EXPLANATION 



or 



THE 



PLATES. 



PLATE I. GREGGIA CAMPORUM, p. 9 



Fjg. 1. A flower enlarged. 



&( 



(( 



u 



ii 



;fi 



4C 



(C 



2. The pistil, with the lobed hypogynous disk, more magnified- 



3. The silique, in dehiscence, showing the seeds, &c., magnified. 



4. The same cut across. 



5. A thin transverse section of the silique, more magnified, showing the compression contrary 



6. A 



to the dissepiment. 



7. Transverse section of the same. 



8. A nortion nf thp ti^^ciiiA nf thn diR 



.gnified 



PLATE 11. WISLIZENIA REFRACTA, Engelm., p. 11. 



r 



FiG, 1. Vertical section of a flower-bud, magnified. 



u 



cc 



cc 



cc 



cc 



cc 



4C 



cc 



cc 



2. An expanded flower, magnified. 



3. Transverse section of the ovarj', magnified, showlng the four ovules in place. 



4. The pistil, magnified, with the ovary vertically divided. 



5. The fruit, with its stipe and pedicel, enlarged, 



6. Magnified vertical section of the fruit, and of the single seed which fills each ccll. 



7. The persistent fenestrate dissepiment from which the valves have fallen, with a part of the 



style and stipe, magnified. 



8. One of the valvcs from the same. 



9. A seed detached, ma£:nified. 



10. A transverse section of the same. 



PLATE III. A. TALINOPSIS FRUTESCENS, p. 15 



FlG. 1. 



CC 



(i 



C4 



C( 



(C 



(( 



(i 



5. 



natural 



2. An expanded flower. 



3. A detached petal with its fascicle of stamens, magnified. 



4. A stamen, more magnified. 



Pistil, equally magnified. 



6. Vertical section of the same, showing the placenta and ovules. 



7. An ovule detached, more magnlfied. 



8. Dehiscent pod, with the persistent calyx, enlarged. 



