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- 1874. Farnblatt. 



- 1878. Vascular Cryptogams in Schenck's Hanclbuch. 



- 1898. Pteridophyta in Engler and PrantPs Natiirlichen Pflanzenfamilien, 1-4 A. 

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on the affinities of each genus, in Hooker's London Journ. of Botany, 1: 419-438. 



- 1846^, in Bot. Mag. Comp., 36. Not seen. 



- 1846^. Catalogue of the Ferns grown at Kew. Not seen. 



SPKENGEL, K. 1827. Caroli Linnaei Systema vegetabilium, vol. 4. Not seen. 

 STRASBURGER, E. 1897. Das Botanische Practicum, ed. v 

 STRASBURGER, NOLL, etc. 1898. Text Book of Botany, English translation. 

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 2: 1-120. 



- 1806. Synopsis Filicum. 



TANSLEY, A. G., and LULHAM, R. B. J. 1902. On a new type of Fern-stele, and its 

 probable phylogenetic relations, in Annals of Botany, 16: 157-164. March. 



THOMAE, K. 1886. Blattstiele der Fame, in Jahrb. f. wiss. Bot., 17: 129. 



TORREY, J. 1843. A Flora of the State of New York. Albany. 2: 502. 



UNDERWOOD, L. M. 1888; 1893; 1900^:. Our Native Ferns and their Allies. Ed. i, 

 1888; vi, 1900. 



- 1899. A Review of the Genera of Ferns proposed prior to 1832, in Mem. Torr. Bot. 



Club, 6: No. 4. 



- 1900*7. Article "DennsUedtia" in Bailey, Cyclopedia of American Horticulture, 1: 



472. 



1900$. Article "Dicksonia," 1. c., p. 480. 

 VAN TIEGHEM, PH., and DOULIOT, H. 1888. Recherches comparatives sur 1'origine 



des membres endogenes dans les plantes vasculaires, in Ann. Sci. Nat. Bot., 



ser. 7, 8: 127-132, 435-438- 

 VINES, S. H. 1894. Text Hook of Botany. 

 WATERS, C. E. T903. Ferns. A manual for the northeastern States, with analytical 



keys based on the stalks and on the fructification. Holt, New York. 1903. 



Cf. pp. 286-290. 

 WILLDENOW, C. L. 1809. Enumeratio plantarum horti regii botanici Berolinensis. 



Berlin. 



- 1810. Species plantarum. Ed. TV. 

 WILLIAMSON, J. 1878. Ferns of Kentucky. Louisville. 



WILSON, F. 1897. "Dicksonia pilosiuscula," in Asa Gray Bulletin, 5: 7-9. Not seen. 

 WOOD, A. 1846. Manual of Botany; editions of 1846 and 1864. 



