218 LEAFLETS. 



Known only as collected in 1874, at 9000 feet, on Mt. Gra- 

 ham, Arizona, by J. T. Rothrock. 



Erigeron leiophyllus. Akin to E. macrantkus , stout 

 and rigid, 2 feet high, the stem perfectly glabrous, whitish 

 and somewhat polished, closely leafy to the monocephalous 

 or subcorymbose summit ; basal leaves if any unseen, the 

 lower cauline 2 or 3 inches long, broadly oblanceolate to spat- 

 ulate, these succeeded by oval ones oi X% inches or more, 

 those nearer the summit gradually shorter and, the uppermost 

 ovate and J^ to ^ inch long, the lower and larger obtuse, the 

 small uppermost acute, all very smooth and glabrous on both 

 faces, only the margins scaberulous with short upturned 

 bristly hairs : heads 1 to 5, small for the plant ; bracts of the 

 involucre linear, acute, glabrous, under a lens showing faint 

 traces of minute granular indument. 



Collected at Fort Douglas, Utah, 17 July, 1886, by Marcus 

 E. Jones, the very good type sheet of four stems being n. 

 221417, U. S. Herb. 



Erigeron congestus. Low perennial, with taproot 

 crowned by a closely compacted system of short and stout 

 branches bearing tufted upright leaves and many scapiform 

 monocephalous branches. The whole plant only 3 or 4 inches 

 high, every part almost hoarily strigose-hirsute : leaves ob- 

 lanceolate, obtuse, entire, an inch high or little more ; scape- 

 like branches with few and inconspicuous narrow bract-like 

 leaves and simply hirsute with long white hairs : involucre 

 hemispherical, the bracts linear, acute, very hirsute with 

 stiflSsh, even somewhat strigose hairs like those of the leaves ; 

 head less than J^ inch high, more than J^ inch broad, rayless, 

 the flowers deep-yellow : achenes flattened, minutely strigu- 

 lose ; pappus double, the inner very slender and fragile. 



Gold Hill, in Bear Valley of the San Bernardino Mountains, 

 southern California, at 7000 feet, S. B. Parish, 2 June, 1901 ; 

 both habitally, and as to pubescence completely distinct from 

 E. aphanacHs, which also does not reach this region. 



