754 NOTES 



368. A. Braun : ( T l>. d. schiefen Verlauf d. Holzfaser u. d. dadurch bedingte 

 Drehimg d. Stamrne, Berlin, 1854. 



369. Von Mohl : B.Z. 1869. R. Hartig : Lehrb. d. Anat. u. Phys. d. Pflanzen, 

 1891. Schwarz : I.e. [365]. 



370. Schwendener : I.e. [350]. Id. Sitzb. Berlin, 1884. Metzger : Miinchner 

 forstl. Hefte, No. 3, 1893. Id. ibid. No. 5, 1894. Schwarz : I.e. [365]. 



371. Nordlinger : Die technischen Eigenschaften d. Holzer, Stuttgart, 1860. 

 Wiesner : I.e. [351]. Molisch : Sitzb. Wien, 80, 1879. Id. ibid. 84, 1881. Gauners- 

 dorfer : ibid. 85, 1882. Temme : Landw. Jahrb. 14, 1885. Prael : P.J. 19, 1888. 

 Wieler : ibid. 



372. De Bary : Comp. Anat. pp. 618 sqq. (and the literature there cited). Kny : 

 Ber. 4, 1886. Roseler : P.J. 20, 1889. Strasburger : I.e. [355], pp. 393 sqq. .Kny's 

 statement to the effect that the " tracheides " in the secondary bundles of the 

 Dracaeneae and Aloineae are really vessels, is refuted by Roseler ; Strasburger 

 confirms Roseler' s account. Schoute : I.e. [349]. 



373. Floating-ivood. Ernst : B.Z. 1872, De Bary : Comp. Anat, p. 499. Stras- 

 burger : I.e. [355], pp. 178 sqq. Goebel : Pflanzenbiologische Schilderungen, 2, 

 1891. According to Ernst, the large thin- walled prismatic cells in the dilated portion 

 of the stem of Aeschynomene are " always full of water so long as the stem is sub- 

 merged, and only contain air when the stem is above water." If this account is 

 correct, Goebel is mistaken in regarding floating- wood as ecologically equivalent to 

 aerenchyma. 



374. Gaudichaud : Mem. pres. a l'Acad. d. Sci. 8, 1841. A. de Jussieu : Arch. 

 d. Mus. 3, 1843. Criiger : B.Z. 1850-1. Bureau : Monographie des Bignoniacees, 

 Paris, 1864. F. Miiller : B.Z. 1866. Netto : C.R, 57, 1863. Id. Ann. Sci. Nat,, 

 ser. IV., 20 and ser. V., 6. Nageli : Dickenwachstum d. Stengels b. d. Sapindaceen, 

 Munich, 1864. Radlkofer : Monogr. d. Gattung Serjania, Munich, 1875. Wester- 

 maier u. Ambronn : Flora, 1881. Von Hohnel : P.J. 1882. Warburg : B.Z. 1883. 

 Schenck : Beitr. z. Biol. u. Anat. d. Lianen, 2 (Anatomie), Jena, 1893 (contains an 

 exhaustive list of literature). Id. P.J. 27, 1895. Gilg : Ber. 1893. Warburg : ibid. 

 Schellenberg : Festschr. f. Schwendener, 1899. 



375. In the valuable treatise cited above, Schenck repeatedly attacks the theories 

 of Westermaier and Ambronn, as well as the views put forward by the author, in 

 the first edition of the present work, concerning the advantages of the anomalous 

 structure of various hane-stems. The author, however, adheres in the main to his 

 former statements, especially with regard to Westermaier's and Ambronn's explana- 

 tion of the unusual width of the vessels and sieve-tubes of climbers (cf. the third 

 [German] edition, p. 606, Note 36). Certain of Schenck's criticisms, which are 

 accepted by the author, are mentioned in the text. 



376. Trecul : C.R. 63, 1866. Schmitz : Sitzb. Halle, 1874. Id. B.Z. 1875. 

 De Bary : Comp. Anat, p. 516 sqq., pp. 598 sqq., 606 sqq. Weiss : Flora, 1880. 



377. The split ting-up of rhizomes and roots observed by Koch in Crassulaceae, 

 by Jost in Gentiana cruciata, Corydalis nobilis, C. ochroleuca, Aconitum Lycoctonum, 

 Salvia pratensis and Sedum Aizoon, and by Arthur Meyer in the genus Aconitum, is 

 quite a different phenomenon from the subdivision of the woody cylinder in liane- 

 stems. According to Jost, it depends upon the disorganisation of those tracts of 

 tissue which are most directly connected with the (annual) aerial organs (leaves and 



