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Muhlenbergia, Volume 7 



ous as is also the calyx, the lower lip of which is 7 mm. long, 

 5 mm. wide when spread out, the apex barely acutish, appar- 

 ently minutely 3-toothed; upper lip nearly orbicular when spread 

 out, 5 mm. across, with a broad notch at the apex; both lips 

 concave in nature, especially the upper, which is saccate at the 

 base; a small bractlet less than 2 mm. long on the calyx below 

 the sinus: corollas i cm, long, 8 mm. deep, distance between 

 apices of banner and wings 2 mm. or less: banner appearing as 

 if a little shorter than the wings, face narrow, less than 2 mm., 

 deeply grooved, 5 mm. long, edges turned back and meeting, 

 somewhat inrolled, a short keel-like point on the back at the 

 apex, the base deeply concave within but not spurred; wings 

 7 mm. deep across the middle, thence obliquely sloping to both 

 base and apex, the latter blunt and rounded, 3 mm. across, edges 

 closed dorsally, the keel exposed only at its apex, ventral edges 

 also apparently meeting; keel glabrous, falcate, rather stout at 

 the apex, 5 mm. deep across the middle: pods and seeds un- 

 known. 



Figure 14. Floral parts of Lupinus oreganus, enlarged 



The type, in the herbarium of the Nevada Agricultural 

 Experiment Station, is Heller 10044^ collected May 18, 1910, 

 at Eugene, Lane county, Oregon.' The exact station is on the 

 railroad a short distance south of the town near a switch or 

 junction, where the species was growing abundantly on an em- 

 bankment. It was at first referred to L. viuc7'ovnIatus Howell, 



