-3- 



Of the 3 different kinds of Yucca which occur here, and of which T consider 

 the tree-shaped one according to your description as Yucca Po ca Iiiana ; there are 

 very different varieties (or perhaps different. species) present. This is true 

 namely of Yucca angustifolia , which we here, according to Lindheimer, mostly con- 

 sider to be Yucca f ilamentosa . 



Of Yucca Fortifolia Lindh . now Yucca ru picola indeed different forms occur, 

 denending on the location and soil, all however belong undoubtedly only to one 

 species, Of Yucca Pocall-iana , the tree-shaped, there are 2 kinds, one with very 

 long leaves, the other with very short leaves, the first with very large fruits 

 6-7 inches long, fleshy, sweet, the second with small 3 inch long fruits which 

 I saw 



Yucca angustifolia or filamentosa occurs in a great number of different forms, 

 with broad leaves, with very slender leaves, with many downward hanging fibres, and 

 almost without any such. Lindheimer maintains they always occur only in rotten lime- 

 stone ground; stem 1-4 feet high. The latter height is very seldom. I find this 

 or a similar one very fibrous, short- st emmed with pear-shaped entangled fruit also 

 in the granite region up here, however the leaves are very strikingly small. It 

 would be best to send a number of the different forms with roots already in Winter, 

 so that you yourself can examine them. Only the roots of these Yuccas with fibres 

 on the leaves produce, in the roots pounded with a wood hammer, a good Substitute 

 for soap, namely for washing of woolen things, to which it leaves a rIoss. It is 

 sold by the Mexicans under the name Amole. The roots of the larsre tree-shaped 

 Yucca and Yucca Fortifolia or rupicala are not to be used as soan, also do not 

 foam with washing. 



In your letter of July 21 you ask: if and which domestic grapes are cultivated 

 here. I have a vineyard of several acres in my nursery in which I mainly grow: 



1. Chan 



2. Gu. . . dal (which is grown wrongly under the name 



Cape of Good Hope) 



3. Concord 



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