THE CINCHONA TRIBE.
989 “
Tliis
Cinchona Loxa alba.—White Loxa Bark.
Quinquina blanc de Loxa, Guibourt.
1,1 its <r e * S in the Crown or Loxa cinchona of commerce; with which it agrees
*>as Cuii' 1 *! appearance, being essentially distinguished by its whitish epidermis. Italso t„ ,, ei 'able resemblance to the quilled Huamalies with a whitish epidermis, as
10 Carthagena bark.
B. Yi
1 ' : ^ L0W Cinchona Barks, with a whitish or yellowish-J^pieermis .—These harks correspond to, and have been con-e with, the Calisaya or Royal Yellow Bark.
Cinchona de Carthagena dura.—Carthagena Hard Cinchona.
(Bark of Cinchona cordifolia).
o V * 0 n y
ltla i Bergen. Quina amarilla, Mutis. Quinajaune, Huftiboldt.
PN
l| N ^, ’ tyumu umuruiu, ±*xu tia.
1 0Ta ^ Rv —-See Cinchona de Carthagena fibrosa.due. Y" This bark is satisfactorily proved (si
ly proved (see the evidence at p. 985) to be the
Sub
t; , ’ l,t 70 1bs.
RCE -—It is imported in drum-like serons of about 80 lbs. nett, or in half chests
f t*L Character. —Coat thin and soft, or wanting ; longitudinal furrows irre-
bf;s c ^^ Pr ' sur f a ce uneven or splintery ; colour du11 ochre-vellow (Bergen)
Skills var^ I0N .'—R occurs in fine, middling, and thick quills, and in flat pieces. The1 in f' ln meter from three to eight lines, in thickness from half to one and a half
f s Uvj s . from five to nine, rarely to fifteen inches. The flat pieces are more or
, r,| >n a | arched, or warped (sometimes like pieces of dried horn) in drying, and are1,,c hes ] * tot « o inches broad, two to seven lines thick, and four to eight, rarely to twelve"^at ciu-L-^' ^he coat, which is usually more or lesss rubbed off, is thin, soft, some-" J rts f ’ laminated, with irregular longitudinal furrows ; transverse cracks and
l'""artoH Ve T rare - The epidermis is whitish, yellowish white, or ash gray. In thejR n ot We observe, in the outer surface of the cortical layers, irregular longitudinal,j°"e<l 0 V f r ^ deep, furrows. The inner surface is smooth or splintery, frequently hol-° ll -'Ttu(] 1, ’ -The prevailing tint of the cortical layers is usually dull ochre-yellow. The^'atery 113 fracture (which is with difficulty effected) is uneven, short, and coarse-ar| i] > Ibe transverse fracture is short-splintery. The taste is moderately bitter,C 0j ,^ Hl y astringent. The powder is cinnamon-coloured.
Th e act a l Varieties.—N o commercial varieties of this are known.
5 l 3 -r\?[, ar ,i!l 0 y ena brown bark (Quinquina Carthagena brun, Guibourt) is probably only" bite e , •’, * 16 pieces are twisted, very hard, of a chocolate-brown tint, with a ycllowish-C 0!a ^ IUerm is.
• 1 iittl e ° S .- Tl0N- —Guibourt says, that the Carthagena yellow hard Cinchona containsC,Bc hon a C1 iV c * 1 ? n ia» and scarcely any quinia. The following are the quantities of thealkalies, according to Von Santen, and by Goebel and Kirst:—
V One lb. of Barli. Cinchonia.
" ^ a nt en S I. Quills and flat pieces (from Cadiz in 1814) 30 grs.i 2. Flat pieces (from Curasao in 1806). 36 grs.
Goebel
Sulphate ofQuinia.
32 grs.
5 grs.
T|>e b arl5
and Kirst found 56 grs. of Quinia, and 43 grs. of pure Cinchonia.
■■Urn. ( g e ^alyzcd, under the name of Carthagena Cinchona, by Pelletier and Caventou ''■ 96), £, Fa arm. vii. 101) was Carthagena brown Cinchona (Guibourt, Hist, des Drog.^ a s Ve,,, i' e constituents were similar to those of red cinchona. The resinoid matterabundant.
miw AMU —Very few cryptogamia are found on this bark. The following are,'" ncd b y Bergen: —
n °ides . ;p ®: — Trypethelium variolosum; Thelotrema bahianum; Pyrenula port -• discolor; Parmelia melanoleuca; Usneaflorida 5 Cinchona.