FLOWERING PLANTS AND FERNS OF ARIZONA 523 



puberulent sepals. The var. intricate, Eastw., represented by Turner's 

 collection, has herbage with incurved or reflexed matted hairs, and 

 glabrous sepals. 



13. Polygala glochidiata H. B. K., Nov. Gen. et Sp. 5: 400. 1823. 

 Mule Mountains, Cochise County (Goodding in 1939), southern 



slopes of the Santa Rita Mountains. Pima County {Goodding in 1937), 

 November. Southern Arizona, Mexico, and widely distributed in 

 tropical America. 



14. Polygala alba Nutt., Gen. PL 2: 87. 1818. 



Near Winslow and Snowflake (Navajo County), Grand Canyon 

 (Coconino County), also Cochise and Santa Cruz Counties (probably 

 more widely distributed in Arizona), 5,000 to 7,000 feet, May to 

 September/ Dakotas to Washington, south to southern Mexico. 



The var. suspecta Wats., with most of the leaves whorled (only the 

 lowest whorled in the typical form), has been collected in the Hua- 

 chuca Mountains (Jones in 1903). 



15. Polygala hemipterocarpa A. Gray, PL Wright. 2: 31. 1853. 

 Cochise, Santa Cruz, and Pima Counties, 4.000 to 5,000 feet, grassy 



or stony slopes, type from " along the Sonoita," (Cochise? County) . 

 Texas to southern Arizona and Mexico. 



16. Polvgala scoparioides Chodat, Soc. Phvs. Hist. Xat. Geneve 



" Mem. 31 -': 284. 1893. 

 Yavapai. Gila, Cochise, and Pima Counties, 3,500 to 5.000 feet, 

 rocky mesas and slopes, May and June, type from the Santa Rita 

 Mountains (Pringle in 1884). Western Texas to Arizona and northern 

 Mexico. 



2. MONINNA 



Plant annual; stems slender, leafy, erect, few-branched; herbage 

 minutely puberulent; leaves short-petioled, the blades lanceolate, 

 acuminate; flowers very small, in narrow terminal racemes; corolla 

 pale blue. 



1. Moninna wrightii A. Gray, PL Wright, 2: 31. 1853. 



Southern Apache (or Navajo), Cochise, Santa Cruz, and Pima 

 Counties, 4,000 to 6.500 feet, sometimes growing on limestone with 

 Ceanothus, September and October. New Mexico, Arizona, and 

 northern Mexico. 



64. EUPHORBIACEAE. Spurge family 



Contributed by Louis C. Wheeler 



Herbs, shrubs, or trees, often with milky juice; leaves alternate, 

 opposite, or whorled, simple or rarely compound; stipules present or 

 absent ; flowers unisexual; calyx and corolla present or absent ; stamens 

 1 to indefinitely numerous; ovary superior, mostly 3-celled, sometimes 

 1- to 4-celled; ovules pendulous, 1 or 2 per cell; styles as many as the 

 cells, distinct or partially connate, often divided; fruit capsular, the 

 carpels usually dehiscent by 2 elastic valves, sometimes tardily de- 

 hiscent or even indehiscent ; seeds carunculate or ecarunculate, the 

 testa crustaceous, the endosperm copious, oily, the embryo straight or 

 curved. 



