Oxalidaceae, Linaceae, Polygalaceae 63 



Fam. 2. OXALIDACEAE. Perennial herbs. Leaves 

 often ternate, showing- sleep-movements. Flowers 5- 

 merous. No real disc. Stamens 10, united below. 

 Carpels isomerous. Fruit a capsule or berry, loculicidal 

 if dehiscent. Endospenn fleshy. 



Only British genus : Oxalis. 



Fam. 3. LiNACEAE. Herbs with simple, entire 

 leaves. Flowers 4-5-merous, actinomorphic. Petals often 

 convolute in bud. No real disc. Stamens 5-20, united 

 in a ring below. Gynaecinm quite syncarpous. Ovary 

 often with extra, imperfect dissepiments from dorsal 

 sutures. Fruit a capsule or drupe. 



Tnht Eidineae. Stamens in one whorl. Frnit a capsule. 

 Flowers 5-merous. Sepals entire. Linum. 



Flowers 4-merous. Sepals with 2-3 teeth. Radiola. 



Suborder 2. POLYGALINEAE. /^/^z£'^;'^ actinomorphic 

 or zygomorphic. Stamens in two whorls. Anthers 

 opening by pores. Carpels (2), median. 



Fam. 4. Polygalaceae. Herbs or shrubs. Leaves 

 usually simple, entire, exstipulate. Flowers 5-merous, 

 zygomorphic. Sepals 5, of which two are petaloid and 

 wing-like. Petals by abortion only 3. Stamens 8. 

 Carpels with one rarely with 2-4 ovules. Fruit a 

 capsule or drupe. 



Only British genus : Polygala. 



Suborder 3. Tricoccae. Flowers actinomorphic, 

 diclinous, often very reduced. Carpels usually (3). Seed 

 mostly with caruncle. 



Fam. 5. Euphorbiaceae. Herbs, shrubs or trees, 

 often with latex. Leaves usually spiral, often stipulate. 

 Inflorescence mostly compound. Stamens as many as 



