V. NEW AND INTERESTING SPECIES FROM 

 NEW MEXICO. 



A. A. HELLER. 



Allionia diffusa n. sp. 



Stems terete, two or three from a perennial rootstalk, diffusely 

 branched from the base, 20 to 30 cm. in length, whitened and 

 glabrous below, the middle part usually marked with several 

 lines of short, curved hairs, the branches immediately below the 

 inflorescence, as well as the inflorescence itself, covered with 

 spreading, glandular hairs ; leaves sessile, lanceolate-linear, 

 slightly narrowed at the base, the lowest 5 to 6 cm. long, the 

 upper ones about half that length, all acute, the upper face pro- 

 vided with a grayish margin, midvein prominent ; involucres 

 clustered at the ends of the branches, mature ones about 7 mm. 

 across, their lobes triangular-lanceolate, acutish, between 2 and 

 3 mm. long; perianth pale rose color, 6 mm. long, its lobes 

 broadly obovate ; stamens three, these, as well as the style, ex- 

 serted. 



The type is our no. 3740, collected June 21, 1897, on dry, 

 gravelly hills, ten miles west of Santa Fe, altitude 6000 feet. 

 The diffuse habit of the plant cannot always be well shown in 

 dried specimens, but it is quite marked in the living state, the 

 lower branches being almost procumbent. This species is, per- 

 haps, plentiful in the vicinity of the place where it was first 

 found, but as only one trip was made to that place after it came 

 into bloom, only a few specimens were collected. 



Pedicularis fluviatilis n. sp. 



Stems several from a perennial root, erect, 15 to 20 cm. high, 

 lanate pubescent, especially above, leafy, or the upper part 

 somewhat naked; leaves alternate, rather distant, dark green, 

 mature ones 5 to 6 cm. long, i cm. wide, linear-oblong in out- 

 line, acute or acutish, deeply pinnately parted, the lobes of 



