ÏRITICUM REPENS.— DOG-GRASS.
697
niño, Ital. ; Psia partza, Pol. ; Gramacanina, Port. ; Pyrei, Russ. ; Qwickrot,Swed.
mer.; Ant.; Austr.; Bata v. ; Ba-var. ; Belg. ; Bruns.; Dan.; Gall.;Fenn. ; Ferr. ; Form. Hop. Fr. ; Fuld.;Genev. ; Hamb. ; Hann. ; Hass. ;Lipp. ; Olden. ; Lusit. ; Pol. ; Cast.Borus. ; Borus. ; Ross. ; Suec. ; Wir-TEM. ; Herbip.; Wurceb. ; Bergius ;Brugnatelli ; Guibourt ; Piderit;
iiORUS. ; borus. ; koss. ; ouTEM. ; Herbip. ; Wurceb. ;Brugnatelli ; Guibourt ;Spielmann; Zarda.
A very common plant of Europe. [Tri-andria Digynia, Linn. ; Grarnineœ, Juss. ;Fig. Hist. Gram. 2, p. 17, t. 21)
The creeping shoots, improperly calledroots {Radix Graminis seu Graminis caniniseu alii), are employed; they are long,slender, nodose, articulated, smooth ; whit-ish or yellowish-white, inodorous, ofasweetand slightly saccharine taste when fresh ;and insipid or very feebly astringent whendried.
In the fresh state, dog-grass furnishesa mucoso-saccharine matter, which rendersit demulcent, though in a very inconsiderabledegree ; when dried, this matter, which iscontained in the medulla, disappears, andthen the envelope only remains, which com-municates to water a slightly astringentquality, particularly when the ebullition isprolonged.
The decoctions of dog-grass act princi-pally from the water contained in them,and on this account the popular employ-ment of them is of use.
SPECIES FOR PTISAN. (FuLD.)
R. Root of Dog-grass, four ounces.
Scorzonera,
two ounces.
Cut, and mix.
JUICE OF DOG-GRASS.
Succus Tritici. (Gall.; Hass.)
JR. Fresh Herb of Dog-grass,
sixteen parts.Bruise it in a stone mortar, adding gra-dually,
Water, one part.
Express the juice, set it aside, and filterit without heat through bibulous paper.
Hass. prescribes the root instead of theherb.
EXTRACT OF DOG-GRASS.
Extractum seu Mellago Graminis seu Tri-tici repentis. (Amst. ; Ant. ; Austr. ;Batav. ; Bavar. ; Dan. ; Ferr. ;Fuld. ; Hann. ; Hass. ; Lipp. ; Ox-
den. ; Pol. ; Borus. ; Sax. ; Herbip. ;Piderit: Swediaur ; VanMons)
R. Fresh Root of Dog-grass, six pounds.Having cut it finely, enclose it in a linenbag, and express strongly ; boil the residuefor an hour with
Water, eight pounds,
and express again. Mix the liquors, setaside for twelve hours, and having strainedthrough flannel, evaporate to the consis-tence of thick syrup. (Lipp.)
R. Rootof Dog-grass, bruised, 1 of each,Water, / one part.
After twelve hours' infusion, add
Hot Water, two parts,
then stir till cold, and express. Heat theresidue for several hours with twice itsweight of water, at a temperature of 45 or50 degrees of R., and express again. Mixthe liquors ; then clarify, and evaporate tothe consistence of an extract. (Van Mons)
R. Fresh Root of Dog-grass,
twelve pounds.Bruise it in a mortar, adding
Water, six pounds.
Express the juice, boil it for a lew mo-ments, and evaporate it, when strained, tothe consistence of honey. (Dan. ; Olden.;Pol.; Borus.; Sax.; Swediaur)
R. Fresh Root of Dog-grass, one pound.Spring Water, eight pounds.
Boil till reduced to one half. Strain thedecoction, and evaporate it to the consis-tence of an extract. (Hass. ; Piderit)
Austr. ; and Herbip. direct the root tobe boiled in a sufficient quantity of water ;the decoction to be set aside, decanted andevaporated to the consistence of thick honey.R. Root of Dog-grass, one part.
Boiling Water, eight parts.
Boil slowly for a quarter of an hour, andexpress ; boil the residue with
Water, four parts,
and express again. Mix the decoctions,and having decanted after suflicient repose,evaporate to the consistence of an extract.(Ant. ; Hann.)
Batav. prescribes twenty-four hours'maceration and two hours' boiling with tenparts of water; then a second ebullition oftwo hours with other eight parts of water.— Amst. directs the root to be boiled firstwith twenty then with fifteen parts of watertill reduced each time to one half. — Bavar.— twenty-four hours' maceration of onepart of root in four parts of water ; theaddition of four other parts of water, andan ebullition of twenty-four hours : then asecond ebullition of the residue with four4 U