February 7, 191 1 



by the fact that it was the only form found over a large extent 

 of territory, ranging from the upper Willamette valley to the 

 banks of the Columbia, and up that stream to the eastern flank 

 of the Cascade mountains. 



Figure i. Floral parts of Lupinus micranthiis, enlarged. 



As Professor C. P. Smith has recently affirmed, his study 

 based upon my Hood River specimens, the nearest relative of 

 micra}itluts is L. polycarpiis Greene, and Douglas' specimen from 

 California cited by Agardh, if it really is from California, is in 

 all probability L. polycarpus. Douglas had not yet collected in 

 California when L. micraiithus was published, having penetrated 

 southward only as far as the headwaters of the Willamette. 

 The latter part of the sentence describing its habitat "in barren 

 ground in the interior of California," seems best applicable to 

 eastern Oregon or Washington, but it may refer to the upper 

 Willamette region. Were the date of collection or observation 

 given, the place could easily be fixed. If micranthiis is found 

 at all in California, it will no doubt be as an introduction and 

 not as a native. 



The flowers are described as sessile, though Lindley in his 

 explanat(jry remarks says "nearly sessile," and this is correct, for 

 thcy^ha\c quite short pedicels, 2 mm. or less. They turn pale 

 in drying, as do also the ?io\\^\^oi polycarpus. The lower calyx 



