68 Tiliaceae^ Malvaceae 



zygomorphic. Calyx and corolla usually 5-merous, sepals 

 mostly valvate in bud. Stamens co or in two whorls, 

 the inner of which is branched. Carpels (2-00 ) each 

 with i-co anatropous ovules with two integuments. 



Suborder Malvineae. Sepals mostly valvate : 

 mucilage present. 



Fam. I. TiLlACEAE. Mostly trees with entire or 

 toothed stipulate leaves. Mucous-tubes present in pith 

 and bark. Flowers usually hermaphrodite, K and C 

 5-merous. Calyx valvate. Corolla sometimes absent. 

 Stamens usually 00 inserted on disc free or in 5-10 

 bundles. Anthers with two thecae. Carpels (2-00 ) each 

 with i-oo ovules. Style i. Fruit 2-00 -locular or 

 i-locular by abortion. Endosperm mostly present. 



Only British genus (wing-like bract adnate to 

 peduncle) : Tilia. 



Fam. 2. Malvaceae. Herbs, shrubs or trees with 

 simple or lobed stipulate /^^z^^i-. Sepals 5, valvate, often 

 with epicalyx. Petals 5, adnate to base of staminal column, 

 twisted in bud. Stamens usually 00 , filaments forming 

 a tube. Anthers with one theca. Pollen grains large, 

 spiny. Carpels (5-00) each with i-oo ovules. Styles as 

 many or twnce as many as caipels. Fruit a capsule or 

 schizocarp. Seeds often woolly. Endosperm scanty or 

 absent. 



Tribe Malveae. Style-arms as many as carpels. 

 Frnit a schizocarp. 



Epicalyx of 3-6 connate segments. Axis longer 

 than fruits. Lavatera. 



Epicalyx of 6-9 connate segments. Axis shorter 

 than fruits. Althaea. 



Epicalyx of 3 distinct segments. Malva. 



