416 



While some Palms, as indicated, descend to cooler latitudes, 

 others ascend to temperate and even cold mountain regions. 

 Among the American species are prominent in this respect : 

 Euterpe andieola, Brogn., E. Haenheana, Brogn., E. longi- 

 vaginata, Mart., Diplothemiwn Porallyi, Mart, and Ceroxylon 

 pithyrophyllum, Mart., all occurring on the Bolivian Andes 

 at an elevation of about 8000 feet. — Ceroxylon andieola, 

 Humb., Kuntliia montana, Humb., Oreodoxa frigida, Humb., 

 and Qeonoma densa, Linden, reach also on the Andes of 

 New Granada a height of at least 8000 feet. — Ceroxylon 

 Klopstochia, Mart., advances on the Andes of Yenezeula to 

 a zone 7500 feet altitude, where Karsten saw stems 200 feet 

 high with leaves 24 feet long ! There also occur liyagrus 

 Sancona, Karst. and Platenia Chiragua, Karst. at elevations 

 of 5000 feet, both very lofty Palms. From the temperate 

 mountain regions of sub-tropical Mexico are known among 

 others : Chamaedora concolor, Mart., Coper nicia Pumos, 

 Humb., C. nana, Kunth, and Braliea dulcis, Mart., at eleva- 

 tions from 7000 feet to 8000 feet. 



Xanthorrhiza apiifolia, l'Herit. 



North America. A perennial almost shrubby plant of 

 medicinal value. The root produces a yellow pigment, 

 similar to that of Hydrastis Canadensis, L. Both contain 

 also Berberin. 



Ximenia Americana, L. 



Tropical Asia, Africa and America, passing however the 

 tropics in Queensland, and gaining also an indigenous 

 position in Florida. This bush may therefore accom- 

 modate itself to our clime in localities free of frost. 

 The fruits are edible, resembling yellow plums in ap- 

 pearance ; their taste is agreeable. The wood is scented. 



Yucca filamentosa, L. 



The Adam's Needle. Prom Carolina and Florida to Texas 

 and Mexico. An almost stemless species. It would hardly 

 be right, to omit here the plants of this genus altogether, as 



