispidula 8S, F. Gray Nat. Arr. i. p. 406 (1821). 
Exsice. Johns. n. 2. 
Distinguished from EHphebe pubescens by the minute branchlets on 
many of the filaments, giving it a spinous or hispid appearance. 
Hab.—On damp quartzose and schiztose rocks in subalpine 
districts.—Distr. Rare in N. Wales, 8S. and N. England, and among 
the Grampians, Scotland.—B. M. Ivy Bridge, Devon; Cader Idris, 
Merioneth ; Snowdon, Carnarvonshire ; Ben Lawers and Craig Tulloch, 
Perthshire. 
Subsp. Martindalei Cromb. in Journ. Bot. xxiii. p. 195 
(1885).—Dittering from the species in the less hard and spiny 
branching. Apothecia bluish-green above ; spores oblong-ellipsoid, 
9-14 p long, 4-6 p» thick.—KEphebeia Martindalei Cromb. ex Nyl. 
in Flora Ixvi. p. 104 (1883) & in Grevillea xii. p. 89 (1884). 
The damp locality where the plant was collected may have 
influenced the growth. It is lighter in colour and softer looking. 
Hab. On moist rocks in mountainous districts—B. M. Mardale, 
Westmoreland. 
Orper IV. PYRENOPSIDACEZ. 
Thallus gelatinous when moist, crustaceous or partly squamu- 
lose or minutely fruticose, non-corticated. Algal cells Myxophycez 
(Glocecapsa, Chroococcus). Apothecia small, open or subimmersed 
and partly closed ; spores 8 in the ascus, colourless, simple or 
rarely septate. Spermogones with minute ovate or elongate 
acrogenous spermatia, 
The algal cells occur in small colonies, each surrounded by 
mucilage ; they are blue-green, or coloured red or yellow, especially 
towards the surface of the thallus, by various colouring substances. 
The following genera are British :— 
Alg with reddish sheath, externally. 
Thallus crustaceous. 
Apothecia open or plane............ccsssecsesees 17. Euopsis. 
Apothecia almost closed..............sceceee one 18. Pyrenopsis. 
Thallus fruticose, of short tufts ...............20800 19. Synalissa. 
Algze with yellow sheath, externally. 
Thallus crustaceous, dark-coloured...............55 20. Psorotichia, 
