Johnson & Gilmorh — Occurrence of a Sequoia at Washing Buy. 349 



sti'ucture of the leaf of a number of Conifers, citing Mahlert in support, notes 

 that ill jS. gigantea all the stomata lie with their longitudinal axis parallel to 

 the direction of the bundle, while in 6'. sempervircns numerons transitional 

 positions also occur. In our investigation of Sequoia, before we had Florin's 

 results, we found that, while the stomata in S. sempermrens lie parallel to the 

 midrib in the normal spreading foliage, they are less regularly arranged in the 

 leaves of its fertile shoots, and in the general foliage of S. gigantea. 



Taxodium disticJmm shows the stomata in the two bands arranged length- 

 wise in series, but also transversely in rows. Each stoma, on the whole, lies 

 with its long axis horizontally placed, i.e., at right angles to the direction 

 of the vein. Taxus haccafa shows stomata in vertical rows parallel to one 

 another, the individual stomata in each vertical row looking like links in a 

 chain, with vertical longitudinal axis. The mode of arrangement of the 

 stomata should prove a valuable diagnostic character in distinguishing 

 between fossil Taxodimn and Sequoia, e.g., T. distichitm miocenicum and 

 S. Laiigsdorfii, in which we have so far failed in our attempts at restoration by 

 maceration. 



"While the adpressed squamiform leaf, 2-4 mm. long, is the prevailing 

 type in S. Couttsiae, narrow, acieular, or subulate, sometimes markedly 

 divaricate leaves, 4 mm. long, also occur (PI. XIII, ligs. 6-9). We have many 

 twigs bearing these leaves only, and were struck by their similarity to the 

 specimens from the Interbasaltic beds of Co. Antrim, named by Baily S. du 

 Noijeri (8). One specimen (PI. XIV, fig. 1) from the Grainger collection in the 

 Belfast Museum shows both types on the same shoot, and the resemblance 

 to the fertile shoot of S. gigantea is marked. The type specimen of S. du 

 Noijeri Baily (PI. XIV, fig. 2) shows impressions only, in the ironstone. As 

 our photograph of the type shows, Baily's drawing (PI. XIV, fig. 3) makes the 

 leaf much too long. This figure may have led Gardner to conclude that *S'. du 

 Noyeri was really a Cryqitomeria. We are of opinion that it is a Sequoia and, 

 at the most, a form of S. Couttsiae. 



It is clear from Saporta's illustrated account of S. Couttsiae var. jao/y- 

 morplia, that a form of S. Couttsiae grew in the south-east of France not 

 unlike the du Noyeri form of 8. Couttsiae in north of Ireland, the Baltic 

 region, and Greenland. 



If Gardner's drawings of cones of the Glenarm material are correct, then 

 we must admit that Cryptomeria, now confined to China and Japan, grew in 

 Co. Antrim in the Tertiary. It is not, however, recorded elsewhere in the 

 fossil state. We have restored the epidermis of the leaf of a Conifer from 

 Glenarm. It has all the characters of a Seqiioia. In the same slab are 

 winged seeds (PI. XIV, fig. 13) indistinguishable from those of S. Couttsiae, 



