A PhD student, Watanabe conducted the field survey of Pyropia (= Porphyra) species in Tanegashima Island which is known as one of the northernmost island in the Ryukyu Archipelago, Japan. Indeed, four species of Pyropia including an endemic species Pyropia tanegashimensis can be found in this island.
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| 種子島の海岸 |
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| Pyropia suborbiculata マルバアマノリ |