76 MISSOURI BOTANICAL GARDEN. 
broad, it is deeper green and without markings left by ad- 
joining leaves. The flowers are larger and the stamens are 
inserted toward the upper part of the tube. 
This species, like Agave Schottit and A. Lechuguilla, has 
the leaves usually turned to one side. It isone of the Amole 
plants used by the Mexicans and Indians of the region as 
a substitute for soap. It grows with Agave Schottii at an 
elevation of about 6,500 feet. I take pleasure in naming 
this interesting succulent in honor of Dr. Wm. Trelease, 
Director of the Missouri Botanical Garden. 
EXPLANATION OF PLATES. 
Plate 32, Agave Treleasii.—1, Medium-sized leaf of mature plant, 
X #; 2, 3,4, transverse sections of leaf, x $; 5, terminal portion of in- 
florescence, X #; 6, terminal portion of scape with flowers removed, < §; 
7, flower partially split open, showing the insertion of the filaments, 
: ie See 
Plate 33, Agave Treleasii.— 1, Group of plants in the foreground, the 
short scape arising as an offset from a mature plant. (Beyond and at the 
right is a group of A. Schottii). 2, Group of plants showing the filif- 
erous leaf-margins and numerous Offsets, 
