Volume 6 January 20, 191 r 



MUHLENBERGIA 



NOTES UPON SOME ANNUAL LUPINES OF THE 

 MICRANTHUS GROUP 



By C. P. Smith 



During four years of residence in western middle Califor- 

 nia, perhaps no genus of plants appealed to me as much as did 

 the lupines, and the more I observed them and referred to the 

 available literature, the more I was dissatisfied with my earlier 

 determinations and the usual recognition of specific limits. 

 Hence during my fourth and last season there, practically all of 

 the time and energy I could spare for botanical study was con- 

 centrated upon these plants, and of these the small annuals of 

 the Micranthus group received the most intensive study. 



While most of my observations were made about Stanford 

 University, one trip was made into Sonoma county, and two 

 trips were taken to Ocean view, Col ma, and South San Fran- 

 cisco. Material was secured also at Pacific Grove and in Hall's 

 Valley, thru which passes the Mt. Hamilton stage road from 

 San Jose. Thus it is apparent that only a beginning was made 

 in the study of the forms under consideration; but since there is 

 no probability that I will, in the near future, be able to continue 

 the study in the field, I have thot it best to offer certain of my 

 conclusions and drawings now, hoping that the same may be of 

 interest to other observers of these plants. The drawings were 

 made from hand from fresh material, except as noted below, 

 being drawn to about the same scale and with regard to a care- 

 ful comparison of detail, in each case average blossoms being 

 selected from abundance of material. The side and front views 

 of the blossoms were drawn first, then the lower and upper calyx 

 lips, each as seen in situ in the undissected flower. In the case 



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