

18Q MR< J0HN MIERS ON THE GENUS CRESCENTIA. 



terminate 



nourishin 



laminar membranes which radiate from them in all directions, and which, becoming fleshy 



mass 



entire capacity of the cell of the fruit. Of 



Kg; 12. A seed, also of the natural size. 



Fig. 13. The same, magnified and seen in face, the hilum being the minute point in its base. 



Fig. 14. The same, seen on its edge. 



Eg, 1 5. The same, with half of the outer integument removed, showing the position of the chalaza, in the 



summit of the inner integument, with respect to the hilum. 



Fig. 16. 



from 



summit, while the base is prolonged into a narrow thread terminating in the hilum. 



remov 



Fig. 17. The inner integument has beer 



Fig. 18. The same, seen sidewise. 



Fig. 19. The same, with one of the cotyledons removed, showing the size and relative position of the 



radicle. 



Fig. 20. The cotyledon which has been removed, 



ignified 



Plate VIII. 



Fig. 1. A portion of a branch of Crescentia fasciculata. 



Fig. 2. A flower of the same, expanded. 



Fig. 3. A portion of a branch of Crescentia linearifolia. 



Fig. 4. An entire fruit of Crescentia linearifolia. 



Fig. 5. A vertical section of the same, with half of the pericarp and the pulpy mass removed, showing 



four parietal nervures imbedded in the laminar membranes which are agglutinated to the 



inner surface of the pericarp. All of the natural size. 



Plate IX. 



Fig. 1. A portion of a branch of Crescentia [Enallagma) coriacea, with two ripe fruits attached. 



Fig. 2. The calyx, from which the flower has fallen off. 



Fig. 3. The corolla removed, as seen in a dried specimen, in which is seen the short upward duplicature of 



the tube on the ventral side, forming a ringent swelling within the mouth : the upper lip is 

 entire, with a crispate margin; the lower lip has the margin cut into acute laciniated teeth. 



Fig. 4. The ovary, some time after the fall of the flower. 



Fig. 5. A transverse section of one of the fruits, showing its thin brittle pericarp and contained seeds. 



Fig. 6. A seed from the dried specimen, covered by a pith-like substance, or exsiccated portion of the 



pulp. 



Fig. 7. The same, seen edgewise. 



Fig. 8. A seed with the covering removed, deeply grooved on the two opposite faces, showing the mem- 



m 



Fig. 9. The embiyo, from which the two integuments 



auricular 



cealed. 



thickness 



cotyledon seen fi 

 radicle. All of 



of the concealed 



