170 FLORA OP TEXAS. 



bud, deciduous. Stamens united into a tube. Anthers 15, 

 adiiate linear. Ovary 3-celled. Style cylindrical. Stigmas 

 3. Berry globose, 1-3-celkd, mostly 2-seeded. Seeds globose 

 reniform. Embryo minute, in fleshy albumen. Large 

 tree, leaves alternate, near the ends of the branches, obo- 

 vate, emarginate, glabrous, on short petioles. Eacemes 

 compound, shorter than the leaves, terminal. Pedicels 

 1-flowered. FloAvers small, J)urple. 



21. PUESLANE FAMILY. Order, Portclacace^. 



Succulent plants, with entire leaves and regular hypogy- 

 nous or perigynous jloicers, Sejmls 2-5. Petals 3-6, im- 

 bricated in the bud, sometimes wanting. Stamens as many 

 as the petals and opposite them, or indefinite. Styles 3-6, 

 mostly united below, stigmatic along the inside. Cajysnle 

 1-5-celled, few-many-seeded. Seeds campy lotropous, erect 

 from the base of the cell, or attached to a central placenta. 

 Embryo slender, curved around mealy albumen. 



GENEEA. 



* Sepals 2. Petals 5-6. 

 Clattonia. Petals and stamem 5. Capsule 3-valved, 3-6-seeded. 

 Taunum. Petals 5. Stamens 10-30. Capsule S-valved, many-seeded. 

 PoRTULACA. Petals 5-6. Stamens 8-20. Capsule circumscissile. 



* Sepals 5. Petals none. 

 SESUYiuii. Stamens 5-GO, inserted on the calyx. Capsule circumscissile. 



CLAYTONIA, L. Spring Beauty. 



Sepals 2, free, persistent. Petals hypogynous. Stamens 

 5, inserted on the claws of the petals. Style 3-cleft. Cap- 

 sit le 1-celled, 3-yalyed, 3-6-seeded. Smooth herbs, with a 

 simple stem bearing two opposite leaves, and terminating 

 with a loose raceme of pale rose-colored, veiny flowers. 



C. ViRGiKiCA, L. Leaves 3-6' long, linear, acutish; 



