1895.] 



MICROSCOPICAL JOURNAL. 



73 



1 Spores fusiform, colorless. — Continued. 

 c Thalus uniform 6 

 6 Apothecia lirellteform 

 6 Apo. patellneform z 



z Stipitate 



z Sessile 

 6 Apothecia rounded, exciple paler than the disk 



X Black 



X Exciple obscure 



X Apothecia immersed in a white stroma 



X Apo. immersed in stellate pseudo-stroma 

 li Apothecia oblong p 



p Exciple obscure 



p Ex. black 



p Apothecia immersed in a white stroma 



p Apo immersed in a stellate pseudo-stroma 

 6 Apothecia cephaloid m 



m Stipitate 



m Sessile 

 6 Apothecia difform n 



n Exciple black 



n Apothecia immersed in a white stroma 



n Apo. immersed in a stellate pseudo-stroma 



a 



Spores acicular. 

 1 Th. fruticulose 

 1 Th. caulescent 

 1 Th. disappearing 

 1 Th. frondose foliaceous a 

 a Apothecia scutellseform 

 a Apo. peltajform 

 I Th. uniform b 



b Apothecia innate, superficial 

 b Apo. urceolate, biatorine 

 b Apo. patelli3eform z 

 z Apo. f^oftish 

 z Apo. horny 



H 



51 Opegrapha 



43 Bseomyces 

 44 Biatora 



X 



48 Lecanactis 



49 Platygrapha 



54 Chiodecton 



56 Arthonia 



49 Platygrapha 



51 Opegrapha 



54 Chiodecton 



56 Arthonia 



43 Bfeomyces 

 44 Biatora 



51 Opegrapha 



54 Chiodecton 



56 Arthonia 



39 Stereocaulon 

 46 Lecidia 

 68 Sagedia 



14 Sticta 

 16 Peltigera 



68 Sagedia 

 35 Gyalecta 



44 Biatora 

 46 Lecidia 



Spores muriform. 

 1 Spores colored a 

 1 Sp. decolorate b 

 a Spores fucescent 

 a Sp scarcely colored 1 

 1 Thallus dark green 



1 Thallus lead colored 

 a Spores brown 2 



2 Apothecia disk colored differently from the thallus 6 Alectoria 

 2 Apo. scutellseform t 



t Blackened gy rose-plicate 



t Urceolate scutelloeform 

 2 Apothecia urceolate u 



u Thallus uniform 



u Th. crustaceous, uniform 

 a Apothecia lirellisform 

 a Apo. patellseform 3 



22 Pannaria 



27 Collema 

 28 Leptogium 



13 Umbilicaria 

 36 Urceolaria 



36 Urceolaria 



37 Thelotrema 



53 Graphis 



