Gen. Phytolithus. Fam. Plantit.®. 
23 
SPECIMINA. 
b. S. pinn'ts disjunctis. ' 
c. S. pinnulis disjunctis. 
Obs. We heretofore expressed a doubt of the identity of the original of this fossil and the 
Osmunda regalis, to which it is usually referred — An opportunity, we have lately had, of examin- 
ing some very entire and perfect specimens, has convinced us, that a real, specific difference does 
exist between them : we have, therefore, exchanged the trivial name before given to the petrifac- 
tion, for one more appropriate ; agreeable to the opinion we have now formed of the prototype. 
3. Phyt. Filicites? fronde simplici auriformi subundulata ; nervis dichotorais auriformis 
subobsoletis a basi ad marginem extentis. 
Tab. 34 . Fig. 1 , 2 . 
Ear-shaped Filicite. 
Sedes : strata vetula, argdlacea. 
Aljreion and Chesterjield. Rare. 
* e * Plantitas. 
4. Phyt. Plantites trunco subcylindrico subramoso tuberculato: tuberculis verrucosus, 
suppressis quincuncialibus, foliis confertis horizontalibus lineari-lanceo- 
latis. 
Tab. 11 . Fig. 1. Tab. 12 . Fig. 2 . Tab. 13 *. Fig. 2 *. 
Varietates. 
a. V. tuberculis mammillarlbus. 
b. V. depressis puncticularibus. 
c. V. depressis annulatis : centre prominulo acuminato. 
Verrucose Plantite. 
Sedes : strata vetula, arenaceo-argillacea. Matrix saepissime ar'enaceo-sllicea. 
Aljreton, Chesterfield, Padley, See. Common. 
SPECIMINA. 
a. S. sulco ad latus planius trunci, corpus medullare cylindricuia imbricatum 
occultantc. 
b. S. trunci sulco et medulla destituti. 
