452 3 BOTANICAL GAZETTE [TUNE 
Fic. 12.—G. Botryapites (Schw.) Kern (R. Ellisii Peck): the inner wall is 
the one to the right. 
Fic. 13.—G. Nelsoni Arth. > 
Fic. 14.—R. cornuta (Pers.) Fries. 
Fic. 15.—G. inconspicuum Kern (R. Harknessianoides Kern). 
Fic. 16.—R. Harknessiana Ellis & Ev. 
1G. 17.—Roestelia sp., an unnamed species, the only one having spinulose 
migaktoiay | a, side view; b, face view. 
