X 
Index. 
B. LIST OF ILLUSTRATIONS. 
a. Plates. 
I, II, III. 
IV, V. 
VI, VII. 
VIII, IX, X. 
XI. 
XII. 
XIII. 
XIV, XV. 
XVI. 
XVII, XVIII. 
XIX, XX, XXI. 
XXII. 
XXIII, XXIV. 
XXV, XXVI, XXVII. 
XXVIII, XXIX. 
XXX. 
XXXI, XXXII. 
XXXIII. 
XXXIV. 
Portrait of Richard Spruce (Frontispiece). 
Araceae (Campbell). 
Disease of Tradescantia (Howard). 
Triglochin maritimum (Hill). 
Ginkgo biloba (Seward and Gowan). 
Dictyota dichotoma (Mottier). 
Latex (Parkin). 
Saccharomyces anomalus (Barker). 
Poronia punctata (Dawson). 
Peronospora parasitica (Wager). 
Cycadean Sporangia (Lang). 
Pyronema confluens (Harper). 
Portrait of Ito Keisuke (Ito). 
Isoetes Hystrix (Scott and Hill). 
Hymenophyllaceae (Boodle). 
Angiopteris evecta (Shove). 
Double Fertilization (Thomas). 
Tsuga canadensis (Murrill). 
Transition from Stem to Root (Sargant). 
Actinostemma biglandulosa (Wallace). 
b. Woodcuts. 
1-7. Female Flower in Coniferae (Worsdell). 
8, 9. Endodermis in Ruscus (Lewis). 
10. Nuytsia floribunda (Burrage). 
11, 12. Isoetes Hystrix (Scott and Hill). 
13, 14. Algae and Flagellata (Blackman). 
ERRATUM. 
P. 459, line 15 from top, for cortex read phloem. 
