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Adi Khen @adlysia.bsky.social · 18/09/2026

“Spiny red weed,” or Hypnea valentiae, is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 11/09/2026

Lacy sea lettuce (or Ulva australis), named after its many holes, is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 04/09/2026

Chondracanthus canaliculatus, or “lawn algae,” is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 02/09/2026

Collage of some recent seaweed pressings #SciArt

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Adi Khen @adlysia.bsky.social · 28/08/2026

Sphacelaria californica, or “rigid turf weed,” is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 27/08/2026

Desmarestia dudresnayi (acidweed) released sulfuric acid and stained the page when pressed! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 21/08/2026

“Seagrass laver,” or Smithora naiadum, is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 14/08/2026

“Swiss cheese algae” (or Hydroclathrus clathratus) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 07/08/2026

Spyridia filamentosa, or “hairy basket weed,” is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 02/08/2026

Digital seaweed art: a wreath, made from historical pressings by Mary Snyder from Florida (ca. 1895) #PhycologyFriday #SciArt

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Adi Khen @adlysia.bsky.social · 31/07/2026

The non-native Dictyota cyanoloma (or “blue fringe weed,” named after its iridescent blue margins) is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 24/07/2026

Pyropia perforata, or nori (also known as “purple laver”) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 17/07/2026

Chaetomorpha aerea, or “rough green thread algae,” is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 11/07/2026

Scanned seaweed pressings, colorful and charismatic #SciArt #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 10/07/2026

“Iridescent cartilage weed” (Chondria acrorhizophora) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 03/07/2026

Sausage weed (Scytosiphon lomentaria) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 27/06/2026

“Sea belly,” or Neogastroclonium subarticulatum (named after its swollen tips), is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 23/06/2026

Historical pressings of Florida seaweeds from ~1895 by Mrs. Mary Snyder #SciArt

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Adi Khen @adlysia.bsky.social · 19/06/2026

Ulva clathrata, or “spiky tendrils,” is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 13/06/2026

Digital seaweed bouquet with my latest pressings #SciArt #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 12/06/2026

Pepper dulse, or Osmundea spectabilis (also called “truffle of the sea” for its distinct flavor) is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 05/06/2026

Undaria pinnatifida (“wakame”) is our seaweed of the week! Non-native to California, but you might see it here growing on our docks… and in your seaweed salad or miso soup #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 29/05/2026

Agar weed (Gelidium robustum) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 28/05/2026

Before and after pressing a juvenile elk kelp (Pelagophycus porra) #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 22/05/2026

Colpomenia sinuosa, commonly known as oyster thief (or sometimes “elephant’s snot”!), is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 15/05/2026

“Grape tongue” (Cryptopleura ruprechtiana) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 08/05/2026

Dictyopteris undulata, or “netted wing weed,” is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 01/05/2026

Bryopsis corticulans (“green hair algae”) is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 24/04/2026

Callophyllis flabellulata, the “red sea fan” (no relation to the soft coral; just resembles one) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 22/04/2026

Pressings of brown Southern California seaweeds #SciArt

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Adi Khen @adlysia.bsky.social · 17/04/2026

“Acid weed,” or Desmarestia herbacea, is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 10/04/2026

Coral weed (Corallina pinnatifolia) is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 03/04/2026

Neoagarum fimbriatum— or “colander kelp,” named after its many holes, is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 27/03/2026

Red hair algae, or Centroceras clavulatum, is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 20/03/2026

Sargassum horneri, or “devil weed,” is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 13/03/2026

Ulva expansa, or “large sea lettuce,” is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 06/03/2026

Asparagopsis taxiformis (the red sea plume, or “limu kohu” in Hawaii) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 27/02/2026

Laminaria farlowii, or “oarweed,” is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 20/02/2026

Leptocladia binghamiae (which has no common name, but “tattered weed” seemed fitting) is our seaweed of the week! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 17/02/2026

Pressings of brown seaweeds from San Diego #SciArt

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Adi Khen @adlysia.bsky.social · 15/02/2026

A bouquet of red seaweeds for Valentine’s Day #SciArt #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 13/02/2026

Pterygophora californica, or “stalked kelp,” is our seaweed of the week. Did you know it can live for up to 20 years?! #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 06/02/2026

The calcified “slender coral weed,” Jania crassa, is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 30/01/2026

Petalonia binghamiae (“sea petals”) is our seaweed of the week #PhycologyFriday

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Adi Khen @adlysia.bsky.social · 29/01/2026

Red, green, and brown seaweeds (can you guess which?) #SciArt #PhycologyFriday

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