§7 
the British Marine Algae . 
RHODOPHYCEAE ( continued ) ). 
Porphyra leucosticta, Thur. 1-9 ! 
P. linearis, Grev. (P. vulgaris , Phyc. Brit, pro parte). 
1-9 ! 
P. laciniata, C. Ag. 1-14. 
f. typica. 
f. umbilicalis. 
P. amethystea, Kiitz. 4 ! 
P. abyssicola, Kjellm. 1 ! 
Diploderma Kjellm. 
D. miniatum, Kjellm. 1 ! 4 ! 13. 
D. amplissimum, Kjellm. 13 ! 
<*■ 
Cohort II.— NEMALIONINAE. 
Order. — helminthocladiaceae. 
Tribe I.— Chantransieae. 
Chantransia Fries. 
Ch. Daviesii, Thur. ( Callithamnion Daviesii , Phyc. Brit.). 
1-14. 
Ch. corymbifera, Thur. 9 ! 
Ch. virgatula, Thur. ( Callithamnion virgatulum , Phyc. 
Brit.). 1-14. 
Ch. secundata, Thur. 1-9 ! 
Ch. luxurians, Thur. 6. 9 ! 
Tribe II. — Nemalieae. 
Nemali on Targioni-Tozzetti. 
N. lubricum, Duby. 619! 
N. multifidum, J. Ag. 1. 2. 5. 6 ! 9 ! 10. 1 1 ! 
Helminthoeladia J. Ag. 
H. purpurea, J. Ag. ( Nemalion purpureum , Phyc. Brit.). 
9 ! 11. 
H. Hudsoni, J. Ag. 9 ! 
Helminthora J. Ag. 
H. divaricata, J. Ag. {Dudresnaya divaricata, Phyc. Brit.). 
1. 9! 13. 
