Rydberg : Rocky Mountain flora 407 



and somewhat connate at the base ; inflorescence elongated ; 

 bracts subulate to lanceolate, scarious-margined ; pedicels erect, 

 1-2 cm. long, glabrous ; sepals linear-lanceolate, about 6 mm. 

 long, glabrous, long-attenuate, equalling or slightly exceeding the 

 petals. 



This is most nearly related to A. Fendleri but is more slender 

 and glabrous. It grows on dry hills. 



Colorado : Grand Junction, 1892, Alice Eastwood. 



Arenaria Fendleri Porteri var. nov. 



Like the type but low, 1-2 dm. high, very glandular; leaves 

 short ; branches of the inflorescence short and ascending. 



It is common on dry mountain ridges of Colorado. As type 

 I take the following : 



Colorado : Gray's Peak, 1878, M. E. Jones, 716 (type in herb. 

 Columbia University). 



Alsinopsis macrantha sp. nov. 



Perennial, cespitose, diffusely branched and spreading, perfectly 

 glabrous ; branches I dm. long or less ; leaves subulate-filiform, 

 obtuse, 5-10 mm. long, 0.5 mm. wide, 1 -nerved; pedicels 1 cm. 

 or less long ; sepals lanceolate, 4-5 mm. long, very acute, scar- 

 ious-margined, strongly 3-nerved ; petals oblong, y-S mm. long. 



The type sheet is labelled Arenaria verna L., which it resem- 

 bles much in habit, in the sepals and in the lack of pubescence, 

 but it differs in the large petals and the 1 -nerved leaves. 



Colorado: Little Kate Basin, La Plata Mts., 1898, Baker, 

 Earle & Tracy, 678. 



Silene Antirrhina vaccarifolia var. nov. 



Stem-leaves broad, lanceolate, elliptic or oblanceolate ; stem 

 stouter than in 6". Antirrhina proper ; bracts more or less scarious- 

 margined below ; flowers and capsule larger. 



In the Rocky Mountain region the typical 6". Antirrhina is 

 rather rare and evidently an introduced plant found in waste places 

 and fields. It is there represented by two native forms, the pres- 

 ent with broad leaves and large flowers and the next with narrow 

 leaves and small flowers. 



Idaho: Lewiston, 1896, A. A. & E. Gertrude Heller, Jijj 

 (type in herb. Columbia University) ; Upper Ferry, Clearwater 

 River, 1892, Sandberg, MacDougal & Heller, 190. 



