418 POLYGONACEAE 



to ovate or roundish, undulate and irregularly revolute-margined, truncatish 

 or subcordate at base, dark green and glabrate above, white with a dense felt 

 beneath, 2 to 6 lines long, shortly petioled ; peduncles short, simple or umbel- 

 lately 2 or 3-forked, bearing terminal or racemosely scattered heads of in- 

 volucres, the heads few, compact, also sessile in forks when the inflorescence 

 is umbellate; involucres 2 lines long, glabrate outside, densely woolly on in- 

 side at throat; calyx white, glabrous, 1% to 2 lines long, its segments obovate, 

 the outer obtuse, the inner slightly broader and retuse ; filaments a little hairy 

 at base. 



Sand-dunes and hillsides near the coast; Monterey Bay to Southern Cal- 

 ifornia. 



Locs. Santa Cruz, ace. Anderson; Pt. Pinos, Monterey, Jepson; Carmel Mission, Jepson; 

 Little Sur, Jepson 2604; Oceanside, Parish 4445; Carlsbad, Alderson. 



Kef. ERIOGONUM PARVIFOLIUM Smith in Eees, Cycl. 13 (1819), the type from California, 

 Menzies. 



41. E. fasciculatum Benth. FLAT-TOP. "WILD BUCKWHEAT." Woody at 

 base, 2 to 3 feet high, with shreddy bark; branches very leafy, ending in a 

 mostly short (1 to 3 inches) peduncle bearing the inflorescence; involucres 

 in capitate clusters or heads; heads terminal on the unequal rays or sessile 

 in the forks of a simple or compound umbel, or the umbel reduced and capi- 

 tate; rays 1 to 4 inches long; bracts linear; leaves oblong, linear or oblance- 

 olate, revolute margined, 4 to 8 lines long, drawn down to a narrow base, 

 densely white-woolly below, usually green and glabrate above; involucres 

 2 lines long, with short acute teeth; calyx white, glabrous, l 1 /^ to 1% lines 

 long, the outer 'segments elliptic, the inner obovate and narrower, all rounded 

 at apex ; filaments glabrous or nearly so. 



Abundant on mesas and mountain slopes from Monterey Co. to Southern 

 California. It is generally known as ' ' Wild Buckwheat ' ' and is the third most 

 valued native bee-plant after White Sage and Black Sage. The typical form 

 described above, with glabrous flowers, is confined to the sea-coast from Santa 

 Barbara to San Diego. The two dominant mesa forms are the following 

 varieties. 



Var. foliolosum Stokes. Peduncles long (4 to 10 inches) ; leaves more 

 strongly revolute-linear, green but pubescent above, tomentose beneath; 

 calyx slightly hairy outside. Chaparral slopes, the abundant form: Santa 

 Barbara to San Diego and east to San Bernardino and Temescal. 



Var. polifolium T. & G. Peduncles long; foliage gray, the leaves commonly 

 less revolute, hoary above, tomentose below; calyx often conspicuously 

 hairy outside, especially towards the base. Desert slopes of the mountains 

 in the Colorado and Mohave deserts west to Palomar; north to Bakersfield 

 and Inyo Co., east into Nevada. 



Kefs. ERIOGONUM FASCICULATUM Benth. Trans. Linn. Soc. 17: 411 (1837), types from 

 California, Menzies, Douglas. E. aspalathoides Gand. Bull. Soe. Eoy. Bot. Belg. 42: 189 (1905), 

 type loc. Los Angeles. Var. maritimum Parish, Muhl. 3: 59 (1907), type loc. Oceanside, Parish 

 4445. Var. FOLIOLOSUM Stokes; Abrams, Bull. N. Y. Bot. Gard. 6: 351 (1910). E. rosmarini- 

 folium Nutt. Jour. Phila. Acad. ser. 2, 1: 164 (1848), type loc. Santa Barbara, Nuttall. 

 Var. foliolosum Nutt. 1. c. 165, type loe. Santa Barbara, Nuttall. Var. oleifolium Gand. Bull. 

 Soc. Roy. Bot. Belg. 42: 189 (1905), San Diego. Var. POLIFOLIUM T. & G. Proc. Am. Acad. 

 8: 169 (1870). E. polifolium Benth. in DC. Prodr. 14: 12 (1856), based on Fremont, Sierra 

 Nevada (probably near Tehachapi), and Parry, San Diego. 



42. E. latifolium Smith. Flowering stems from a densely leafy caudex, 

 stout, tomentulose, naked, % to 2 feet high, 2 to 4-forked above, the forks 

 simple or again forked ; involucres in capitate clusters, terminal and sessile in 

 the forks, or the whole inflorescence often reduced to a single large head 

 or with one proliferous branch from under the first head; leaves ovate to 

 oblong, obtuse or acute, at base rounded or cordate, rarely cuneate, often 





