1050 DR R. KIDSTON, MR T. C. CANTRILL, AND MR E. E. L. DIXON. 



leaf scar ; between these the intermediate part of the band bears closely placed, fine, 

 very short longitudinal lines which can only be clearly seen with the aid of a lens. 

 The lateral margins of the ribs are faintly striated longitudinally. 



Remarks. — Two specimens of Sigillaria Candollei are given on PI. IV, figs. 1 and 

 2. The example given at fig. 1 is from an older stem than that seen at fig. 2. The 

 leaf scars are ovate and can scarcely be said to possess lateral angles. Both the 

 upper and lower margins are rounded, and immediately above the leaf scar the ligule 

 pit is situated. This is placed so close to the leaf-scar margin in some cases that it 

 almost rests upon it and causes a very slight flattening of its surface. 



The example given at fig. 2 is from a younger stem, and the ornamentation is 

 slightly stronger than on the specimen seen at fig. 1. The leaf scars also occupy a 

 somewhat larger portion of the ribs, but these differences I believe to be due to the 

 different ages of the specimens. 



The ornamentation of the ribs is much more delicate than that of Sigillaria rugosa 

 Brongt., which has a distinctly continuous band of punctate-rugose ornamentation 

 and a plume-like marking above the leaf scar, which in Sigillaria Candollei is absent. 



The lateral angles of Sigillaria rugosa Brongt. are also more prominent than 

 those of Sigillaria Candollei Brongt., though in the former species they are 

 frequently obscured. 



Locality. — Kinlet Colliery, 1 mile S.W. of Highley, Shropshire. 



Horizon. — Shales associated with the Brooch Seam. Westphalian Series. 

 (Fig. 1, Pr. 1476; fig. 2, Pr. 1489.) 



Sigillaria nudicaulis Boulay. 

 PL III, figs. 2, 2a, 3, 3a. 



1876. Sigillaria nudicaulis, Eoulay, Le terr. houil. du Nord de la France, p. 42, pi. iii, n>s. 4 and 4 bis. 



(Excl. syn.) 

 1886. „ „ Zeiller, Flore foss. bassin houil. d. Valen., p. 524, pi. lxxxiii, fig. 6. 



1910. cf. „ ,, Deltenre in Renier, Paleont., pi. xxix. 



Description. — Stem ribbed, furrows straight, leaf scars distant, orbicular or oval, 

 upper margin slightly emarginate, lower margin rounded, lateral angles not promi- 

 nent, rounded, with or without short decurrent lines ; cicatricules three, central 

 punctiform, lateral straight, extending below the vascular cicatricule. Ligule pit 

 situated immediately above the leaf scar. 



Outer surface of cortex bears a few more or less obscure lines above the ligule 

 pit, and sometimes a few short transverse wrinkles immediately below the leaf sea r ; 

 other portions of the rib surface are very faintly striated longitudinally, but all the 

 ornamentation is so delicate that to the unaided eye the cortex appears to be smooth. 



Decorticated surface longitudinally striated. 



Remarks. — The specimen given at PI. Ill, fig. 2, of which a portion is enlarged 



