158 PEBLIMINxlRY RKPORT UPON THE 



Order X. DelesseriacesB. 



Delesseria sanguinea — \_Wormskioldia sanguinea] — (Blood-red Delesseria). In 

 pools, sea, and on the sides of rocks. Abundant. Perennial. Spring and 

 summer; fruiting in winter on old stems. 



B. sinuosa (Sinuous Delesseria). On larger algse, in deep water. Biennial. 

 Autumn and winter. 



D. alata (Winged Delesseria). On rocks. Bovisand; Redding Point. Biennial. 

 Summer. 



D. hypoglossum (Proliferous Delesseria). On rocks and algae, and in deep water. 

 Annual. Spring and summer. 



D. ruscifolia (Obtuse-leaved Delesseria). Sides of rocks, and on stones. Annual. 

 Summer and autumn. 



Nitophyllum punctatum (Dotted Nitophyllum). In deep water. Mount Edgcumbe ; 

 Firestone Bay. Annual. Summer. 



N. Hillice (Miss Hill's Nitophyllum). In deep water. Mount Edgcumbe ; Mount 

 Batten. Annual. Summer. 



N. Bonnemaisoni (Bonnemaison's Nitophyllum). Mount Edgcumbe, and on the 

 stems of Laminaria. Annual. Summer. 



N. Gme^mi (Gmelin's Nitophyllum). Mount Edgcumbe; Anthony-passage; Fire- 

 stone Bay. Annual. Summer. 



N. laceratum (Torn Nitophyllum). Sides of rocks, deep water. Common. Annual- 

 Summer. 



N. versicolor (Changeable Nitophyllum). Bovisand, and deep water. Annual. 

 Summer. 



Plocamium coccineum (Scarlet Plocamium). On rocks and algcc. Common. 

 Perennial. Summer. 



Order XI. Rhodymeniacess. 



Stenogramme interrupta (Interrupted Stenogramme). Dredged in summer, and 

 washed on shore at different seasons of the year. Sound. Perennial. Rare.* 

 Taken by J. Gatcombe. 



* "This very interesting plant, by far the most important addition lately made 

 to the British Marine Flora, was discovered on the 21st October, 1846, by Dr. John 

 Cocks, of Plymouth, among rejectamenta on the shore at Bovisand, near Plymouth. 

 A few days subsequently it was met with in a neighbouring station by the Rev. 

 W. S. Hore, who at the same time gathered the equally rare and curious Carpomitra 

 Cabrera ; and to the untiring perseverance of both these gentlemen, who, day by 

 day, fiuriiig the inclement month of November — in all weathers — visited the shore, 

 and preserved every scrap of these plants which the waves threw up, we are indebted 

 for all the British specimens which have yet been taken of the Stenogramme, and 

 for all, except Miss Ball's original one, of the Carpomitre." — Harvey's Phycologia 

 Britannica, 1851. 



Rhodymenia bifida — [^Rhodophyllis bifida'] — (Cloven Rhodymenia). On sides of 

 rocks and stones, in deep water. Annual. Summer and autumn. 



R. bifida var. cristata — \Euthora cristata'] — On sides of rocks and stones, in 

 deep water. Annual. Summer and autumn. 



R. laciniata [^Callophyllis laciniata'] — (Jagged Rhodymenia). On rocks and stones 

 in the sea, and on Laminaria. Spring and summer. 



R. ciliata \_Calliblepharis ciliata'] — (Ciliated Rhodymenia). On rocks at low-water 

 mark, and in deep water. Annual. Summer and winter. 



R. palmetta (Little-palm Rhodymenia). On rocks at low-water mark, also in 

 pools, and on stems of Laminaria. Annual. Summer and autumn. 



R. palmata (Dulse or Dillisk Rhodymenia). On rocks and Laminaria. Abundant. 

 Perennial. 



R.jubata — \_Calliblepharis jubata'\—{C'\rr\\o%e. Rhodymenia). In pools, below half- 

 tide. General. Annual. Summer. 



