356 BOTANY OF SOCOTRA. 



Socotra. Sterilis tantum visa cum prsecedente et in eodem saxo observata. 

 Schweinf. 



Distrib. Endemic. 



6. P. endopyxinea, Mull. Arg. in Proc. Koy. Soc. Edin. xi. (1882), 459. 



Extus similis P. stcllaris, Nyl. var. acritce, Nyl. sed apothecia margine crasso, conniventer 

 crasse lobato v. grosse crenato (persistenter thalliuo et cum thallo concolore) prgedita. 

 Discus cinereo-v. subccesio-pruinosus. Lamina more Pyxinearum angusta, fuscescens et 

 hyp^tbecium fusco-atrum valde incurvatum, quam lamina pluries altius et circumcirca 

 inter lobos marginis thallinos et laminam nonnihil adscendens et quasi marginem proprium 

 f uscum rudimentarium repraesentans. Sporce ut iu Physcia picta, Nyl. ubi lamina multo 

 altior et bypothecium sub angustum. 



Socotra. Ramulicola, partim cum Pyxine convexa Mull. Arg. crescens. 

 B.C.S. nn. 1357 pro parte, 1359 pro parte, 1361 pro parte, 1400 pro parte, 1563 

 pro parte. 



Distrib. Endemic. 



7. P. picta, Nyl. Syn. p. 430. 



Socotra. Corticola supra Wadi Digal, alt. 300 m. in Balsamodendrc 

 (sterilis). B.C.S. n. 1354 pro parte. Schweinf. 

 Distrib. Extremely common in warm countries. 



var. rupicola, Bagl. Lick. Beccar. Afr. p. 242, n. 9. 



Socotra. Ad saxa quartzosa. B.C.S. n. 1404 pro parte. 

 Distrib. West Central Africa at Magumba. 



"O* 



var. sorediata, Miill. Arg. Lich. Afr. Occid. n. 12. 



Socotra. B.C.S. nn. 1372, 1412 pro parte, 1415 pro parte. Cum forma 

 genuina speciei et supra Wadi Kischen, alt. 600 m. (haec ulterior sterilis). 

 Schweinf. 



Distrib. Very common, like the typical form. 



Tribe 6. Pyxine^e. 



Pyxinece, El. Fries Syst. Orb. Veg. 266 (exclunis Umlilicariis). 



Thallus parmeliaceus, borizontalis, subtus rhizinis affixus. Gonidia globosa, herbaceo-viridia. 



Apothecia lecideina. — Differunt a Parmelieis apotbeciis lecideinis, a Pannarieis autem 



gonidiis. 



