from the Lanarkshire Coal-field. 479 



attached to a common stem. Each whorl contains about 

 thirty leaves. 



Localities. Bent Colliery, about 1^ mile E. of Bothvvell ; 

 Blaes between Kiltongue and Drumgray Coals, Whiterigg, 

 near Airdrie. 



Calamocladus grandis, Sternberg, sp. 



Calamocladus grandis, Schimper, Tiaite d. pale'ont. vege"t. vol. i. p. 325. 

 Bechera grandis, Sternberg, Vers. i. fasc. iv. p. xxx, pi. xlix. fig. 1. 



Remarks. Most probably this species is not distinct from 

 Calamocladus equisetiformis, Sch.1. sp. 

 Locality. Bent Colliery, about 1^ mile E. of Bothwell. 



Annularia, Sternberg. 



Annularia patens, Sauveur, sp. 



Aster ophyllites patens, Sauveur, VtSget. foss. du terr. houil. de la Bel- 

 gique, pi. lxix. fig. 4. 



Description. Stem faintly striated longitudinally ; inter- 

 nodes varying in length (according to the age of the specimen). 

 Leaves whorled, numerous (8-16 in a whorl), long, linear, 

 narrow, single-nerved, and terminating in a sharp point ; basal 

 portion of leaf not contracted. The leaves vary in length 

 from fV of an inch on the smaller branches to nearly an inch 

 on the larger, and in width from ■£$ to -^ of an inch. From 

 the leaf- whorls are given off lateral branchlets. 



Remarks. Of this species the only figure with which I am 

 acquainted is that given by Sauveur, which only shows a 

 portion of a whorl of leaves. Unfortunately no description 

 accompanies his sketch. 



The leaves are long in proportion to their breadth and of 

 equal width throughout, and this, in connexion with their 

 not being contracted at their base, easily distinguishes Annu- 

 laria patens from Annularia radiata. The leaves are generally 

 rather longer than one and a half times the length of the 

 internodes. On the smaller branches of course the leaves 

 and internodes are smaller than on the larger branches, but 

 they usually hold the same proportional relationship to each 

 other in size. One small example shows a lateral branch 

 springing from the axil of one of the leaves ; but none of 

 the other nodes of this example gives rise to branches. From 

 this its mode of ramification appears to be irregular. 



Although this species has not been previously recorded 

 from Britain, I have seen it, in addition to the Airdne 

 locality, from the Coal-measures, Furnace Bank Pit. Old 



33* 



