66 
E. scutulaia, Duby. Frequent. 
de; 
S: 
S- 
5. 
Fig.: Harvey I, 63. 
District: Port Erin; PortSt. Mary; Douglas Bay (Talbot). 
Zone: Same as host. 
Occurence: Annual, Summer. 
Reproduction: Unilocular sporangia in Summer. 
Notes: Occurs epiphytically on the Himanthalia thongs in Spring, 
Summer and early Autumn. 
Gen. Leptonema, Reinke. 
fasciculatum, Rke, var. majus, Rke. Very rare. (See note 5, p. 110.) 
Migs; Plate Xi, 35: 36,30: 
District : Port Erin. 
Lone: Wid zone: 
Occurrence : Sporadic. 
Reproduction: Plurilocular sporangia in February and March. 
Unilocular sporangia developed in April. 
Notes: Found growing epiphytically on Cladostepbhus spongiosus and 
on the byssi of Mytilus. 
Fam. SPHACELARIACEAE. 
Gen. Sphacelaria, Lyngb. (See note 6, p. 111). 
vadicans, Harv. Not common. 
Higs: farvey 1,«78. 
District: Port Erin; Port St. Mary; Pooyllvaaish. 
Zone: M.T. zone. 
Occurrence: Perennial. 
Reproduction : Unilocular sporangia in Spring; no record for pluri- — 
locular sporangia. 
civvhosa, Ag., var. pennata, Hauck. Frequent. 
Fig.: Harvey I, 76. 
District: Port Erin; Port St. Mary; Douglas Bay (Talbot); Peel. 
Zone: M.T. zone and below in pools. 
Occurrence: Perennial. 
Reproduction: Unilocular sporangia in Winter. Frequently bears 
propagules. 
Notes: This species may be found as an epiphyte on Desmarestia 
aculeata. 
civvhosa, Ag., var. fusca, Holmet Batt. Rare. (See note 7, p. 111.) 
Fig.: Harvey I, 77 [as S. fusca]. 
District: Port Erin; Port St. Mary; Douglas Bay (Brady). 
Zone: M.T. zone in pools. 
Occurrence : Perennial. 
Reproduction: Unilocular sporangia in winter.. Frequently bears 
propagules. 
