IT. TAKEDA.—OS THE GENUS I' ULYS. 



7! 



Calloni'-s discover}- of a rudimentary perigone (4-, p. 30, tab. 

 ix, figs. 13-14.) is remarkable, since the presence of a perianth 

 in Achlvs had been denied by all the previous workers except 



De Caxdolle who mistook old stamens for this structure. 



In 1895 Asa Gray (8, p. 67), 'apparently influenced by the 

 papers of Hooker, Bailxon, and Brewer and Watson, gives 

 ' 6 — 12 ' as to the number of stamens and repeats some other 

 mistakes in connection with the morphology of stamens. 



Tisciiler in his paper on Berberidaceae and Podophyllaceae 

 published in 1902 states (18, p. 681) that he found only six 

 stamens in the flowers which he examined. With regard t<> the 



dehiscence of the anther he 

 alludes to Cali.oni's work 

 and maintains the view 

 that the anther shows a 

 transition to a 4-valvular 

 dehiscence such as is seen 

 in Berheris quinduensis. It 

 is singular that Tischler 1 

 again regards the fruit as 

 a capsule (IS, pp. 682, 

 723). 



From the .above sum- 

 mary of all previous con- 

 tributions to the know- 

 ledge of this genus, one can 

 perceive that very little is 

 known of this genus, and 

 also that there are differ- 

 ences of opinion especially 

 with regard to the mor- 

 phology of the stamen. 

 The writer has had an 

 Text-fig. I. opportunity of studying 



Achlys triphyUa DC. x^. Achlvs japonica from fresh 



1) And also Ciitene (cf. IS, p. 713). 



