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Champia bifida differs from Oiampia compressa Harv., Ch. 



Nova-Zelandice (Hook, et Harv.) J. Ag. and the allied plants 



chiefly by having bifid apices, subdichotomous branches and 

 broader size of segments. 



Plate XXIV. Fig. i : tetrasporic frond of Champia bifida, 

 extricated, \. — Fig. 2 ： semi-diagramatic tangential section of frond, 

 magnified. ― Fig. 3 ： vertical longitudinal section of frond, 5 1 2 . 一 

 Fig. 4 ： filament with a bulb-cell, b, passing through diaphragm, 

 a, - 9 j 1 . — Fig. 5 ： portion of segment bearing tetrasporangia, \. 一 

 Fig. 6 ： portion of cross-section of frond bearing tetrasporangia, 

 - Y. ― Fig. 7 : two q stocarp-bearing branches coalesced, \. ― Fig. 8: 

 longitudinal section of cystocarps, ザ. 一 Fig. 9 ： upper half of 

 pericarp, showinp- network, ザ. 一 Fig. 10 ： portion of neucleus, 

 showing the mode of ramification of a gonimolobe, which arises 

 from pedicel-cell, and basal portion of pericarp, —— t ig. II ： 

 young carpospores, walls omitted, ―^. 



