Propagation
Place spores on sterilised sphagnum or peat moss then cover with glass, keep moist for 4 to 6 weeks maintaining a temperature of 16º C (61º F), with indirect light until the prothallus appears. 

Divide rhizomes in to lengths during spring and seal wounds to prevent fungal infection. Plant upwards in well drained moist soil, apply bottom heat. 
Cleanliness is essential during the process.

Botanic information
Leaf: The very variable dark green thin textured ovate to broad-ovate fronds are up to 700 mm (28 in) long with a stipe that is 60 mm (2⅜ in) to 300 mm (1 ft) long and is normally winged at the base. The fronds are normally deeply pinnatifid with lateral segments from 30 mm (1⅛ in) to 240 mm (9½) long by 50 mm (2 in) wide with an acuminate apex or they are simple with entire to undulating margins.

Note:
The identifying features of the fronds are their thin texture and conspicuous venation.

Flower: The sterile and fertile fronds are similar and the elongated sori appears in thin bands across the underside in a long zigzag line from the mid-rib to almost the margins. The spores are produced sporadically throughout the year.

Fruit: The spores are produced in the sporangium during the sporophyte stage of the fern life cycle in an elongated zigzag line from the mid-rib to the margins on the back of the fertile frond. The spores are very small (like fine dust) and are released from the sori when mature and dispersed by wind or water.

General cultural requirements for ferns
Temperature
The ideal temperature required for ferns ranges from 15.5º to 22º C (60º to 70ºF); above and below these temperatures the ferns tend to suffer.

Light
Naturally a fern receive bright dappled light and for successful growth around a home bright indirect light is preferred. Ferns do poorly if grown in the shade.

Water
Ferns require constantly moist, well drained soils but not wet or waterlogged as this promotes rot. Ferns like the water to pass by the roots regularly.

Humidity
Ferns need a humid environment and do poorly in dry air. Humidity may be maintained for potted plants by regular misting of the fronds or by placing the container above a saucer filled with water. In the outdoors maintain moist soils or in hot weather outside spray the area with a garden hose for a short period regularly.

Re-potting
Re-pot ferns when the roots have filled the container, preferable during spring and use a well drained loam based soil mix with added leaf mould. When planting, be careful not to bury the crown of the plant.
When fertilising, ferns prefer a little and regular liquid fertiliser during the growing period and this will improve pale fronds and weak growth.

Soil
Generally ferns prefer a heaver well drained soil type with ample organic matter tending acidic. Sandy soil types require regular mulching and heavy clay soils require the addition of gypsum and organic matter in conduction with cultivation to make it more friable. They will tolerate most soil types including granite or basalt based and some species are found in limestone base soils. All require organic material and moisture.