422 



ZONES AND REGIONS [Pt. Ill, Sect. II 



an ornamental tree, is confined to a few valleys in South California. Of 

 tall-stemmed palms Sabal Palmetto (Fig. 242) (Florida to North Carolina) 

 is probably the single one that is common within its distributional area. 

 In company with it two or three dwarf palms (Sabal serrulata, S. Adan- 



FlG. 233. Aloe in a forest-landscape in Natal. From a photograph. 



soni) appear, and often form a dense thicket, as does Chamaerops 

 humilis on the Mediterranean coast. 



Tree-forms of Bambitseae appear in the temperate zones chiefly in Japan. 

 The other mesothermic Monocotyledones are almost without exception 



