86 STUDIES IN GEOLOGY, No. 4 



Rubiales Rubiacese 



Coussarea membranacea Engelhardt 

 Psychotria grandifolia Engelhardt 

 Gouatteria tenuinervis Engelhardt 

 Hoffmannia protogsea Engelhardt 

 Sabicea (?) elliptica Engelhardt 



Incerate sedis 



Phyllites coccolobaefolia Engelhardt cf. Coccoloba fagi- 



folia Jacq. 

 Phyllites aspidospermseoides Engelhardt cf. Aspidosper- 



ma tomentosa Mart. 

 Phyllites alsodeiaeoides Engelhardt cf. Alsodeia macro- 



carpa Aubl. 

 Phyllites triplarioides Engelhardt cf. Triplaris ameri- 



cana Aubl. 

 Phyllites sauraujasoides Engelhardt cf. Saurauja mon- 



taria Seeman 



Phyllites repandus Engelhardt 

 Phyllites acutoserratus Engelhardt 

 Phyllites ternstrcemiaeoides Engelhardt cf. Ternstroemia 



dentata Sw. 

 Phyllites banisteriaeoides Engelhardt cf. Banisteria blan- 



chetiana Juss. 



Carpolites cycaeformis Engelhardt 

 Carpolites guilielmaeoides Engelhardt 



ANALYSIS OF THE FLORA 



The supposed alga, Chondrites sub simplex Lesquereux, 

 which Engelhardt records may be at once dismissed as worth- 

 less. It is not the same as the object described by Lesquereux 

 and is not algal in nature, but merely a fragment of a stem 

 of some unknown plant. 



The ferns comprise the following 5 forms : 

 Gleicheniaceae (?) 



Gleichenia (?) buhsei (Engelhardt) Berry 

 Cyatheaceas 



Cyathoides thyrsopterioides Berry 

 Polypodiacese 



Blechnum antediluvianum Engelhardt 

 Pteris cousiniona Engelhardt 

 Adiantites borgoniana Engelhardt 



