20 
81 G Baliostichus Sternb. 
817. Caulerpites Sternb 
Carpolithes Schloth. pt. 
Fucoides Brongn. pt. 
818. Chondrites Sternb. 
819. Codites Sternb. 
820. Confervites Brongn. 
821. Cylindrites Göpp. 
822. Cystoseirites Sternb. 
823. Delesserites Sternb. 
824. Dictyotites Brongn. 
825. Encoelites Sternb. 
826. Fucites Brongn. 
827. Gigartiuites Brongn. 
828. Gyrogonites Lam. 
Algae. 
829. Gyrophyllites Glock. 
830. Halymenites Sternb. 
Achilleum Goldf. 
Gastridiopsis Mass. 
Soleniopsis Ej. 
831. Halyserites Sternb. 
832. Keckia Glock. 
833. Laminarites Sternb. 
834. Münsteria Sternb. 
835. Plocarites Massai. 
836. Rhodomelites Sternb. 
837. Sargassites Sternb. 
838. Sphaerococcites Sternb. 
Algacites Schloth. 
839. Zonarites Sternb. 
Class II. 
840. Arthonaria Fries. 
Arthronaria Endl. 
841. Cliostomum Fries. 
Cleiostomum Körb. 
842. Epilithia Nyl. 
843? Epinyctis Wallr. 
Nodularia Flörke. 
844. Inciliaria Fries. 
Incillaria Rchb. 
845. Isidiuin Ach. 
? Pityria Fries. 
846. Lepra Hall. 
Series I. 
Ordo 
852. Ephebe Fries. 
Thermutis Ej. 
853. Chroolepus Ag. 
Amphiconium Nees. 
Trentepohlia Mart. pt. 
854 Byssus Fries. 
855. Ulocodium Massai. 
856. Coenogonium Ehr. 
Ordo 
Trib. I. Lichineae, 
S61. Gonionema Nyl. 
862. Lichina Ag. 
Lychina Gray. 
Lichenes. 
Imperfectae. 
(846.) Lepraria Ach. 
847. Naevia Fries. 
848. Pulveraria Ach. 
Pulina Adans. 
Phytoconis Bory. 
Leptuberia Raf. 
849. Pyrenothea Fries. 
Pyrenotea Ej. 
Gelatinaria Flörke. 
850. Spiloma Ach. 
851. Variolaria Ach. 
Hoinoeomerici. 
I. Byssacei. 
(856.) Caenogonium Kunth. 
? Dichonema Nees. 
857. Racodium Pers. 
Rhacodium Spreng. 
858 Cilicia Fries. 
859. Chrysolhrix Mont. 
860? Gausapia Fries. 
II. Gelatinosi. 
863. Pterygium Nyl. 
Trib. 2. Obryzeae. 
864. Obryzum Wallr. 
