and foliage of calamodendron commune. 223 



Addendum. 



Since the above communication was read^ and when it 

 was in the press^ I have had the pleasure of perusing the 

 first volume of Professor Schimper's magnificent work, 

 ^ Traite de Paleontologie vegetale ou la flore du monde pri- 

 mitif dans ses rapports avec les formations geologiques et 

 la flore du monde actuel.' The learned author has done me 

 the honour to figure the fructification of my Calamoden- 

 dron commune as Calamostachys Binneyana, and alludes to 

 the Aphyllostachys jugleriana of Professor Goeppert as 

 resembling my cone in form and size. Dr. Ludwig's spe- 

 cimen he describes as Calamostachys typica, and figures a 

 beautiful specimen showing that the fructification was a 

 terminal panicle. 



My Ardwick specimens he considers to belong to An- 

 nularia longifolia rather than to Asterophyllites longifolius. 

 This probably is more correct, as these two genera of 

 fossil plants have not been so clearly distinguished in 

 England as they have been on the Continent. My speci- 

 mens had been examined and pronounced Asterophyllites 

 by two of our most eminent fossil-botanists. The Ardwick 

 and Holywell specimens exhibited no internal structure, 

 and were figured and described for the purpose of showing 

 the leaves, branches, and fruit-stalks of plants allied to 

 C alamo dendr on commune, of which my specimens merely 

 gave the external form and internal structure. 



EXPLANATION OF PLATE VI. 



[C alamo dendr on commune.) 



Fig. 1 . Specimen of a branchlet of Calamodendron commune ? in a bed of 

 coal-shale found above the Lower Brooksbottom seam of coal at 

 Ewood Bridge, Lancashire, from the cabinet of Mr. John Aitken, 

 of Bacup, showing the foliage of the plant. Natural size. 



