142 BOTANICAL 
Western N. Amerfca 
§ NAVARRETIA. 
Gilia intertexta, plains of Columbia 
river to California and the Rocky 
mountains - - - -= 
Gilia minima, of arid portions of in- 
terior of Oregon and Nevada to 
Colorado and Dakota” - - = 
§ DacTYLOPHYLLUM. 
Gilia pusilia, Guadaloupe island, and 
var. Californica, Sacramento to 
Nevada, -_ - - - — 
COLLOMIA. 
Collomia linearis Nutt., Saskatcha- 
wan, Oregon, Washington, and 
Utah, - - - - See 
Collomia grandiflora Dougl., similar 
to preceding, plains from Rocky 
mountains to California and Ne- 
vada. 
Collomia gracilis, Alaska to Chili. 
POLEMONIUM. 
Polemonium micranthum - -= 
In the preceding tabulation 
GAZETTE [ AUGUST 
Chili 
Gilia fetida, distinct Chilian species. 
Gilia glabrata and G. ramosissima 
are Chilian species of common 
Eugilia type. 
G. involucrata (incl. G. Navarretia 
Steud., and G. eryngioides Lehm.). 
dwarf forms of G. imvolucrata in 
Chili. 
G. pusilla, in Chili. 
Collomia coccinea Lehm., Peru, Bo- 
livia and Chili. 
P. antarcticum. 
the more extreme xerophytic 
species do not appear, because it is only the mountain species 
which have the extended distribution, and among which, ae 
fore, the same or closely related species occur in both Chili an 
western North America. The 
method of distribution 1s of 
interest here. Commonly in the Polemoniacee the seed is ‘fur- 
nished with a layer of cells whose walls become mucilaginous by 
contact with water, expelling forcibly the spirally thickened 
hair- 
like processes which cause the seed to adhere firmly to moistened 
