Cyathea nigricans

cyathea_nigricans_pinnae.jpg (35844 bytes) cyathea_nigricans_stipedetail.jpg (21154 bytes)

Family: Cyathaceae

English name: Tree Fern

Pohnpeian name: Katar

Chuukese name: Aamaaree

Kosraen name: Foa

Yapese name: None

Location collected: Beside the road up to the mountain. Paies forest area.

Date collected: 24 November1998

Collected by: Jenson Santos

Vegetative characteristics:

Habit: Terrestrial; usually found in shady, damp areas such as in some forest areas in Pohnpei.

Leaf shape and morphology: Large clustered fronds with 1-2m petioles are arranged at furry, terminal end of stem. Blackish and hairy (pubescent) midribs are about 3-5m long. Fertile fronds are divided twice.

Stem type: Rhizome forming a thick, dark fibrous trunk. Durable soft inner core; can remain in contact with soil for a long period of time.

Spore Description: Brown spores are contained in numberous round sporangia on the underside of frond. They are arranged oppositely on each sub-leaflets.

Uses: Thick fibrous stems are used for house posts, fense posts, support for commercial black pepper vines, and many other things. Soft inner core is used as treatments for cuts and wounds. Leaves and leaf buds are also sources of local medicine.

** The growing need for commercial pepper has led to the decrease in Cyathea nigricans especially in the lowland forest areas. If this problem continues, this plant species will eventually become extinct in Pohnpei.

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