FLOWERING PLANTS AND FERNS OF ARIZONA 701 



3. Lithospermum multiflorum Ton*, ex A. Gray, Amer. Acad. Arts 



and Sci. Proc. 10: 51. 1875. 



Lithospermum arizonicum Gandoger, Soc. Bot. France Bui. 65: 

 62. 1918. 



Apache County to Coconino County, south to Pima County. 6.000 

 to 8,200 feet, gravelly benches and slopes, mostly in the juniper and 

 pine belts, type of L. arizonicum from Flagstaff (MacDougal 242). 

 Wyoming to New Mexico and Arizona. 



12. MACROMERIA 



Coarse bristly perennials with elongate, hairy, greenish yellow corollas 

 and more or less acute corolla lobes; plants of thickets and woodlands. 



It is stated that the dried leaves and flowers, mixed with tobacco, 

 are smoked by the Hopi Indians in their " rain-bringing" ceremony. 



1. Macromeria thurberi (A. Grav) Mackenz., Torrev Bot. Club Bui. 

 32: 496. 1905. 



Onosrnodium thurberi A. Gray, Syn. Fl. 2 1 : 205. 1878. 



Mountains of Apache, Coconino, Greenlee, Cochise, and Pima 

 Counties, 6,000 to 8.500 feet, rocky slopes and valleys, in pine woods. 

 New Mexico. Arizona, and northern Mexico. 



This species may have an earlier name in M. viridijlora DC a 

 species based on an illustration of a plant collected somewhere in 

 Mexico. 



107. VERBEXACEAE. Vervain family 



Herbs or shrubs; stems often 4-angled; leaves opposite or whorled; 

 flowers perfect, in spikes or heads; calyx commonly 5-toothed or 5- 

 lobed; corolla usually slightly 2-lipped; fruit of 2 to 4 nutlets, these 

 separating at maturity, or a drupe containing 1 stone. 



The best-known members of this family are the garden verbena, 

 derived from hybrids among several South American species of Ver- 

 bena, and the lemon-verbena (Lippia triphyUa, L. cUriodora) , also a 

 native of South America. Species of Lantana and Vitex are exten- 

 sively planted as ornamental shrubs in the warmer parts of the United 

 States. 



Key to the genera 



1. Fruit a fleshy drupe containing 1 stone; plant shrubby; corolla orange or yel- 

 low, turning bright red 2. Lantana. 



1. Fruit of 2 or more dry nutlets, these separating,at maturity; plants herbaceous 

 or shrubby; corolla never orange, yellow, or bright red (2). 

 2. Calyx short, more or less campanulate, with 2 to 4 teeth or lobes; nutlets 2; 



plants perennial, herbaceous or shrubby 3. Lippia. 



2. Calyx elongate, cylindric, 5-toothed and o-ribbed (3). 



3. Nutlets 4, these at maturity shorter than the calyx, not beaked. 



1. Verbena. 



3. Nutlets 2, these at maturity usually equaling or surpassing the calyx, 



with a short stout beak 4. Bouchea. 



