PAGES 
Hormophysa articula ta Kütz. 161 
HYALODISCUS Ehr 151 
— maximus Eut 152 
HYALOTHECA Ehr 33 
HYDROCLATIIRUS 1G4 
HYDROCOLEUM Kütz 6 
HYDROSERA Wall 128 
HYPNEA Lamour ... 171 
Isthmia enervis Ehr 124 
— minima Bail, et Harv... 124 
ISTHMIELLA Cleve 124 
Jania sp 181 
— adhaerens Lamour. . . 181 
KALLYMENIA J. Ag 170 
KURZEA Mart 20 
LAMPRISCÜS Bail 139 
LAUÜERIA Cleve 117 
LAURENCIA Lamour 174 
Leplothrix calcieola Kütz. . 5 
— punctiformis Zanard. ... 5 
Leveillea Schimperi Dec. ... 177 
LIBELLUS Cleve 58 
LICMOPHORA Ag 112 
— constricta Grun 113 
— Meneghiniana Kütz. ... 113 
LITHOPHYLLUM Phil 179 
LITHOTHAMNION Phil 180 
LOMENTARIA Lyngb 172 
LORIELLA Borzi 1 
PAGES 
LYNGBYA Ag 7 
— anguiua Mont 7 
— coaclilis Zanard 6 
— erosa ( Lieb .) Kütz 7 
— hyalin a Borzi 7 
— prasina Mont 7 
— tropica Kütz 7 
MARGINARIA Bich 161 
MARTENSIA Heiing 173 
MASTOCARPUS Kütz 179 
MASTOGLOIA Thwaites 68 
— angulala Lew 68 
— cribrosa Grun 83 
— undulata Grun 69 
MELOBESIA Lamour 179 
MELOSIRA Ag 149 
— angulala Rbh 143 
— marina Jan. et Rbh. ... 150 
— nummuloides Ag 149 
— sulcata Kütz 150 
MICRASTERIAS Ag 49 
MICROCOLEUS Desm 6 
M1CROÜICTVON Dec 21 
MICROSPORA Thur 4 
MOELLERIA Cleve 132 
MOUGIOTIA Hg 31 
Mycoidea parasilica Cunningh. 17 
NAYICULA 42 
— arenaria Donk 50 
— apis Donk 46 
— bicuneata Grun 51 
