187G.] Knowledge oftlie Fossil Flora in India. 3S1 



EXPLANATION OF THE PLATES. 

 Plate XV. 



Figs. 1 — 2. Sphmophyllwm Trizygia, ling. Two branchlets showing well the charac- 

 teristic disposition of the leaflets in the articulation. Fig. la. One leaflet 

 enlarged to show the mode of origin and the distribution of the veins. 



Figs. 3 — 4. Yertebraria Indica, Eoyle. Fig. 3. Good specimen, with a branch exhi- 

 biting the same characters as the main stem. This specimen is particularly- 

 remarkable, as showing distinctly enough ribs on the surface, which in several 

 places (a a a) form " articulations." Fig. 4. A portion of a rootlet of the same 

 species. 



Plate XVI. 



Figs. 1 — 3. Schizoneura Gondivanensis, Feistm., branchlets and leaflets of this impor- 

 tant species. 



Fig. 4. Yertebraria indica, Eoyle, a stem exhibiting regular articulation, and conse- 

 quently the equisetaceous nature of this fossil. 



Figs. 5 — 7. SpAenopteris pohjmorplia, n. sp. Fig. 5, top portion of the frond. Figs. 6 

 and 7, leaflets from lower portions. The rhachis broadly winged. 



Plate XVII. 

 Figs. 1 — 3. Sphenopteris pohjmorplia, n. sp., illustrating pinna? from different portions 

 of the frond. Fig. 1. Top portion. Fig. la. A leaflet enlarged. Figs. 2 & 3. 

 Pinna and leaflet from the lower portion of the frond. Fig. 3a. One pinnula 

 enlarged. Ehachis broadly winged. 



Plate XVIII. 

 Figs. 1. 2. Alethopteris phegopteroides, n. sp. A very interesting type in the group 

 of Pecopterides, approaching most strikingly the living Phegopteris. Fig. 1. Shows 

 a portion of the frond and the disposition of the pinna? and the pretty thick rha- 

 chides. Fig. 2. Two entire pinnse with their apices. Fig. la. Illustrates the 

 disposition of the veins in the pinnula?. Fig. 2a. The top portion of the pinna. 



Plate XIX. 

 Fig. 1. 2. Macrotaeniopteris (Taeniopteris) danaeoides, Royl sp. (McClell.). Two out 



of many other specimens. Fig. la. Shows the distribution and the mode of 



furcation of the veins. 

 Figs. 3. 4. Palaeovittaria Kurzi, gen. et sp. nov. Fig. 3«. Shows the basal portion, 



with the midrib and secondary veins issuing from it. Fig. 4a. The relations of 



the secondary veins in the top portion. 



Plate XX. 



Figs. 1 — 2. Belemnopteris JYood-Masoniana, gen. et sp. nov. (N. B. — The two lobe- 

 veins are a little exaggerated.) Fig. 2. Eepresents what is believed to be the 

 top portion of the leaf of the same species. 



Figs. 3 — 4. Gangamopteris Whlttiana, n. sp. Two specimens with very large areoles 

 of that intermediate form between Glossopteris and Cyclopteris, which has lately 

 proved so frequent in our Barakur group. These specimens exhibit very well the 

 distribution of the vein-areoles in two directions towards the margin without any 

 midrib. 



