« > T r 
38 Nr. 4. L. KoLpErup ROSENVINGE: 
on Gymnogongrus norvegicus, named by SCHMITZ Aclinococ- 
cus pelleformis', and observed the germination of the 
tetraspores produced by them, and he found that these 
nemathecia are the true organs of the Gymnogongrus, oc- 
eurring only on the asexual plants. I have found the same 
for the nemathecia of Phyllophora epiphylla (Ph. rubens), 
according to SCHMITZ belonging to a parasite Colacolepis 
incrustans. This will be mentioned in another paper where 
also the nemathecium of Ahnfeltia plicata, considered by 
SCHMITZ as a parasite, Sterrocolax decipiens, will be trea- 
ted of. 
I am much indebted to Dr. HENNING PETERSEN for 
kindly giving me fixed material of Phyllophora Brodiæi, to 
the same and to Mr. Erik J. PETERSEN m. sc. and Mr. G. 
NYGAARD m. sc. for their valuable aid in executing the 
photographs reproduced on the plate. 
* PHILLIPS erroneously names it Colacolepis peltaeformis (1. ce. p. 251). 
