The Ohio VS^aturalist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
LIBRAS 
NEW YOi 
BOTANIC 
GARDEN 
Volume XII. 
APRIL. 1912. 
No. 6. 
TABLE OF CONTENTS 
Schaffner— The North American Lycopotls without Terminal Cones 497 
Conger— S ome Entomophilous Flowers of Cedar Point. Ohio 500 
Schaffner— Key to the Fruits of the Genera of Trees of the Northern United States, 506 
Metcalf— Meeting of the Biolog cal Club 512 
THE NORTH AMERICAN LYCOPODS WITHOUT 
TERMINAL CONES. 
John H. Schaffner. 
There has been some hesitancy among fern students in recog- 
nizing the validity of Lycopodium porophilum Lloyd and Under- 
wood as a species. By some it is regarded as a variety or form of 
L. lucidulum Mx. This is probably due to the intermediate 
character of the juvenile forms. Mature plants of L. porophilum, 
however, as determined by the writer resemble L. selago L. more 
closely. In Ohio one can collect either form without difficulty 
and numerous specimens have been sent to the Ohio State Her- 
barium. The species was reported for Ohio by the writer in the 
spring of 1905 (Ohio Nat. 5: 301) as occurring 'in Fairfield county. 
In December, 1906, while in New York the matter was discussed 
with Dr. Underwood himself and a careful examination was also 
made of the original specimens at the New York Botanic Garden. 
Since that time the Ohio plants have been L. porophilum to the 
writer and the species a good species. 
Underwood’s description in “Our Native Ferns and their 
Allies, Sixth Edition, Revised” defines the typical Ohio specimens 
very well and also gives the characterization of the two related 
species correctly in their typical form, although it does not empha- 
size the character of the general habit. Condensations of the 
species, descriptions are as follows: 
Lycopodium porophilum. Leaves flattened at their bases 
and ultimately more or less reflexed. Prostrate portion of stems 
short , abundantly rooting, curving upwards, then dichotomously 
branching 1-3 times to form a rather dense tuft (2-4 in. high) of 
vertical stems, densely clothed with spreading or reflexed leaves; leaves 
entire or very minutely denticulate. Sandstone rocks. 
497 
