the Ovula of horanthus and yi&cum. 83 



Fig-. 3. The same figures have the same references. The excavation has now 

 increased, as is evident by the greater transparency of the tissue at e. 



Fig. 4. The figures refer as before. The viscous tissue at b is now considerably 

 developed, and of a fine green colour ; at d, the discoloured brown 

 tissue of the apex of the ovarium, with the remains of the central 

 brown line, is visible, and at e, a large excavation, occupied chiefly 

 by dislocated cellular tissue. 



Fig. 5. a,b,c,d refer as before. The tissue at d, is, however, more blended 

 with that of the calycine parietes, excepting its base, which is still 

 brown. The parietes of the ovarium c, are reduced superiorly to a 

 great thinness, owing to the development of the albumen at e. f. Is 

 the incomplete embryo with its cellular funiculus. 



Fig. 6. A more advanced embryo detached, with the base of the albumen, a. 

 Albumen, h. Cellular, lax funiculus, c. Embryo, d. Its cotyle- 

 donary and unequal division. 



Fig. 7. Ditto. More, and about half developed, a. Fibrous ovarium, h. Al- 

 bumen, c. Embryo, d. Its radicular extremity, now inclosed almost 

 entirely in the albumen, e. Sulcus along its lower portion, indicating 

 the original division into two rather unequal cotyledons. 



Fig. 8. Same embryo detached, d, e. Have the same references. The coty- 

 ledons are now adherent by their contiguous faces, although the 

 sulcus is very evident, f. The basilar portion of the cotyledons 

 where they do not become adherent. This subsequently forms one 

 of the lateral slits. 



Fig. 9. Nearly mature embryo, a. Its radicular end. b. The cotyledon ; the 

 two being now entirely consolidated except at the basilar point. 



There is generally some obliquity about the apices of the cotyle- 

 dons. The cleft c exists on both sides. 



Tab. V. 



Fig. 1. Mature fruit, separated from the integument of the calyx, and carrying 

 with it the whole of the viscid matter, a, which is at this period 

 transparent, b. Capsule inclosed within the viscid substance, c. Its 



m2 



