CHLO'RA* * 
Linnean Class and Order. OcTA'NDRiAf, Monogy'nia. 
Natural Order. Gentia'ne.e. Juss. — Lindl. Syn. p. 177; 
Tntrod. to Nat. Syst. p. 215. — Rich, by Macgilliv. p. 444. — Loud. 
Hort. Brit. p. 526 . — Gentia'nte. Juss. Gen. PI. p. 141. — Sm. 
Gram, of Bot. p. 106 . — Rota'ceve of Linnaus. 
Gen. Char. Calyx (fig. 1.) inferior, of 8 strap-shaped, pointed, 
spreading, permanent sepals. Corolla (fig. 2.) of 1 petal, salver- 
shaped ; tube shorter than the calyx, investing the germen ; limb 
in 8, rarely but 6, deep, equal, elliptic-oblong segments, spiral in 
the bud, longer than the tube. Filaments thread-shaped, short, 
from the mouth of the tube, as many as the segments of the limb, 
and alternate with them. Anthers strap-shaped, upright, shorter 
than the corolla. Germen (fig. 3.) superior, egg-oblong. Style 
cylindrical, rather longer than the tube, upright. Stigmas 2, ob- 
long, cloven. Capsule (figs. 4 & 5.) egg-shaped, with a furrow 
along each side, of 1 cell, and 2 valves with incurved margins. 
Seeds numerous, very small, angular, minutely granulated, inserted 
in many rows along the incurved margin of the valves. 
Distinguished from other genera in the same class and order, by 
an inferior calyx of 8, or 6, sepals ; a corolla of 8, or 6, deep 
segments ; and a capsule of 1 cell and 2 valves. 
One species British. 
CHLO'RA PERFOLIA'TA. Perfoliate Yellow-wort. Yellow 
Centaury. 
Spec. Char. Leaves egg-shaped, connato-perfoliate. Panicle 
forked, many-flowered. 
Eng. Bot. t. 60. — Hook. FI. Lond. t. 2. — Linn. Syst. Nat. (12th ed.) v. ii. 
p.267. — Huds. FI. Angl. (2nded.) p. 168. — Sm. FI. tirit. v.i. p. 413. — Engl. 
FI. v. ii. p. 218. — W ith. (7th ed.) v. ii. p.477. — Lindl. Syn. p. 179. — Hook. 
Brit. FI. p. 175. — Gray’s Nat. Arr. v. ii. p. 339. — Lightf. FI. Scot. v. i. p. 200. — 
Sibth. FI. Oxon. p. 123. — Abbot’s Fl.Bedf. p.86. — Pun. Midi. FI. v. i. p. 193. 
and v. iii. p. 355. — Relit. FI. Cant. (3rd ed.) p. 158. — Rev. G. E. Smith’s PI. 
of S. Kent, p.23. — FI. Devon, pp. 67 tv 153. — Perry’s PI. Varvicensis Select®, 
p. 34. — Mack. Catal PI. of Ireland, p. 36. — W'alk. FI. of Oxf. p. 108.— Black- 
stonia perfoliata, Huds. FI. Angl. (1st ed.) p. 146- — Centaurium luteum per- 
foliatum, Ray’s Syn. p. 287. — Blacks. Sp. Bot. p. 13. — Centaurium parvum 
luteum Lobelii, Johnson’s Gerarde, p.547. 
Locai.ities. — O n chalky, limestone, and clayey, or marly soils. — Not very 
uncommon. — Oxfordsh. Penlev Hangings: Dr. StnrHonp. About Maple- 
durham: Mr. A. R. Burt, 18-33. — Berks. Near Beading : Mr. Faudon. On 
a clayey soil in afield on the right hand side of the road going from Botley to 
Knsham, between the 3rd and 4th milestone from Oxford: Air. J. Binwkm,, 
1812. 1 found it in the same field in 1831. W. 15. In an old stone-pit between 
the old and the new roads from Oxlord to Enslium, nearly opposite to WythanT 
Fig. 1. Calyx and Pistil. — Fig. 2. Corolla and Stamens. — Fig. 3. Germen, 
Style, and Stigmas. — Figs. 4 ik 5. Capsule. — Figs. 1, 2, ik 3, highly magnified. 
* From Chloros, Gr. pale or yellowish green ; in allusion'jo the colour of its 
flowers. Dr. Hookkii. — It is nearly allied to Gentiana, from which it was first 
separated by Mr. Hudson, who gave it the name of Blackstonia, after AJ r. J. 
Bi.ackstone, an Apothecary in London, ami author of a Catalogue of Plants 
growing wild in the neighbourhood of Harefield in Middlesex, and a small vo- 
lume intituled, “Specimen Botanicum,” &c. — I.inn/f.us at first adopted Mr. 
Hudson’s name, but changed it afterwards to Chlora, an appellation it had 
received from Rv.neaui.me; in consequence of this Mr. Hudson gave up the 
title of Blackstonia in the second edition of his Flora, 
t See Adoxa Moschatellina, p. 42, notef. 
