TJie Fossil Plants of the Coal Measures. 105 



Outer ZoiNE. 

 Transverse. 



L.— p. 289, Fig. 9e, C.N. 379. 



Prosenchymatous Zone. 

 Transverse. 



B. — p. 206, Fig. i3.i. 

 L.— Fig. 9f, C.N. 379. 



Leaf-Traces. 

 Transverse. 



L.— p. 289, Fig. loC, C.N. 384. Sec also C.N. 448k and 1. 



Longitiidinal. 



L. — p. 290, Fig. loc". See also C.N. 1643 and especially 1646. 

 BB.— p. 18, Fig. 25d, C.N. 396. 



Leaves. 

 Transverse . 



L.— p. 289, Fig. 9g, C.N. 379. 



Tatigential. 



See Sections 448 K and L, not yet described, but some of them shew 

 Parichnos, Leaf-trace, and Adenoid Organ, described in Memoir 

 XIX. (BB) in L. Harcourtii and Lomatophoios. 



Halonial Branches. Some not yet figured or fully described. 

 B.— p. 223-4. 



Transverse. 



C.N. 395. _ In this there is a hiatus at each extremity of the oval 

 section of the primary vascular cylinder. From each hiatus a 

 large solid vascular Ixnidle has been given off to a Halonial 

 tubercle ; one tubercle is intersected at the periphery of the 

 section. 



Conversion of the segment of the primary vascular cylinder into a 

 cylindrical bundle. IJ. — ji. 196. — Fig. 1-8. C.N. 1654-1656- 

 1658-1659-1661. 



Longitudinal. 



B.— p. 224. C.N. 396. For figure and further description of this 

 section see B.B. p. 18, Fig. 25I, C.N. 396. 



Additional specimens in the cabinet further illustrating Halonial branch 

 of L. fuliginosum are C.N. 397 to 401. 



Type of Lepidodendron WunscJiiamtvi. Will. — The Laggan 

 Bay Plant, Arran. 



The most interesting of the Lepidodendrons, since we 



are familiar with its organisation from its youngest twigs 



to its oldest arborescent stems. Youngest twigs long and 



pensile, rarely found branched. Diameter of its axis in- 



