EPHEBEIA.J MAGMOPSni. 25) 



1. E. Mspidula Xyl. Flora, 1877, p. 321. — Thallus decumbent, 

 very much branched, rugnlose, opaque, spinulose or verruculose 

 towards the apices, olive- green or dark-brown. Apothecia ex- 

 ternally subgloboso-tuberculose, pale, the epithecium impressed ; 

 spores oblongo-ellipsoid, 0,010-0,015 mm. long, 0,004-5 mm. 

 thick. — Cromb. Grevillea, xii. p. 89; Journ. Bot. 1885, p. 195. — Cor- 

 nmdana hisjndtda Ach. Lich. Univ. (1810) p. 617. Cornicularia 

 puhescens (d. hispulida Gray, Xat. Arr. i. p. 406. — To this belongs 

 also Ei>hehe sjnnidosa Fr. &[.Jide Xyl. 1. c. 



The thallus is somewhat steUately expanded, with the branches verti- 

 cillately proliferous. From Ephehe pubescent it differs in being hispid and 

 moncecious, as ?dso in tlie structure of the apothecia. Of the few British 

 specimens seen, only one is .sparingly fertile. 



Hah. On damp quartzo-se and schistose rocks in subalpine distiicts. — 

 Di-^tr. Apparently local ar.d scaice, being known only from N. "Wales, and 

 the S. and Centra] Grampians. Scotland. — B. M. : Cader Idris, Merioneth- 

 shire ; Snowdon, Carnarvunsbire. Ben Lawers and Craig Tulloch, Perth- 

 shire. 



Subsp. E. Martindalei Cromb. ex Xyl. Flora, 1883, p. 104. — 

 Thallus scarcely spinulose : apothecia with the receptacle smarag- 

 dine above (or somewhat bluish in thin section) ; spores 0,009- 

 14 mm. long, 0,004-6 mm. thick. — Cromb. Grevillea, xii. p. 89 ; 

 Journ. Bot. "1885, p. 195. 



This differs from the t^^pe, of which, as .suggested by Xy lander (/. c), it 

 is almost a variety, in the nearly smooth thallus and the colour of the 

 receptacle. From Ephebe jnibe-^cetis it could consequently with difficulty 

 be distinguished in a sterile condition. 



Hab. On moist rocks in mountainous districts. — Didr. Very local and 

 scarce, having been gathered only in X.W. England. — B. M. : Mardale, 

 Westmoreland. 



Tribe IV. MAGMOPSEI Xyl. Flora, 1875, p. 103. 



Thallus pyrenopsidian, consisting of syngonimia ; gonimia mo- 

 derate, without order. Apothecia forming a peridium : spores 

 Snae, oviform, in oblong thecae. Spermogones not seen rightly 

 developed. 



This is a somewhat peculiar tribe, distinguished from all others in this 

 family by the apothecia (if not parasitic, as Xylander is now rather 

 inclined to think) constituting yje/vW/rt — that is, a closed pyrenium without 

 any true ostiole. It consequently holds an analogous relation among 

 the Ephehdcei to Peridiei among the Lichenacei. F'rom the Phylliscodei 

 it differs in the characters of the apothecia and the gonimia. 



7. MAGMOPSIS Xyl. Flora, 1875, p. 103.— Thallus indeter- 

 minate; syngonimia glomerulose or granuloso-difform, greenish- 

 yellow, gonimia pale-glaucous or concolorous with the rest of the 

 thallus. Apothecia small, the peridium (under the microscope) 



