

FLOWERING PLANTS AND FERNS OF ARIZONA 765 



type from Flagstaff (MacDovgal 249). Southern Wyoming to 

 New Mexico and northern Arizona. 



11. Verbena hastata L., Sp. PL 20. 1753. 



Without definite locality (Palmer in 1869). Specimens collected 

 at Flagstaff (Coconino County) and near Prescott (Yavapai County ) 

 are cited by Miss Perry. Canada to Florida. New Mexico. Arizona, 

 and California. 



12. Verbena neomexicana (A. Gray) Small, Fl. Southeast. U. S. 1010. 



1903. 



Verbena canescens H. B. K. var. neomexicana A. Grav. Svn. Fl. 



2 l : 337. 1878. 



Yavapai County to Cochise, Santa Cruz, and Pima Counties. 2.000 

 to 6.000 feet, foothills and canyons, common. March to October. 

 Western Texas to southern California and northern Mexico. 



The Arizona form is var. xylopoda Perry, which has larger flowers 

 than the typical form of the species. The species is doubtfully distinct 

 from V. me nthae folia Benin. A collection near Yuma (Jones in 1906), 

 cited by Miss Perry under the latter species, greatly resembles V. 

 neomexicana. 



2. LANTANA 



A shrub, usually prickly; leaves petioled. the blades broadly ovate, 

 crenate; flowers in dense headlike axillary clusters, these subtended 

 by several narrow bracts.: fruit a fleshy drupe, black and shiny when 

 mature. 



1. Lantana camara L.. Sp. PL 627. 1753. 



Near Sells (western Pima County), about 2.500 feet, bank of a 

 stream, August. Georgia to southern Texas, southern Arizona. Mex- 

 ico, and widely distributed in tropical America. 



It is unlikely that the plants at this Arizona locality were intro- 

 duced by man. but the seeds may have been brought there by mi- 

 grating birds. The plant contains an alkaloid that is reported to 

 resemble quinine in its action. 



3. LIPPIA 



Plants perennial, shrubby or herbaceous; flowers in slender elongate 

 spikes, these forming open terminal panicles, or in short, dense, pe- 

 duncled axillary heads; calyx 2- to 4-cleft: corolla with a cylindric 

 tube and a somewhat bilabiate limb; nutlets 2. 



L. ligustrina and L. wrightii are neat and graceful shrubs with aro- 

 matic foliage, responding well to cultivation. They afford browse for 

 livestock, and the flowers are reported to yield excellent honey. L. 

 cuneifolia and L. lanceolata are efficient soil binders but are nowhere 

 abundant in Arizona. An introduced species of similar habit is some- 

 times used for lawns. 



Key to the species 



1. Plants shrubby, aromatic; leaf blades scabrous-strigose above, tomentose or 

 tomentulose beneath; flowers in slender spikes or spikelike racemes, these 

 more than 4 times as long as wide and forming loose leafy panicles; bracts 

 narrow, not closely subtending the flowers; calyx conspicuously villous- 

 hirsute: Subgenus Aloysia (2). 



