Alga Gallery

Rock pool, viewed from below with Neptunes necklace (Hormosira banksii)

Rock pool, viewed from below with Neptune's necklace (Hormosira banksii), The pool also contains Sea lettuce (Ulva australis), an edible green alga only two cells thick. Some zebra shells (Austrocochlea constricta) are also evident. Yamba, New South Wales, Australia

© Mark Spencer/AUSCAPE All rights reserved

Alga, Algae, Aquatic, Australian, Bead, Brown Algae, Bubbleweed, Chromalveolata, Clear Water, From Below, Fucales, Heterokontophyta, Hormosira, Hormosiraceae, Littoral Zone, Low Angle View, Marine, Marine Life, Neptune?s Pearls, Neptunes Pearls, New Zealand, Ocean, Phaeophyceae, Plant, Rim, Rock Pool, Rockpool, Sea Grapes, Sea Life, Seaweed, Underwater, Vegetation

Ice cave

Ice cave under a residual snowdrift on Mount Twynam in late summer, its translucent ceiling sculpted by wind eddies and dust accumulating along ridge lines. Reddish stains in the snow are largely due to photosynthetic bacteria (Chlamydomonas nivalis), responsible for wine snow with its deep red in high concentrations. Its photosynthetic constituent, chlorophyll, is masked by a sunscreen of carotenoid pigments. Kosciuszko National Park, New South Wales, Australia

© Reg Morrison/AUSCAPE All rights reserved

A stonewort (Nitella sp.)

A stonewort (Nitella sp.), female device, the archegonium, and male organ, antheridium, magnified X 40

Alga, Algae, Antheridia, Archegonia, Cells, Characeae, Freshwater, Green, Macrophotography, Magnification, Microscopy, Multicellular, Multinucleated, Photomicrography, Reproduction, Reproductive