Postelsia 8G 
saprophytic adaptation. The contrary however 
is experienced. Of the group of holosaprophytic 
plants only two representatives were found and 
even these of very infrequent occurence. Jono- 
tropa hypopitys was met with in the valley of the 
Gordon and Newberrya congesta on the wooded 
slope back of San Juan harbor. 
Of hemisaprophytic plants, which in north- 
ern forest are generally represented by many 
Pyrola species, only Moneses uniflora was found. 
It too occurs infrequently. 
Statistics and Summary. 
7 
To aid in the composition and distribution 
of the plant population of the region as set forth 
in the preceding pages, the following catalogue 
and statistics are set down. The list includes 
only those Pteridophytic and Spermatophytic 
plants which have come under the observation 
of the writer and does not claim to be fully 
exhaustive and complete for the reason that in 
vestigation covers only a period of the year. 
Further field work both earlier and later in the 
season would undoubtedly add a few more 
