988
ELEMENTS OF MATERIA MEIHCA.
Cl ( ]jsti' |ft
with a wliite micaceous epidermis: these, which are probably the produce oy ;nil
species of Cinchona , constitute the quinquina rouge a epiderme blanc et micace t<7 j|, e dCarthagene rouge, 2 nd ed.) of Guibourt (Hist, des Drog. ii. 92), and will beamong- the White Cinchonas. „ IT . , • , „«. n ill E'^ lisil
The quilled red bark, called by Guibourt Red Lima Cinchona, is unknown n
commerce. ... . • l been P®' 1 *
The consumption of red cinchona being very small, but little attention has j 4 ttorto it, and no distinctions are made of it, except into the quilled and the fiat ; 1being sub-divided into coated and uncoated. ..
Composition.— According to Pelletier and Caventou ( Journ. de Pharm • »“•• Apitiobark contains superkinate of cinchonia, superkinate of quina , kinate of lime , red' c a , 1( |soluble red colouring matter (tannin), fatty matter, yellow colouring matter, ' l 'Jstarch. Soubeiran (Traite de Pharm. i. 603) states, that one lb. of deep-red - C c p, (l iii a >yields two drachms of sulphate of quina and one drachm of sulphate ol C1 0 f nni ,,iltvbile one lb. of pale-red cinchona yields a drachm and a half of the sulphateand one drachm of sulphate of cinchonia. , j |V V«°
The following are the quantities of cinchona alkalies obtained from this bar .p^gtp.Santen (Bergen , Monogr. Platte 1 ), by Michaelis, and by Goebel and hirst (Waarenk. i. 72) :—
Von Santen
r 1. Fine quills of fresh appearance (fromCadiz in 1803)...
2. Large, broad, Hat pieces, of freshbrownish-red appearance (same chest)..
3. Middling quills, from their pale ap-pearance probably 20 years older thanthe previous (from Cadiz in 1819) ....
4. Broad flat pieces, not so thick as No. 2 ,
(same chest as No. 3).
5. Middling quills, heavy, old (from
London to Hamburg in 1815: notmet with now) .
6 . Thicker, heavier quills (same chest) .
7. Thick flat pieces, quills, and frag-
ments (above 80 years in Hamburga pale kind)..
Michaelis.. ...
Goebel and Kirst (flat pieces) .
Cinchonia.
Sulphate
Quinia.
70 grs.
77 grs.
90
15
97
31
80
30
150
ii
184
9
20
7
32
—
65
—
y,lima-
fi-t
40
acco'''
Cryptogamia. —The following are the cryptogamic plants on red cinchona,ng to Fee (Cours d’Hist. Nat. ii. 265):— ^,71
Lichenes. —Opegrapha Bonplandi: 0. farinaceaj Graphis dcharii; \ g ^ re
G. frumentaria; Pyrenula verrucarioides; Verrucaria sinapisperma : ■*
urceolare; T. terebratum ; T. myriocarpum and Lecidea conspersa.
Sect. 2 nd . Genuine Cinchona Barks, with a whitish or yELL °/ lfl ^micaceous Epidermis (Cinchona alba, Auct.)—The -white cinchona ^are usually regarded, in English commerce, as spurious or bastardof bark. They are distinguished by an epidermis which is na nwhitish or pale yellowish, micaceous, smooth, or not cracked, andrent to the cortical layers. They yield little or no cinchonia and q uOne of them contains a peculiar vegetable alkali ( aricina ). aC -
«. Pale Cinchona Barks, with a whitish Epidermis .—quainted with only one variety of this, viz.; the White Losca Ginof Guibourt (Hist, des Drog. ii. 94); unless, indeed, we consider s0 ^ 0? .(-i/the young Iluamalies barks as belonging to this division (see Gray-Hnamalies Bark, p. 984).