graphidei). Egena quoque céleris tribubus invenitur hsec vegetatio 

 comparata cum eadem in aliis terris tropîcîs. 



(Trib. I. Lichinei. — Desiderantur.) 



Trib. II. - GOLLEMEI. 



Psiulia Fée. 



1. P. pullata Fée (Gyrophora? pertbrata Pers. Uran. p. 202), Nyl. 

 Syn. p. 98. — In insulis Marianis ad rupes maritimas. 



Collema Ach. , Nyl. 



1. C. byrsinum Ach., Nyl. Syn. p. 113. — In Taïti et Nukahiva, ad 

 cortices fréquenter. 



2. C. flaccidum Ach. — In Taïti, ad cortices stérile, Vesco. 



3. C. aggregatum (Ach.) var. thysanœum (Ach.) Nyl. Syn. p. 115. 

 — In Taiohae insularum Marquises, Jardin. 



4. C. nigrescens Ach. — Nukahiva ad Pandanum, Jardin ; in ins. 

 Rawak (Coll. vespertilio Pers. Uran.). 



îieptog-iuBM Fr. 



1 L. diaphanum Mnt. (Coll. erythrophthalmum Tayl. 1. c. p. 195, ex 

 ins. Philippin, ad corticem, coll. Cum. n° 2171). — Taïti, Nukahiva. — 

 (Observetur, hoc non sistere Collema diaphanum Sw. Lich. Amer. t. 23, 

 Ach., non differens a L. tremelloide solito, nam thallus modo subhyali- 

 nus est liquido quodam, quo spécimen typicum immersum fuerit). Specie 

 non differt a sequente. 



2. L. tremelloidesVr. (Lichen cochleatus Wither., Dicks. PI. Cr. Br. 

 1, t. 11, f. 9). — Taïti, Nukahiva. — Simul varietates azureum (Ach.), 

 et marianum (Mnt.) Nyl. Syn. p. 125, hoc in insulis Marianis, ad 

 truncos arborum(nec differunt ab eodem Coll. peltigera Bor., C. ulvaceum 

 Pers. Uran. p. 203, et C. atrovirens Pers.) et in insulis Sandwich. 



3. L. chloromelum (Sw.) Nyl. Syn, p. 128. — Tn Taïti. 



h. L. phyllocarpum (Pers.) var. cœrulescens Nyl. Syn. p. 130. — 

 In Taïti (Lépine, Vesco, Beechey, etc.). 



5. L. sphinctrinum Nyl. Syn. p. 131. — In insulis Marianis, Le 

 Guillou. 



6. L. cyanescens Nyl. Syn. p. 131. -~ In Nukahiva, Jardin. 



7. L. dendriscum Nyl, Syn. p. 135. — Papeiti, ad filices, Vieillard 

 et Pan cher. 



