Nelson : New Plants from Wyoming 127 



subacute from oblong below to narrowly lanceolate above, the 

 lower comparatively large (4-6 cm. long), diminishmg upward : 

 raceme closely corymbose during anthesis : sepals oblong-spatu- 

 late slightly hooded at the tip, tinged with purple, about 4 mm. 

 lonc^ • petals white or purplish, fully twice the length of the sepals, 

 claw narrow, the limb obovate with a rounded or nearly truncate 

 summit : pod nearly erect, subtcrcte, slightly narrowed mto a short, 

 stipe-like base, 20-30 mm. long : style short but evident : pedi- 

 cels ascending, 8-12 mm. long. 



During the past few years specimens have been accumulated 

 that have^been doubtfully called T. mgittatum Endl. but two re- 

 cent collections make it quite evident that this Thdcpodium of 



southern Wyoming is distinct. 



It seems to prefer moist ground among the sage brush on 

 low lands adjacent to streams. Type specimen, no. 4673, Fossil, 

 Uinta Co., where it is common on Twin Creek bottoms, June 12, 



1898. 



Lupinus alpestris 



Perennial from stout, deep set roots : caudex woody, branched, 

 producing one or more stems from each crown : stems annual but 

 the subligneous bases often persistent, only moderately stout, 

 nearly erect, 4-6 dm. high, striate, very short pubescent, simple, 

 or coiymboscly branched : leaflets 5-9, mostly 7, from narrowly 

 oblong to spatulate or oblanceolate, narrowed or cuneate at base, 

 apex obtuse and usually cusped, very variable in length (2-7 cm.), 

 minutely appressed-pubescent, sometimes nearly glabrous above 

 whole plant appearing nearly green and smooth to the unaided 

 eye • lower petioles much longer than the leaflets, gradually shorter 

 upward so that the uppermost do not equal the leaflets : racemes 

 terminal on the main stem and branches, at length rather loosely 

 verticillately flowered : calyx but slightly saccate at base, si ky- 

 viUous as are the pedicels ; pedicels shorter than the small to 

 medium sized flowers : corolla blue or light blue, the keel purple- 

 tipped, standard about' 10 mm. long: pod silky-hirsute, 2-3 

 long when mature, about 8 mm. broad, 5-ovuled, usually fewer 

 seeded : seeds very flat, oval, 4 mm. long. 



For the past three or four years this plant has been tentatively 

 held as L. Sitgrcavcsii Wats. Opportunity, the present year, of 

 examining authentic specimens has shown this plant to be quite dis- 

 tinct from that. L. Sitgrcavcsii is a coarser plant, hirsute-pubescent, 

 flowers larger, leaflets and ovules usually more numerous; its 



cm. 



tt 



