356 Transactions. 



regard to two or more specimens of different sizes found lying near one 

 another, careful examination has rudely dissipated the view, for they have 

 been found to be the remains of adults of two different species. 



Euryapteryx crassa is a moa of medium height, standing about five or six 

 feet ; heavy in build, with relatively short- legs and broad pelvis. Its beak 

 is short and stout, with a rounded tip. A restoration of an allied species, 

 Pachyornis elephantopiis, may be seen in the Dunedin Museum. 



I have to thank Mr. Murdoch for so generously placing the bones at my 

 disposal. 



Art. XL VI. — A Comparative Study of the Anatomy of Six New Zealand 



Species of Lycopodium. 



By J. E. HoLLOWAY, M.Sc. 



[Bead before the Manaimtu Philosophical Society, lOth November, 1909.] 



Introduction. 



The six folloMnng species, native in New Zealand, are considered in the 

 present paper : — 



(1.) Lycopodium volubile, Forst. 



(2.) ,, scariosum, Forst. 



(3.) ,, densum, Labill. 



(4.) „ laterale, K. Br. 



(5.) „ cernuuni, Linn. 



(6.) ,, Billardieri, Spring. 



A comparative account is here given of the early stages in the develop- 

 ment of the yoving plants of all six species, and also of the development 

 of the stelar anatomy of the mature plant. An account is added of the 

 development of dimorphism in the leaf-arrangement of L. volubile and 

 L. scariosum, and some other points of interest brought out during the 

 course of the study are noticed. 



This study was begun a number of years ago in the laboratory of the 

 Auckland University College, under the guidance of Professor A. P. W. 

 Thomas. The writer desires to record his grateful appreciation of this 

 gentleman's kind interest and valued advice, as also of that of the Rev. 

 G. B. Stephenson. To Mr. William C. Davies, of Greytown, his thanks 

 are due for the excellent photomicrographs. 



PKt)THALLUS. 



It has been considered to be beyond the scope of this present paper to 

 give any detailed account of the prothalli found whilst the study was in 

 progress. It is hoped that some such account will be given elsewhere. It 

 will suffice here merely to indicate their more obvious external characteristics 

 in order to show the nature of the dependence of the young plant upon its 

 prothallus. 



The prothallus of L. cernuum is well known. Young plants with pro- 

 thalU attached were found in abundance in two localities, growing on damp 



