448 
Chondria (C. Agardh) Harvey 1853 (— Chondriopsis J. Agar äh 1863; 
incl. Carpocaulon Kützing 1843). 
Ch. tenuissima (Goodenough et Woodward ) C. Agardh. 
* Cladurus Falkenberg (nov. gen.). 
CI. elatus ( Sonder) Falkenberg'). 
*Digenea C. Agardh 1823. 
D. simplex ( Wulfen) C. Agardh. 
Bryothamnion Kützing 1843 (incl. Physcophora Kützing 1843). 
Br. Seaforthii ( Turner) Kützing. 
*Alsidium C. Agardh 1827. 
A. corallinuin C. Agardh. 
Polysiphonia Greville 1824 (= Hutchinsia 0. Agardh 1817; =Gram- 
mita Bonnemaison 1822; = Polyostea Ruprecht 1850; incl. 
Vertebrata Gray 1821; incl. Brongniartella Bory 1822; incl. 
Dicarpella Bory 1823; incl. Grateloupella Bory 1823; incl. 
Corradoria Martins 1833; incl. Grammitella Grouan 1848; 
? incl. *Pachychaeta Kützing 1862. 
P. violacea (Roth) Greville. 
Pterosiphonia Falkenberg (nov. gen.). 
Pt. cloiophylla (C. Agardh) Falkenberg 1 2 ). 
*Dictyomenia Greville 1830 (= Dictymenia Harvey 1847). 
D. tridens (Turner) Greville. 
Pollexfenieae. 
Pollexfenia Harvey 1844 (incl. *Jeannerettia Hooker et Harvey 1847; 
incl. Melanoseris Zanardini 1874). 
P. pediceilata Harvey. 
Placophora J. Agardh 1863 (= Rhodopeltis Askenasy 1872). 
P. B i n d e r i J. Agardh. 
Dasyeae. 
? * Endosiphonia Zanardini 1878. 
E. spinuligera Zanardini. 
*Lophothalia (Harvey 1847) Kützing 1849. 
L. verticillata (Harvey) Kützing. 
?**Merenia Reinsch 1888. 
M. microcladioides Reinsch. 
Dasya C. Agardh 1824 (= Grateloupia Bonnemaison 1822 (= Gail- 
lona Bonnemaison 1828); = Rhodonema Martens 1824; incl. 
1) = Rhodomela elata Sonder (Linnaea XXV p. 699). 
2) = Polysiphonia cloiophylla (C. Agardh) J.dgardh Sp. G. 0. II. 3. 
p. 934. 
