42 
NATURAL HISTORY OF PLANTS. 
A. Lebbek, Julibrissin odoratissima,’ montana,’ lebbekioides,’ &e., 
which have the flowers of 4. lophanta, but with a longer staminal 
Acacia Catechu, 
Fie. 31. 
* . 
corolla, and twisted into a spiral within 
the perianth before the expansion of the 
flower. We shall then have four new sec- 
tions to add to the genus Acacia, under the 
names of Vachellia, Lophanta, Albizzia, and 
Zygia, including twenty-five species from 
warm countries all over the world. Zygia is 
found in tropical Africa and Asia ;° Albizzia, 
in the same regions in temperate Asia, 
Java, Australia, and the neighbouring 
islands.° 
The flowers of Jnga” are like those of 
Albizzia, with indefinite monadelphous sta- 
mens." But the leaves are simply pinnate, 
and the pod is linear, straight or slightly 
curved, flat tetragonal or subcylindrical, 
coriaceous or almost fleshy, scarcely dehis- 
cent, with both dorsal and ventral sutures 
tube,’ nor for Zygia’ (figs. 84, 35), im which this tube 
is excessively developed, extending far beyond the 
Acacia alata. 
Fig. 32. 
Floriferous 
Inflorescence. often thickened prominent dilated and 
grooved longitudinally. 
branch. 
The genus consists of trees and shrubs 
1 W., Spec., iv. 1066.—A. speciosa W.. 
loc. cit., 1069.—Mimosa Lebbek L.—Albizzia 
Lebbek Brntu., in Hook. Journ., iii. 87.— A. 
latifolia Borv., loc. cit., 32. 
2 W., loc. cit., 1065.—Mimosa Julibrissin 
Scop., Del. Fl. Insurbr., i. 18.—IL. arborea 
Forsk., Eg.-Arab., 177.—Albizzia Julibrissin 
Dourazz., loc. cit. 
3 W., loc. cit., 1068.—Mimosa odoratissima 
L., Suppl. 487. — Albizzia odoratissima 
Hentu., loc. cit., 88.— A. micrantha Botv., 
loc. cit., 34. 
4 Junou., Tijdschr. Nat. Gliesch., x. 246.— 
A. vulcanica Korts., in Flora (1827), 705.— 
Inga montana JUNGH., Reis., 288.—Albizzia 
montana BrEntH., Pl. Jungh., 267. 
5 DC., Prodr., ii, 467, n. 187. —~ Albizzia 
lebbekioides BENTH., loc, cit., iii. 89. 
6 GriseBacn has already (FU. Brit. W. Ind., 
233), referred Albizzia to Acacia. 
7 BentuH., in Hook. Journ, iii. 92 (nec 
P. Br.).—EnpDu., Gen., n. 6836 ? 
8 DC, Mém. Légum., xii. t. 65; Prodr., 
ii. 440, n. 91, 92.—Brucr., Voy., t. 4, 5.— 
Perers., Mossamb., t. 1.—Ottv., Fl. Trop. Afr., 
ii. 361. 
9 Vent., Jard. Cels., t. 20.—LaBItn., Sert. 
Austr.-Caled., 67, t. 66, 67.—Jacg., Icon., 
t. 198.—Roxs., Pl. Coromand., t. 120-122. 
—Watt., Pl. Asiat. Rar., ii. t. 177.—Benta., 
Fl. Austral., ii. 421.— Harv. & Sonn. Fl. 
Cap., ii. 284.— Watr., Rep., v. 595; Ann, 
i, 266; ii. 457; iv. 457.—Oxtv., Fl. Trop. Afr., 
ii. 355. 
10 Prum., Gen., 18, t. 25.— W., Spec., iv. 
1004 (part.)—K., Mimos., 35.—DC., Prodr., 
ii, 482, — Spacn, Suit. a Buffon, i. 55.— 
Envu., Gen. n. 6837.— B. H., Gen. 599, 
u. 398. 
1 The lower part of the tube they form is 
often united for some distance with the base of 
the corolla tube, just as in Pentaclethra. We 
shall find this arrangement in all the remaining 
Mimosee. It does not usually occur in Acacia 
proper or in Albizzia. Organogenic investiga- 
tions can alone reveal the signification of the 
