dull deep r, iy 2 ' long; fr viscid-pubes- 

 cent, wings somewhat coriaceous. 



Abrams, Fl LA 137. 



SBar to Magdalena bay, Baja Cal. 

 ABRONIA UMBELLATA Lam. 



Sts slender, prostrate and widely 

 branching-, 1-3 long, viscid-puberulent: 

 Ivs nearly glabrous, broadly obovate to 

 oblong, margin rarely sinuate, 1-1%' 

 long, narrowed to a slender petiole of 

 unequal or longer length; peducles 2-6' 

 long; involucral bract? narrowly lance- 

 olate. 2-3" long, enclosing 10-15 fls, 

 forming an umbel-like hd: cx-rose-p, 

 rarely whitish, 6-8" long, lobes 5, em- 

 arginate: fr oblong, attenuate at each 

 end, 4-5" long, glabrous: wings thin, 

 broadest above and often truncate. 



Abrams, Fl LA 137. 



Columbia river to Baja Cal. 

 ABRONIA TURBINATA Torr. 



Ann and slender, viscidly pubescent 

 or only puberulent, sts ascending or pro- 

 cumbent, ^-l 1 ^ long: Ivs ovate to ob- 

 long-lance'olate, ^-l 1 /^' long, usually 

 truncate-cordate or rounded at base: ped 

 slender, exceeding the Ivs: inv bracts 

 usually 5, linear or lanceolate, acumin- 

 ate, somewhat scarious: perianth rose- 

 colored, 6-8" long, tube very narrow, 

 lobes deeply cleft: fr thin-coriaceous, 

 3-4" long, either reg winged and wings 

 terminating in, transverse circular disks, 

 or unequally winged and disks 0: ak 1" 

 long. Tex.. 



Watson, Bot King Exp 285 .(1871). 



Type locality: "NM; Ar; So Cal; Nev." 



Colorado Desert (Parish). 



Genus ACANTHOCYPHUS Small. 



Slender nearly glabrous acaulescent 

 ann herbs, with erect wiry forking 

 scapes; Ivs basal firm denticulate with 

 spinulose teeth, dilated at the base: 

 bracts scale-like, ternate, united at the 

 bases, inclined to one side of the axes: 

 involucres turbinate, truncate, on wire- 

 like peduncles, with 18-20 hard ribs, 

 which are prolonged into as many rigid 

 acicular awns, these surpassing the 

 tube in length: fls 5-14, of 2 kinds, stam- 

 inate included, pistillate exserted: pedi- 

 cels substended by linear or linear- 

 spatulate bractlets: perianth glabrous, 

 seg 6: sta 9, inserted at base of peri- 

 anth. 

 ACANTHOCYPHUS FARISHII Small. 



Based on Oxytheca Parishii Parry, 

 which see for description. 



Abrams, Fl LA 115 "Common in the 

 pine belt of the Gabriel and SBer mts." 

 Genus ERIOGONUM Miclix. 



Ann or per herbs or rarely shrubs, 

 with basal, alt or verticillate Ivs, with- 

 out stipules, and perfect involucrate fls: 

 inv campanulate, turbinate or oblong, 

 4-8-toothed or 4-8-lobed, awnless, usu- 

 ally many-fid; the more or less exserted 

 pedicels intermixed with scarious nar- 

 ro$v setaceous bracts or bractlets; per- 

 ianth 6-parted or deeply 6-cleft, petaloid: 

 sta 0, inserted on the base of the peri- 

 anth: sty 3; stig capitate: ak triangu- 

 lar, rarely lenticular. 

 ERIOGONUM CINEREUM Benth. 



Snrubby 8-15 dm hi, in dense clumps, 

 hoary tomentose thruout; Ivs orbicular 



280 



to 9blong, 12-18 mm long, on .very short 

 petioles, obtuse, undulate, strongly 

 nerved; peduncles elongated, sparingly 

 dichotomously branched, bearing few 

 rather loose hds: bracts short; inv 4 

 mm long; perianth very villous, rose 

 colored, 2-3 mm long. 



Abrams, Fl LA 117. 



Curran once referred E. giganteum to 

 this, but later published a variety of 

 that species. 



San Pedro and Monica on seashore. 



ERIOGONUM ELONGATUM Benth. 



Sts erect, rather slender, from a spar- 

 ingly branched base; Ivs usually some- 

 what scattered, oblong-lanceolate, 2-3 

 cm long, acute, narrowed to a short peti- 

 ole, becoming glabrate above; bracts ov- 

 ate-triangular to lanceolate, acute; inv 

 distinct on the few elongated branches, 

 5-6 mm hi, obtusely toothed; fls w or 

 pale rose, 2-3 mm long; ak glabrous. 

 Monterey to Baja; LA (Davidson)". 

 ERIOGONUM FASCICULATUM Benth. 



Hall U 73. Wild buckwheat. 



Shrubby, 5 dm hi or more, more or 

 less tomentose; Ivs narrowly oblanceo- 

 late, revolute, tomentose beneath, gla- 

 brate above, 6-18 mm long, much fas- 

 cicled; ped short or elongated, bearing 

 a short cymosely divided umbel; bracts 

 rather conspicuous; inv about 4 mm hi, 

 glabrate; fls rose or whitish, glabrous 

 or somewhat villous. 



Abrarns, Fl LA 117. 



Bentham, Linn soc tr 17:411 (1837). 



Type locality: "Upper California." 

 . Coville, CNH 4:186. SBer. 

 '"Buckwheat." Arizona; Utah; S Bar to 

 Baja. Most excellent bee pasturage. Ha 

 U 73. 

 ERIOGONUM GRACILE Benth. 



Floccose-tomentose thruout, rather 

 diffusely branched, 2-6 dm hi: Ivs oblan- 

 ceolate or broadly oblong, tomentose on 

 both sides or less so above; bracts more 

 or less elongated, the lower foliaceous: 

 inv rigid, acute, often dark brown; per- 

 ianth w or pale rose, 1.5 mm long. 



S F; San Fernando, Baja (Br). Ha U 73. 

 E. grande Greene pitc 1:38. Cruz. 

 E. rubescens Greene, pitt 1:38. Cruz. 



Abrams, Fl LA 119. 

 Variety LEUCOCLADON Torrey. 



Less branched, branches strict, be- 

 coming glabrate; fls pale rose. 



Abrams, Fl LA 119. 

 ERIOGONUM LATIPOLIUM Smith. 



Caudex indurate, its branches few, 

 short, very leafy; scapes not fistulose, 

 2-5 dm hi; Ivs oblong to ovate, 2.5-5 cm 

 long, often undulate and becoming gla- 

 brate above; bracts triangular; hds 

 large, dense, lii-20 mm broacl, solitary, 

 terminal, or few in a simple umbel; inv 

 tomentose, 4 mm long; fls glabrous, light 

 rose color, 3 mm long. SF. 



Abrams, Fl LA 117. Bluffs near 

 Monica. 



Curran, Cal ac pr, sr 2, 1:268. Cites 

 as synonyms: EE arachnoideum Esch, 

 affine et auriculatum Bentham, grande 

 Greene nudum Dougl, et var pauciflorum 

 S. Watson, oblongifolium Bentham, et 

 rubescens G-reene. 



Davidson, PI LA Co 14. 



