FABACEAE. 



VOL. II. 



i. Lupinus perennis L. Wild or Perennial 

 Lupine. Wild Pea. Fig. 2461. 



Lupinus perennis L. Sp. PI. 721. 1753. 

 Lupinus perennis occidcntalis S. Wats. Proc. Am. Acad. 

 8: 530. 1873. 



Perennial, erect, more or less pubescent, sometimes 

 villous, branched, i-2 high. Leaves slender-petioled, 

 2'-3' broad, leaflets 7-11 (commonly about 8), oblan- 

 ceolate, sessile or nearly so, obtuse and mucronate at 

 the apex, i'-ij' long, 3"-6" wide, appressed-pubescent 

 or glabrate ; raceme terminal, peduncled, 6'-io' long, 

 rather loosely flowered ; pedicels 3 "-6" long ; flowers 

 blue, sometimes pink, or white, 6"-8" long; pod 

 linear-oblong, very pubescent, I*' long, 4" wide, usu- 

 ally 4-6-seeded, the valves coiling at dehiscence; 

 style subulate. 



In dry, sandy soil, Maine and Ontario to Minnesota, 

 Florida, Missouri and Louisiana. Old maid's- or Quaker- 

 bonnets. Sun-dial. May-June. 



2. Lupinus plattensis S. Wats. 

 Nebraska Lupine. Fig. 2462. 



Lupinus ornatus var. glabratus S. Wats. 



Proc. Am. Acad. 8: 528. 1873. Not L. 



glabratus Agardh. 1835. 

 Lupinus plattensis S. Wats. Proc. Am. 



Acad. 17 : 369. 1882. 



Resembling the preceding species, per- 

 ennial, i-ii high, branching, villous 

 or appressed-pubescent, the living plant 

 with a glaucous appearance ; leaflets 

 7-10, oblanceolate, spatulate or narrowly 

 oval, i'-ii' long, 3"-s" wide; raceme 

 terminal, 4'-8' long, loosely flowered ; 

 pedicels 3"~5" long; corolla blue, 6"-8" 

 long, the standard with a conspicuous 

 dark spot. 



Plains, Nebraska, Wyoming, Colorado. 

 Recorded from Dakota. June-July. 



Lupinus decumbens Torr. 

 Fig. 2463. 



Silvery Lupine. 



Lupinus decumbens Torr. Ann. Lye. N. Y. 2 : 191. 1826. 



Perennial, rather shrubby, bushy-branched, i-2 high, 

 finely and densely silky-pubescent with appressed hairs, 

 the leaves becoming glabrous on the upper side. Petioles 

 slender, equalling or the lower exceeding the leaves ; 

 stipules minute, subulate ; leaflets sessile, linear-oblong, 

 acute or obtusish at the apex, narrowed at the base, 9"- 

 18" long, 2"-4" wide ; racemes terminal, rather dense, 

 2 r -S' long ; pedicels 2"-$" long ; flowers purple, 4"-6" 

 long; pod silky-pubescent, about i' long, mostly 35- 

 seeded. 



Prairies, western Nebraska and South Dakota to Mon- 

 tana, Oregon and California. In our first edition included 

 in L. argenteus Pursh, which ranges from Montana to Colo- 

 rado. July-Aug. 



Lupinus argophyllus (A. Gray) Cockerell, of Colorado 

 and New Mexico, differing in having kaves permanently 

 pubescent above, is recorded from Nebraska. 



