PLATE XLVIII. 



Figures magnified 500 diameters. 



Page. 

 Fig. 1. Staurastbum Brasixiense, . . . . . l i<; 



Figs. 2, 3. two end views, Florida and New 



Jersey forms, . . .1 16 



1,5,6. Stai rastri m eustephani m. Minnesota form, . . 117 



" 7,8.' Staubastrum cuneatum, front and end views, . .148 



9,10. Staubastrum eustephanum, (typical form,) . . 117 



Fig. 11. (elongated processes), . . 147 



Figs. 12, 13. Staurastbum furcigerum, end and front view, . . 146 



Fig. 14. ' a variety. . . . . 1 17 



Figs. 15, 16. Staurastbum fubcatum, variety, .... 150 



