380 BULLETIN OF THE BUREAU OF FISHERIES. 
Of the 84 genera found in the Beaufort region, 24 genera and 46 species reach here 
their northern known limit on our coast (Tables 5, 7), while 4 genera and 9 species reach 
their southern known limit in this region (Tables 6, 7). Furthermore, 20 species not 
previously recorded for North America have been found, 11 of these being new. Of the 
133 identified species and varieties, 78 (58.6 per cent) are recorded for Europe, and 41 
(30.8 per cent) for the Pacific coast of North America. 
The 46 species reaching their northern limit here (Table 5) have been found as 
follows: 
Growitig in BeauforthHarbors pera eile a ctie el rme cio oto ererotayaiete ls earns ete eater 16 
Growingionly‘ott coral reef. 0720. 22 Oi REE Sees tees Alt eee 16 
Found only onzBorte Beach hx) ui) 275 BRIGG. Bynes SOS iets oot ete II 
Known only,from other localities.....c-alatt -try-aemewey alts sos - 55 gat ae aaale 3 
The 9 species reaching their southern limit here (Table 6) have been found as 
follows: 
Growingiit BeattiontrHarbOre. am cae ore ss ets teaeeiate vite ec nferteebelaissayiemiere: coe yG 
Growing only oncordl:secf!? . ROI.) Ey, lee, Re. Se. Bae I 
Known only from otherlocalities.ji.ic<.). , (aisehlon- bth k Qoit Wk SS SORE Seis B I 
The 20 species which are new to North America (Table 7) have been found as 
follows: 
Crowiiip ist BeditortsHarbors ask. nocache toe tin laseentetetcle or tncle ciertie eel et eaerel ae 6 
Growingiqnlyjoncoralirecisz..2J ai. 29ST 9285 §. .,. IRS Se, SAS 12 
Found only on Bopue Beach. -tetgilesies dates enced. Soasareute h-bieotes I 
Knowntonly tromiother localitiess. acts iam e-ytoteete cietetelesr-ire erotic eis oe oe ees I 
The most striking characteristic of the flora is the preponderance of red and the 
paucity of blue-green alge. The large number of red alge indicates the southern 
relationship of the flora; but here also is found a large northern element, as was shown 
above. The small number of blue-green alge is not easily explained. At other places 
the number is probably greater than is indicated here; indeed, the author saw large 
masses of undetermined Myxophycee covering the rocks of a jetty near Georgetown, S.C. 
At Ocracoke, N. C., also there were observed masses of blue-green algae densely covering 
the ocean beach just beyond the high-tide line for many square meters and covering the 
wharf piles between tide lines. The number of species found in these places was not 
large, but other species may have been present. At Beaufort, N. C., however, although 
one species (Lyngbya confervoides) is very abundant, covering walls and jetties for 
considerable areas between tide lines, repeated careful searches have failed to discover 
any other species in abundance and have yielded a total of only five species growing in 
the harbor. 
The relative richness, in other respects, of the Beaufort flora as compared with the 
flora of other localities is shown by the fact that of the 142 species and varieties recorded 
for the region 132 were found at this place. While a part of this numerical preponder- 
ance is undoubtedly due to the fact that Beaufort has been studied more thoroughly 
than other localities, a large part is due to an actually greater richness of the flora of 
this region. At no other locality has the author found anything to approach the number 
of individuals or of species that may be observed at Beaufort on a single collecting trip 
at any time during the summer. 
