INDEX TO PLATES. ' ^i 



DiPHYPHYLLUM — Continued. Plates. 



conjimctum 116 



gigas 115 



panicum 115 



strictum 114 



verneuilanum 89, 113 



Eridophyllum 



arundinaceum 112 



clividiium 109 



liuroniciim 109, 111 



eruciforine 107 



rugosum 109, 110 



sentum 51, 108 



simcoense 112 



Hadrophyllum 



d'Orbignyi 103 



Omphyma 



verrucosa , 104, 105 



Phillipsastrea 



gigas 118 



ingens , • 118, 119 



Ptychophyllum 



coniferum 106 



diaphragma 106 



invaginatum 105 



ipomoea 104, 105 



stokesi 105 



tropoeum 106 



typicum 106 



