Report of U. S. National Museum, 1897. I 



Plate 66. 



Fig. 1. CRISTELLARIA CALCAR Linn^us. See Page 31S. 

 Fig. 2. CRISTELLARIA ECHINATA D'Orbigny. See Page 318. 

 Fig. 3. CRISTELLARIA ACULEATA d-Orbigny. See Page 318. 



