IOWA ACADEMY OF SCIENCES. 
115 
Porella pinnata L. Thus far collected only in Jackson 
county, in 1896. 
P. platypJmjlla Lindb. Very common on mossy banks, etc., at 
Iowa City, Mason City and Ft. Dodge; also near Decorah {P.C. 
Myers.) Reported from Story county by Bessey {1. c.). 
Ptilidium ciliare Nees. On rotten logs; Iowa City; not rare. 
Lophocolea Iieterophylla Nees. Very common on mossy banks 
near Iowa City. 
GhiloscypJms polyantJios Corda. Common in moss on moist 
banks, rotten logs, etc. ; Iowa City, Ft. Dodge, and Wildcat 
Den, Muscatine county. 
Jungermannia ventricosa Dicks. On moist banks; in moss 
at Iowa City and Ft. Dodge, and on Anthoceros in Muscatine 
county, along the Cedar. Also collected at Iowa City by Miss 
Linder. 
Blasia pusiUa L. Abundant on dripping rocks at Wildcat 
Den, Muscatine county. 
Order Anthocerotace^. 
Anthoceros Icevis L. On wet clay-banks, Johnson county. 
Also collected by Miss Linder. Not common. Also reported 
from Story county by Bessey {1. c). 
A. punctatus L. On low, wet banks in Muscatine county, 
along the Cedar river. 
Order Marchantiace^. 
3Iarchantia jjolymorplia L. Usually on rather moist banks 
and slopes, — sometimes on hard- beaten soil and cinders, as 
along the streets of Iowa City. Common at Iowa City, Mason 
City, and Fores . City. Also, Emmet county {R. I. Gratty) and 
Decorah (P. G. Myers). Reported from Story county by Bessey 
{l. C.). 
Gonocephalus conicus Dumort. Very common on moist banks 
at Iowa City, and not uncommon in Muscatine and Louisa 
counties. Also at Decorah (P. (7. Reported from Story 
county by Bessey (?. c.). 
Grimaldia barbifrons Bisch. Common on rocky banks and 
bluffs; sometimes in very barren places. Johnson, Linn, Mus- 
catine, and Lyon counties. 
Aster ella liemisphcerica Beauv. Not rare at Iowa City, on 
mossy, rocky banks, etc. 
Lunularia vulgaris Raddi. Introduced. Formerly common 
in the hothouse at Iowa City. Never fruiting here. 
