Gen. Phytolithus, Fam. Truncorum. 
27 
11. Phyt. Culmi teretis simplicis: articulls longitudinaliter striatis ; stiiis 
aequalibus confertis. 
Tab. 25. Fig. 1. Tab. 26. Fig. 2. 
Slriaied Fossil-culm. 
Sedcs : strata vetula, argillacea. 
Not uncommon with the foregoing species. 
SPECIMINA. 
b. S. complanatum. 
c. S. articuli solitarii. 
Obs, The single joints of both this and sidciculmis generally occur in ironstone ; they arc, how- 
ever, rare. The flattened specimens are commonly of shale. 
* c * caiidicalia. 
* a. a. * corticalia. 
12. Phyt. Caudicis? undatim cancellato-striati : squama parva subrhombea 
in Omni interstitio. 
Tab. 13 Fig. 3. 
Cancellated Fossil-stem. 
Sedes : strata vetula, argillacea. 
Buxton, See. 
Obs. This fossil seems nearly allied to Phyt. imhricatus •, but cannot be placed with the joerma- 
nent species, as the structure of its foliage, if any, is at present unknown. We have never yet met 
with it in any other, than in the complanated or flat state. 
* b. b. * lignalia. 
13. Phyt. Caudicis textura ligni quercei. 
Specimen. Mat. siliceum. Lytho.vylon siliceum. 
Tab. 1. 
Oak-like siliceous Woodstone, 
Sedes : utplurimum aquariae, interdum irregularia sabuli strata, raro rimte, 
Tractus nunc vetustus, nunc vetulus, nunc recens vel recentissimus. 
striaticul- 
mis. ' 
cancelli- 
caudex. 
(juernilig- 
nis. 
