BUPLEU'RUM* *. 
Linnean Class and Order. Penta'ndriaI, Digy'niA. 
Natural Order. Umrei.u'ferte, Juss. Gen. PI. p. 218 — 
Sm. Gram, of Bot. p. 132.; Lindl. Syn. p. 111.; Introd. to Nat. 
Syst. p. 4. ; Rich, by Macgilliv. p. 463. ; Hook. Brit. FI. p. 
112 — 114. ; Loud. Hort. Brit p. 517. 
Gen. Char. Flowers (fig. 1.) all regular, perfect and prolific. 
Calyx none. Petals 5, equal, roundish, entire, very short, with a 
broad involute point. Filaments 5, thread-shaped, spreading rather 
beyond the corolla. Anthers roundish. Gcrmen inferior, egg- 
oblong, furrowed. Styles 2, very short, spreading, not extending 
beyond the circumference of their broad, tumid, rather depressed, 
bases. Stigmas simple, minute. Floral Receptacle none, unless 
the dilated margin of the tumid bases of the styles may be taken 
for such. Fruit (figs. 2 & 3.) egg-oblong, blunt, a little com- 
pressed at the side, crowned with the very short permanent styles. 
Carpels (seeds, Linn, and Sm. 7 (figs. 5 & 6.) with 5 equal and 
winged, filiform and sharp, or slender and obsolete ridges, of 
which the lateral ones are marginal. Interstices ( channels ) with 
or without vittce (receptacles of coloured oily matter). Seed taper, 
convex, flattish in front. Involucres various. Flowers greenish- 
yellow. Leaves entire. 
The broad wedge-shaped, very short, involute petals ; the egg- 
shaped, blunt fruit, with sharp prominent ribs, and flat interstices ; 
and the short styles swollen at the base ; will distinguish this 
genus from other umbellifera, with solid, unarmed, wingless, la- 
terally compressed fruit. 
Three species British. 
BUPLEU'RUM ROTUNDIFO'LIUM. Thorow-wax J. Hare’s 
ear. 
Spec. Char. General involucrum wanting. Leaves perfoliate, 
roundish egg-shaped. Partial involucrums mucronate. 
Engl. Bot. t. 99. — Linn. Sp. PI. p. 340. — Huds. FI. Angl. (2nd ed.) p. 111. — 
Sm. FI. Brit. v. i. p.292. Eng. FI. v. ii. p. 93. — With. (7th ed.) v. ii. p. 363. — 
Gray’s Nat. Arr. v. ii. p. 526. — Lindl. Syn. p. 120. — Hook. Brit. FI. p. 124. — 
Sibth. FI. Oxon.p.92. — Abbot’s FI. Bedf. p.57. — Purt. Midi. FI. v.i. p. 148. — 
llelh. FI. Cantab. (3rd ed.)_ p. 111. — Perry’s PI. Varvic. Select, p. 25. — Walk. 
FI. of Oxf. p. 84. — Bupleurum perfoliatum rotundifolium annuuni, Hay’s 
Syn. p. 221 .—Perfolidta vulgdris, Johnson’s Gerarde, p.536. 
Localities. — In corn-fields, especially on a chalky soil. Not common. — 
Oxfordshire; Parks; Southleigh ; and Middleton Stoney : Dr. Siethoiu-. 
Fig. 1. A Flower. — Figs. 2 6c 3. Fruit entire. — Fig. 4. A transverse section 
of ditto. — Figs. 5 & 6. Separate Seeds. — Fig. 7. A Seed cut to show the albumen 
and situation of the embryo.— Fig 8. Embryo.— All, except fig. 2. magnified. 
* From bos, Gr. an ox, and pleuron, Gr. a rib ; from the ribbed leaves in 
some of the species. Dr. Hooker, in Br. FI. 
f See Anchusa sempervirens, p. 48, note f. 
t From the stem waxing, i, e. growing thorow, or through, the leaves. 
