426 
PALAEONTOLOGY OF ILLINOIS. 
SELAGINLE, EndL 
Genus LYCOPODITES, Brgt. 
111. Geol. Kept., •vol. ii, p. 447. 
LYCOPODITES ANNULAKIaEFOLIUS, Sp. HOY. 
PI. xxi, fig 5. 
Stem round, as seen in fig. 5 dichotomous, bearing opposite 
leaves, apparently united by two at the base, half embracing 
and slightly decurrent; leaves linear-lanceolate, obtusely 
pointed, slightly narrowed to the base, marked with a medial 
nerve, disappearing above the middle, open or slightly reflexed. 
The mode of branching of this species, bj a peculiar kind of dichotomy ob¬ 
servable in some Lycopodia,ce& of our time, the Rucllise, for esample, indicates 
the nature of this peculiar plant. It is not quite evident that the leaves are 
approached by pairs, and placed in two parallel row^ or distichous ; the speci¬ 
men shows nothing more definite than what is represented by tfye figure. 
No species of Lycopodites of the Coal Measures has been as yet published 
having leaves of the same form and type as ours ; the only one somewhat com¬ 
parable to it is Lycopodites macropTiyllus, Cold. Flor. Saar., i, p. 12, pi. 1, fig. 5. 
On a concretion from Mazon creek; in the cabinet of Prof. A. H. Worthen. 
Lycopodites Meekii, Sp. nov. 
PL xxvi, fig. 6 and Oa. 
Stem very slender, about one-sixth of an inch thick toward 
the base, dichotomous, with continuous, elongated branches, 
scarcely diminishing upwards; leaves imbricated all around, 
narrow, linear, lanceolate, acute, erect, or slightly open and 
curving upwards at the point. As seen, fig. 6a enlarged, 
these small leaves are thick, concave on the inside, sharply 
pointed, not enlarged, but semi-embracing at the base, and 
without trace of a nerve. 
