12 FLOWERING PLANTS OF THE RIVIERA 



Zygophyllaceze. Sepals 5, imbricate. Petals 5, regular. Stamens 10, 

 separate. Ovary of 5 cells, splitting in the fruit into as many carpels. Styles 

 united. Small herbs with opposite leaves. 



Rutaceae. Flowers 2 or i sexual. Sepals 4-5 imbricate. Petals 4-5, dis- 

 tinct, imbricate or valvate. Disk large or small. Stamens usually definite. 

 Carpels 4-5, free or connate; ovules 1-2 or many in each cell. Fruit various. 

 Shrubs (in Europe). Leaves simple or compound. 



Ampelidea?. Calyx entire or with 5 small teeth. Petals 4 or 5, 

 valvular, inserted with the stamens on a glandular disc. Ovary with 4 ovules, 

 becoming a large berry. Climbing shrubs with large leaves and very small, green 

 flowers. 



Aquifoliaceae. Flowers small, regular. Sepals 4-5. Petals 4-5, often 

 connate, imbricate in bud. Stamens 4-5. Ovary 3-5 celled, cells 1-2 ovuled. 

 Seeds albuminous. Shrubs with evergreen, alternate, exstipulate leaves. 



Celastracea;. Flowers regular. Calyx and petals 4-5 lobed, both im- 

 bricate in bud. Stamens 4-5, inserted on the disk. Ovary 3-5 celled. Seed 

 arillate. Trees or shrubs with small flowers and leaves various. 



Rhamnaceae. Flowers regular. Calyx 4-5 lobed, valvate in bud. Petals 

 4-5, minute. Stamens i opposite each petal, inserted on calyx tube at edge of disk. 

 Ovary 3 celled, i ovule erect in each cell. Shrubs with small, inconspicuous 

 flowers and small stipules. 



Sapindaceae. Flowers regular Calyx 4-9 lobed, petals 4-9, both imbricate 

 in bud. Stamens 8-12, inserted on disk. Ovary 2 lobed and 2 celled, cells 

 2 ovuled. Fruit a samara. Trees or shrubs with opposite leaves and small 

 green flowers. 



Fraxinaceae. Flowers regular, very small. Sepals and 'petals 4. Stamens 

 2. Fruit much compressed and prolonged into an indehiscent samara. Trees 

 with imparipinnate, exstipulate leaves. 



Coriariacea;. Flowers small, regular, 2 sexual. Sepals 5, imbricate, per- 

 sistent. Petals 5, keeled within. Stamens 10 free (usually). Disk o. Carpels 

 5 distinct, i celled, whorled, on a fleshy receptacle ; ovules i in each cell, pen- 

 dulous. Fruit of 5 distinct i-celled, i-seeded nuts. Glabrous shrubs with 4- 

 angular branches and opposite leaves. A family of doubtful affinity, and only i 

 genus. 



Simarubacece. Flowers usually regular I or 2 sexual. Sepals 5. Petals 5, 

 imbricate or valvate. Stamens 10, distinct, inserted at base of disk. Ovary 

 free, lobed or entire, 1-5 celled, cells i ovuled. Fruit of 1-5 one seeded winged 

 carpels, or a i-seeded drupe. Trees or shrubs with alternate stipulate, usually 

 pinnate leaves. 



Anacardiaceee. Flowers i or 2 sexual. Calyx 3-5 part. Petals free, 3-5. 

 Disk annular. Ovary of 5 distinct, i ovuled carpels. Drupe with a i celled 

 i seeded stone. Embryo large, endosperm o. Trees or shrubs with alternate 

 simple or compound exstipulate leaves. 



Sub-division III. Calyciflora;. Petals usually distinct, stamens perigyn- 

 ous or epigynous (i.e. inserted on the calyx or disk). Ovary often more or less 

 enclosed by the development of the floral axis, sometimes inferior. 



* Petals and Stamens mostly perigynous. 



Leguminosae. Flowers irregular, papilionaceous. Stamens 10, sub- 

 hypogynous or inserted on the calyx tube, all or 9 of them combined. Ovary of 

 i carpel. Fruit a legume. Albumen o. Herbs, shrubs or trees ; leaves usually 

 alternate compound and stipulate. 



Rosaceae. Flowers regular. Calyx 4-5 (rarely 8-9) lobed, imbricate or valvate 



