(- 1-13 ) 
TORDY'LIUM* *. 
I.innenn Class and Order. Penta'ndria f, Digy'nia. 
Natural Order. Umbelli'fkr. «+> J uss. Gen. PI. p. 218. — Sin. 
Gram, of Bot. p. 132. — Lind!. Syn. p. 111.; Introd. to Nat. Syst. 
of Bot. p. 4. — Rich, by Macgilliv. p. 463. — Loud. Hort. Brit. p. 
517. — Don’s Gen. Syst. of Gard. and Bot. v. iii. p. 235. — Mack. 
FI. Hibern.p. 113. — Hook. Brit. FI. (4th ed.) p.408. — Umbellate, 
Linn. — Rosales; sect. Angelicin.*; type, ANGELicACE.Ejsubty. 
Angelicidaj; Burn. Outl. of Bot. v. ii. pp. 614, 770, 773, & 774. 
Gen. Char. Flowers more or less perfectly separated ; those of 
the circumference fertile. Calyx (see fig. 1.) of 5, unequal, deci- 
duous or permanent teeth. Corolla (fig. 2.) of 5, inversely heart- 
shaped petals, with indexed points ; the outer ones radiating and 
bifid. Filaments (see fig. 2.) 5, thread-shaped, spreading, as long 
as the smaller petals, often wanting in the radiant flowers. Anthers 
roundish. Germen (see fig. 1.) inferior, egg-shaped, rugged or 
bristly, transversely compressed. Styles (see fig. 1.) 2, thread- 
shaped, upright, swelling at the base, subsequently spreading, de- 
ciduous; wanting in the central flowers. Stigmas simple. Floral 
Receptacle none. Fruit flatly compressed from the back, sur- 
rounded by an accessory, thick, often crenated margin. Carpels 
with 5 very slender ridges, 3 of which are dorsal, and at equal 
distances, and 2 lateral, and contiguous to the thickened margin, 
or covered by it. Interstices ( channels J with from one to three 
filiform vittce. Seed flat. — Universal and partial involucrums of 
many leaves. 
The dorsally compressed fruit , with an accessory, thick, often 
crenated margin ; the carpels with very slender ridges, 3 of which 
are dorsal and equidistant, and 2 lateral and contiguous to the 
thickened margin ; the channels with from one to three filiform 
vittce; and the flattened seed; will distinguish this from other 
genera in the same class and order. 
Two species British. 
lORDVLIUM MA'XIMUM. Great Hart-wort. 
Spec. Char. Two outer petals of the flowers of the ray each 
with 2 equal lobes. Iuvolucrum linear, shorter than the umbel. 
Fruit with the thickened border scarcely notched, and, as well as 
the disk, rough with appressed hairs. Channels with 1 vitta. 
Engl. Bot. t. 1173.— Jacq. FI. Aust. t. 112.— 11,11. in Ray’s Syn. p. 206.— Tourn. 
Int. p. 320. — Linn. Sp. Pi. p. 345. — Willil. Sp. l’l. v. i. pt. II. p. 1382. — Sm. FI. 
Blit. v. i. p. 295. ; Engl. FI. v. ii. p. 105.— With. (7th ed.) v. ii. p. 364.— Gray’s 
Nat. Arr. v. ii. p. 521.— Lindl. Syn. p. 115.— Hook. Brit. FI. p. 117.— Do Caml. 
Prod. v. iv. p. 198. — Don’s Gen. Syst. of Gard. and Bot. v. iii. p. 346. — Maer. Man. 
Brit. Bot. p. 103.— Sibtli. FI. Oxon. p. 94. l’urt. Midi. FI. v. iii. p. 27.— W alker’s 
Fig. 1. Germen, Calyx, and Pistils. — Fig. 2. Corolla. — Fig. 3. A separate 
Stamen. — Fig. 4. Fruit. — Fig. 5. Transverse section of a Carpel. 
* Tordulion, Or. of Dioscosidbs ; said to be from tornos, Gr. a lathe; and 
illo, Gr. to turn ; from the nearly circular fruit. 
+ See folio 48, note f. J Sec folio 235, a. 
