224 POLYGALACEiE. 



PLATE 184. PoLYGALA PAUciFOLiA, WtUd. ; — of the natural size, in 

 flower, and with the clandestine fructification at the base. 



1. The sepals displayed, of the natural size. 



2. Inside view of the corolla, spread open, and the stamens included in 



the keel, magnified. 



3. One of the side-petals torn away, with one of the phalanges of stamens 



adherent to its edge. 



4. Lateral view of the anterior petal (keel), from which the side-petals 



and the stamens have been separated. 



5. The pistil, with the posterior gland of the disk, equally magnified. 



6. The strongly concave posterior sepal, equally magnified. 



7. A dehiscent anther, more magnified, showing its thin partition. 



8. Lateral view of an anther, equally magnified. 



9. The thickened apex of the style and stigma, seen laterally ; magnified. 



10. Magnified vertical section of the ovary and receptacle, showing the 



ovules in place, with the forming lobes of the caruncle. 



11. One of these ovules detached and more magnified. 



12. Diagram of one of the clandestine fertile flowers ; the corolla reduced 



to the keel-petal. 



13. A fructified pistil of the same, partly inclosed by its bract and the per- 



sistent calyx, magnified. 



14. Calyx of the same displayed ; magnified. 



15. Liside magnified view of its corolla, consisting of the anterior petal 



only, with the two triandrous phalanges adnate to its margins. 



16. Its fertilized pistil, detached, magnified. 



17. Dehiscent capsule, of the natural size. 



18. Magnified transverse section of the same, and of the contained seeds. 



19. A magnified seed, with its long three-horned caruncle. 



20. Transverse section of the seed, magnified, with its thick, plano-con- 



vex cotyledons in the thin albumen. (The latter, which is not 

 well represented by the engraver in this respect, is very thin or 

 almost interrupted next the edges of the albumen.) 



21. Vertical section of the seed, with its caruncle, magnified, showing the 



embryo in place. 



