Hypoglossum hypoglossoides
# Hypoglossum hypoglossoides

Hypoglossum hypoglossoides, known as under tongue weed, is a small red marine alga in the family Delesseriaceae.

## Description

Hypoglossum hypoglossoides is a small red alga growing as monostromatic blades in tufts to a length of 30 cm and 0.8 cm wide. The lateral branches grow as blades which, like the primary blade, has a midrib. All the blades have a lanceolate or acute apices. All the blades lack lateral veins.

## Reproduction

The plants are dioecious. Spermatangial sori are formed on the blades on either side of the midrib. Cystocarps develop singly on the blades.

## Habitat

Found in the littoral and sublittoral on rock or epiphytically on other large algae.

## Distribution

Found on the shores of Ireland, Great Britain, Isle of Man and the Channel Islands. Further south in Spain and the Mediterranean, as well as North Carolina to Brazil.

