Pa eS eee 
1903] FLORA OF SOUTHERN CALIFORNIA 279 
species, the Phycophyta 87, the Carpophyta 748, and the Bry- 
ophyta 86. 
The Musci and Hepaticae appear to be poorly represented in 
our flora, as might be expected from the arid environment. Of 
the former Professor McClatchie was able to enumerate but 63, 
and of the latter but 23, and few additions have since been 
made to these numbers. This compares poorly with the 312 
Musci and the 90 Hepaticae known in the much smaller area of 
New Jersey. 
The lichen flora is more abundant, but is confined to species 
adapted to arid conditions. Fungi are less abundant than in 
regions enjoying a moister climate, and this is particularly true 
of the fleshy fungi. The algal flora, on the contrary, being for 
the most part unaffected by atmospheric aridity, and enjoying 
varied environments, is certainly very rich. Of its lower forms 
the diatoms are abundant and varied, but the desmids, to speak 
from my own experience, are discouragingly few. 
If one descends still lower to those dubious organisms, the 
Myxomycetes, they also seem to have a very limited represen- 
tation. Fora number of years I have made the collection of 
the slime-molds a special object, but with very meager results. 
Only 18 species, representing 12 genera, have been obtained in 
a condition which permitted determination, a number less than 
might have been secured in an hour in more favorable climates. 
I have never found them in abundance, and seldom at all except 
after long-continued damp and rainy weather. 
SAN BERNARDINO, CAL, 
% BRITTON, N. L., Catalogue of Plants found in New Jersey. 1889. 
