78 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Bumelia schottii, see Bumelia spiniflora. 



Bumelia spiniflora DC. Saffron-plum. 



B. angustifolia Nutt., B. schottii Britt. 

 Range: 17, 31, 32. 

 Site: Well-drained, sun. 

 Fruit: Drupe, available April-May. 



A large shrub to a small or rarely large tree ; evergreen ; flowers November- 

 January ; propagated by seed. 



Bumelia tenax Willd. Tough huckthorn. 



Range : 29, 30, 31, 32. 



Site: Dry, well-drained, sun. 



Fruit: Drupe, available September-November. 



Most commonly a small to large shrub ; sometimes a small to large tree ; 

 evergreen southward ; flowers May-July ; spiny or unarmed ; may occur on 

 sand. 



Bumelia texana Buckl. 

 Range: 16, 17. 

 Site : Dry, sun. 

 Fruit: Drupe. 

 A large shrub to small tree ; evergreen ; branches rigid and thorny. 



Buphthalmium frutescens, see Borrichia frutescens. 

 Bursera lonchophylla, see Bursera odorata. 



Bursera odorata Brandeg. 



B. lonchophylla Sprague and Riley, B. tenuifolia Rose, B. purpusii Brandeg., 

 Elaphrium covillei Rose, E. confusum Rose, E. brachypodum Rose, E. 

 odoratum (Brandeg.) Rose. 



Range: 10. 



Site : Dry, well-drained, sun. 

 Fruit : Drupe, resembling a capsule. 

 A small tree ; usually occurs on calcareous soil. 



Bursera microphylla Gray. Elephant tree. 



Elaphrium microphyllum (Gray) Rose. 

 Range: 5, 10. 

 Site : Dry, sun. 



Fruit : Drupe ; resembling a capsule, available in October. 

 A large shrub to small or large tree ; flowers in June. 



Butneria fertilis, see Calycanthus fertilis. 

 Butneria florida, see Calycanthus florida. 

 Butneria mohri, see Calycanthus mohri. 

 Butneria nana, see Calycanthus fertilis. 

 Butneria occidentalis, see Calycanthus occidentalis. 

 Buxella brachycera, see Oaylussacia brachycera. 

 Buxus chinensis, see Simmondsia chinensis. 

 Calliandra chamaedrys, see Calliandra eriophylla. 

 Calliandra conferta, see Calliandra eriophylla. 



Calliandra eriophylla Benth. False-mesquite. 



C. chamaedrys Engelm., C. conferta Benth., Anneslia eriophylla (Benth.) 

 Britt. 



Range : 10, 11, 16, 17. 

 Site: Dry, sun. 



Fruit : Legume, available May-August. 



A small, somewhat prostrate, densely-branched shrub ; occurs on sandy and 

 other soils ; flowers March-May ; seed germination 64 percent. 



Stomach records: Masked bob white, bobwhite, antelope jack rabbit. Obser- 

 vations: Gambel, scaled, and Mearn's quail. Highly palatable to livestock. 



