11 



Arizona plant with a name other than Eschscholtsia californica, and 

 specific names such as E. mexicana Greene, E. allena Greene, E. 

 Jonesii Greene, E. arisonica Greene, and E. paupercula Greene 

 (cf. Greene loc. cit. pp. 260-263) are merely metanyms. 



It is noteworthy that flower color is more variable than in the 

 California forms of the species. In the poppy fields near Tucson 

 colors included orange, yellow with orange center, white with yellow 

 center, white, and numerous variations in color intensity within the 

 major groups. Similar color-types occur in California, but those 

 other than orange or orange-yellow are uncommon in the spring- 

 time, while in Arizona they are remarkably prominent. 



Department of Botany 

 University of Arizona 

 Tucson, Arizona 



The Names of Gornus 



H. W. RiCKETT 



So early as 1833 Lindley, in founding his genus Benthamia 

 (Bot. Reg. 19: 1579 et seq.), remarked "We do not understand 

 upon what principle this very distinct genus has been combined 

 with Cornus, from which it differs essentially both in flower and 

 fruit. Whether or not C. florida, which agrees with it in habit, is 

 also a species of Benthamia, our materials do not enable us to de- 

 termine." In 1828 Rafinesque (Med. Bot. 132) had distinguished 

 C. florida as section Cynoxylon, which in 1838 he elevated to ge- 

 neric rank (Alsog. Am. 59). This early tendency to divide the 

 genus has continued, with varying success, until modern times. 

 For instance, Moldenke (Rev. Sudani. Bot. 6: 177. 1940) says: 

 "There is certainly no doubt in my mind that the genus Cornus as 

 regarded by many botanists today is actually an aggregate of several 

 distinct generic elements. The true genus Cornus is typified by 

 Cornus mas L. and contains the so-called Cornelian-cherries. The 

 cornels or osiers represent the genus Svida, the bunchberries repre- 

 sent the genus Chamaepericylmenum, the American flowering- 

 dogwoods represent the genus Benthamidia, and the Asiatic 

 flowering-dogwoods with their coalesced fruit represent the genus 

 Benthamia." 



