MEMOIRS OF THE NEW YORK BOTANICAL GARDEN, 297 



Montana: Deer Lodge, 1889, J^. IV. Traphagcn; Spanish 

 Peaks, 1896, Flodnian, jog; Sun River, 1887, ^- ^- Williams, 6yg; 

 Columbia Falls, Mrs. Kennedy., ^j ; Deer Lodge Co., Afiss Emma 

 Ware; McDonald's Peak, 18S3, Canhy, 221; Upper Marias Pass, 

 Canby, 221 . 



* Menziesia urceolaris Salisb. Par. Lond. //. 7-/, 1806-7 ; Meuziesia 

 ferruginea Smith ; Pursh, Fl. Am. Sept. 264. 1814 [Syn. Fl. 2^ : 



39; Bot. Cal. i: 457]. 



Like the last but with longer corolla, merely apiculate seeds, gla- 

 brous filaments and more glandular-bristly pedicels. Up to an altitude 

 of 2500 m. 



Montana: Granite, 1892, F. D. Kchey. 



Yellowstone Park : iS(^2>^ A^^^^on Brozvn. 



Azaleastrum. 



Branching shrubs with alternate deciduous leaves and axillary 

 1-3-flowered clusters; flowers rather large; corolla saucer-shaped 

 or rotate-campanulate, regular, 5-cleft : sepals membranous-folia- 

 ceous, half the length of the corolla ; stamens mostly 10, a little 

 exserted, almost equally spreading ; hhmients bearded at the base ; 

 anthers awnless, attached by their backs to the filament, opening by 

 terminal pores ; styles slender and curved ; stigma peltate and 5-lobed. 



The following species, which has generally been included in Rho- 

 dodendron, is one of those that formed the subgenus Azaleastrum of 

 Planchon and Maximowicz. This subgeneric name is taken up. 

 The generic characters may have to be slightly modified when the 

 Asiatic members are included. Our American representative, at 

 least, is so unlike, the true Rhododendra that it deserves generic 

 rank fully as much as R/iodora and Azalea. It differs from these 

 in the large sepals, lateral flowers and peltate stigmas ; from Rhodo- 

 dendron in the deciduous leaves, and from the other two in the form 

 of the corolla. 



* Azaleastrum albiflorum (Hook.) ; Rhododendron albifornm Hook. 



Fl. Bor. Am. 2 : 43. 



A species with large white flowers and pale green leaves, growing 

 in woods. 



Montana: McDonald's Peak, 1883, Canby, 220. 



Kalmia microphylla (Hook.) Heller, Bull. Torr. Bot. Club, 25 : 581 ; 

 Kalmia glauca microphylla Hook. Fl. Bor. Am.. 2 : 41 [Syn. Fl. 

 2': 38; Man. R. M. 229; Bot. Cal. i: 457]. 



