OLEACEAE 



It should be noro extensively planted as a street ornamental as it 

 has showy fragrant flowers Mid small glossy green leaves. It is to 

 bo found only in isolated spots in New Ilcxico and Arizona and west- 

 ern Texas. 



Fra xinu s -groggii, Gregg Ash, occur in Texas and Arizona, 

 It is a small handsome tree or tall shrub which grows on very arid 

 sites on rocky slopes, not along streams. Its value is probably as 

 an ornamental only though it may bo of some use in erosion control 

 and it may be browsed to some extent. 



In New Mexico much of the ash for ornamental purposes has 

 apparently been supplied by nurseries in the mid-west, the most 

 common one being Fr axinus lane colata, 



Fraxinus lowellii, Lowell Ash, is closely related to F, 

 anomala, lbs range is further south in Arizona. It grows on steep, 

 dry, usually north-facing slopes. The trees are somewhat larger 

 than F, ano ma la , and there are three leaflets coram only to the leaf. 

 The seeds and general aspect of the tree arc similar to F. a noma la 

 but it usually forms dense thickets of small size. 



Fraxinus s tandi oyi , Standi oy Ash, is one of the common native 

 ashes of large size of Arizona but apparently it is not usually 

 cultivated. 



In our erosion control work we arc more concerned at present 

 with the small ashes which are fair erosion control plants and which 

 supply considerable forage. With all of these our experience is 

 limited. 



Fraxinus tourney i , Tourney Ash, is our most outstanding large 

 ash and ThT one most commonly used for shado ana street planting in 

 s ou th era Ar i z o na . 



GERTIANACEAE 



E u stoma rus sol liana is a perennial herb closely resembling 

 the gentians, -in fact it belongs to the gentian family. It is ' 

 widely distributed from Nebraska and Colorado to Hew Mexico, 

 Louisiana and Mexico, In our range, however, it is rare, being 

 confined to alkali soil such as regions adjoining the V.hite Sands 

 and the Bottomless Lakes in Lew Ilex ice. It is valueless for ero- 

 sion control and forage but is a very handsome flowering plant 

 suitable for flower gardens, 



F rasera spocicsa , sometimes called Deer's Lars, is widespread 

 in the west at comparatively high altitudes. It has large, basal 



