Ehrb; striolatum, Naeg; polymor 

 phum, Breb; crenulatum, Naeg. 

 (Delp.); muricatmn, Breb; aspenim 

 Breb; pimctulatum, Breb; pygmaeum 

 Breb; alternans, Breb; dilatatum 

 Ehrb; eyi'toeerum, Breb; cyrtocerum 

 var. major, Wolle; cyrtocerum, var 

 pentacladum, Wolle ; paradoxum, Mey- 

 en; aracline, Ralfs; eomptum, Wolle 

 elongatum, Barker; pusillum, Wolle 

 cerastes, Lund: gracile, Ralfs; Ophi 

 lira, Lund; macrocerum, Wolle; odon 

 latum, Wolle; pentacladum, Wolle. 

 leptoeladum, Xord; Ankyroides, var 

 hexacerum, Wolle; nanum, Wolle 

 vestitum, Ralfs; Sebaldi, Reinsch 

 Pseudosebaldi, Wille; anatinum 

 Cooke and Wills; teliferum, Ralfs, 

 eehinatum, Breb; tridentiferum 

 Wolle; fureigerum, Breb; eusteplia 

 num, (Ehrb.), Ralfs; enorme, Ralfs. 



SCHIZOSPOREAE. 



Calothrix Hosfordii, Wolle. 

 Isactis caespitosa, (Kg.), Wolle. 

 Gloeotrichia natans. Thur. 

 Rivularia dura, Kg, 

 Scytonema. 



Tolypotrichoides, Kg; cortex, forma 



saxicola, Green. 

 Tolypothrix. 



Distorta, Kg; muscicola. Kg; pulchra, 



Kg. 



Sirosiphon ocellatus. Kg. 



Hapalosiphon. 



Braunii, Kg; Brebissonii, Kg; fusces- 

 cens. Kg; tenuissimus, Grun. 



Xostoc. 



Commune, Vauch; rupestre. Kg; pru- 

 niforme, Ag; verrucosum, Vauch. 



Anabaena. 



Variabilis, Kg. 



Oscillarioides, Bory. 

 Cylindrospermum, limnicola. Kg. 

 Lyngbya papyrina, (Kg.), Kirch. 

 Oscillaria. 



Subtilissima, Kg; tenerrima. Kg; 



antliaria, Juerg; gracillima. Kg; lep- 



totricha, Kg; aerugineo-coerulea, Kg; 



tenuis, Ag; limosa, Ag; natans, Kjg; 



anguina, Bory; Froelichii, Kg; prin- 



ceps, Vauch. 

 Leptothrix. 



Tenax, Wolle; rigidula, Ag; lamino- 



sa. Kg. 

 Coelosphaerium Kuetzingianum, Naeg. 

 Clathrocystis aeruginosa, Henfr. 



Total, 



331 



450 



