

DURING TnE ' CHALLEJS'GEIl ' EXPEDITION. 227 



apothecia caeslo-pruinosa longiora dendroideo-divisa, thallodeo- 

 marginata ; spor^e 8-10 loculares, longit. 0'020-0*030 millini., 

 crassit. 0006-0'007 millim."— iV^Z. in litt. 



On the bark of trees : very sparingly gathered. 



10. Vebeucabia paha-meea, Nyl'-, sp. n. " Thallus macnla 

 luteo-pallescente indicatus ; apothecia pyrenio integre nigro, 

 parte dimidia superiore nuda convexa prominula (latit. 0*5- 

 0*7 millim.); sporse Snse, fuscse vel fuscescentes, ellipsoidese vel 

 oblongo-ellipsoidesD, 6-loculares vel demum loculis quibusdam 

 transversim divisis (ita duplicatis), longit, 0'024-0'034 millim., 

 crassit. 0"010-0-015 millim. lodo gelatina hymenialis dilute 

 vinose rosello tincta. 



Accedit versus V. lihricolam, sed sporse minores et simplici- 



ores." — iV^Z. in litt. 



On the bark of trees : very sparingly gathered. 



11. V. ALBESCENS, * subocheacea, iV^Z. " Differ t prseclpue 

 thallo subochracee tincto ; sporae incolores vel subincolores, seri- 

 ebus 4 bi- v. triloculosis, longit. 0"012-0016 millim., crassit. 

 0'008-0'009 millim. lodo gelatina hymenialis non reagens." 



On thin bark : apparently frequent. 



TONGATABU IsLAKD. 



1. Leptogium ctakizum, Nyl. 



On trunks of trees: infertile. (This is described in 'Nyl. 

 Syn.' p. 131, s. n. "i. cyanescens ;" but this was formerly em- 

 ployed in *Ach. Syn.' p. 326, as a var. of i. tremelloides. 



2. Eamalina subfeaxikea, Kyh 

 On branches ; fertile, 



3. Geaphis sceipta, f. pulveeulekta, Ach. 



On bark of trees : sparingly gathered. 



Kobe Kiotos, Japan. 



1. Steeeocaflo:^ peoximum, Nyl. 

 On the ground : sparingly fertile. 



2. Cladokia adspeesa, Flic. 



On putrid stumps amongst mosses : fertile. 



3. Eamalina calicaeis (JSffm^. 



On trees ? : a single small barren specimen. 



