170 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Gallatin Co., Mrs. Aldcj-soii ; Helena, 1891, F. D. Kclscy ; Boze- 

 man, iSS'T^, So'ibne?', id: Odells, 1880, Watson; Missoula, Watson. 



* Thalictrum megacarpum Torr. in Frem. Rep. 87 (name); Trelease 



Proc. Bost. See. Nat. Hist. 23: 303. 



Resembles most T. occidentale., but the leaves are generally 

 somevvhat smaller and firmer ; the achenes are broader, more flat- 

 tened and oblique as in T. Fendlcri\ but somewhat longer. All 

 specimens referred to T. FcndJeri from Montana and northern Wyo- 

 ming belong here ; T. Fcndleri is easily distinguished by the small 

 leaflets and the short achenes. T. megacarpum grows with the pre- 

 ceding. 



Montana: Bridger Mts., June 12, 1897, Rydbcrg & Bessey, 

 4137; Mountains near Indian Creek, July 21, 1897, Fydberg <f- 

 Bessey^ 4136; Jack Creek, July 14, 1897, 4138 ; Spanish Basin, 

 June 28, 1897, 4138)^,; Bozeman, 1885, Tweedy, 8^4; Trail Creek, 

 1887, Tzi'cedv, lyg; Belt Mts., F. W. Anderson, 7; Highwood 

 Canon, 1888, F. S. Williams, /j/; Columbia Falls, 1892, R. S. 

 Williams, 867; McDonald's Peak, 1883, Canby, 7. 



Yellowstone Park : Mammoth Hot Springs, 1884, Tzveedy, 

 303; Lake, 1893, Addison Brozvn; 1888, Dr. C/ias. H. Hall: 1871, 

 Ha xden . 



Thalictrum purpurascens L. Sp. PI. 546 [111. Fl. 2 : 88 : Syn. Fl. 



i' : 17] ; Talictriim Cornnti Hook. Fl. Bor. Am. i : 3 [Man. R. 



M. 5] ; not L. 



This species belongs to the prairie region, but extends in tlie river 

 valleys up to an altitude of 2000 m. 



Montana: Bozeman, 1886, Tzveedy, 1060; Belt Creek, 1887, 

 R. S. Williams, 418. 



BERBERIDACEAE. 



Berberis Aquifolium Pursh, Fl. Am. Sept. 219 [111. Fl. 2 : 90] ; Ber- 

 bcris repens Lindl. Bot. Reg. /. iij6 [Syn. Fl. i' : 69; Man. R. 

 M. 12; Bot. Cal. i: 14]. 



It is evident that Pursh's description and plate, except one leaflet, 

 belong to what has generall}- been known as B. repens Lindl. 

 Lindley made a mistake when he supposed that the name B. Aqui- 

 folium belonged to the tall shrub of the Pacific coast, and this mis- 

 take has been followed by most American authors. 



