(‘ 205 .) 
I'NULA* *. , 
Linnean Class and Order. Syngenf.'sia f, Polyga'aiia, 
Supe'rflu a %. 
Natural Order. Compo'stt.e § ; tribe, Corymbi'fer.e||, Jiiss. 
— I.indl. Svn. pp. 140 & 142.; Introd. to Nat. Syst. of Bot. pp. 
1.97 & 199. — Mack. FI. Hibern. p. 142. — Compo'sit.k ; subord. 
Cardua ck.k, Loud. Hort. Brit. pn. 520 &521. — Synanthe're k ; 
trihe, Corymbi'feu.f., Rich, bv Macgill. pp. 454 & 455. — Couym- 
bifer.k, sect. 2. .luss. Gen. PI. pp. 177 &. ISO. — Sm. Gram, of 
Bot. pp. 121 & 123.; Engl. FI. v. lii. p. 334. — Syringales ; sub- 
order, Astf.ros.k ; sect. Asterin.-k ; subsect. Asterian.u; type, 
Asterace e ; Burn. Outl. of Bot. pp. 900, 901, 920, 924, & 9 -6. — 
Compo'sit.e, Linn. 
Gf.n. Char. Involucrum f common calyx ) (fig. 1.) imbricated ; 
scales spreading, outer ones terminated by a leafy appendage. 
Corolla compound, radiant; florets of the disk (fig. 2.) numerous, 
perfect, tubular, with 5 equal segments ; florets of the ray (fig. 0 ) 
strap-shaped, 3-toothed, yellow. Filaments (see figs. 4 & 5.) 5, 
in the florets of the disk only, thread-shaped. Anthers united into 
a cylindrical tube, with bristles at their base (see tig. 5). (iermen 
(see figs. 2 & 3.) in all the florets fertile, oblong. Style (see fig. 5.) 
thread-shaped, cloven. Stigmas spreading, oblong, ralher obtuse. 
Seed-vessel none, but the unaltered calyx. Seed (see fig. 7.) linear, 
quadrangular. Pappus (see fig. 7.) roughish, simple. Receptacle 
(see fig. 8.) naked. 
The imbricated involucrum of many spreading scales, the outer 
ones terminated by a leafy appendage ; the anthers with 2 bristles 
at their base; the naked receptacle ; and the simple pappus ; will 
distinguish this from other genera, with radiant flowers, in the same 
class and order. 
The leaf-like scales of the involucrum will distinguish it from 
Limb dr da, and the simple pappus from Pulicuria, (t. 170). 
One species British. 
I'NULA HELE'NIUM. Elecampane. Scab-wort. Horse-heal. 
Spec. Char. Leaves clasping the stem, egg-shaped, somewhat 
toothed, wrinkled, downy beneath. Scales of the involucrum egg- 
shaped, downy. 
Engl. Bot. t. 1546. — Woodv. Mod. Hot. v. ii. p. 297. 1. 108.— Stepli. and Church. 
Mod. Bot. v. ii. t. 49. — Linn. Bp. l’l. p. 1236. — Hull.. El. Augb (2nded. ) p. 368. — 
Willd. Bp. PL v. iii. pt. in. p. 2089. — Sm, FI. Brit. v. ii. p. 891. ; Engl. FI. v. iii. 
p. 440. — With, (7th cd.) v. iii. p. 944. — Lindt. Syn. p. 143. — Hook. Brit. El. p. 
Site. — Lightf. El. Scot. v. i. p. 484. — Si’oth. Ft. Oxon. p. 255. — Abbot’s El. Bcdf. 
p. 183. — Davies’ Welsh Bot. p. 79. — l’urt. Midi. El. v. ii. p. 410. — Itelh. El. Cant. 
(3rd ed. ) p. 345. — Hook. El. Scot. p. 245. — El. Devon, pp. 139 & 160. — Winch’s 
El. of Northumb. and Durham, p. 54. — Walker’s FI. Oxf. p. 243. — Perry’s l’l. 
Fig. 1. Involucrum. — Fig. 2. A Floret of the Disk. — Fig, 3. The Gerincn, Sta- 
mens, Style, and Stigmas of ditto. — Fig. 4. A single Stamen. — Fig. 5. The same 
magnified. — Fig. 6. A Floret of the Hay. — Fig. 7. A Seed, with its Pappus. — Fig. 8. 
A vertical section of the Involucrum and Receptacle. 
* Said to be the same as Helenium, having sprung from the tears of Helen. 
Sir W. J. Hooked. 
+ See fob 91. n. +. t Sec fob 30. n. {. ? See fob 27, a. || See fol. 36, a. 
