6<S8 Rydberg : Rocky Mountain flora 



Scrophularia serrata sp. nov. 



Perennial ; stem 1—2 m. high, angled, sparingly puberulent or 

 glabrous, slightly glandular in the inflorescence ; leaf-blades ovate 

 or cordate, 5-15 cm. long, regularly serrate with the teeth directed 

 forward, acute or short-acuminate, minutely glandular-puberulent 

 on both sides ; bracts rather conspicuous, linear-lanceolate, the 

 lowest 2—3 cm. long ; calyx-tube hemispheric, glabrous or nearly 

 so, 2 mm. long ; lobes rounded, 2 mm. long ; corolla-tube short, 

 ^-j mm. long, nearly 5 mm. thick ; upper lip 4-5 mm. long ; 

 sterile stamen obovate-spatulate, purple. 



This species is related to Scropliularia niayilandica and ^. 

 ncglecta. From both it differs in the stout, strongly ascending, 

 instead of more or less spreading branches of the inflorescence ; 

 from the former in the larger corolla (about twice as large) and 

 from the latter in the shorter corolla-tube, scarcely twice as long 

 as the calyx, and the finely glandular-puberulent, instead of densely 

 pubescent lower leaf-surfaces. In vS". ncglecta the corolla-tube is 

 about three times as long as the calyx. .5". occidoita/is, the common 

 Rocky Mountain species, has doubly toothed or incised leaves 

 with spreading teeth and a reniform greenish sterile stamen. 



Idaho: Wet places, Granite, N. Idaho, July, 1887, J. H. 

 Sandberg (type, in herb. N. Y. Bot. Gard.). 



Pentstemon subglaber Rydb. nom. nov. 



Pentstemon glaber iitalicnsis S. Wats. Bot. King's Exp. 217. 

 1871. 



Pentstemon ntahensis A. Nels. Bull. Torrey Club 26 : 242. 

 1899. Not P. iitalicnsis Eastw. • 1893. 



Pentstemon alpinus [a] Torr. Ann. Lye. N. Y. i : 35. 1823 

 Pentstemon creophihis Rydb. Bull. Torrey Club 31 : 642. 

 1905. 



A reexamination of the type of Pentstemon alpinus has per- 

 suaded me that it is the same as my P. oreophihts and not as I 

 thought, the same as P. riparius A. Nelson. The latter should 

 therefore be restored. 



Pentstemon auricomus A. Nels. sp. nov. 

 Pentstemon Jamesii A. Nelson, Bull. Torrey Club 25 : 547. 

 1898. Not P. >?;//r.y// Benth. 1846. 



