THE YUCCEAE. 99 



the usual dense tomentose pubescence of its panicle which 

 is closely branched in the crown of leaves, though on occa- 

 sional unmistakable specimens of this species nearly or 

 quite glabrous panicles are seen. 



Though mentioned as a Mexican plant by Mr. Hemsley,* 

 he gives only the original locality of Schott, near the boun- 

 dary, and Professor Sargent, f who states that it ranges 

 southward through Sonora, gives no details of its distribu- 

 tion in Mexico. Specimens and photographs of the only 

 Yucca observed in the Cape region of Lower California by 

 Mr. Brandegee, which he has kindly allowed me to see, do 

 not show that this is distinguishable from Y. Schottii of 

 Arizona. 



Leaves of Y. Mazeli, collected in the Thuret garden at 

 Antibes by Mr. Alwin Berger, are scarcely to be compared 

 with any species known to me except Y. Schottii, though 

 they differ from those of the latter that I have seen in being 

 persistently a little denticulate. 



Y. Schottii Jaliscensis Trelease. 



T. Treculeana ? Rose, Contr. U. S. Natl. Herb. 5:241. 

 F. Schottii Urbina, Cat. PI. Mex. 353. 



A stout large branched tree, with leaves sometimes very large. 

 Scarcely otherwise distinguishable from the type, and, like it, blooming in 

 late summer or autumn. Plate 56. 



Chiquilistlan to Zapotlan, Jalisco, Mex., frequent in 

 hedges but of undetermined spontaneous range. Plate 

 96, f. 1. 



In speaking of Mexican fiber plants, Dr. KoseJ mentions 

 one known as isote," which he doubtfully refers to 

 Y. Treculeana and states is common on the table lands of 

 western Mexico. A leaf of isote bought by him in the 

 market of Guadalajara (E. B. 68), which he was kind 

 enough to let me examine, though measuring 75 X 750 



* Biol. Centr.-Amer. 3 : 371. 



t Silva, 10 : 17. 



J Contr. U. S. Natl. Herb. 5 :241 



