100 



ridia subnuda in soros coacerava^a, saepe ter- 

 na conrtata. Color constanter purpureus vei 

 roseus. 



^Licigoret^ Lamour. 4 Sp. 



PolyideSi Ag. i Sp. 

 Ckondria, Ag. 28 Sp. 



Digenea, Ag. i Sp. 



Hali/mema, Ag. 12 Sp. 

 Rliodomela, Ag. 14 Sp. 

 i^phcerococciiSy Stackh. 86 Sp. 

 Thanmophoray Ag. i Sp. 



Grateloupia, Ag. 2 Sp. 

 ■ Ptilota, Ag. 2 Sp. . 



Bonnemaisoniaf Ag. 3 Sp. 

 Delesssria, Ag. 18 Sp. ' 

 Dneillia, Ag. i Sp. 



XVIi» FucoiDE^, Lamour. : Algee 

 inembraoace^ vel coriacese, planee vel 

 filiformes, contiuuep, oiivace^, sporidia 

 habentes in capsulis immersis inclusa^ 

 vel nuda in corpuscula clavata affarel 

 gata. ^^ 



Radix fibrillosa vel scutata. Frons filifor- 

 mis vel expansa, rarius tubuiosa, membranacea 

 vel coriacea, interdum vesiculifera, scepe fda 

 caespitosa confervoidea emittens, olivacea, exsic- 

 catione s^pe nigrescens. Sporidia nigra tenii- 

 issima, in capsulis limbo hyalino cinclis fron- 

 di immersis inclusa, vel rarius filiformia se- ^ 

 ptata ciavata nuda. 



Chordaria, Ag. 4 Sp. 

 Scytosiphon, Ag. 2 Sp. 



Spo" 



