370 ON THE LICHENS OF THE ENGLISH POLAR EXPEDITION. 



gelatina hymen, iodo colore dilutissime roseo tincta, praBcedente 

 caerulescentia levissima fugacissima. 



7. Poltcoccum Sporastati^: (Anzi), Am. 



Cape Union, altit. 1200 feet, on the thallus of Sporastatia testtt- 



dinea. — Apothecia immersa ; paraphyses distinctae, numerosae, gra- 

 ciles ; sporae in ascis ventricosis 8nae, subellipsoideae vel ovoideae 

 diblastae, altero loculo angustiore, demum nigricantes, 0018- 

 0*020 mm. longae et 0009-0010 mm. crassae ; gelatina hymen, 

 iodo violascens. 



8. Sph^ria * 



"Westward-Ho ! Valley, on areolae of Bhizocarpon geographicum, 

 which are killed and made white by it. — Apothecia parva, im- 

 mersa, atra ; paraphyses copiosae, ramosae ; asci cylindrico-clavati ; 

 sporae 4nae, una serie dispositae, oblongae, ntrinque obtusae, tetra- 

 blastae, ad septa (praecipue medium) nonnihil constrictae, in uno- 

 quoque loculo guttulam oleosam centralem lateralemve (rarius 

 duas magnitudine similes dissimilesve) foventes, obscure fuscae, 

 0-028-0-032 mm. longs© et 0-009-0-010 mm. crassae. Iodo para- 

 physes fulvescunt, contentus ascorum rufescit. 



9. Spbleria . 



In the vicinity of Floeberg Beach, on a sterile saxicolous crust. 



Apothecia parva (ad 0*2 mm. lata), adnata vel semiimmersa, 

 primum subglobosa, dein varie corrugata et apice quasi discissa, 

 atra ; paraphyses graciles, ramosae, anastomosantes ; asci cylin- 

 drico-clavati ; sporae 4-6nae, una serie dispositae, ellipsoideae, medio 

 constrictae, utrinque obtusae, diblastae, 0*01 5-0*017 mm. longae et 

 0-007-0-009 mm. crassae. Iodo non mutatur, nisi quod contentus 

 ascorum fulvescit vel brunnescit. 



10. Sph^ria 



Westward-Ho ! Valley, on dead parts of the thallus of Thamno- 



lia vermicularis. — Apothecia minutissima, tantum lente value 

 augente detegenda, hyphis nigricantibus toruloideis imposita, atra; 

 paraphyses nullae distinctae ; asci ventricosi ; sporae 8nae, ovoideae 

 vel oblongo- ovoideae, utrinque obtusae, diblastae, incoloratae, 0015- 

 0*018 mm. longa* et 0005-0007 mm. crassae. Iodo insigniore 

 modo non mutatur. 



* On account of a deficient knowledge of Mycology, I have thought proper 

 not to give names to the following three species, thoughmost probably all are 

 new to science. 



