Eriogonum. POLYGON ACE.E. 29 



bracts very small : involucres glabrous, broadly turbinate, a line long : flowers yel- 

 low, very small, scarcely a half line long, abruptly narrowed at base. Proc. Am. 

 Acad. xii. 266. 



Collected in the valley of the Mohave River, Palmer, 1876. 



41. E. Lemmoni, Watson, 1. c. Eather stout, a span high, more or less hir- 

 sute with very short spreading hairs, not at all tomentose : leaves orbicular-reniform, 

 6 to 9 lines broad, on slender petioles, all radical : peduncles fistulous or inflated, 

 short, bearing a naked 3-rayed narrow umbel twice or thrice dichotomous : bracts 

 small: involucres glandular-pubescent, rather broadly turbinate, 1| lines long: 

 flowers pale rose-color, half a line long, with narrow lobes. 



On sand-hills near Reno, Washoe County, Nevada, J. G. Lemmon. A very peculiar species, 

 perhaps to be placed rather among the annuals of the following group though dissimilar in most 

 of its character. 



i H -i Involucres sessile and solitary (often secund) along the ascending and 

 usually long-virgate branches of the open naked dichotomous panicle : peren- 

 nials or annuals, with small bracts or the lowest sometimes foliaceous : peri- 

 anth glabrous, except in n. 48. ( VIRGATA, Benth.) 



H- White-tomentose perennials with a woody branching base, leafy below: panicle 

 sparingly branched, the branches more or less elongated and virgate : invo- 

 lucre tomentose, the teeth not margined. 



42. E. Wrightii, Torrey. Much branched and usually very leafy at base, a 

 foot or two high, rather slender : leaves oblong- to linear-oblanceolate, to 1 inch 

 long, often with smaller ones fascicled in the axils, tomentose on both sides or less 

 so above, acute, narrowed at base : bracts all small and triangular : involucres 

 loosely spicate along the ascending branches, 1 to 1 lines long; teeth rigid, acute : 

 flowers rose-colored, 1 to 1^ lines long : akene scabrous on the angles above, very 

 acute at base. Torr. & Gray, 1. c. 176. E. Wrightii & trachygonum, Torr.; 

 Benth. in DC. Prodr. xiv. 14. E. helianthemifolium, Benth. 1. c. 



Var. subscaposa, Watson. The leafy branches very short.' 



A variable species ranging from the lower Sacramento (Corral Hollow, Brewer) to San Diego, 

 and eastward to New Mexico ; the variety in the Sierra Nevada and W. Nevada. At high alti- 

 tudes the inflorescence is sometimes reduced to 2 or 3 involucres almost capitate upon a slender 

 dwarfed scape ; Mt. Finos, at 8,500 feet altitude, Rothrock. 



43. E. saxatile, Watson. Biennial or perennial (]), the densely leafy caudex 

 sparingly branched, a half to a foot high, rather stout : leaves rounded or obovate, 

 obtuse, 6 to 8 lines broad or less, cuneate at base, on a short thick petiole, densely 

 tomentose both sides : branches of the cymose panicle short and somewhat spread- 

 ing : bracts larger, subfoliaceous, triangular to acute-oblong : involucres 1 J to 2 lines 

 long ; teeth acute : flowers rose-colored, 2 lines long, the sepals appressed to the 

 nearly glabrous akene, which is more abruptly narrowed at base. Proc. Am. Acad. 

 xii. 267. 



On rocks above San Bernardino (Parry, 1876) : in the Santa Lucia Mountains, Palmer. 



44. E. elongatum, Benth. Stems erect and slender from a sparingly branched 

 base, a foot or two high, often without branches : leaves usually somewhat scattered, 

 oblong-lanceolate or sometimes nearly ovate, about an inch long, acute, narroAved to 

 a short petiole, becoming glabrate above : bracts ovate-triangular to lanceolate, 

 acute, rarely somewhat elongated : involucres 2| to 3 lines long, obtusely toothed, 

 distant on the few elongated branches : flowers white or rose-colored, 1 to 1J lines 

 long : ovary glabrous. Bot. Sulph. 45 & DC. Prodr. xiv. 14 ; Torr. & Gray, 1. c. 



Near the coast from Monterey to San Diego. 



E. STRICTUM, Benth. A very slender species, the leafy branches of the caudex very short, 

 becoming glabrate above : leaves ovate to oblanceolate, ^ to 1 inch long, on long slender petioles, 



