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breviter infra summum verticillatim disposita, breviter pedicellata, pedlcelli longitudo 

 sporidii diametri longitudinalis triens usque quadrans, sporidiorum interanea dense gra- 

 nulosa, interdum vacuola singula majore instructa. 



Habit, in fossis per sylvas acerosas ductis per totum annum aqua leniter fluitante 

 repletis sylvae Sebaldianae (Reichsforst) in Franconia, ibidem in foliis acerosis delapsis 

 fructibus ramisque plantarum acerosarum delapsis insidentes caespites usque unciales fluctu- 

 antes lubricos ochroleucos constituens, una cum Hyalotbeca mucosa. 



Tab. XXV. Fig. 1. Hyphasraatis pars minor ex floccis compluribus copulatione conjunctis constituta, aa. 

 copulationis processus, bb. loci copulatione conjuiicti ; Fig. 2. flocci copulatione conjuueti duplo amplificat. 

 delineati; Fig. 3. fructificatio infra floccum summum ex duobus sporidiis constituta, sporidiorum interauea vacuola 

 singula majore instructa ; Fig. 4. fructificatio ex 5is sporidiis constans, sporidiorum interanea dense granulosa. 



Dabam Erlangae in Franconia 

 III. p. Id. Novembr. 1865. 



Conspectus generum ac specierum novarum. 



E f amilia D e sm i 

 Cosmarium circulare P. Reinsch. 

 Cosmariuni plicatum P. Reinsch. 

 Cosmarium Hammeri P. Reinsch. 

 Cosmarium Regnesi P. Reinsch. 

 Cosmarium obsoletum Hanlzsch. 

 Cosmarium norimbergense P. Reinsch. 

 Cosmarium concinnum Rabenhorst. 

 Cosmarium trilobnlatum P. Reinsch. 

 Euastrum (Eucosmium) Kützingianum F. 

 Euastrum Sendtnerianum P. Reinsch. 

 Euastrum elegans Brebissoii. var. declive 

 Xanlhidium bicornutum P. Reinsch. 

 Micrasterias angulosa Hanlzsch. 

 Micrasterias Hermanniana P. Reinsch. 

 Staurastrum erlangense P. Reinsch. 

 Staurastrum Pseudincus P. Reinsch. 

 Staurastrum aculeatum Ehrenberg, forma Er 

 Staurastrum franconicum P. Reinsch. 

 Staurastrum Meriani P. Reinsch. 

 Staurastrum saxouicum P. Reinsch. 



