(203 ) 
THE'SIUM* *. 
Li Innean Class and Order. Penta'ndria f, Digy'nia. 
Natural Order. Saxtala'ce.e, Dr. R. Brown. — Lindl. Syn. 
207. ; Introd. to Nat. Syst. of J3ot. p. 74. — Rich, by Macgilliv. 
p. 420. — Loud. Hort. Brit, p.532 . — El.eagni, Juss. Gen. PI. p. 
74. — Sm. Gram, of Bot. p. 86 . — Quernf.ales; sect. Lauri.we ; 
type, Santalace-'E ; subtype, Santauda! ; Burn. Outl. of Bot. 
pp. 523, 563, 573, & 574 .— Veprecula:, Linn. 
Gen. Char. Cah/x (figs. 1 & 2.) superior, of 1 sepal, internally 
coloured, divided half way down into 4 or 5 spreading segments, 
with intermediate notches, permanent. Corolla none. Filaments 
4 or 5, short, awl-shaped, upright, inserted into the base of each 
segment of the calyx, in the centre. Anthers roundish. Germcn 
(see fig. 3.) inferior, roundish, ribbed. Style thread-shaped, as 
long as the stamens. Stigma cloven. Drupa (fig. 4.) oblong, 
angular, dry, coriaceous, crowned by the indexed calyx. Nut 
roundish. — Dr. Brown describes a small tuft of hairs at the out- 
side of each stamen. Smith. 
The superior 4- or 5-cleft, permanent calyx ; ihe stamens with 
a small tuft of hairs ; and the inferior, somewhat drupaceous nut ; 
will distinguish this from other genera, without a corolla, in the 
same class and order. 
One species British. 
THE'SIUM LINOPHY'LLUM. Flax-leaved Bastard-Toad- 
Flax J. 
Spec. Char. Leaves strap-spear-shaped. Racemes branched. 
Bracteas three together. Tube of the Calyx very short. Fruit 
nearly globose. 
Engl. Bot. t. 247. — Curt. Brit. Entomol.vol. v. t.228. — Linn. Sp. PI. p.301. — 
Unit. H. Angl. (2nd ed.) p. 101. — Willd. Sp. PI. v. i. pt. n. p. 1211. — Sm. FI. 
Brit. v. i. p. 269. ; Engl F). v. i. p. 337. — With. (7tli ed.) v. ii p. 340. Gray’s 
Nat. Arr. v. ii. p. 204. — Lindl. Syn. p. 208. — Hook. Brit. FI. p. Ill) - — Silitli. FI. 
(Jxon. p. 414. — Relh. FI. Cant. (3rd ed.) p. 102, with a plate. — Purt. Midi. FI. 
v. iii. p. 21. — Walker’s FI. of Oxf. p. 68 . — Linaria adulterine, Ray’s Syn. 
p. 202. 
Localities.— On elevated chalky pastures; not common. — Oxfordshire ; 
Near old gravel-pits by the road side between Bayswater and Stanton St. John : 
W. B. — Berks; On the Downs at Streatley ; May 13, 1819: W.B. Chalk- 
banks near Hurley : Mr. Gotobed.— Bucks ; Chalk-banks near Morton: Mr. 
Gotohed. — Cambridgeshire ; On Gogmagog Hills; Triplow Heath; between 
Hinton and Fulbourn ; leversham; Bottisham ; between Linton and Hilder- 
sham ; Newmarket Heath; and Chippenham Moor: Rev. R. Relhan. Abun- 
dant near Snailwell, three miles East of Newmarket: Rev. J. Dalton. — 
Figs. 1 & 2. Calyx. — Fig. 3. Germcn, Style, and Stigma. — Fig. 4. Fruit, accom- 
panied by the bracteas at US' base. 
* Name of doubtful origin. Dr. Thornton says it is from Thesivs, who is 
supposed to have put this plant into the crown which he presented to Ariadne ; 
but l’rofcssor Burnett observes, that our plant cannot be the one to which Athe- 
ne's and Tim A cniDES refer, as its obscure flowers, devoid of elegance, would 
scarcely have caused it to be selected for such a purpose. 
+ See folio 48, note +. 
i From its leaves resembling toad-flax; hence called by Kay Linaria 
adulterine. 
