1146

ELEMENTS OF MATERIA MEDICA.

Gen. Char. — Flowers polygamous. Calyx. four to ^ luPetals four to five, either free or cohering to form a jcorolla. Stamens varvine - in rmmhpr. ton to two hu

five-to

Fig. 211.

Botany.toothed.

five-cleft corolla. Stamens varying in number, ten to two -Legume continuous, juiceless, two-valved .—Shrubs or trees. Thom ~stipular, scattered, or none. Flowers yellow, white, or rarely red, ca P*'tate or spiked (D. C.) J J

Species. 1. A. vera, Willdeno" ’L. D. Mimosa nilotica. Linn. EgyP ^ ta '\Thorn.—Spines in pairs. Branches anleaves smooth. Pinna two pairs;

eight to ten pairs, oblong-linear; "*

a gland between the pinnae. Flood ^in globose heads; heads about t«together, stalked, axillary. Legume mniliform, (D. C.)— Middling-sized tr ■Flower-heads bright yellow.—A nan'of Arabia, and of Africa from Senegto Egypt . Its fruit, termed EgHPj 1 ,and Senegal bablah ( bablah (PEgyP tedu Senegal, Guibourt), has been p"ployed in tanning and dyeing- ,succus acacia vera is the inspissa ^juice of the unripe fruit, and was ° aAcacia vera yields gum Arabic and als°

Acacia vera.

■abidh

Fig. 212.

merly used as an astringent,portion of the gum Senegal.

2. A. arabica, Willd. D. Acacia nilotica, Delile. Mimosa ar ' p -Roxburgh.— Spines in pairs. Branches and petioles pubescent. ■*

four to six pairs; leaflets ten to twenty Poblong-linear, with a gland beneathferior and often between the last P 11Flowers in globose, stalked, axillary, * u ^nate heads. Legume moniliform (D- .’^ ere dsmall tree. Flower-heads yellow.—Consi ^by Ehrenberg to be a variety of the P re . ce j,ja,species.—A native of Senegal, Egypt , ^Mahand India.—Its fruit, termed Indian . g{bablah de ITnde, Guibourt), is used for t& n °and dyeing. Probably yields part of the yArabic and East Indian gum. j e r.

3. A. Karoo, Hayne, Nees and E b er m „ . J( ,—Cape of Good Hope.—Said to yi eigum. g a jtl

Willdenow.—Arabia, Africa near Mogadore- ^by Forskal {FI. JEgypt. Arab , cxxiv.) to yield a gum, which is c °by the Arabs . Probably furnishes, in part at least, Barbary gum■ jjjch

5. A. Seyal, Delile. Egypt and Senegambia. Yields a g u,D ^ yer -

forms part of gum Senegal . The tears are white, hard, vitreous,miform. is

6. A. tortilis, Forskal , Nees, and Ebermaier.—Arabia. Its o

collected by the Bedouins of the desert. ^ g gun 1

7. A. Ehrenbergii, Hayne, Nees, and Ebermaier.—Arabia,is collected by the Bedouins of the desert.

A. arabica.

4. A. GUMMIFERA,