146 PLANTS WRIGHTIAN^. 



PLATE IX. B. LAPHAMIA HALIMIFOLIA, p. 100. 



Fig. 1. Vertical section of a head, enlarged. 



" 2. A ray-flower, magnified. 



" 3. A disk-flower, magnified. 



" 4. Corolla of the latter laid open. 



" 5. A detached stamen, more magnified. 



" 6. Style of a disk-flower, highly magnified. 



" 7. A ripe achenium, magnified. 



" 8. Transverse section of the same. 



PLATE X. ZINNIA (HETEROGYNE) ANOMALA, p. 106. 



Fig. 1. A plant with most of the ray-flowers destitute of ligules. 



" 2. A branch of the variety with short ligules to all the ray-flowers. 



" 3. Vertical section of a head of the plant represented in Fig. 1, magnified. 



" 4. One of the ray-flowers wholly destitute of corolla, more magnified. 



" 5. Another ray-flower from the same head, with a short ligule. 



" 6. Transverse section of a ray-achenium. 



" 7. Style of a ray-flower, more magnified. 



" 8. A disk-flower, magnified, with 



" 9. The accompanying palea of the receptacle. 



" 10. A disk-corolla laid open, and more magnified. 



"11. A detached stamen, more magnified. 



" 12. Style of a disk-flower, magnified. 



" 13. An achenium of the disk, with its subtending palea, transversely divided, magnified. 



" 14. Summit of a disk-achenium which exhibits a 4-awned pappus. 



EXPLICIT. KAL. MART. MDCCCLII. 



