524 
Notes. 
CHLOROPHYCEAE. 
PROTOCOCCACEAE : — The sexual mode of reproduction has 
been observed only in Chlorochytrium. 
Characieae. Sexual reproduction unknown. 
blastosporaceae. Sexual reproduction unknown. 
ULVACEAE. Reproduction, both asexual and sexual, unknown 
in Capsosiphon, and imperfectly known in the species of the genera 
Monostroma and Uiva. 
chaetophoraceae. Sexual reproduction unknown in Achro- 
chaete, Bolbocoleon, Entoderma, and Epicladia : no mode of 
reproductiomknown in Ochloehaete. 
CLADOPHOEACEAE. Asexual zoospores unknown in Bhizo- 
clonium and Chaetomorpha. Sexual reproduction known only in 
one species of Cladophora (C. sericea , Kiitz.). 
GOMONTIACEAE. Sexual reproduction unknown. 
DERBESIACEAE. Sexual reproduction unknown. 
codiaceae. Asexual reproduction unknown, conjugation of 
gametes (?) not observed. 
PHAEOPHYCEAE. 
Plurilocular sporangia are unknown in the genera Desmarestia, 
Dictyosiphon, Stietyosiphon, S triaria, Battersia, Stypocaulon, 
Petrospongium, Chorda, Laminaria, Saecorhiza, Alaria, Spo- 
rochnus, Carpomitra, and Aglaozonia, and in the following species ; 
Litosiphon Laminariae. 
Elachista Areschougii. 
„ flaccida. 
Sphacelaria radicans. 
„ olivacea. 
„ tribuloides. 
,, plumula. 
„ plumigera. 
Ralfsia spongiocarpa. 
Chordaria flagelliformis. 
Leathesia crispa. 
Unilocular sporangia are unknown in the genera Sorocarpus, 
Halothrix, Arthrocladia 1 , Phyllitis, and Scytosiphon : and in 
the following species ; — 
1 See, however, Johnson, Ann. Bot, Vol V, p. 140. 
