OF ARTS AND SCIENCES. 6 



nanoe, casspitoso-depressae. — § Physocarpce, Gray, Proc. Am. Acad, 

 vi. 234. 



5. O. PODOCARPA, Gray, 1. c. Villosa, mox glabrescens ; folioHs 

 5-11-jugis liueari-lauceolatis (lin. 3-4-longis) ; pedunculis folia baud 

 superautibus bifloris ; floribus majusculis (liu. 7-8 longis) ; corolla vio- 

 lacea ; legumine amplo (sicpius pollicem longo) lato-ovato puberulo 

 brevi-stipitato, sutura ventral! intrusa. — 0. arctica,vai\ injlata, Hook, 

 Fl. Bor.-Am. i. 146. 0. Ballii, Bunge, Oxytr. 162, described from a 

 specimen barely in flower, appears to be of tliis species. — Alpine and 

 subalpiue in tbe Rocky Mountains, from S. Colorado (./. 31. Coulter, 

 Greene, Brandegee, Hall S)- Harbour, &c.) to Britisli America {Drum- 

 moncl, Burke, Bourgeau, Macoun) ; and from Labrador to tlie Aleutian 

 Islands ; but specimens from tbe latter not in fruit, therefore uncertain. 

 The stipe of the legume is variable, sometimes very short, perhaps 

 never quite equalling the calyx. 



6. 0. OUEOPHILA. Sericeo-canescens ; foliolis 3-5-jugis lanceolatis 

 oblongisve (lin. 2-4 longis) ; scapis folia plerumque superautibus capi- 

 tato-4-8-floris ; floribus parvulis (lin. 4-5-longis) ; corolla ut videtur 

 purpurea ; legumine baud stipitato oblongo-ovato griseo-pubescente vix 

 semipollicari, sutura ventrali subintrusa. — Mountains of Utah (Aqua- 

 rius Plateau at nearly 10,000 feet, L. F. Ward, in 1875), and on Gray- 

 back Mountain, San Bernardino Co., S. California, at 9,000-12,000 

 feet, W. G. Wright, Lemmon, in 1879-80. 



A possible variety of this, or a related species, with flowers almost 

 immersed in the tufts of foliage, was collected in Rabbit Valley, Utah, 

 by Mr. Ward (uo. 574), but only in blossom. 



-1- -i- Legumen obcompressum, lanceolato-oblongum, tenui-chartaceum, 

 sajpius uigricanti-pilosum, suturis utrisque intrusis fere bilocellatum : 

 pedunculi 1-2- (rare 3-) flori, breves vel brevissimi in caudicibus 

 uanis foliosissimis. 



7. 0. NiGRESCEXS, Fischer in DC. Prodr. ii. 278. Astragalus 

 nigrescens (large form) & A, pygmceus, Pall. Astrag. t. 53, 54. — 

 Arctic coast, especially on the Asiatic side ; coll. by C. Wright on 

 Arakamtschetchene Island within Behring Strait ; and by J. Muir on 

 Cape Thompson, on the American side. 



Var. AUCTOBIA. Pumila, pulvinato-depres?a, albo-villosa ; pedun- 

 culis uniHoris ; pube calycis et leguminis aut griseo-albida aut nigra. — 

 0. arctica, var., R. Br. in Parry, Voy. 0. arctica, var. minor, Hook, 

 in Parry, 2d Voy. 396, & Fl. Bor.-Am. i. 146. 0. arctohia, Bunge, 

 Oxytr. 114, excl. syn. Nutt. — Arctic sea-coast, coll. Admiral Parry 

 and most later explorers. Evidently passes into 0. nigrescens. 



