62 rnOCEKDlXGS OF TUB 



realised. Surely as ihe \n'.y to tli« ori<;iii ol" the llouer appears 

 not to lie in this diroclion, it is time the atlack was 1 iinied else- 

 w lu*re, viz., to the Hanaliaii laiiiilies and especially to the 

 arhoresceiit ones. 



As a stiiiiidiis to research Ei)<i;ler's system may then be said to 

 have oiitlivc'd its iisetidness and to have now a stultil'ying 

 inllncnce on the study oF the llower (20). Tiie strohiliis theor)', 

 on the otlier hand, provides a perfectly intelligible working hypo- 

 thesis with which to approach this study. It baa never yet been 

 put sufficiently to the test to see how Far it will carry us, though 

 it is evident that a coiinnencement has now been made in this 

 direction (27). 



In conclusion, I take this opportunity oF expressing my thanks 

 to Dr. I). II. Scott, F.R.S., for much helpful criticism and for 

 many kindly suggestions, especially in respect to the paL'eo- 

 botanical side of this paper. 



I'.HiLrOGRAPIIY. 



(From 1907 onwards.) 



1. AiiBKit, A. (1918).— The Pliyllode Tlieory of the Monocotyletlonous Leaf, 



with Special Reference to Anatomical Evidence. Ann. Eot. xxxii. 

 pp. 46.")-50l ; iilso to a series of papers since siippoi-ting the phyllode 

 theory. 



2. .\unKU, A. (U)l'J). — Studies on Intrafiiscienlar Caiiibiinn in Monocoty- 



ledons. Ann. Bot. xxxiii. pp. 4r)y-4()5, and (1922) Ann. Bot. xxxvi. 

 pp. 2.">l-2;')(i. 



3. Arbeu. a. (1920). — Water Plants, Canibridj^e, pp. i-xvi and 1-436. 



4. AiiiJEii, the late E. A. N. (1919). — Remarks on the Organization of the 



Cones of ]\"dlia/nAoni(( giijas (L. & II.). Ann. Bot. xxxiii. pp. 17.'!- 

 179. 



5. Auiu;r. E. a. N., and J. Bakkin. (1907). — On the Origin of .-Vngio^iperins. 



Jinirii. Linn. Soiv, Bot. xxxviii. pp. 29-80. Translated into Gerunin 

 iu Oi'sterreich. Bot. Zeitschriit. Iviii. pp. 89. WVd, 184 (1908). 



6. Aui'.r.u, E. .v. N.. and J. P.vuKrN. (1908).— The Relationship of the Angio- 



sperms to the (inetales. Ami. Bot. xxii. ])]) 4<'^9-r)15. 



7. B.MLKY, 1. W., and E W. Sinnott. (1914). — Investigations on the Piiylo- 



geny of the Angiosperms, No. 2. Anatomical Evidence of Reduction 

 in certain Ameiitifene. Bot. Gaz., iviii. pp. ^(i-oS. 



8. B.viLEv, I. W., and W. P. Tiiomi'sov. (1918). — Additional Notes upon the 



.\ngiosperms, Til race nt run, Trocliodendro)!, and JJrimi/.f, in which 

 Vessels are absent from the \A'ood. Ann. But. xxxii. pp. .^03-.')12. 



9. Bkciitf.i., a. R. (1921). — The Floral Anatomy of the L'rticales. Amcr. 



Journ. Bot. viii. pp. 386-410. 



10. Benson, M., and If]. J. Wklsfori). (1909).— The Morphology of the Ovule 



and Female Flower of Juglans regia and of a few allied genera. 

 • Ann. Bot xxiii. jip. 623-033. 



11. Beruidoe, E. M. (1911). — Oa some points of resemblance between 



Qnetalean and Bennettitean seeds. New l^hytologist, x. pp. 140-144. 



12. Bi;RRii)(iE, E. M. (1914). — The Structure of the l^'lower of Fagaceie, and 



ils bearing on the affinities of the Group. Ann. Bot. xxviii. pp. r)09- 

 .'>26. 



