[MATTHEW] PALÆOZOIC ROCKS OF SOUTHERN NEW BRUNSWICK 99 
UPLAND FLORA. 
Cordaites Psilophyton ? 
‘Dadoxylon 
EXPLANATION OF PLATES. 
PAGE ie 
Himantophyton castorense. 1. Leaf, showing base and distal part. 
2. Small leaf showing basal spur and vascular band. 3 and 4. Types of 
leaf bases. 5, 6 and 7. A group of leaf bases. 8. Leaf, forking near the 
base. 9. Basal part of fruiting stem. 10. Middle part of fruiting 
stem. 11. Upper part of this stem with peduncular branches. 12. 
Peduncular branches with peduncles and bracts attached. 13. Same 
with circinate tip and detached bract and seeds. 14. Peduncles and 
fruit as preserved in the shale. 15. A group of seeds on a layer of 
shale. The three last figures magnified 2 diameters. 15a. A seed, 
mag. 10 diam. 15b. A similar seed shrunken in, mag. 10 diam. 16. 
Minute branches of fruit stem. All from the shales of the Div. 1. at 
Beaver harbour, N.B. 
PLATE "IT 
Arthrostigma arietense.—1. Large stem, flattened, showing a node. 
2. Lower part of stem, showing branches and scars of attachment. 3. 
Middle of stem showing closer nodes. 4. Branch showing 4 whorls of 
leaves. 5. Showing close but obscure nodes. 6. Showing similar 
nodes, but closer and a dichotamous branch. .7 and 8. Larger branches 
(? of this species) showing irregular dichotomous branching. 9. Me- 
gastachya with this species, with scales or bracts attached. 10. A 
detached leaf. All natural size and from the same shale bed as the 
preceeding species, at Beaver harbour, N. B. 

1 Determined from the stems 
