West. — A Contribution to the Study of the Marattiaceae . 41 1 
cells found at the apex of the Marattiacean roots is clearly related to the 
bulk, and not necessarily to the age of these roots. 
4. The six genera which comprise the Marattiaceae show remarkable 
uniformity in their morphological, anatomical, and histological characters, 
and constitute a very homogeneous and natural family, which probably 
occupies an isolated position amongst modern Vascular Cryptogams. 
In conclusion, the author wishes to express his sincere thanks to 
Professor J. B. Farmer, F.R.S., not only for suggesting that this work 
should be undertaken, but also for his constant help and valuable advice 
throughout the course of this investigation ; to Dr. S. E. Chandler, F.L.S., 
who supplied him with much valuable material of Danaea ; and to 
Mr. C. H. Wright, A.L.S., for help in the identification of material. 
Bibliography. 
1. Bary, A. de : Vergleichende Anatomie der Vegetationsorgane. Leipzig, 1877. 
2. Bertrand, C. E., et Cornaille, F. : Ltudes sur quelques caracteristiques de la structure des 
Filicinees actuelles. Trav. et Mem. de l’Universite de Lille, tom. x, Mem. 29, 1902. 
3 . Bitter, G. : ‘ Marattiaceae,’ in Engler and Prantl, Die natiirlichen Pflanzenfamilien, I. Th., 
4. Abt., 1900. 
4 . Bower, F. O. : On the Comparative Morphology of the Leaf in the Vascular Cryptogams and 
Gymnosperms. Phil. Trans. Roy. Soc. (Lond.), vol. clxxv, 2, 1885. 
5 . : Apex of the Root in Osynunda and Todea . Quart. Journ. Micr. Sci., New Ser., 
vol. xxv, 1885. 
6. : On the Development and Morphology of Phylloglossum Drummondii. Phil. 
Trans. Roy. Soc. (Lond.), vol. clxxvi, 2, 1886. 
7 . - — “ — : The Comparative Examination of the Meristems of Ferns, as a Phylogenetic 
Study. Ann. of Bot., vol. iii, 1889. 
8. “ — : Studies in the Morphology of Spore-producing Members. III. Marattiaceae. 
Phil. Trans. Roy. Soc. (Lond.), Ser. B, vol. clxxxix, 1897. 
9 . : Origin of a Land Flora. London, 1908. 
10 . Brebner, G. : On the Prothallus and Embryo of Danaea simplicifolia , Rudge. Ann. of Bot., 
vol. x, 1896. 
11 . : On the Anatomy of Danaea and other Marattiaceae. Ann. of Bot., vol. xv, 1901. 
12 . - : The Anatomy of Danaea and other Marattiaceae. Ann. of Bot., vol. xvi, 1902. 
13 . Brongniart, A. : Observations sur la structure interieure du Sigillaria elegans comparee a celle 
des Lepidodendron et des Stigmaria et a celle des vegetaux vivants. Archives du Museum 
(Paris), 1839. 
14 . Bruchmann, H. : Untersuchungen liber Selaginella spinulosa, A. Br. Gotha, 1897. 
15 . — : Von den Vegetationsorganen der Selaginella Lyallii. Flora, Bd. xcix, 1909. 
16 . Buchanan, J. : On the Root-stock of Marattia fraxinea , Sm. Journ. Linn. Soc. (Lond.), 
vol. xvi, 1878. 
17 . Campbell, D. H. : Observations on the Development of Marattia Douglasii , Baker. Ann. of 
Bot., vol. viii, 1894. 
18 . : The Prothallium of Kaulfussia and Gleichenia. Ann. du Jard. Bot. de 
Buitenzorg, 2 e s^r., vol. vii, 1908. 
: The Embryo and Young Sporophyte of Angiopteris and Kaulfussia . Ann. 
du Jard. Bot. de Buitenzorg, 3 e Suppl., i e Partie, 1910. 
* F f 
19 . 
