Notices and Extracts from the Minutes of the Geological Society. 423^ 



Mr. Brown's collection,, presented us with something like an analogous con- 

 struction. This tree possesses a thin outer bark, marked by the cicatrices of 

 the leaves ; and within that an internal, somewhat reticulated surface, in 

 which we remarked a singular plexus of the vessels formed where the dra- 

 gon's blood was secreted, to which the cicatrix in our vegetable bears a strik- 

 ing resemblance. It was right to allude to this fact, although we can rest but 

 little upon it. 



The marking on the external surface or bark, would induce us to arrange 

 this most singular vegetable in the fossil genus Clathraria * of Mr. Ad. Bron- 

 gniart. It differs, however, from this genus, in that each rhomb is surrounded 

 more distinctly at the confluence of the obtuser angle, by an additional ele- 

 vated ridge, PI. XLVII. fig. 4. a. On this account, and from the singularity 

 of its internal arrangement, we have named this species Clathraria anomala. 

 The largest specimen of C. anomala yet found, Mr. Mantell informs us, 

 measured 14 inches in circumference and 4 feet in length. 



PI. XLVl. figs, 1. and 2. represent a fossil vegetable, sometimes found 

 considerably larger, but usually attenuated at the base, and swelling unequally 

 at different intervals, after the manner of some of the Cacti. It is sometimes 

 hatchet-shaped, very flat, and 12 inches wide, and at times is found encrusted 

 by a carbonaceous matter difficult of preservation. 



The dots on the section PI. XLVL fig. 2., and seen enlarged PI. XLVIL 

 fig. 5. b., indicate monocotyledonous structure. It is difficult to determine 

 whether the larger cavities, dispersed irregularly through the substance, are 

 the perforationsof an animal, or the vestiges of internal organization. Probably 

 they will be found to result from the latter. The eroded appearance of the 

 surface is seen enlarged PI. XLVII. fig. 5. a. 



A mass of monocotyledonous wood from Upper Egypt, figured in the great 

 work on that country published by the French Government, bears consider- 

 able resemblance to our plant. We have named it Endogenites erosa. 



The fruit figured PI. XLVL figs. 3. and 4. is drawn enlarged PI. XLVII. 

 fig. 1. to show the veins on its surface. These veins may rather be consi- 

 dered as the impressions of the integument, than of the nucleus itself. We 

 have named it Carpolithus ( ) Mantellii. 



PI. XLVL fig. 5. and PI. XLVII. fig. 3. represent a plant of the fossil 

 genus Filicites. The ramifications of the veins, as given in the enlarged draw- 

 ing, are of the highest importance; as through them alone, in conjunction 

 with the form and habit of the frond, we can hope, in the absence of fructifi- 



* This is a division of Sternberg's genus Lepidodendron : in neither is internal structure 

 taken into account. 



3i 2 



