NORTH AMEEIOAN AMAEBLLA. 55 



the corolla ovate-oblong, acute, half as long aa the tube; fringe 

 of the crown copious, rather short. 



Along the Pacific seaboard from Vancouver Island, Macoun, 

 31 July, 1893, southward into Washington and Oregon. 



A. CONFEETA. Stout and rigid, erect and simple, with only 

 very short fascicled flowering branches and pedicels in the axils 

 of the leaves and not exceeding them ; internodes an inch long 

 more or less, subterete, with only traces of angularity : leaves 

 rather succulent, oblong, not subcordate, an inch long or less : 

 flowers less than i inch ; calyx large, nearly or quite equalling 

 the corolla-tube, not very deeply cleft, the segments oblong and 

 lance-oblong, acute, delicately but closely scaberulous on the 

 margin, the sinuses open and obtuse, segments of the corolla 

 oval, obtuse ; crown conspicuous. 



Chaplin, Assiniboia, 28 Aug. 1895, Mr. Spreadborough, spec- 

 imens communicated by Mr. Macoun, but the label bearing no 

 number. Species strongly marked in both habit and character. 



A. SCOPULOEUM. Stoutish, simple or with many branches 

 from the base, mostly 6 to 12 inches high, the stem faintly ang- 

 ular, internodes in larger plants 1 to 3 inches long: middle- 

 stem-leaves oblong, obtuse, 1 to li inches long, 3 -nerved, the 

 lowest obovate and spatulate, the uppermost oblong-linear, acute: 

 flowers several in each axil, usually on a short branch, more 

 numerous at summit, commonly about I inch long ; longer sepals 

 of the very deeply cleft calyx almost equalling the corolla-tube, 

 all of them linear, acute, the sinuses obtuse : ovate-lanceolate 

 segments of the corolla acute, the appendages deeply and finely 

 fimbriate. 



Common species of the Eocky Mountain region from Colo- 

 rado to Montana ; often collected and everywhere distributed in 

 the herbaria. 



A. EEVOLUTA. Near A. scopuloram, but smaller, only 5 or 6 

 inches high, much more densely leafy and floriferous, the inter- 

 nodes mostly less than an inch long, the ovate-lanceolate revo- 

 lute leaves nearly as long : corolla little more than \ inch long : 

 calyx-segments shorter than the corolla-tube, two of them spatu- 

 late-linear, two oblong or oblong-linear, the sinuses obtuse : 



