.MATTHEW] FLORA OF THE LITTLE RIVER GROUP NO. II lOl 



DESCRIPTION OF THE PLATES. 



Plate I. 



Dadoxylon oitangondiamim Dn. The cotype in the author's cabinet described by 

 Sir William Dawson. It shows the annual or seasonal layers. The 

 letters « to / distinguish the several zones of wood noted in the text, 

 and are placed at the edge of the figure of the fossil opposite the middle 

 of the zone ; except / which is placed where the layers of this, the outer 

 zone, are most distinct. Natural size. From the Dadoxylon Sand- 

 stone of the Little River Group at' St. John, N.B. See p. 77. 



Plate II. 



Figs. 1-G. Dadoxylon ouangondianum Dn. — Fig. 1, tangential section. Fig. 2, 

 transverse section, a narrow zone of autumnal wood between two layers 

 of larger cells. Fig. 3, radial section, showing medullary rays and 

 pores. All the above mag. 100 diam. Fig. 4, a cell showing the 

 aréoles and transverse slits, mag. 300. Fig. 5, part of young stem with 

 Artisia pitch. Nat. size. Fig. 6, section of the same mag. f to show 

 the diaphragms and central annulated space. All the above after 

 Dawson. From Dadoxylon Sandstone at Barrack Point, St. John. 

 See pp. 78-79. 



Figs. 7-9. Johannophyton discrepans, n. gen., Dn. sp. Fig. 7, vegetative branch 

 showing large and intermediate leaves on the same rachis. Nat. size. 

 Fig. 8, fruit of same, three carpels, detached from stem. Fig. 9, a single 

 carpel showing the reticulated epidermis. Both mag. f. All from 

 upper part of the Lower Cordaite shales at Fern Ledges, Lancaster, 

 N.B. See pp. 83-S.j. 



Plate III. 



Johannophyton discrepans n. gen. Dawson sp. Fig. 1, vegetative broad leaf (un- 

 derside). Fig. 2, part of pinna or branch of the intermediate form. 

 Fig. 3, pinna with leaves of narrow form. All natural size. Figs. 4 

 and 5, base and tip of leaf, showing venation. Fig. 6, middle of leaf, 

 enlarged to show venation. All the above after Dawson. Fig. 7, 

 peduncle with narrow leaf at the base. Fig. 8, peduncle with whorl 

 of bracts at the base. Fig. 9, branch with pinnules of intermediate 

 form. The above natural size. Fig. 20, group of bracts mag. | 

 (Figs. 7 to 10 from the author's cabinet.) From Lower Cordaite 

 shales at Fern Ledges, Lancaster, N.B. See pp. 83-85. 



Plate IV. 



Ginkgophyton Leavitti n. gen. and sp. 



Fig. 1. Slab with different parts of the plant. — a Rhizome. — 6 Ordinary leaf. — 



c The fruit. All natural size. 

 Figs. 2 and 3. The same species, showing two groups of the ordinary leaves. Nat. 



Size. 

 Fig. 4. The same, ordinary leaf, mag. |. 



Fig. 5. The same species, showing the large leaf. Natural size. 

 Fig. 6. The same, large leaf, mag. |. 

 Fig. 7. Same species, showing a spray of bracteate leaves. Nat. size. 



