— 35 — 



[13| Id. On Iheseedling structure ofGymnosperms. II. 



Ann. of. Bot , t. XXIII, 1909, p. 189). 

 [14] Id. On the seedling structure of certain Centros- 



permae. {Ann. of Bot., t. XXVI, 1912, 

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 [15] Id. A considération of the facts relating to the 

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 [16] HoLDEN (H. S.), Observations on the anatomy of teratolo- 

 gical seedlings. III. On the anatomy 

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 Roylei, Walp. {Ann. of Bot., t. XXXIV, 

 1920, p. 321). 



[17] HoLDEN (H. S ) et Bexon (Dorothy), Observations on the 

 anatomy of teratological seedlings. I. 

 On the anatomy of some polycotylous 

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 of. Bot, t. XXXIl, 1918, p, 513). 



jl8] HoLDEN (II. S.) et Daniels (Margaret E.), Observations on 

 the anatomy of teratological seedlings. 

 IV. Further studies on the anatomy of 

 Impatiens Roylei, Walp. {Ann. of Bot,, 

 t. XXXV, 1921, p. 461). 



[19] Sargant (Ethel), A theory of the origin of the Monocotyle- 

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[20] — The reconstruction of a race of primitive 



Angiosperms. {Ann. of Bot., t. XXII, 

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[21] Thomas (E. N.), A theory of the double leaf-trace founded 

 on seedling structure. {The New 

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[22] Tison (A.), Sur la persistance de la nervation dichotomique 

 chez les Conifères. {Bull. Soc. Linn. Norm., 

 6« sér., t. 4, 1912, p. 30). 



