Genus Hypnea

Habit. Inset (left): Habit; (right): Fragment with short branchlets. Hainan Island (China). April 2014.

In habitat during low tide (Amakusa Island, Japan), April 2013. Inset: Habit.

1. Habit (fragment). 2. Upper subtidal, Song Lo Bay (Nha Тrang City, Vietnam). April 2007.

1. Branches with spine-like branchlets. 2. Lateral cystocarps (immature). 3. Rhizoidal tufts issuing from tips. 4. Lobster farm, on net (Nha Trang Bay, Vietnam), April 2007.

1. Fragment showing branching pattern. 2. In habitat, lobster farm (rope overgrowing with Hypnea valentiae), Nha Trang Bay, Vietnam, April 2007. Inset: Fragment with cystocarps.