160 ANACAllDIACEyE. 



PLATE 159. Rhus (Sumac) glabra, Linn.; — a small panicle and leaf, 

 somewhat reduced in size. 



1. A sterile flower, enlarged. 



2. One of the stamens, more magnified, inside view. 



3. The same, seen from the outside. 



4. Vertical section of a sterile flower, enlarged, showing the disk, the 



abortive pistil, &c. 



5. A fertile flower, enlarged (the sepals proportionally longer), 



6. Vertical section of the same, showing the disk, the somewhat imper- 



fect stamens, and the ovule, &c. 



7. The ovule detached, with the long ascending funiculus from the apex 



of which it hangs, more magnified. 



8. The fertilized pistil, more enlarged, surrounded by the disk, the calyx 



and corolla removed. 



9. A drupe, with the calyx, enlarged. 



10. Transverse section of the same and of the embryo, more enlarged. 



11. Vertical section of the same, and of the seed and embryo. 

 PLATE IGO. Rhus (Lobadium) aromatica. Ait.; — a flowering branch 



of the sterile plant, cultivated in the Botanic Garden, Cambridge ; 

 of the natural size. 



1. Diagram of a flower : the line underneath indicating the position of 



the bract ; the circle above, that of the axis of the inflorescence. 



2. A magnified sterile flower, with its bract and a pair of bractlets, seen 



from the inner side. 



3. Vertical section of the sterile flower, magnified. 



4. An outside view of a stamen, more magnified. 



5. An inside view of the same. 



6. Pistil of a fertile flower, with the abortive stamens and deeply-lobed 



disk, magnified. 



7. Vertical section of a fertile flower, magnified, showing the disk, 



the ovule, &c. 



8. The ovule, with its funiculus, more magnified. 



9. Drupes, of the natural size. 



10. A drupe, with the persistent calyx and corolla, enlarged. 



11. Vertical section of the same, and of the seed and embryo, more mag- 



nified. 



12. A seed detached entire, with a part of its funiculus, magnified. 



13. The embryo detached, with the cotyledons separated, more magnified. 



