4. Acacta.] 41. MIMOSACEJE. 



or globose heads, usually 5-merous. Petals united below. 

 St. inserted on a small hypogynous disc numerous, free, far 

 exsert. Pod usually flat and dry (turgid in spp. 1-3) 

 dehiscent or not, not septate or jointed (moniliform in A. 

 arabica) . The rachis often bears one or more glands. 

 A Fls. in globose heads. 



L Erect trees or shrubs. 

 Spines stipular only. Pod swollen . . .1. Farnesiana. 

 Spines £-2'' long on stem and branches. Pod 

 moniliform ....... 2. arabica. 



2. Prickly climbers. Heads panicled. 

 Lflts. 15-25 prs., §-|* long. Pod fleshy . . 3. concinna. 

 Lflts. 10-40 prs. h-rs" long, Pod flat dry .4. Ccesia. 

 Lflts. 4(0-60 prs. ji'h" ^ on S- Pod flat dry . 5. pennata. 

 B. Fls. in spikes. Erect trees. 



1. Lflts. small lignlate. 



Bark white. Corolla scarcely exceeding the 



calyx 6. Suma. 



Bark black. Corolla l£-3-times as long as calyx 7. Catechu. 



2, Lflts. oblong |- 1^ . . ..-.*. . 8. lenticularis. 



I. A. Farnesiana, Willd. Gabur, 8. 



is. shrub or small tree 12-2P ft. with 4-8 prs. of pinnae and 

 10-20 prs. of minute crowded leaflets. A pair of stipular 

 spines §•§" long at base of each leaf. It bears very fragrant 

 heads of deep yellow fls. on axillary penduncles f-1* long. 

 Pod 2-3" brown thick with somewhat pulpy mesocarp. 



Common, plinted and semi-naturalized. Fls. Aug.-March. Fr. Jany.- 

 July. Evergreen. 



2. A. arabica, Willd. Babla, Babur, K.,S.; Babul, R. 



A shrub or small black -barked tree armed with long 

 straight white thorns (often thornless, when old), with 3-6 

 prs. of pinnee, 10-20 prs. of crowded leaflets |-J*, and heads \" 

 diam. of yellow fls. on short axillary fascicled peduncles. 

 Pod whitish tomentose 3-9" long. 



Waste ground, ry. embankments. °tc, occasional. Often planted and 

 naturalized on cotton soil in S. P. Fls. Auo.-Dec Fr. Ju:iy.-March. 

 Evergreen. Yields a Gum-arabic. Pods form a good cattle fodder. 



287 



