PLATE XLIV. 



Figures magnified 375 diameters. 



Page. 

 Fig. 1. MiCRASTEKlAS TRIANGULARIS, Pennsvlvania and Xew Jersey form, 1 27 



'' 2. " " Florida variety, 127 



Figs. 3, 4. MiCRASTBRiAS CONFEKTA, Var. liamata, 127 



Fig. 5. MiCRASTERIAS ARCUATA, . 129 



6. MiCRASTERIAS TRUNCATA, . . 126 



" 7. " " Var. semiradiata, Naeg., 126 



" 8. " " Var. concatenata, Wolle, . 126 



" 9. " " Var. minor, WoUe, . 126 



" 10. MiCRASTERIAS poLiAfEA, a single cell, 130 



" 11. " " part of a series of more thuii furiy i-ells, 130 



