Key to Dryopteridaceae

View taxon page for Dryopteridaceae

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Indusium round-reniform, ± centrally attached at a 

sinus 

Usually pertaining to margins of leaves, sepals, petals, or other parts, an indentation between adjacent lobes or teeth

..... DRYOPTERIS

1' Indusium 

peltate 

With the stalk attached toward the middle, not at a margin, of a flat structure such as an indusium, scale, or leaf.

, centrally attached, without a sinus

2. Veins regularly netted; 

leaf 

Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets).

1-pinnate, teeth 0 or < 10 mm, without bristle-like tips ..... CYRTOMIUM

2' Veins generally free, rarely ± joined; leaf 1–3-pinnate, teeth, generally including bristle-like tips, < 4 mm ..... POLYSTICHUM

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