424 THE SEA SHORE 



II. DICOTYLEDONS 

 A. CALYX, OR COROLLA, OR BOTH ABSENT 



7. Euphorbiacese Herbs with entire leaves and (generally) a milky 



juice. Flowers small, unisexual, dioecious (male and female 

 flowers on separate plants), sometimes enclosed in calyx-like 

 bracts. Perianth 3- or 4-partite or absent. Stamens one or 

 more. Ovary inferior. Fruit separating into carpels elasti- 

 cally. 



8. Eleagnacese Shrub with silvery scales, alternate, entire leaves, 



and small, unisexual flowers the staminate flowers in catkins. 

 Sepals of male flowers 3 or 4. Stamens 4 to 8. Ovary superior. 

 Fruit indehiscent (not splitting). 



9. Polygonacese Herbs with sheathing stipules, alternate leaves, 



and small (generally) bisexual flowers. Stamens 5 to 8. Ovary 

 superior. Fruit indehiscent. 



10. Chenopodiacese Herbs with jointed stems and small unisexual 



or bisexual flowers. Stamens usually 5, sometimes 1 or 2, 

 opposite the sepals. Ovary superior. Fruit indehiscent. 



B. PLANTS WITH BOTH CALYX AND COROLLA 



a. COROLLA MONOPETALOXJS 

 1. Ovary Superior and Stamens generally on the Corolla 



11. Plantaginaceae Herbs with radical entire leaves, and spikes of 



small, green flowers. Calyx 4-cleft. Corolla 4-lobed, scarious. 

 Stamens 4. Ovary 2- to 4-celled. Fruit many-seeded. 



12. Plumbaginacese Herbs with radical or alternate leaves, and 



(generally) regular, blue flowers. Calyx tubular, scarious. 

 Corolla of 5 petals, united below. Stamens 5, opposite the 

 petals, attached below the ovary. Ovary 1-celled and 1- 

 seeded. 



13. Primulaceae Herbs with (generally) radical leaves and con- 



spicuous, regular flowers. Calyx 4- to 7-cleft. Corolla 4- to 

 7-cleft. Stamens 4 to 7, generally opposite the petals. Ovary 

 1-celled. Fruit a capsule with many seeds. 



14. Solanacese Herbs with alternate leaves and axillary clusters of 



regular flowers. Calyx 5-cleft. Corolla 5-cleft. Stamens 4 or 

 5. Ovary 2-celled. Fruit a berry. 



