490 COMPOSITAE (composite family) 



((?. plaiylepis Greene, 1. e. Probably based on an abnormal specimen.) — On 

 the nigh plains; Montana to Colorado. ■ 



2. Grtndelia erecta A. Nels. Bull. Torr. Bot. Club 26: 356. 1899. Biennial, 

 stem single from the enlarged crotvn of a strong taproot, erect, simple below, 

 corymbose-paniculate above, 4-8 dm. high: leaves ample, serrate, the teeth 

 short, acute; radical leaves early defciduous the second season, ob lanceolate, 

 on slender petioles, gradually expanded to d broadish base; the lower cauline 

 similar and also petioled but becoming sessile upward, 6-10 cm. long; the 

 uppermost smaller, oblong, sessile by a clasping base: heads large, subglobose, 

 usually leafy-bracteate; involucral bracts numerous, moderately glutinous, 

 appressed, with slender recurved tips: rays slender, numerous, 14-18 mm. 

 Ibng: pappus bristles 2-6, mostly 4, slender, closely barbelluate. — In the 

 cafions of the foothills and mountains;' Wyoming and Colorado. 



3. Grindelia texana Scheele, in Linn. 21: 60. 1848. Stems stout, erect, 

 simple below, 6-12 dm. high': leaves dark or bluish-green, with slender 

 spinulose teeth, only the crown leaves petioled; the icauline oval above to 

 oVate-bblong below; sessile by a broad (Slapping base: heads large, the rays > 

 20-25 mm. long; thie bracts broad, even the squarrose tips flat. (Not the 

 G. grandiflora Hook, of Texas.) — Central Colorado to New Mexico. 



4. GrindeUa sqularrosa (Pursh) Dunal, DC. ' Prodr. 5: 315. 1836. Gla- 

 brous, commonly freely branched from the' base up, 3-6 dm. high: leaves ob- 

 long or oblong-spatulate, obtuse, more or less clasping at the base, sharply 

 dentate, sometimes laciniate, 1-3.5 cm. long, 6^12 mm. wide: heads very 

 glutinous; bracts of the involucre Unear-lanceolate, subulate-tipped, strongly 

 squarrose: achenes truncate, those of the outer flowers usually thicker than 

 those of the inner; pappus of 2 or 3 awns. — ^From Minnesota and Manitoba to 

 Nevada, Texas, and Mexico. 



, 5. Grindelia fastigiata Greeney Pitt. 3: 102. 1896. Stems few to several 

 from the woody root, decumbent at base or if few mostly erect, simple or freely 

 branched, 2-4 dm. high: leaves more or less serrate ortoothed; the, crown 

 leaves petioled, lanceolate or oblanceolate; the , cauline mostly sessile, ovate 

 to narrowly oblong, often clasping by the broadish base: heads medium 

 size, subspherical; involucral bracts numerous, glutinous, slender, with squar- 

 rose, reflexed or recurved tips: rays, wanting: pappus awns 2 or 3. [G. nuda 

 Wood (?); G. inornata Greene, 1. c; G. aphanmstis MydXi. Bull. Torr. Bot. 

 Club 31: 647. 1904; the latter seemingly founded- upon an abnormal spec- 

 imen of G. perennis.] — Colorado and New Mexico. 



6. Grindelia decumbensGreenej Pitt., 3: 102. 1896. Stems several, 2-4 dm. 

 high, decumbent at base, encircling a tuft of radical leayes: radical leaves 

 thmnish, oblanceolate, obtuse, S-S-toothed; tapering very gradually to the 

 narrowly winged petiole; cauline leaves few and sniall, oblong, acute, entire: 

 heads many, rather small, in a corymbose panicle; bracts pf the subglbbose 

 involucre rather few, only the outermost short ones conspicuously squarrose: 

 rays ample but .few and remote, 10 or 12 to the head: ray-achenes trigonous, 

 those of the disk thin and flat, striate; the 2 or 3 pappus-awns stout, flat, 

 barbellate above; — Colorado to New Mexico. 



7. Grindelia perennis A. Nels. 1. c. 110. , Root woody, usually with numer- 

 ous slender secondary ones; stems 1 or more from the crown, paniculately 

 corymbose branched above, 3-5 dm. high, rather leafy above,, the basal early 

 deciduous: leaves denticulate, the basal and lowest cauline short-petioled, 

 oblanceolate; the middle cauline sessile, oblong or oblanceolate, 4-7 cm. long; 

 the uppermost oblong or reduced to mere bracts: heads rather numerous, the 

 rays numerous (20-30), about 1 cm., long; involucral bracts glutinous, strongly 

 recurved in undeveloped heads, only slightly squarrose at maturity: pappus 

 bristles 2-6. — ^From' Montana to New Mexico, especially on saline flats. 



8. Grindelia subincisa Greene, Pitt. 4: 154. 1900. Stems 2 or more, de- 

 cumbent, 2-3 dm. high, rather loosely branched, the branches slender, spar- 

 ingly leafy, and mostly monocephalous: lowest leaves oblanceolate, rather 

 tlmi, the margin variously but usually remotely incisely serrate; those of the 

 branches oblong-lanceolate and sessile, incisely serrate: involucres hsmi- 



