| Sample ID | 75-2-15a |
|---|---|
| Species | acuminatum |
| Genus | Polygonum |
| Family | POLYGONACEAE |
| Common name | Tapertip smartweed |
| Search |
| Pollen / Spore | pollen |
|---|---|
| Morphologic type | pantoporate |
| Surface pattern | reticulate |
| Equatorial size | mean 38.5 |
| Polar size | mean 38.5 |
| Equatorial shape | circular |
| Polar shape | circular |
| Grain arrangement | dicot |
| Aperture count | M |
| Pore morphology | thickened |
| Pore surface shape | circular |
| Wall evenness | even |
| Columella visible? | True |
| Morphology notes | Periporate. Pore aperture round and deep. Semi-tectate, per-reticulate. Columnellae taller under defined points that creates hexagon-like shape. Lumina spaced between muri which is contiguous. |
| Plant type | angiosperm |
|---|---|
| Floristic region(s) | East Pacific Islands , Other outside Australasia |
| Habit aquatic(s) | floating attached, submerged, emergent |
| Cultivated? | True |
| Vegetation communities | herbland |
| Habitat notes | Floating aquatic plant found in ponds, lakes, marshes and peat bogs. Common in the three large craters on Easter Island. Found in South and Central America, Mexico, Columbia, Uruguay but not in Chile and the Caribbean. This plant formed the floating mat on Rapa Nui (Easter Island) around 3500 years ago when the pollen was first identified in the fossil pollen record in the core KAO3 of Rano Kao (Gossen, 2010) |
| Collector | Schinini 27577 |
|---|---|
| Collection site | Dep. Ituzaingo |
| Collection country | Argentina |
| Collection date | 1993-01-20 |
| Collection notes | Processed at the Pollen Laboratory, University of Minnesota, USA from the collecton of Ed Cushing, slide ref. B3643. |
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