DICOTYLEDONES : POLYPETAL.E : CALYCIFLORyE. 



6:^ 



lomentum, with transverse septa, dividing into segments. Cotyledons leafy, 

 epigaeal. 



Hippocrepis, the Horse-shoe Vetch, and Coronilla are common in meadows ; 

 Ouohryclm mtiva, the Sainfoin, is cultivated. Arachis hypogim, the Earth- 

 Almond or Ground-Nut of tropical America, ripens its fruits in the earth. 

 Dexvtodium gyrans, the Telegraph-plant, has motile leaflets. 



Tribe 8. Viciece. Stamens diadelphous : legume unilocular ; cotyledons 

 hypogean; leaves paripinnate and usually cirrhose (see Fig. 28 C). 



Vicia sativa, the Vetch, and V. Faba, the Bean, are cultivated : other species 

 occur wild. Pisum sativum and arvense, the Pea, are cultivated. Lena esculenta, 

 the Lentil, belongs to Southern Europe. Various species of Lathyrus (inch 

 Orobus) occur wild in woods : L. odoratun and others are cultivated. 



Tribe 9, Phaseolea. Stamens diadelphous : legume unilocular ; cotyledons 

 usually epigean, but not leafy : leaves usually imparipinnate, frequently ternate. 

 Mostly climbing plants with twining stems. 



Fhaseolus vulgaris, the French Bean, and P. multijiorus, the Scarlet Runner, 

 are cultivated. Wistaiia {Glycine) chinemis is an ornamental climber. Phy- 

 sostigma is the Calabar Bean. 



FiO. 436.— Flower of a Cassia : 

 Jr calyx ; c corolla ; a stamens ; a' 

 the central shorter ones ; / ovary. 



F.G. 437.— Flower of an 

 Acacia (mag.) : fc calyx ; c 

 corolla ; st stamens, with 

 (an) anthers ; n stigma. 



Tribe 10. Dalbergiece. Stamens mono- or dia-delphous : legume indehiscent ; 

 cotyledons fleshy. 



Pterocarpus. Dipteryx odorata, the Tonka Bean 6t South America, contains 

 coumarin in the seed. 



Sub-order 2. C^salpinie^. Flower dorsiventral, but not papilionaceous 

 (Fig. 327 B and Fig. 436) ; petals imbricate so that the posterior petal is 

 overlapped by those anterior to it ; stamens ten or fewer, free, more rarely 

 connate : the legume is frequently divided by transverse septa, and is in- 

 dehiscent : flowers in panicles or racemes : seeds often albuminous. 



Gleditschia triacanthos and other species are culivated for ornament. Cercis 

 Siliquastrum, the Judas tree, has rounded leaves. The wood of Ciemlpinia 

 hrmiliensi* is known as Pernambuco or Brazil wood. Hn3matoxylon, Cassia, 

 Bauhinia, Tamariudus, and Ceratouia [C. Siliqua, the Carob-tree) are other 

 well-known genera. 



Sub-order 3. Mimose.e. Flowers regular; petals with valvate aestivation 



