Cystopteris fragilis

Common name

Brittle Bladder fern

Cystopteris fragilis

© Natural History Museum

Latin names

Class

Pteridopsida

Order

Polypodiales

Family

Athyriaceae

Genus

Cystopteris

Species

fragilis

Alternative Family name

Cystopteridaceae

Geographic details

Habitat

moist shady crevices

Soil type

tolerant

Distribution

Throughout British Isles, rare SE

Native

Yes

General

Plant height

medium

Branched

No

Plant colour

mid-green

Habit

lvs open cluster

Conservation status

not threatened

Wikimedia Url

https://species.wikimedia.org/wiki/Cystopteris_fragilis

Leaf details

Separate fertile leaves

No

Leaf shape

elliptic-lanceolate

Pinnae

2-pinnate

Wintergreen

No

Spore details

Spore description

spinulose

Homospore

Yes

Rhizome details

Rhizome description

short branching

Rhizome scales

triangular-lanceolate

Rhizome position

creeping

Sori details

Sori shape

ovoid

Sori place

on lateral veins closer to midrib

Indusium details

Indusium present

Yes

Indusium shape

ovoid

Indusium description

acute or lacerate at apex