Gri> DELIA. COMPOSITE. 247 



Heads solitary at the extremity of the branches ; the involucre, and often the 

 branchlets, as well as the (yellow) corolla, &c. covered with a glutinous var- 

 nish, particularly when young. Disk-flowers sometimes infertile. 



1. G. aineiJhUa (Nutt.) : herbaceous ? glabrous ; leaves entire (the lower 

 unknown), cuneate-oblong, or the uppermost linear-oblong, mucronate-acute, 

 partly clasping, somewhat fleshy, pellucid-(reticulate-) paniculate ; heads 

 (rather large) leafy at the base ; scales of the involucre with linear-subulate 

 recurved-squarrose appendages ; pappus of 5 or 6 short and stout nearly te- 

 rete bristles. — Nutt. ! in trans. Amer. phil. soc. I. c. G. s(|uarrosa /3. fol. sub- 

 inttg. carnosula opaca, Hook. &; Am. hot. Beecheij, p. 147. 



California, at St. Barbara, Nuttall ! — Mr. Nuttall obtained only imperfect 

 specimens, and thinks the plant may perhaps be only a variety of G. gluti- 

 nosa. The thick awns of the pappus are considerably shorter than the 

 corolla, and not at all angled or scabrous. 



2. G. inuloides (Willd.) : stem suffruticose at the base, branching and 

 pubescent or hirsute-pubescent above ; cauline leaves ovate-oblong, rather 

 glabrous, broader and cordate at the base, partly clasping, obtuse or rather 

 acute, evenly serrate-toothed ; scales of tlie involucre glabrous, produced into 

 linear-subulate spreading or recurved appendages ; bristles of the pappus 

 \-^.— Willd. I. c. p. 261, S^-enum. 2. p. 894; Dunal! I. c. t. 15 ; Bot. reg. 

 t. 248 ; DC. prodr. 5. p. 315 ; Hook. ! hot. mag. t. 3737. G. pubescens, 

 Nutt..' in jour. acad. Philad. 7. p. 74. G. spathulata. Link, enum., ex DC. 

 Aster spathulatus, Hort. Madr. ! S^x. Demetria spathulata, Lagasca, elench. 

 hort. Madr. (1814) p. 20. Inula serrata, Pcrs. 



(3. branches, leaves, and involucre glandular-hairy. Hook. fl. Bor.-Am. 

 2. p. 25, under Donia. 



y. leaves ovate-oblong or elliptical, obtuse ; the upper finely pectinately 

 serrate, mostly tipped with glands; achenia of the disk often sterile. — G. mi- 

 crocephala, DC. I. c? (which is said to have a pappus of 4-5 bristles.) 



Texas, Belandier ! Drnmmond ! {a. & 7.) Arkansas, Nuttall! jS. Sources 

 of the Wahlaraet, Douglas, ex Hook. Aug.-Oct. — Sent many years ago 

 by Sesse from Mexico to the Botanic Garden of Madrid ; not uncommon in 

 cultivation. 



3. G. hirsutula (Hook. & Arn.) : stem herbaceous, glabrous below, hairy 

 towards the summit; cauline leaves sessile and partly clasping, oblong, ob- 

 tuse, sharply serrate-toothed, the younger pubescent; inner scales of the in- 

 volucre glutinous, appressed ; the exterior tomentose-pubescent, squarrose ; 

 bristles of the pappus 2-3. — Hook. S{ Arn. ! hot. Beechey, p. 147, S^- suppl. 

 p. 351 ,• DC. j^rodr. 7. {mantiss.) p.27S. G. rubricaulis, DC. prodr. 5. p. 316. 



California, Capt. Beechey, Douglas! — Stem and elongated nearly simple 

 branches purplish. Leaves rigid, 1-3 inches long, narrowly oblong, the 

 lower oblong-spatulate, reticulate-punctate. 



4. G. rohusta (Nutt.): very glabrous; stem herbaceous; leaves oblong, 

 very obtuse, coarsely serrate, cordate-clasping ; involucre leafy at the base; 

 the scales produced into recurved-squarrose subulate-linear appendages; 

 pappus of 2 (or more?) bristles. — Nutt.! in trans. Amer. jMl. soc. {n. ser.) 

 7. p. 314. 



St. Pedro, California, Nuttall! April. — A very stout and robust species, 

 about 18 inches high, apparently biennial. Leaves about an inch broad, one 

 and a half [to 2 inches] long. Heads very large, more than twice the size of 

 those of G. squarrosa, which this species much resembles ; but the leaves are 

 broadest at the base. Nutt. 



5. G. squarrosa (Dunal) : herbaceous or nearly so, glabrous ; stem corym- 



