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VICTORIA MEMORIAL MUSEUM. BULLETIN NO. I 
PliEONospoRiUM van c oxjv eri anum J. G. Agardh. Setchell & 
Gardner, 1903, p. 338. Vancouver island, J. G. Agardh; 
Esquimalt, Harvey, as Callithamnion thuyoideum . 
Callithamnion polyspermum Agardh. Setchell & Gardner, 
1903, p. 338 ; Harvey, 1853, p. 234. Vancouver island, J. G. 
Agardh; Esquimalt, Harvey; Departure bay, Victoria, on 
Gelidium and Ahnfeldtia, Macoun. This species has been re- 
ported from many localities, temperate and subtropical; it is 
not unlikely that further study may show that a group of nearly 
related species has been passing under this name. 1 
Ceratothamnion pikeanum (Harv.) J. G. Agardh, forma 
laxum Setchell & Gardner, 1903, p. 339; Harvey, 1853, p. 230, 
as Callithamnion pikeanum; P. B.-A., No. 943. Esquimalt, 
Harvey, as C, arhuscula var. pacificum; Victoria, Macoun. 
Ptilota filicina J. G. Agardh. Setchell & Gardner, 1903, 
p. 340; P. B.-A., No. 643; Harvey, 1853, p. 222, as P. cali- 
fornica var. condnna. Victoria, Macoun; Port Renfrew, 
Butler & Polley; Esquimalt, Harvey, fide specimen in Herb. 
Harvey, as P. californica. 
P. hypnoibes Harvey, 1853, p. 220; P. B.-A., No. 599. 
Port Renfrew, Butler & Polley. 
P. californica Ruprecht. Setchell & Gardner, 1903, p. 340; 
P. B.-A., No. 547; Tilden, Centuries, No. 307, as P. serrata. 
Port Renfrew, Butler & Polley, Tilden. Some specimens from 
this station approach P. hypnoides . 
Antithamnion floccosum (Mull.) Kleen, forma pacificum 
(Harv.) Setchell & Gardner, 1903, p, 341; P. B.-A., No. 147. 
Esquimalt, Harvey, as Callithamnion floccosum var. pacificum ; 
Departure bay, Victoria, Macoun; Port Renfrew, Butler & 
Polley. 
A. pylaisasi (Mont.) K jell man. Setchell & Gardner, 1903, 
p. 342; Harvey, 1853, p. 239; P. B.-A., No. 97. Esquimalt, 
Harvey, fide specimen in Herb. Harvey marked Callithamnion 
americanum . 
A. subulatum (Harv.) J. G. Agardh. Setchell & Gardner, 
1903, p. 342; P. B.-A., No. 944. Esquimalt, Harvey, as 
Callithamnion subulatum; Port Renfrew, Butler & Polley; 
small species of Cailiihamnion occurs partly endophytic in fronds of Cally- 
mema phyllophora; see Leavitt, 1904. Fruit has not been observed, the fronds seem 
immature; it may be a young state of some known species, or may be new. 
