P L A T E L X X .
Fig. 1. Microcoleus repens. — Fig. 2. Microcoleus gracilis.
— Fig. 3. Microcoleus anguiformis. — Fig. 4. Oscillatoria
cinerea. — Fig. 5. Oscillatoria pulchella.
P L A T E L X X I .
Fig. 1. Oscillatoria mucosa. — Fig. 2. Oscillatoria limosa.—
Fig. 3. Oscillatoria nigra.— Yigs. 4. 6. a n d 7. Oscillatoria
contexta. — Fig. 8. Oscillatoria Carmichaeli. — Fig. 5.
Oscillatoria spadicea. — F ig. 9. Oscillatoria virescens.-^
Fig 10. Oscillatoria decorticans /8 corticola.
P L A T E L X X I I .
Fig. 1. Oscillatoria tenuis. — Fig. 2. Oscillatoria arugescens.
Fig. 3. Oscillatoria thermalis. — Fig. 4. Oscillatoria tere-
briformis. — Fig. 5. Oscillatoria spadicea. — Fig. 6. Oscillatoria
tu r f osa. — Fig. 7. Oscillatoria autumnalis. — Fig. 8.
Oscillatoria splendida. — Fig. 9. Oscillatoria subfusca. —
Fig. 10. Oscillatoria violacea.— Fig. 11. Oscillatoria ru-
pestris. — Fig. 12. Oscillatoria muscorum. — Fig. 13. Oscillatoria
Dickiei.— Fig. 14. Lyngbya copulata.
P L A T E L X X I I I .
Fig. 1. Nostoc macrosporum.— Fig. 2. Filaments of the same
dividing themselves into separate portions, each of which
forms a distinct individual.
P L A T E L X X IV .
Fig. 1. Nostoc caeruleum.—Fig. 2. Nostoc commune.— Fig. 3.
Nostoc ? variegatum. — Fig. 4. Nostoc muscorum.
Fiff.
P L A T E L X X V .
1. Trichormus incurvus ? — Fig. 2. Anabaina flosaqucB.
— Fig. 3. Anabaina impalpebralis ?— Fig. 4. Anabaina
licheniformis ? — Fig. 5. Spirillum Jenneri. — Fig. 6.
Spirillumrupestre. —Fig. 7. Spirillum Thompsoni.— Y \g .^ .
Spirillum minutissimum. — F ig. 9. Anabaina constricta. —
Fig. 10. Nostoc cceruleum. — Fig. 11. Monormia intricata.
P L A T E L X X V I .
Fig. 1. Nostoc verrucosum. — Fig. 2. Nostoc foliaceum. —
Figs. 3 and 4. Nostoc pruiniforme. — Fig. 5. Nostoc sphce-
ricum. — F ig. 6. Aphanizomenon incurvum. ■—■ Fig. 7. Coc-
cochloris protuberans. ■— Fig. 8. Hcematococcus ndcrosporus.
— Fig. 9. Hcematococcus minutissimus, in p a rt.— Fig. 10,
Heematococcus arenarius. — Fig. 11. Nostoc cceruleum,
natural size. Fig. 12. Nostoc verrucosum? in young condition.
P L A T E L X X V I I .
Fig. 1. Ulva calophylla. — Fig. 2. ip) Enteromorpha intestinalis.
(b) Transverse section of one of the filaments. —
Fig. 3. Hydrums Ducluzelii. — Fig. 4. Ulva translucens.
— Fig. 5. Botrydium yranulatum. — Fig. 6. Coleochcete
sentala.
P L A T E L X X V I I I .
Fig. 1. (a) Coccochloris Mooreana of natural size, (b) P ortion
of the same magnified. — Fig. 2. (a) (b) Coccochloris
hyalina.—Fig. 3. (a) (b) Coccochloris muscorum.—Fig. 4. (a)
(b) Coccochloris depressa. — Fig. 5. (a) (b) Coccochloris
hyalina?—Fig. 6. (a )(b ) Coccochloris rivularis.—Fig. 7. (a)
Coccochloris Grevillei. (b) Variety of the same. Fig. 8.
Variety ß magnified. — Fig. 8. (a) Sorospora virescens.—
Fig, 9. Hcematococcus theriacus. — Fig. 10. Tetraspora
lubrica. — Fig. 11. Tetraspora flava. — Fig. 12. Ulva
crispa.— Fig. 13; Ulva bullosa.
P L A T E L X X IX .
Fig. 1. Sorospora montana. — F ig. 2. Hcematococcus sanguineus.
— Fig. 3. Sorospora Ralfsii.
VOL. II. B