PLATES 



Plate 1. Morphology of Leaves. Figures redrawn with modifications from Grey, 

 Henfrey, Deam and Hegi; 69 original. 



Plate 2. Morphology of the Flower. Figures redrawn with modifications from 

 Grey, Thom6, Hooker, Jessen, Berg and Schmidt, and Hooker. 



Plate 3. Morphology of the Fruit and Embryo. Histological Structure of 

 Lenticel and Fibrovascular Bundle. Drawings adopted in part 

 from Grey; Thom6; Mannagetta; Devaux, Hegi and Hooker. 36 and 38 

 original. 



Plate 4. Morphology of the Bird. Figures redrawn with modifications from 

 Ridgeway, Schandler, Pycraft, Nitzsch and Schmarda. 



Plate 5. Morphology of Worms. A, Nematode anatomy. The upper part of the 

 figure represents the anterior half of a female, the lower part represents 

 the same view of the posterior part of a male nematode (after Cobb); 

 B, anterior part of Limnomermis (after Steiner) ; C, valvular apparatus of 

 Acroheles (after Steiner); D, vagina and vulva of Hydromeris (after 

 Steiner) ; E, posterior part of male Cephalobus (after Steiner) ; F, soleno- 

 cyte of Glycera (after Goodrich) ; G, transverse section of Nereis (after 

 Benham); H, anterior end of an adult polychaete annelid worm (after 

 Snodgrass) ; /, diagram of a tapeworm with scolex purposely drawn too 

 large (after Cobb). 



Plate 6. Morphology of Arthropods. A, chewing mouthparts of cockroach 

 (from Hertwig) ; B, anterior and lateral view of the head of a pterygote 

 insect (after Snodgrass); C, head of honeybee (from Glossary of Ento- 

 mology); D, cross section of mesothorax of insect (after Kolbe); E, 

 middle leg of insect; F, lower side of a beetle (from Glossary of Ento- 

 mology) ; G, digestive tract of a beetle (from Lang) ; H, male sex organs 

 of beetle (after Escherich) ; I, female organs of insect, diagrammatic ; K, 

 head of amphipod crustacean (after Snodgrass) ; L, fresh water crayfish 

 (from British Museum Guide); M, schizopod of crustacean. 



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