LEG UMIN0S2E-MIM0SE2E. 



43 



from the hot districts of America. The flowers are very variably 

 arranged on the stems. 1 



Calliandra? on the contrary, has decompound bipinnate leaves, 

 though with the flowers of Tag a. But the fruit is a straight or 

 somewhat bowed pod, whose two valves separate elastically, the 

 apex, bending back towards the base. The stamens are usually very 

 numerous, rarely only ten or fifteen in number. Some eighty species 

 of this genus are known, 3 trees or shrubs from tropical or sub- 

 tropical Africa ; one species 4 is found in India. The flowers are 

 always grouped in capitula (fig. 36), terminating axillary peduncles 

 or collected into terminal racemes. 



Lysiloma? with the habit of Mimosa, and the oligandrous flowers 

 of Calliandra? has bipinnate leaves, and an inflorescence of capitula 



tube common to the base of the androceum and 

 the corolla, and will tell us whether it be not of 

 receptacular nature. It was no doubt this 

 arrangement that led A. Richard to refuse 

 to consider as a calyx the organ generally 

 known as such and inserted considerably below 

 the petals and stamens. 



The pollen of Inga anomala has been de- 

 scribed by H. Mohl {Ami. Sc. Nat., ser. 2, hi. 

 230, 342, t. xi. fig. 43), as having each mass 

 composed of eight grains placed on a single plane 

 and porous at the angles, with a lot of little 

 viscid cells collected at the point of the mass. 

 There are eight masses in each anther, and the 

 point of each looks towards the centre of the 

 cell. 



* The inflorescence is the chief character 

 employed to group the species (some hundred 

 and fifty) of this genus into sections. Bentham 

 admits the five following : — 



I. Euinga. — Flowers collected into lax 

 oval spikes, short or elongated, interrupted 

 towards the base. Flowers large or very large, 

 sessile or shortly pedicellate, villose or tomentose. 

 Calyx campanulate or tubular. Pods thick with 

 dilated edges, often even broader than the faces 

 of the valves. Species about fifty (Velloz., 

 Fl. Mum., xi. t. 3, 12, 14, 21.— Vahl., in Act. 

 Soc. Hafn., ii. t. 10.— K., op. cit., t. 11-14. — 

 Hook., in Bot. Mag., t. 5075). 



II. Bxeudinga. — Inflorescence of Euinga. 

 Flowers a fair size, sessile or very shortly pedi- 

 cellate, glabrous or pubescent. Calyx of Euinga. 

 Pod flattened, usually pretty broad, with 

 very thick edges. Species about forty (Vahl., 

 Eclog. Amer., iii. t. 24. — Presl., Symb. Bot., 

 i. t. 42 ; ii. t. 58. — Lem., Jard. Fleur., iii. t. 

 399). 



III. Burgonia. — Flowers sessile, small, nu- 

 merous, glabrous, or sub-pubescent, in cylindrical 

 shortly pedunculate, usually axillary spikes. 



Calyx campanulate, much shorter than corolla. 

 Species about fifteen (Attbl., Gnian., ii. 941, t. 

 358.— Velloz., FL Flum., xi. t. 5, 8, 9). 



IV. Diadema. — Flowers sessile or more rarely 

 pedicellate, small, narrow, glabrous. Inflores- 

 cence of globular capitula, with long peduncles. 

 Species about ten (Velloz., op. cit., xi. t. 44, 

 45. —Seem., Bot. Her., t. 23). 



V. Leptinga. — Flowers with slender, well 

 developed pedicels, usually longer than calyx, 

 unless this be very large ,• small, glabrous, 

 rarely pubescent, in umbels, on sub-globular 

 receptacles. Species about twenty (Velloz., 

 op. cit., t. 10, 27. — Pcepp. & Endl., Nov. Gen. 

 et Spec, iii. t. 289). 



For the species generally, see K., Mimos., 

 loc. cit. — H. B. K., Nov. Gen. et Spec, vi. 

 248.— Walp., Rep. v. 623; Ann. i. 268; ii. 

 459 ; iv. 635. 



2 Benth., in BZooTc. Journ,, ii. 138. — B. II., 

 Gen., 596, n. 393. — Anneslea Salisb., Pared. 

 Bond., t. 64 (nee Wall.). — Clelia Casar., Nov. 

 Stirp. Decad., 83. — ? Codonandra Kakst., Fl. 

 Colmnb., 43, t. 122. 



3 Jacq., Icon. Ear., iv. t. 632, 633.— DC, 

 Mem. Begum., t. 68. — K., Mimos., t. 17, 19, 

 20, 22, 32.— Nees, in Nov. Act. Nat. Cur., xii. 

 t. 5. — Colla, Hort. Ripul., ii. t. 9. — Pcepp. & 

 Endl., Nov. Gen. et Spec, iii. t. 290. — Bi.ntii., 

 Sidph., 1. 11. — Seem., Bot. Her., t. 22.— Kabs i .. 

 Fl. Colmnb., 79, 103, 121.— Bot. Beg. t. Its, 

 129,721; (1819), t. 41.— Bot. Mag.,\,. 2651, 

 4188, 4500, 5181.— Paxt., Magaz., xi. 1 17, 

 icon. — Lem., in Jard. Fleur., t. 805. — WiiP., 

 Rep., v. 599 (part.); Ann., i. 266; ii. I".s ; 

 iv. 634.— Oliv., Fl. Trop. Afr., ii. 356. 



4 I. umbrosa Wau ., PI. . Isiat. Bar., ii. (. 1 2 I . 



5 Bekth., in WooJc. Journ., iii. 82, — 1>. II., 

 Gen,, 595, n. 392. 



6 It has often only from twelve l" fifteen 

 stamens. 



