傘海草屬
傘海草屬（學名：_Acetabularia_）是綠藻的一个屬，閣稱「人魚的酒杯」( mermaid's wine glass )。傘藻屬的所有種攏是屬於單細胞生物，外表呈現傘形。細長的傘柱長空吱五 ∼ 十公分，頂懸有一輪分枝，形成傘崁。傘藻屬的傘柱基部有一个大核，當伊熟的時陣會分裂，胞子會綴細胞質流入孢仔囊抑是傘的裂片中。因為傘藻屬容易嫁接，所以伊定定予人用佇基因研究。
下屬物種
本屬包括以下的物種：
- _ Acetabularia acetabulum _ ( Linnaeus ) Silva
- _ Acetabularia acetabulum _ Linnaeus , 一千七仔五十八
- 傘藻 _ Acetabularia caliculus _ J . V . Lamour .
- 棒形傘藻 _ Acetabularia clavata _ Yamada
- 幼圓齒傘藻 _ Acetabularia crenulata _ J . V . Lamour .
- 齒狀傘藻 _ Acetabularia dentata _ Solms-Laubach , 一千八百九十五
- 尖頂傘藻 _ Acetabularia exigua _ Solms-laubach
- 法洛傘藻 _ Acetabularia farlowii _ Solms-Lamxach
- 極大傘藻 _ Acetabularia gigas _ Solm .
- _ Acetabularia integra _ J . V . Lamouroux
- _ Acetabularia kilneri _ J . Ag .
- 大傘藻 _ Acetabularia major _ G . Martens , 一千八百六十六
- 地中海傘海傘 _ Acetabularia mediterranea _ J . V . Lamouroux
- _ Acetabularia moebii _
- 足濟孢傘海草 _ Acetabularia myriospora _ Joly et Cordeiro-Marino
- 小傘藻 _ Acetabularia parvula _ Solms–Laubach
- _ Acetabularia penicillus _ ( R . Br . ) J . Ag .
- _ Acetabularia peniculus _ ( R . Brown ex Turner ) Solms-Laubach , 一千八百九十五
- _ Acetabularia polyphysoides _
- 微形傘藻 _ Acetabularia pusilla _（Howe）Collins
- 琉球傘藻 _ Acetabularia ryukyuensis _ Okamura & Yamada ex Okamura
- _ Acetabularia schenckii _ K . Möbius
- _ Acetabularia shenckii _ Mobius
- 梨形傘藻 _ Acetabularia tsengiana _ Egerod
- 未氏傘藻 _ Acetabularia velasquezii _ Trono , Santiago et Ganzon-Fortes