PHANKROGAMIA 



599 



i>LKr>i UOSAK and AC^TA HOSAK from 7,'o.sv <ln i,ixc, mi,. AMYGDALA DULCIS and 

 AMYCHALA AMAUA from 7V//./1 /.s' <i m ii<i<.l.u I us. PRUNUM from Primus domesticus. 

 Pnrxi VIKOINIAXAE COUTKX from Prunus serotina. LAUROCERASI FOLIA from 

 /'/ anus laurocerasus. Cusso from Hagenia abyssinica. QUILLAIAK CORTEX from 

 Quillaja Saponaria. 



Order 12. Leguminosae ( 28 ) 



The common characteristic of all Leguminosae is afforded by the 

 pistil. This is always formed of a single carpel, the ventral suture of 

 which is directed to the 

 dorsal side of the flower 

 (Figs. 628, 631, 637). It 

 is unilocular and bears the 

 ovules in one or two rows 

 on the ventral suture. The 

 fruit is usually a pod 

 (legume), which dehisces by 

 splitting along both the 

 ventral and dorsal sutures 

 (Fig. 642). Nearly all Leg- 

 uminosae have alternate, 

 compound, stipulate leaves. 

 Many are provided with 

 pulvini (Figs. 236, 237), 



B 



io. ii-'. 1 . Acacia senetj'il. Flowering branch (not. si/.'). 

 (After A. MKYF.R and SCHVMANX). 



Fio. re's. Floral <lia-ram> of Miinos- 

 acea. .-1, Mimosa pud ten ; I:. 



tiyilmtltllli. (After KlCHLF.B.) 



which effect variation movements of the leaves and leaflets. 



Family 1. Mimosaeeae. Trees, and erect or climbing, shrubby 

 plants with bipinnate leaves. Flowers actinomorphic, peritamerous or 

 tetramerous. ^Estivation of sepals and petals valvate. Stamens 

 free, numerous, or equal or double in number to the petals. The 

 colour of the flower is due to the length and number of the stamens, 

 the corolla being as a rule inconspicuous. The pollen grains are often 

 united in tetrads or in larger numbers. The flowers are grouped in 

 spikes or heads. Embryo straight in the seed. 



