PAPILI0MCEA1 



Baldy in the Santa Rita Mountains of Arizona. Usually, however, it 

 is an under shrub, exceedingly annoying to the one who wanders off 

 the mountain trail. Because of a horizontal root system and a ten- 

 dency to sprout, it has a distinct erosion control value. The 

 seeds are rather expensive to collect because the trees are too 

 thorny to climb, too tall to permit picking pods from the ground, 

 and after the pods are ripe striking them with a stock scatters the 

 seeds in all directions. The seeds and young plants are not dif- 

 ficult to handle in the nursery. The young plants furnish good 

 forage (not poisonous). The flower clusters are choice morsels, 

 being eaten raw oven by the Indians. Thornlcss forms of this spec- 

 ies probably exist, A report of any such form to the Nursery Sec- 

 tion will be greatly appreciated, 



*0 1neya to seta, Iron wood, should be considered along with the 

 pa lover do s. It is commonly said that where it grows Citrus fruit 

 will grow. It may well be considered the most noble tree of the 

 desert,- evergreen, symmetrical, long-lived, extremely drought resis- 

 tant. Its wood is dark, hard, very heavy and burns like a high- 

 grade coal. Normal years the beans are produced in abundance. 

 These have been used extensively for food by the Indians. 



*Parryclla filif olia. Dure Broom, This plant is common in 

 northern Arizona 1 and northern Hew Mexico in the dry sand-blown re- 

 gions. It is one of our best sand binders. Many of the plants in 

 which wo become interested prove useless because they do not respond 

 to nursery practice or the seed arc too expensive to collect. This 

 plant, however, produces seed in abundance. These germinate readily 

 and plants are easily produced even at Tucson which is 2,000 or 3,000 

 feet lower altitude than that in which the plant normally grows, 

 Vvhen plants ere taken up the small roots remaining promptly sprout. 



The Hopi Indians claim that they use a decoction of this 

 plant to drive out bed bugs. For this reason we had Br, Sievers of 

 the Food & Drug Office, United States Department of Agriculture, 

 test its insecticidal properties. It was learned that while it 

 had insecticidal properties, its value was low. It is highly pro- 

 bable that this plant and the related Paroselas contain oils which 

 may prove cf economic importance. Among the Paroselas rich in 

 oils and possibly dyes are Parosela scoparia, P, emoryi, P, johns oni , 

 and apinosa, 



Erythrina f label 1 if ormis , Western Coral Bean, Is a shrub or 

 occasionally a small tree with large heart-shaped grayish leaves, 

 abundant curved spines and long, scarlet flowers. It is confined 

 to warn canyons and foothills in our extreme southwestern ranges 

 hire extends far south into Mexico, Other members of this genus are 

 highly prized as ornamentals in the Tropics. This shrub is tender, 



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