CRYPTOGAMS 



MALE SHIELD FERN— cont c 



PLATE XXII I. 



Fig. 1. Dwdopmatixf Spore, Fl $ Z Genrmwiimuaf 'Spore, 



Fig. lArckegoJuimv iibSedwnal'Fl&vauoTb SoTlmv 



fa.' Sectional JILevatiorv 



mm: 



^sr 



Moot 



Fig. 3. FrothjodliuMrimcier surfox& 



^Arxhegordoj 



^ 



Fig. 4. Awdwridiwru 



2fother-oells 

 ofjinihtrozoids 



Fig. 5. Mother- cell wttiv 

 AnxhroxDiFL 



Central Cell 



FrothaUharv-. 



(bUFlan, 



Canal Cells 

 , ' irvilknvs 



Fig. 6.Anjtherozoid 



LIFE HISTORY DIAGRAM 



Ferrv 



Fertilised, Gtrnv cell 



Atffaerulub&s 

 Archegonia/ 



■Fndo-c/onidia. 



Tratkalhis 



Engraved. Printed and Published by W Sc AX Johnston, Edinburgh 



