162 SMITH: STUDIES IN THE GENUS LuUPINUS—VIII 
spathulatis,”” and Dr. Jepson has annotated the University of 
California sheet of Heller’s 6571, from near Monterey, thus: 
“Leaves like leaves in L. nanus type, but a trifle larger. W. 
L. J., Kew, 1906.” The leaflets in this specimen are spatulate 
or nearly so. However, Miss Eastwood’s photo marked, 
“Lupinus nanus, ex Herb. Benth.”’, shows slender plants with 
leaflets oblanceolate and linear-oblanceolate, thus agreeing with 
Agardh’s characterization of L. nanus where he says, “‘foliola 
lanceolato-linearis.’’ Then Agardh attributed to his 
L. affinis, “foliolis 7 obovatis;’’ but Miss Eastwood’s photos, 
which are marked ‘‘Lupinus affinis Agardh, ex Herb. Lindl.,”’ 
plainly show plants of L. manus, one collected by Douglas, with 
spatulate leaflets, and two, one each by Hartweg and Douglas, 
with linear oblanceolate leaflets. Further, my study of many 
sheets of more recent specimens, together with considerable 
field experience with these variations and also with even greater 
extremes, has convinced me that it is certainly impracticable, if 
not quite impossible, to maintain a distinction between 
nanus and L. affinis. I might also add that “‘caule - 
patenter pilose” and “foliolis . . . utrinque wiihectenibus, se 
said of L. affinis, apply to L. nanus and not to the L. succulentus 
Dougl., known, since Watson’s time, as L. affinis Agardh. 
Nevertheless L. nanus, as I understand it, includes a few 
recognizable varieties which will be indicated after citing a 
representative selection from the more than one hundred sheets 
I have referred to the species, sensu strictiore. 
CALIFORNIA: Alameda County: Berkeley, April, 1898, J. B. 
Davy (UC.); Oakland, March, 1864, W. H. Brewer 2775 (CA, 
UC); same, July, 1901, H. A. Walker 662 (BP). Butte County: 
Chico, April, By log A. A. Heller 11311 (CA, DS); De Sable, 
June, 1917, Helen M. Edwards (DS); Oroville, March, 1913, 
A.A. Heller 10685 (CPS, DS). Calaveras County: Mokelumne 
Hill, F. E. Blaisdell (CA). Contra Costa County: Point 
Isabel, April, 1897, J. B. Davy (UC). Lake County: Lower 
Lake, May, 1902, Agnes M. Bowman 255 (DS); Weldon Valley, 
April, 1902, Agnes M. Bowman 222 (DS). Marin County: 
Ignacio, April, 1918, L. R. Abrams 6896 (DS); Kentfield, May, 
1912, A. Eastwood 11 (CA); Lagunitas, April, 1918, F. Grinnell, 
Jr. (DS); Olema, April, 1886, E. L. Greene (UC 196349); Point 
Reyes, May, 1906, A. Eastwood (CA); Sausalito, June, 1912, A. 
