Index . 
Figures. 3. 
2. 
2. 
3 * 
4 - 
2. 
2. 
3 - 
4 - 
1-18. 
2. 
3 a , 3 by 
4 - 
Ia,H. 
11. 
2, 3 - 
4 j 5 - 
6 . 
7 - 
8 . 
9 - 
10, 11. 
12. 
13 , H- 
15 . 
16. 
17, 18. 
19. 
20. 
21, 22. 
23. 
24. 
2. 
3 - 
4 - 
5 , 6 . 
7 - 
8 . 
9 * 
10. 
Longitudinal sections of Stigmaria ficoides and Sphenophyllum 
plurifoliatum (Bancroft) . 
Pandanus affinis, Kurz; Pandanus Artocarpus, Griff. ; Pandanus 
coronatus, Martelli (Campbell) . 
Pandanus coronatus, Martelli (Campbell) 
Woods of North-east Kent (Wilson) 
Sketch drawn in New York from Newberry’s oiiginal 
(Ophioglossum granulatum) (Stopes) . 
Pollen grains from the ‘ granules ’ of the original specimen 
Sciadopitys verticillata (Carter) . . 
Cupressus Lawsoniana (Carter) . 
Thuja orientalis (Carter) 
,, ,, var. aurea (Carter) 
Allomyces arbuscula (E. J. Butler) 
Trichomanes javanicum (Chambers) 
Trichomanes javanicum (Chambers) 
Trichomanes javanicum (Chambers) 
Trichomanes javanicum (Chambers) 
Botryopteris antiqua (Benson) 
Botryopteris antiqua and Botryopteris ramosa (Benson) 
Effect of chloroform on respiration (Irving) 
specimen 
(Stopes) 
33 33 3> 33 
Effect of chloroform on assimilation (Irving) 
33 33 33 » 
33 33 33 33 
33 33 33 33 • • • • • 
33 33 33 33 * • 
Origin of one of the concentric bract bundles in Gnetum (Thouay) . 
Course of bundles in female inflorescence of Gnetum scandens 
(Thoday). 
Course of bundles in female inflorescence of Gnetum africanum 
(Thoday). 
Series of transverse sections through a node and internode of an 
inflorescence of Gnetum africanum ('Thoday) . 
Tangential sections of the female inflorescence axis of Gnetum 
africanum (Thoday).. 
Series of transverse sections through the stalk of an ovule of Gnetum 
africanum (Thoday) 
Oldest ovule of Gnetum africanum (Thoday). 
Diagram of median longitudinal section through seed of Gnetum 
africanum (Thoday) . . . . . 
Transverse section through upper half of ovule (Thoday) , 
vii 
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