438 
The Coal of Australia. 
termediate in form, neuration, and (I think) mode of attachment 
of the pinnules to the rac'uis, between Zamites and Pecopteris, 
for the reception of those two plants. 
One specimen has occured in the fine sandstone of Clark’s Hill, 
N. S. Wales. 
Class Endogens. (Al. Palmales.) 
Ord. Palmace.se. 
ZeugophyHites elongatus (Mor.). 
Common in the shales of Mulubimba, N. S. Wales. 
Class Exogens. ( Al. Amentales.) 
Ord. Casuauinace* (?). 
Phyllotheca (Br.). 
M. Brongniart, in his “ Prodrome,” founds this genus for a 
single species, the P. australis, of which he mentions having a 
large number of well-preserved specimens, which he describes as 
“ des tiges simples, droites, articulees, entourees de distance en 
distance par des galnes appliquees contre cette tige, comme dans 
les Equiselum, mais termin6es par de longues feuilles lineaires, 
qui remplacent les dents courtes des gaines des Prfeles. Ces 
feuilles sont, ou dressees, ou plus souvent etalees, et m6me 
reflechies; elles sont lineaires, aigues, sans nervure distincte, au 
moins deux fois plus longues que la gaine. Les gaines ellesmemes 
presentent de legers sillons longitudinaux, qui disparaissent v&rs 
la base, et qui semblent correspondre it 1’intervalle des feuilles, 
comme les sillons des gaines des Equisetum correspondent & 
1’intervalle des dents. La tige, dans 1’espace qui separe les gaines, 
paroit lisse ; mais sur des fragmens de tiges un pen plus grosses 
qui appartiennent probablement a des individus plus agds de la 
mime plante, on voit des stries regulicres, presque comme sur les 
Calamites.” While, on the other hand, Messrs. Lindley and 
Hutton in their “ Fossil Flora” (article Hippurites gigantea) 
state, that having examined specimens communicated by Dr. 
Buckland (from whom also Brongniart received his), they found 
Brongniart’s description inaccurate, and that the leaves, instead of 
springing from the edge of the sheath, arise immediately from the 
stem, and having in addition to the whorl of distinct leaves “ a 
