350 COMPOSITE. mienium. 



H— H— Heads solitary or few on long (sometimes foot long) peduncles, terminating the stem or 

 lax branches; disk depressed-globose or almost hemispherical: leaves en ire. 

 *s^H. Bigelovii, Gray. Almost glabrous : stem simple or loosely branched, 2 or 3 feet high : 

 leaves from narrowly to oblong-laneeolate, the radical oblong-spatulate, elongated : pedun- 

 cles mostly slender: disk of the' head three-fourths globose at maturity, two-thirds to tliree- 

 fourths inch in diameter, equalled by the rays : palese of the pappus ovate-lanceolater or 

 subulate and awn-pointed, considerably shorter than the corolla. — Pacif. R. Rep. iv. 107, 

 Proc. Am. Acad. ix. 205, & Bot. Calif, i. 393. — Wet ground, California, not rare from Lake 

 Co. to San Bernardino Co. ; first coll. by Bir/eloiv. 

 H. Bolanderi, Gray. Somewhat furfuraceous-pubescent : stems stout, often simple, 1 or 2 

 feet high : leaves oblong to ovate-lanceolate, or lowest obovate : peduncles thick, commonly 

 upwardly enlarged and fistulous: disk of the head decidedly broader than high, inch or 

 more wide: rays often inch long: pales of pappus lanceolate or subulate, with slender 

 awn, almo.st equalling disk-corolla. — Proc. Am. Acad. vii. 358, ix. 204, & Bot. Calif. 1. c. — 

 Low grounds near the coast, northeastern part of California, Bolander, &c. 



§ 3. Leptopoda. Rays neutral, very numerous, mostly surpassing the linear 

 bracts of the involucre, cuneate, 3-5-cleft, yellow, as are also mostly the flowers 

 of the broad disk : pappus of thin-scarious wholly nerveless sometimes lacerate or 

 fimbriate paleos : simple-stemmed perennials (sometimes biennials ?), from slender 

 or filiform rootstocks ; virgate stem continued into an unusually long solitary 

 peduncle, the apex ' of which is mostly turbinate-tliickened under the large and 

 broad head : leaves nari'owly or not at all decurrent. — Gray, Proc. Am. Acad, 

 ix. 204. Leptopoda, Nutt. Gen. ii. 174; Ell. Sk. ii. 445; Torr. & Gray, Fl. ii. 

 386, excl. § 2. 



* Receptacle ovate-conical and the disk semi- to sub-globose: involucre soon reflexed and the ravs 

 (over half-inch long) drooping in the manner of Eulithnium : nearly glabrous, ^^■ith somewhat 

 elongated-lanceolate mostly entire cauline leaves, but no conspicuons radical tuft: akenes more 

 or less liair}' on the ribs. 



H. Curtisii, Okay. Stem slender, 2 or 3 feet high : disk of the head half-inch in diameter, 

 surpassed by the rays: pabse of the pappus almost entire, obovate, muticous, about one 

 third the length of the disk-corolla. — Proc. Am. jVcad. 1. c. Leptopoda mtegrifolia, JI. A. 

 Curtis in Torr. & Gray, PL ii. 387, under L. IrevifoUa, var. — Near Raleigh, N. Carolina, 

 M. A. Curtis. 

 ^*H. flmbriatuin, Gray, I.e. Less slender: disk two-thirds or three-fourths inch broad, 

 equalled by the rays : p.-ilca; of the pappus broad, dissected from summit to beyond the 

 middle into many capillary bristles. — Gaillardia Jimbriata, Michx. Fl. ii. 142. Lptopoda 

 Jimbriata, Torr. & Gray, Fl. 1. c. — Low pine barrens, Florida and Texas. 



* * Receptacle and disk depressed-hemispherical or flatter : involucre and rays merely horizontal 

 or tardily recurved : flowering stem usually from a rosulatc cluster of radical leaves : cauline 

 leaves gradually diminished upward, the uppermost usually bracteiform and subulate, all some- 

 what fleshy. 



H. Nuttallii, Gray, 1. u. A foot or more high, with nearly the foliage of the preceding 

 and head of the following : ovary .ind akene glabrous and gLindular-atomiferuus : paleai of 

 the pappus oval or oblong, more or less erose or lacerate, muticous, or some of them aristel- 

 la,te. — Leptopoda Helenium, Nutt. Gen. ii. 174, excl. syn.? L. dciiticiilata, Nutt. Trans. Am. 

 Phil. Soc. vii. 372. L. decitrrens, JIacbride in Ell. Sk. ii. 446, form with denticulate leaves. 



— Damp ground, S. Carolina to Florida aud Louisiana. 



Var. incisum, Gray, 1. c. Leaves incised or sinuatc-iiinnatifid in the manner of the 

 following. — Leptopoda iiicisa, Torr. & (iray, Fl. ii. 3S7. — ticorgia, Le Conte. 

 — - H. vernale, Walt. Somewhat puberulent or tomentulose and vi.^cidulous, a foot or two 

 high: principal leaves in a radical tuft, spatulatc-laiicenlate i>r narrower, 4 to 6 inches long, 

 from repand-denticulate to incisely pinnatifid ; upper cauline small, liuoiir-subulate and 

 bruct-like: disk of the head two-thirds or threp-fourtbs inch broad, yellow: akenes pubes- 

 cent: palea; of the pajipus obovate or spiitiilate, with bircr.ite or fimbriol.ate-tnothed summit. 



— Walt. Car. 210; Gray, I'roc. Am. Acad. ix. 205. Leptujfjuda pabcrala, Macbride in Ell. 



