10 AMERICAN FERN JOURNAL 
no adequate study of the ferns could be made, but a 
five-mile walk through the jungle along the south side 
of the river from Ahlajuela to El Vigia furnished a 
_ general idea of the country. Most of the ferns found 
here had been seen in greater or lesser abundance in 
the Juan Diaz country. The trees up the Chagres 
were much larger in every way than those in the Juan 
Diaz forests, and consequently there was an increase 
of epiphytic ferns. Quantities of Dryopteris patula, 
Elaphoglossum spathulatum, Polypodium phyllitidis, P. 
occultum, P. polypodioides, Vittaria, and Ananthacorus 
exemplified this. 
‘FRIUOLES, CANAL ZONE 
The many short trips which I made in the Pacific 
section of the Canal Zone between Culebra and Balboa 
proved so uninteresting from a fern standpoint that I 
was rather inclined to belittle the whole Zone and con- 
centrate in the Juan Diaz country. In the latter part 
of January, however, I experimented in the neighbor- 
hood of Frijoles along the eastern shore of Gatun Lake. 
And such a wealth of ferns! Many of the Juan Diaz 
species were there, while a very great number not found 
elsewhere on the Isthmus were gathered. 
Here let me insert a word of advice to the fern col- 
lector who may be “passing through” the Zone with 
but a day or so for botanizing. Take the train to 
Frijoles, walk north along the tracks for a couple of 
miles and explore the ten or twelve little gullies which 
you will pass on the way. It isa very accessible region 
and thorough investigation will undoubtedly result in 
the discovery of many species new to science. 
As previously mentioned, the damming of the Chagres 
River at Gatun caused the waters to flood a vast area 
and to creep up the countless valleys of streams tributary 
to the Chagres. The presence of this great body of 
