10 



1887, U. S.). Specimens of the variety with leaves large enough to 

 be considered almost but not clearly transitional are the following : 

 Baboquivari Mountains, Arizona, Peebles, Harrison & Kearney 

 2795, U. S.; Rio de los vueltos, Mexico (state not given), Lieh- 

 mann 11993, U. S.; Eulalia Plains, Chihuahua, Wilkinson in 1885. 

 U.S. 



Haplophyton cimicidum is known as "hierba de la cucaracha" 

 or cockroach plant, and the vegetative parts contain an insecticide 

 used with cornmeal to kill cockroaches. 



2. Triodia eragrostoides in Arizona 



Triodia eragrostoides Vasey & Scribn. is one of many species 

 growing in northern Mexico, which occur in Arizona and Texas 

 but not in the intervening area in New Mexico. It has not been 

 reported heretofore for Arizona. Mesquites along a small wash at 

 the Barbeque Area of the Colossal Cave State Park, Pima County, 

 Arizona, L. Benson 9174, Sept. 28, 1938, L. Benson 9801, Oct. 9, 

 1939. Range, cf. A. S. Hitchcock, Manual of the Grasses of the 

 United States 213. 1935, "Florida Keys, Texas, and northern 

 Mexico; Cuba," or, cf. W. J. Beal, Grasses of North America 

 2:465. 1896, "Florida, Texas, and Mexico." 



3. The California Poppy in Arizona 



The California poppy, Eschscholtsia calijornica Cham, presents 

 a classification problem to the systematic botanist, wherever he may 

 find it, and it is not surprising that the plant occurring on the desert 

 plains and hills in central and southern Arizona is unusual in some 

 respects. It is difficult to discover enough characters in the California 

 poppy to match the hundred or so specific names proposed by 

 Greene, Pittonia 5:205-293. 1905, but the species is variable in 

 California. The annual form growing in Arizona is readily matched 

 by some California plants, but it does not agree in some characters 

 with the bulk of plants in that state. The torus rim is either not 

 present or reduced to a ring not more than 2 mm. broad, the stems 

 have a tendency to be scapose, and most years the flowers are smaller 

 and paler. However, the excellent rainy spring of 1941 afforded an 

 opportunity for study of the Arizona plant under conditions ap- 

 proximating those in various parts of California. According to the 

 field observations of the writer, there is no reason to provide the 



