70 
Fam. CHORDARIACEAE. 
Gen. Stilophora, J.Ag. 
S. vhizodes, J. Ag. 
Fig.: Harvey I, 309. 
District : Port Erin. 
Note: Single specimen cast up in Summer bearing unilocular sporangia. 
Gen. Chordaria, Ag. 
C. divarvicata, Ag. Very rare. 
Fig.: Harvey I, 52. 
District: Port Erin. 
Reproduction : Unilocular sporangia in Summer. 
Notes: Has only been found cast up on the shore in Summer. 
C. flagelliformis, Ag. Frequent. 
Fig.: Harvey I, 51. 
District: Port Erin; Port St. Mary; Castletown; Douglas Bay 
(Talbot). 
Zone: H.W.O.N.T. to M.T. zone. 
Occurrence: Annual, Summer. 
Reproduction: Unilocular sporangia in Summer and early Autumn. 
Notes: Found in pools generally bearing Dictyosiphon foeniculaceus 
as an epiphyte. Appears beginning of July and disappears 
at the end of November. 
Gen. Mesogloia, Ag. 
M. vermiculata, Le Jol. Frequent. (See note Io, p. 113.) 
Fig. : Harvey I, 53 [as M. vermicularis]. 
District: Port Erin; Douglas Bay (Brady, Talbot). 
Zone: L.W-.O.N.1f. to L.W.OS:2- 
Occurrence: Annual, Summer. 
Reproduction: Unilocular sporangia in Summer. 
Notes : Occurs in deep pools in sheltered positions. 
Gen. Castagnea, Derb. et Sol. 
C. virescens, Thur. Common. 
Fig.: Harvey I, 55 fas Mesogloia virescens].- 
District: Port Erin; Port St. Mary; Castletown; Douglas Bay 
(Brady, Talbot). 
Zone: M.T. zone pools. 
Occurrence: Annual, Summer. 
Reproduction: Unilocular sporangia in Summer, beginning at the end 
of May; plurilocular sporangia in September. 
a 
