69 
Gen. Hecatonema, Sauv. 
H. maculans, Sauv. Occasional. 
mie): Plate X, 17. 
District: Port Erin; Port St. Mary. 
Zone: Same as host. 
Occurrence: Sporadic. 
Reproduction: Plurilocular sporangia in early Autumn. 
Notes: Usually found epiphytic on Covallina officinalis. 
Gen. Chilionema, Sauv. 
C. Nathaliae, Sauv. 
Fig.: Harvey I, 67 [as Myrionema Leclancherii]. 
District : Douglas Bay; Peel. 
Notes: Recorded by Harvey-Gibson and Brady. No data available. 
Gen. Ascocyclus, Magn. (See note 9, p. 112.) 
A. orbicularis, Magn. Not common. 
Fig.: Borgesen (1926), Phaeophyceae, p. 63. 
District: Port St. Mary ; Douglas Bay (Talbot). 
Notes: On the leaves of Zostera. 
A. Saccharinae, Cotton. Not common. 
mice sCoOLton,<1912,-Ph XS. “Plate Il): 26, 31. 
District : Port Erin. 
Zone: Same as host. 
Occurrence : Sporadic. 
Reproduction: Plurilocular sporangia in Winter. 
Notes: Found on Laminaria saccharina. 
Gen. Ralfsia, Berk. 
R. verrucosa, Aresch. Frequent. 
Fig.: Harvey I, 58 [as R. deusta]. 
District: Port Erin; Port St. Mary, 
Zone: iH.W.O.N.T. 
Occurrence: Perennial. 
Reproduction : Unilocular and plurilocular sporangia in Winter. 
Notes: Often found covering limpet shells in any zone, but forming 
conspicuous confluent discs in rock pools near H.W.O.N.T. 
Gen. Lithoderma, Aresch. 
L. fatiscens, Aresch. Rare. 
Pe. = Oltmanns: Tl; p. 15. 
District : Port St. Mary. 
Zone: MT. to L.W.O.N.T. 
Occurrence : Sporadic. 
Reproduction: Unilocular sporangia in February. 
Notes : Scraped from the surface of limpet shells. 
