Red algae families

The Corallinaceae are one of the two extant Coralline families of red algae; they are differentiated from the morphologically similar Sporolithaceae by their formation of grouped sporangial chambers, clustered into sori. The Corallinoideae is monophyletic; the other subfamilies form another monophyletic group.

The Gelidiaceae is a small family of red algae containing eight genera. Many species of this algae are used to make agar. thumb|left|Drying Gelidium amansii to make [[agar ]]

Bangiaceae is a family of red algae in the order Bangiales. It contains laver, used to make laverbread, and various species in the genus of Pyropia are used to make nori.

Gigartinaceae is a red algae family in the order Gigartinales.

Solieriaceae is a family of red algae in the order Gigartinales.

Cyanidiaceae is a family of red algae, one of two families in the Division Cyanidiophytina.

thumb|upright=0.4|Illustration of Chroo­thece richteriana Hansg. thumb|upright=0.4|Illustration of Zachariasia endo­phytica Lemm., syn. Chroo­thece endo­phytica Stylonemataceae is a family of red algae in the class Stylonematophyceae. It is the only family in the monotypic order Stylonematales.

Rhodomelaceae is estimated to be the largest red algae family, with about 125 genera and over 700 species.

Phyllophoraceae is a family of red algae in the order Gigartinales.

The Delesseriaceae is a family of about 100 genera of marine red alga.

Palmariaceae is a family of algae. It includes the edible seaweed dulse (Palmaria palmata).

Erythrotrichiaceae is a red algae family in the order Erythropeltidales.

Bonnemaisoniaceae is a family of red algae in the order Bonnemaisoniales.

Batrachospermaceae is a family of freshwater red algae (Rhodophyta), a group of reddish plants found in rivers and streams. These algae have a distinct life cycle called the "Lemanea-type," starting with small reproductive cells known as carpospores that grow into a form called chantransia. This leads to a sporophyte phase, during which a process called meiosis—where cells divide to create new reproductive cells—takes place in a specialized cell at the filament’s tip, known as the apical cell, responsible for growth. This division results in the gametophyte, the stage of the algae that produce

The Gracilariaceae is a small family of red algae, containing several genera of agarophytes. It has a cosmopolitan distribution, in which 24 species are found in China, six in Great Britain and Ireland, and some in Australia and Chile.

Hapalidiaceae is a family of red alga belonging to the order Corallinales.

The Sporolithaceae is the only known family of algae in the Sporolithales order.

Galaxauraceae is a family of red algae (Rhodophyta) in the order Nemaliales.

Callithamniaceae is a family of red algae (Rhodophyta) in the order Ceramiales. The family was first described by Friedrich Traugott Kützing in 1843.

REDIRECT Peyssonneliales

Kallymeniaceae is a red algae family in the order Gigartinales.

thumb|right|Wrangelia penicillata at 2m depth. thumb|Ptilota eatoni Dickie, now Plumariopsis eatonii (Dickie) De Toni 1 partial frond, 2 section of stem with young branch, 3 tip of full-grown branch, 4 branch tip with sphaerospores, 5 sphaerospores.

The Gelidiellaceae is a small family of red algae containing 5 genera of agarophytes.

Porphyridiophyceae is a class of red algae.

Rhizophyllidaceae is a family of red algae in the order Gigartinales.

Cruoriaceae is a family of crustose red algae – that is, a seaweed.

The Pterocladiaceae is a small family of red algae containing 2 genera of agarophytes.

Scinaiaceae is a family of red algae (Rhodophyta) in the order Nemaliales.

Dumontiaceae is a red alga family in the order Gigartinales.

Liagoraceae is a family of red algae (Rhodophyta) in the order Nemaliales. The type genus is Liagora .

Naccariaceae is a family of red algae in the order Bonnemaisoniales, with 3 monotypic genera that are found in both the Pacific and Atlantic Oceans.

Galdieriaceae is a family of red algae, one of two families in the order Cyanidiales.

Polyidaceae is a red algae family in the order Gigartinales.