Dixon and Ball — Channels of Transport in Seedlings. 195 



DESCRIPTION OP FIGURES. 



Plate VII. 

 Fig. 



1. Germination of Lodoicea sechellarum, photographed at Kew, January 19th, 



1923. The curved petiole of the cotyledon is bent down in front' of the 

 bilobed fruit. The split in the base of the petiole shows the plumule 

 about to emerge. 



2. Lodoicea sechellarum. Transverse section of sclerenchymatous strand in 



petiole of cotyledon. X 500. e.s., sac containing siliceous nodule ; t.w., 

 thin-walled elements. 



3. Lodoicea sechellarum. Transverse section of haustorium. X 50. v.b., 



vascular bundle ; f .p., fundamental parenchyma ; g.c, giant-cell. 



4. Lodoicea sechellarum-. Transverse section of haustorium.. X 150. Showing 



giant-cell and its attachments ; a, with parenchyma-cells. 



5. Lodoicea sechellarum. Transverse section of vascular bundle in haustorium 



at the level where some tubules are emerging; i.s., intercellular space; 

 p., phloem; t., tubules; x., xylem. 



Plate VIII. 



6. Lodoicea sechellarum. Transverse section of vascular bundle close to surface 



of the haustorium. X 420. x., xylem; t., tubules; s.c, sieve-tubes and 

 companion-cells; p.p., phloem-parenchyma cell; i.s., intercellular space 

 filled with slime. 



7. Lodoicea sechellarum. Transverse section of vascular bundle in petiole of 



cotyledon. X 300. c.s., sac containing siliceous nodule ; t.s., trachea con- 

 taining slime; p., phloem; x., xylem; s.s., sclerenchjinatous sheath. 



Plate IX. 



8. Lodoicea sechellarum. Transverse section of haustorium, showing tubules 



(t.) passing down intercellular space (i.s.). X 250. 



9. Lodoicea sechellarum. Longitudinal tangential section of bundle sheath 



in haustorium, showing sheaf of tubules (t.) cut transversely. X 250. 



10. Lodoicea sechellarum. Transverse section of haustorium. X 48. e.n., 



remains of endosperm; ep., epidermis; v.b., vascular bundle; t., sheaf of 

 tubules. 



11. Lodoicea sechellarum. Inner part of the same sheaf of tubules (t.) re- 



presented in fig. 10, showing its bifurcation, i.s., intercellular space. 

 X 250. 



