24. J. W. DAWSON ON CRETACEOUS AND TERTIARY FLORAS 
22. DIOONITES BOREALIS. 8. N. (PI. III, Fig. 37.) 
Petiole thick, longitudinally striate. Leaflets 16 millimetres wide, parallel-sided, decur- 
rent at base on the petiole, longitudinally striated with about 15 striæ. Length of leaflets, 
9 centimetres or more, terminations unknown. 
This is a fragment of a leaf similar to that of Dioonites Columbianus from the Queen 
Charlotte Islands, but differing in size and venation. Similar leaves have been found by 
Fontaine in the Lower Cretaceous of Virginia, and in Europe they are considered to be 
characteristic of the Lower Cretaceous. In America, however, Diodn edule still survives as a 
representative of this type of cycads. 
Collected by Mr. R. G. McConnell, on Willow Creek, N. W. Territory. 
2.— Upper Cretaceous of Vancouver Island. 
1. NEUROPTERIS Castor, 8. N. (Fig. 14, 14a.) 
Pinnules at right angles to rhachis, closely set, oblong, abruptly pointed, attached by 
whole base. Midrib strong, fading before reaching the point. Veins obscure, but apparently 
at an acute angle to the midrib. Very abundant at Beaver Harbour. 
Collected by Dr. G. M. Dawson. 
2. TÆNIOPTERIS PLUMOSA,S. N. (Fig. 15.) 
Resembles closely 7. Vittata and T. Gibbsii of Newberry, but has the veins forming an 
angle of 50° with the midrib, which is very strong, giving off to the even margin strongly 
marked parallel veins. Breadth 2 centimetres; length and termination unknown. 
Collected by Dr. G. M. Dawson at Baynes’ Sound. 
3. NILSSONIA LATA, 8S. N. (Figs. 15, bis. 15 a.) 
Frond at least 6 centimetres broad. Pinnules about 1.2 centimetres in breadth, each 
with about 30 parallel veins at angle of 50° from the rib. Pinnæ separated from each other 
by narrow acute lacunæ. Midrib broad and channeled. Terminal pinna a little broader 
than the lateral segments. 
| Collected by Dr. G. M. Dawson at Baynes’ Sound. 
4. PTERIS (OLEANDRA) GLOSSOPTEROIDES, 8. N. (Fig. 16.) 
Pinna lanceolate, 2 centimetres wide, 8 or more long. Midrib strong, giving off 
ascending curved twice-forking veins, which from their flexuous character sometimes 
appear netted. Margin of pinna apparently inflexed or thickened. Resembles Oleandra 
arctica, Heer, from Greenland ; buthas the veins at a more acute angle. 
Collected by Mr. J. Richardson, at Protection Island. 
5. SPHENOPTERIS ELONGATA, Newberry. (Figs. 17, 17 a.) Newberry, Boston Journal of 
Natural History, Vol. VIL, No. 4. 
This species was described by Newberry, from specimens collected at Orcas Island, 
on the Coast of Oregon. It is compared by him with SN. Verlettii, Brngt. It is doubtfully 
referred to Sphenopteris, but as the fructification is unknown, may be allowed to remain 
there at present. 
Collected by Mr. J. Richardson, at Protection Island. 
