FROM THE NORTH-WEST AMERICAN COAST. 163 
ently large, of such unwieldy objects is no easy task ; and Dr. Lyall 
deserves thanks and praise for the manner in whieh he has per- 
formed it, nor less for the great care with which he has preserved 
all his specimens, the minute localization of each, and the pains 
bestowed in furnishing extensive suites of each species. So va- 
riable are some of these Algw in form, that, without examining 
long suites of specimens of different sizes and ages, it would be 
difficult or impossible to say what was a species and what a variety. 
Even with the ample materials supplied to me by Dr. Lyall, I 
fear that I have not in every case succeeded in unravelling this 
tangle. 
MELANOSPERME. 
1. Fucus vesiculosus, var. evesiculosus, J. Ag. Sp. Alg. i. 210. 
Common between tide-marks. ^ Vancouver's Island; Esquimalt and 
Victoria Harbours. 
A narrower form on the outer sea-coast; a broader within the 
harbour. Also a very dwarf form from the outer sea-coast, 1-2 
inches high, once-forked and fruiting; very similar to the dwarf 
variety from the Canary Islands, described by Montagne, * Crypt. 
Canar.’ 
2. Fucus furcatus, Ag.? Ic. t. 14; J. Ag. Sp. Alg. i. p. 209. 
Between tide-marks. Esquimalt; Vancouver's Island. 
Of Agardh's plant I have seen no authentic specimen. Dr. 
Lyall’s specimens differ from F. vesiculosus, var. evesiculosus, 
chiefly in the more immersed, less defined midrib, the uniformly 
narrower frond, 2-3 lines, rarely 4 lines wide, and the more 
slender, compressed, not turgid receptacles. My F. Wrighti, 
from Japan, scarcely differs. I fear that neither ought to be 
regarded as other than local varieties of F, vesiculosus, which 
sometimes, even in Europe, occurs with as narrow fronds. The 
elder Agardh’s figure, above quoted, is worthless as a guide to the 
species described by J. Agardb. 
3. CYSTOPHYLLUM Lepipium (Rupr.). Caule crasso brevi, frondibus 
elongatis teretibus (crassiusculis) inermibus pinnato-ramosissimis, 
ramis undique egredientibus geminatis sparsisque basi sepe foliosis, 
foliis lineari-lanceolatis enerviis planis acutis, ramulis vesiculiferis sub- 
corymbosis, vesiculis sub apice ramuli indivisi solitariis ovalibus mu- 
cronatis, receptaculis ...........+.- ?— Cystoseira Lepidium, Rupr. 
Alg. Mar. Ochotzk, p. 155. 
On rocks below low-water mark. Entrance of Esquimalt Harbour; 
also dredged in 14 fathoms at St. Juan Island, 48° 30' N., 132’ W. 
