348 



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'-i' broad, leaflets 7-1 1 (commonly about 8), oblan- 

 ceolate, sessile or nearly so, obtuse and mucronate at 

 the apex, i'-i4' long, 3"-6" wide, appressed-pubescent 

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

 rather loosely flowered; pedicels z'-&' long; flowers 

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

 linear-oblong, very pubescent, is' 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. glabralus S. Wats. 



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



glabratus Agardh. 1835. 

 Lupinus platiensis S. Wats. Proc. Am. 



Acad. 17 : 369. 1882. 



Resembling the preceding species, per- 

 ennial, l°-iJ° 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"-s" long; corolla blue, 6"-8" 

 long, the standard with a conspicuous 

 dark spot. 



Plains, NelDraska, Wyoming, Colorado. 

 Recorded from Dakota. June-July. 



3. Lupinus decumbens Torr. 

 Fig. 2463. 



Silvery Lupine. 



Lupiuiis 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 tjhe upper side. Petioles 

 slender, equalling or the lower exceeding the leaves; 

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

 acute or obtnsish at the apex, narrowed at the base, g"- 

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

 2'-8' long ; pedicels 2"-3" long ; flowers purple, 4"-6" 

 long; pod silky-pubescent, about i' long, mostly 3-5- 

 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) Cockerel!, of Colorado 

 and New Mexico, differing in having leaves permanently 

 pubescent above, is recorded from Nebraska. 



