Apr. 12,1924 Vegetation in the Semiarid Portion of the United States 123 
Type Regions 
(84) Desert-sage ( Atriplex poly car pa) _ _ 15 , 
(85) Yucca desert grass._ g 
( 86 ) Black brush ( Flourensia cermia) _ g, 
(87) Black brush grass__ g 
( 88 ) Nolina ( Nolina microcar pa) _ g 
(89) Shinnery ( Quercus havardii) _ 2 
(90) Willow (Salix species)- 3 , 4 , 7 , 10 , n, 12 , 13 
(91) Mountain brush_ 3 jq, 
(92) Mountain mahogany ( Cercocarpus parvifolius )_ 3 7 
(93) Chaparral ( Ceanothus velutinus) _ 3 4 11 
(94) Manzanita—brush type_ \2 14 
(95) Southwest mountain brush_ 7 g. 
(96) Oak brush__ 7 * g 
(97) Chamise {A denostoma fasciculatum) _ 14 
(98) Ceanothus cuneatus _ _H 12 14 
(99) California mixed brush type__ H 12 14 
( 100 ) Aspen (Populus tremuloides) _ 13 4 7 
( 101 ) Woodland timber- 1 , 2 , 3 , 6 , 7 , 8 , 9 , lo[ 11 , 14 
( 102 ) Conifer timber- 1 , 2 , 3 , 4 , 5 , 7 , 8 , 10 , 11 , 12 , 14 
