424 University Geological Survey of Kansas. 
Sigillariastrobus. 
Sigillariastrobus sp. 
Sporangiophores obovate, close, 4 to 6 mm. long, 3 mm. 
wide, club-shaped, short pedicellate, largest at the upper end. 
Cone flattened by crushing. The sigillara cones of this type 
are numerous in the abandoned coal-mine at Blue Mound, in 
association with stems of Szgillaria. They reach a consider- 
able length—as much as a foot or more. Not infrequently the 
macrospores are preserved in place. 
Formation and locality: Le Roy shales at Blue Mound. 
Sporangia, detached. 
Two specimens from the Le Roy shales at Blue Mound show 
numerous clusters of sporangia detached and lying alongside 
a rachis. They were apparently attached to the rachis by a 
short pedicel. The sporangia are in clusters of fours, united 
at the base. They are about 1 mm. in length, the free ends 
being pointed. The cluster of sporangia is square in cross- 
section at the base. The rachis on which from their position 
they seem to have been borne, is slender, striated, and without 
attached leaflets. 
HQUISHTALES. 
CALAMARIBA. 
Calamites SUCKOW. 
Calamites ramosus Artis. 
This species is rather abundant in the Le Roy shales. 
Calamites suckowii Brongn. 
Formation and locality: Found at Lansing, and very abun- 
dant in the Le Roy shales; also present in the Scranton shales 
at Scranton. 
Calamites cistii Brongn. 
This species is not uncommon in the Le Roy shales at Law- 
rence. 
Asterophyllites BRONGNIART. 
Asterophyllites equisetiformis (Schloth.) Brongn. 
Formation and locality: Found in the Cherokee shales at 
Lansing, Chanute shales at Thayer, and in the Le Roy, Law- 
rence and Scranton shales. The few specimens observed from 
Lansing are all of a less robust type than is common in the 
higher formations. The species has also been obtained by 
