SYNOPSIS OF THE FAMILIES 15 



Asclepiadaceae. Calyx inferior ; lobes 5, imbricate. Corolla tube often 

 with a ring of scales in throat ; lobes 5, valvate or contorted. Stamens 5, on 

 base of corolla, fil. usually connate in a fleshy tube ; anthers adnate by a broad 

 connective to stigma, 2-celled. Carpels 2, distinct, inclosed in stamen-tube, 

 many ovuled ; styles 2, stigma i, adnate to anther. Follicles 2. Seeds many, 

 crowned with a long tuft of hairs. Herbs or shrubs, usually twining. Leaves 

 opposite, exstipulate, entire. 



(ientianaceze. Corolla regular, 4-8 lobed, twisted in bud. Stamens 4-8, 

 anthers versatile. Ovary i celled ; ovules many, parietal. Fruit usually cap- 

 sular. Herbs with entire, opposite leaves and often showy flowers. 



Convolvulaceae. Sepals 5. Corolla usually regular, often showy, 5 lobed, 

 plaited and twisted in bud. Stamens 5. Ovary 2 celled, cells 2 ovuled. Stigmas 

 2 fid. or styles 2. Herbs with alternate, simple leaves, (o in Cuscuta.) 



Boraginacese. Calyx 5 lobed, valvate in bud. Corolla regular, 5 lobed, 

 imbricate in bud. Stamens 5 alternate with corolla lobes. Ovary of two 2 lobed, 

 2 celled, 2 ovuled carpels. Fruit of 4 nutlets. Hispid or scabrid herbs with 

 alternate, entire, exstipulate leaves. 



Solanacese. Calyx 5 fid. Corolla 5 lobed, imbricate, plaited or valvate in 

 bud. Stamens 5, often cohering. Ovary 2 celled, ovules many, axile. Fruit a 

 capsule or berry. Herbs with alternate leaves or in pairs, exstipulate. 



Verbascacese. Calyx 5 fid. Corolla 5 lobed, slightly irregular, rotate. 

 Inflorescence centripetal. Stamens 5, declinate unequal. Erect showy herbs 

 with alternate leaves and flowers in simple or compound racemes. Often placed 

 with Scrophulariaceas and formerly with Solanaceae. 



OrobanchaceEe. Sepals 4 or 5. Corolla irregular, gaping. Stamens 4, 

 didynamous. Ovary i celled. Parasitic herbs with alternate scales instead of 

 leaves. Flowers rather large, often brownish. 



Scrophulariaceae. Calyx 4-5-merous. Corolla irregular, often 2 lipped, 

 4-5 lobed. Stamens 4, didynamous, rarely 2 or 5. Ovary 2 celled, ovules many, 

 axile. Herbs with various leaves. 



Lentibulariacea?. Calyx 2-5-partite. Corolla irregular, 2 lipped. Stamens 

 2. Capsule 2 valved, many seeded. Water or marsh plants. 



Acanthacese. Calyx 4-5-partite. Corolla 2 lipped ; lobes imbricate or con- 

 torted. Stamens 4 or 2 ; anthers 2 or i celled. Ovary 2 celled ; ovules i or more, 

 superposed. Style usually bifid. Capsules loculicidal. Seeds usually com- 

 pres&ed and often hairs. Herbs or shrubs with opposite simple leaves. Flowers 

 often with conspicuous bracts. 



Verbenacese. Calyx cleft or toothed. Corolla irregular, tubular, often 2 

 lipped. Stamens 4. Ovary not lobed, 2-4 celled. Fruit a drupe, berry, or of 1-4 

 nutlets. Flowers usually small. 



Labiatae. Calyx 5 cleft or 2 lipped. Corolla usually 2 lipped. Stamens 

 2 or 4, didynamous. Ovary of two 2 lobed, 2 celled, 2 ovuled carpels. Fruit of 

 1-4 i seeded nutlets. Flowers in opposite cymes forming false whorls. Herbs 

 or shrubs with opposite leaves, often square stems. 



The next 3 Families are somewhat anomalous and difficult to place. 

 Plumbaginaceae. Corolla regular.' Stamens 4-5. Styles or style arms 5. 

 Utricle i seeded. Flowers small. Chiefly maritime, scape-bearing herbs. 



Plantaginaceee. Sepals 4. Corolla scarious, 4 lobed, imbricate in bud. 

 Stamens 4; anthers pendulous. Ovary 2-4 celled, style and stigma filiform. Capsule 

 1-4 celled. Herbs with alternate or radicle leaves and inconspicuous flowers. 



Globular iaceae. Calyx 5 cleft, imbricate in bud. Corolla 5 cleft. Stamens 

 4. Ovary of i cell and i pendulous seed. Small shrubby or herbaceous plants 

 with blue flowers in compact heads. 



