26 



5. Acrochsetium gracile nov. spec. 

 Thallus csespitosus usque ad 1 mm. altus et ultra. 

 Pars basalis e filis repentibus. epiphyticis, plus minus lateraliter 

 confluentibus composita. Fila erecta, simplicia aut paucis ramulis 



Fig. 19. Acrochsetium gracile nov. spec. 



a and b, erect filaments with sporangia, c, base of a plant. 



(a and b, about 150: 1; c, 250: 1). 



in superiori parte instructa, ramulos sporangit'eros, 1 2 raro 

 plures cellulas continentes gerentia, ad apicem versus leniter 

 attenuata ex cellulis cylindricis in inferiori parte filorum 5,5 u 



