640 Rvdberg : Rocky Mountain flora 



hispid-strigose ; the hairs with pustulate bases ; calyx glabrous 

 except the ciliate margins of the lobes ; these oblong-lanceolate, 

 acute or obtuse ; corolla blue, about 12 mm. long ; tube equaling 

 the throat and limb ; the latter y-S mm. wide ; tube densely vil- 

 lous at the base within ; anthers subsessile, inserted a little below 

 the throat. 



This species is evidently nearest related to M. alpina, notwith- 

 standing the much larger size and erect habit. The corolla is 

 almost twice as long as in that species. 



Colorado : Mountains south of Ward, Boulder County, 1901, 

 Ostcrhout 24.39. 



Mertensia canescens sp. nov. 



Low and cespitose perennial with woody caudex ; stems about 

 1 dm. high, strigose ; leaves linear or linear-oblanceolate, grayish 

 strigose on both sides ; pedicels and calyx strigose ; calyx-lobes 

 linear-lanceolate, acute, about 2 mm. long, on the margin ciliate 

 with longer hairs ; corolla blue, about 8 mm. long ; tube 1.5 mm. 

 wide and about as long as the throat and the limb, the latter about 

 3 mm. wide ; anthers subsessile at the margin of the corolla-tube. 



Closely related to M. alpina, it is easily distinguished by the 

 canescent and narrow leaves. It grows on the mountains at an 

 altitude of 3360-3600 m. 



Colorado : Berthaud Pass, 1903, Tweedy 5664 (type) ; moun- 

 tains northwest of Como, 1895, Cowen 1808. 



Stachys teucriformis sp. nov. 



Perennial, 4-6 dm. high ; stem round-angled, glandular-villous ; 

 lower leaves short-petioled, the upper sessile ; blades oblong or 

 oblong-ovate to ovate, cordate or truncate at the base, 5- 10 cm. 

 long, crenate, pubescent on both sides ; calyx glandular, villous, 

 its lobes linear-lanceolate, long-aristate, about equaling the tube ; 

 corolla 12-15 mm - l° n g» n 'ght rose, with reddish-purple veins and 

 blotches ; upper lip narrow and nearly straight ; lower lip large, 

 3-lobed; lateral lobes triangular; middle lobe rounded-reniform. 



The species is closely related to 5. scopulontm, but differs 

 from it in the larger corolla, the longer calyx-lobes and the usually 

 broader leaves. The type sheet contains two specimens : one of 

 5. teucriformis and one of Tcucrium occidentale, and the two are so 

 alike in foliage that it is hard to distinguish them except by the 

 flowers and bracts. 



