THE AMERICAN BOTANIST 5 



attractisc little colonics. Oenothera c/lauea x.'ir. rrase' i ((). 

 /•luiseri of the cataloj^jues ) i> niiicli like it in si^e and shape 

 I)nt (loo not turn pink willi a,iL;e. It is, niorcoxcr. a bad weed 

 in sonic .gardens, ^preatlini^ so ra|)idl\' 1)\' nndcr.Ljronntl run- 

 ners that it nia\- ca>il\- become a pest. It should be plantetl 

 onl\- in places where its spreadini;" cannot crowd ni<ire desira- 

 ble plants. The Navajo primrose {(). Clittei) is anion,<;- the 

 tinest of tlio>e that open in the early e\ening\ The flowers 

 are often more than four inches across, of a clear sulphur 

 yellow and borne in great profusion. 



l'.\C HVLOl'H L'S 



Related to the evening primroses, and often classed with 

 them, are certain plants often placed in the genus I\icliyl()- 

 plnis. These are acaiilescent plants with rosettes of tothed 

 lea\es. resembling those of the daiulelion. from the center (»f 

 which s])ring several pure wliiie Howers more than :-ix inches 

 long and three wide. These open in the early evening and 

 by the next morning have turned [)ink. After the plant be- 



