ZOOLOGICAL AND BOTANICAL ASSOCIATION. 135 



(in.) 



Plate IV., Fig. 3. — Natural size ; stem of smaller branch of same 

 plant as last, showing bases of leaves at lower portion of external sur- 

 face. The peculiarity of this specimen consists in the spiral tube, filled 

 with coaly matter or peroxide of iron, which twines round the stem, as 

 shown in the figure. Professor Phillips, of Oxford, has suggested to me 

 that it may (possibly) be the stem of some kind of twining fern, which 

 has compressed the stem so closely as to penetrate below the external 

 surface. The bases of the spinous leaves are well shown in the figure. 



Locality : Harrylock Bay, county of "Wexford. 



Geol. horizon : Same as last. 



(IV.) 



Plate X. — Casts of the stems (natural size) of the same plants as 

 those figured in Plate IV. Figs. 1 and 2 show the cast of the leaves at their 

 insertion into the stem. Fig. 3 shows the raised coaly bases of the spi- 

 nous, lanceolate leaves themselves. They exhibit but a rude tendency 

 towards a spiral arrangement, which may be owing to their very im- 

 perfect preservation. 



The plants figured in Plates IV. and X. are too imperfectly pre- 

 served to be named, and appear not to have grown in their present 

 position, but to have been drifted from a distance. They occur in a 

 loose, friable, micaceous, white sandstone, and are accompanied by about 

 an inch and half thick of anthracite coal, occasionally passing into an 

 ochraccous powder, in which no vegetable structure is visible. 



Locality : Harrylock Bay, county of Wexford. 



Geol. horizon : Yellow sandstone, 380 feet below the Carboniferous 

 Limestone. 



Professor Harvey, M.D., F.R.S., read the following description 

 of— 



THREE NEW 8PECIES OF SOUTH AFRICAN PLANTS. 



Since announcing my intention to prepare a new " Flora Capensis," 

 or descriptive catalogue of the plants native in Southern Africa, several 

 correspondents at the Cape have sent to the University Herbarium 

 collections of dried specimens of South African plants, in aid of the 

 proposed work. I bring before the Association this evening three 



