SELLARDS.| Fossil Plants, Upper Paleozoic, Kansas. 427 
Sphenophyllum emarginatum Brong. Pl. XLVII, figs. 7, 8. 
Sphenophyllites emarginatus Brongniart, Class. Veget. Foss., p. 234, 
pl. 2, figs. 8, 8a, 8b, 1822. 
Sphenophyllum emarginatum Brongniart, Prodrome, p. 68, 1828. 
This species as developed in the Le Roy shales has leaflets 
10 to 16 mm. long, 9 to 10 mm. wide at the apex. The sides 
are more or less concave and the apices obtusely rounded and 
lightly toothed. The veins count 12 to 16 to the leaflet and 
originate from two main veins at the base. 
Formation and locality: Le Roy shales, Lawrence, Kan. 
Sphenophyllum majus Bronn. Pl. LVII, fig. 4. 
Rotularia major Bronn, in Bichoff: Kryptogam, Gewachse, vol. 2, 
p. 89, pl. 18, fig. 2a-b, 1828. 
BELO ACen majus Bronn, Leth. Geog., vol. 1, p. 32, pl. 8, fig. 
a-b. 
Sphenophyllum longifolium (Germ.), Lesquereux, Coal Flora, vol. 1, 
Do BBS Wolls Bo jOs WAG, olls Gil, ie, ©. 
Stem distinctly ribbed; internodes 2 to 3 cm. Verticils often 
overlapping, of six (rarely more) wedge-shaped leaflets, lat- 
eral margins straight, free at the base, distal border truncate 
or slightly rounded. Leaflets 12 to 28 mm. long, 8 to 15 mm. 
wide at the apex, narrowed to a slender free base. Leaflets 
toothed, often more or less deeply bifid. Nerves distinct, aris- 
ing from two basal nerves, spreading and dichotomizing, be- 
coming 12 to 24, ending in the teeth. 
White has restored this species to the early name S. majus. 
As made clear by that author, the plants known in the older 
American literature under the name S. longifoliwm really be- 
long to S. majus. 
The large example figured here has leaflets 26 mm. long, 
15 mm. wide at the top. The stem is coniparatively slender. 
The leaflets are only slightly rounded at the distal border, 
and are not bifid. A smaller specimen has leaflets 13 to 14 mm. 
long, 10 mm. wide, most of them deeply lacinate. 
Formation and locality: Cherokee shales, Lansing. 
