Schoenoplectus californicus CYPERACEAE

Sample information

Sample ID12-40-1
Speciescalifornicus
GenusSchoenoplectus
FamilyCYPERACEAE
Common nameTotora, Nga'atu
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Morphology

Pollen / Sporepollen
Morphologic typeinaperturate
Surface patternpsilate
Equatorial sizemean 45
Polar sizemean 40
Grain arrangementmonocot
Aperture count4
Pore surface shapeirregular
Exine typetectate
Columella visible?True
Morphology notesPeriporate. Pore aperture thin and not defined. Exine thin, appears to be scabrate but actual thinning of exine at columnellae area below exine. Sculpture tectate/psilate. Shape irregular and sometimes elongated. Often found folded in slides with pores broken. Three equatorial pores and one polar.

Ecology and Geography

Plant typeangiosperm
Floristic region(s)Hawaiian Islands , East Pacific Islands , New Zealand and Islands (south) , Other outside Australasia
Cultivated?True
Vegetation communitiesherbland
Habitat notesWet environments particularly the edge of lakes,marshes, peat bogs and on Easter Island on the floating mat. Humans cultivate Totora by planting rhizomes in trenches up to 5m deep in South America on the coast as well as at Lake Titicaca. Found in South America, California to Louisiana across the southern United States and Hawaii. Found in seeds and fossil pollen record of KAO3 in the lake Rano Kao, Rapa Nui (Easter Island) over the past 15k years. (Gossen,2010)

Collection

CollectorDickerman 1044
Collection sitePuebla
Collection countryMexico
Collection date1958-12-18
Collection notesProcessed at the Pollen Laboratory, University of Minnesota, USA from the collecton of Ed Cushing, slide ref. B3652.

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