MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 483 



After the specimens cited under the same, add : 



* Bolelia brachyantha. 



A somewhat fleshy water-plant 2-3 dm. high, branched from the 

 base ; leaves oblong-lanceolate, obtuse or acutish, 5-10 mm. long, 

 thick ; flowers in a leafy-bracteate spike ; ovary in fruit about 3 cm. 

 long; sepals linear or oblong-linear, obtuse, about 5 mm. long; co- 

 rolla scarcely exceeding the calyx, the lip concave, 3-toothed at 

 the apex ; stamens shorter than the sepals. 



It is nearest related to BoIclia elegans (Dougl.) Greene \^Do2unin- 

 gia elegans Gray] , but differs in the very short corolla and stamens 

 and the obtuse sepals. In water. 



Montana: Augusta, 1887, R. S. Williams, yi2. 



On page 399, before Erigeron simplex, insert : 

 Erigeron uniflorus L. Sp. PI. 864 [111. Fl. 3 : 385 ; Syn. Fl. i^ : 207, 



in part] . 



The following specimens belong evidently to the true E. tmiflorus, 

 having the black-hairy long-acuminate bracts and narrow erect rays 

 found in the European and Alaskan specimens. High alpine. 



Montana : Mountains near Stanton Lake, 1894, R. S. Williams, 

 loiy. 



On page 416, before Adenocaulon bicolor, insert: 



*GnaphaIiuili Californicum DC. Prod. 6 : 224; Gnaphalium decur- 



reiis Californicum Gray, Bot. Cal. i: 341. 



Like G. dccurrens, but the leaves not whitish beneath and less 

 hairy ; bracts pearly white, obtuse. In wet meadows, at an altitude 

 of about 1000 m. 



Montana : Columbia Falls, 1894, R. S. Williams. 



On page 428, after Artemisia frigida, insert : 



* Artemisia Absinthium L. Sp. PI. 848 [111. Fl. 3: 464; Syn. Fl. 



2': 370]- 



The Wormwood of Europe is sparingly introduced. 



Montana : Missoula, 1898, Williams & Griffith. 



On page 431, before Artemisiia tenuis, insert: 



* Artemisia subglabra A. Nelson, Bull. Torr. Bot. Club, 27: 36. 



Like A.Lindley ana, but glabrous, although more or less glandular- 

 dotted. 



Yellowstone Park: Yellowstone River, 1899, Aven Nelson, 



5743- 



