Grimmiaceae

This family grows on exposed rock, especially in alpine areas.

Racomitrium1

Racomitrium pruinosum

Very abundant on Mt Ruapehu.

The colour of this moss can vary from almost white when dry to pale green to gree-brown when moistened.

The leaves have very long fine hair points at the tips and this gives them the white colour when dry.

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Racomitriumpruinosum2436

This image shows the teeth along the leaf margin. Also visible are the papillose cells.

Racomitriumpruinosum2443

This shows the capsules of R. pruinosum.

Apparently they are quite rare!

Note the twisted seta. The peristome teeth are divided into two fine threads.

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