Antediluvian Zoology and Botany. 265 
genera Zamia and Cycas, Dracee‘na draco, Cactus, and Filicites. 
( fig. 50.) 
Jointed and fluted stems of plants [reeds ?] abounding in shale in the Hastings sandstone series. 
The fragments are introduced here chiefly because they do not appear. in Mr, Mantell’s Fossils of 
Tilgate Forest. 
Some singular vegetable productions, which occur silicified 
in the freestone of the Isle of Portland, and are locally termed 
petrified birdsnests, have recently eee subjected to the ex- 
amination of Mr. Brown, Dr. Buckland, and Mr. Loddiges, 
who conceive them to be the bases of the stems of plants allied 
to Zamia and Cy cas, and their structure is such as to suggest 
their forming a link between the coniferous plants and the 
Cycadez. (fg.51.) These also are proper to tropical climates. 
rae ay } 
mel a ee i H 
he es oe 
Cycadedidea microphYlla, silicified in the Portland oolite. Tyans. Geol. Soc., vol. ii. pl. 49. fig. 2. 
Vo. III. — No. 13. T 
