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Microsorum punctatum X grossum

Strap-leaf Fern

Multimedia & Additional Resources

Type	Description	Download
Image:	Underside of frond showing sori	55KB

General Information

COMMON NAMES: Strap-leaf Fern

GLOBAL DISTRIBUTION: NATIVE Tahiti

COOK ISLANDS STATUS: Introduced - Recent, Not naturalised; Land, gardens

SIGNIFICANCE LIST: Ornamental fern

KEY FEATURES: An erect, single-bladed fern to 60cm. BLADE simple and straplike (sometimes 2-3 lobed), with scattered sori on underside.

Enlarged Image of 'Microsorum punctatum X grossum'

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea: Present
RR	MG	AT	MK	MT	AK	PL	TK	MN
	+++	+	+L			+	-	-

Northern Group: Present?
TN	MH	RK	PK	NS	SW
-	-	-	-	-	-

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Microsorum punctatum X grossum
SYNONYMS: Microsorium punctatum 'Grandiceps'; Polypodium punctatum; Microsorium polycarpon

TAXONOMY: PLANTAE; PTERIDOPHYTA (=Pterophyta); Polypodiales; POLYPODIACEAE

More Information

GENERAL NOTE: This common hydrid fern probably developed in Tahiti where both the parents are present. In the Cook Islands one parent is native (Phymatosorus grossus), and the other Microsorum punctatum is introduced.

Vouchers & References

Vouchers:
None Recorded.

References:
None recorded.

Data Update History (information):
zTXmx, zB02, zM04b, zD02

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
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