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Porina cestrensis aff.

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General Information

GLOBAL DISTRIBUTION: NATIVE e.America; Marianas; Cooks

COOK ISLANDS STATUS: Native; Land, inland low valley slopes, c.80m; Epiphytic on bark.

KEY FEATURES: Small scattered lichens. Pale greyish-green to green. Slightly cracked, wrinkled and warty; lacking an outer-layer (=ecorticate). Squat flask-like sexual spore containers (=perithecia) are dull black, sparse, to 0.3mmØ. Sexual spores (ascospores) long & thin, to 35x7µm; with 5-6 cross-walls (=septa) and a gelatinous sheath.

SIMILAR SPECIES: Porina cestrensis is known as a species complex, with sexual spores (ascospores) of varying shape, dimensions, and numbers of cross-walls (=septa) from 7-12 (vs. 5-6) [PMc00].

Enlarged Image of 'Porina cestrensis aff.'

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea:
RR	MG	AT	MK	MT	AK	PL	TK	MN
P

Northern Group:
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

Porina cestrensis aff. (Tuck. ex Mich.)
TAXONOMY: MYCETAE (=Fungi); MYCOPHYCOPHYTA (=Lichens); ASCOLICHENES; Pyrenulales; TRICHOTHELIACEAE

Vouchers & References

Vouchers:
Rarotonga: 1 specimen, Te Kou lower slopes c.80m, on bark dominated by Pyrenula spp. lichens, McCarthy 1244/CANB (PMc00).

References:
Special Reference: McCarthy, P.M. (2000) The Lichens of Rarotonga, Cook Islands, South Pacific Ocean II: Parmelliaceae. Lichenologist 32(1):20.

Data Update History (information):
zB02, 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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