Algae 
annis 1852 et 1853 collectae. 
Auctore 
Sonder. 
I. Zoospermeae. 
Ulvaceae, 
1. Ulva Lactuca L. 
Port Phillip, Wilson’s promentory. 
2. Phycoseris Ulva Sond. Pi. Preiss. Il. p. 153. 
Port Phillip. Nov. 1852. . 
3. Enteromerphn compressa Grev. Ulva L. 
Port Phillip. Nov. 1852. 
4. Enteromorpba elathrata Lk. Ulva Ag. Spec. 
Wilson’s prowontory. Mai 1853. 
5. Porphyra vulgaris Ag, 
Port Phillip. Sept, 185%. 
GConferveue. 
6. Conferva (Chaetomorpha) Darwinii Kueiz. Spec. 
€. clavata var. Darwinii Hook. Crypt, antaret, 
Wilson’s promontory. Mai 1853. 
Siphoneae. 
7. Codium tomentosum Ag. 
Port. Phillip. Sept., Nov. 1852. 
8. Codium Bursa var. australis Sond. Alg. Müllerian. 
in Linn. XXV. 6. p. 660, 
Wilson’s promontory. 
