THE GENOTYPICAL RESPONSE OF THE PLANT 259 
There are also additional smalF points of difference between the 
different biotypes, although they are immaterial in this discussion. 
Fig. 31. Atriplex sarcophyllum from the west coast; field no. 64. Procumbent form. 
; Pot 12 cm. high. 
They all differ from the praecox-type in having a procumbent or a 
prostrate mode of growth. In rare cases the main axis may be nearly 
erect (cf. field no. 
63) but the basal 
branches show in 
all cases a po- 
werful development 
as compared with 
the main axis. The 
thickness of the 
leaves is about the 
same as in the 
Sound-type. The Fig. 32. Atriplex sarcophyllum from the west coast; field 
no. 120. Prostrate form. Pot 12 cm. high. 
time of flowering is 
somewhat later than in the case of the longipes- and praecox-types. It 
falls in the latter part of June, sometimes as late as in the first 
part of July. 
Hereditas 111. ; 18 
