| Sample ID | 177-3-7 |
|---|---|
| Species | semitriloba |
| Genus | Triumfetta |
| Family | TILIACEAE |
| Common name | Sacramento burbark, Burweed, Jau-Jau |
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| Pollen / Spore | pollen |
|---|---|
| Morphologic type | tricolporate |
| Surface pattern | reticulate |
| Equatorial size | min 55, mean 57.5, max 60 |
| Polar size | min 30, mean 32.5, max 35 |
| Equatorial shape | prolate |
| Polar shape | circular |
| Grain arrangement | dicot |
| Pore colpuses | 3 |
| Colpi length | > 2/3 |
| Wall thickness | 2.5 |
| Exine type | semitectate |
| Columella visible? | True |
| Morphology notes | Pore aperture overlay on transverse colpi. Three pores thin near colpus. Pore larger than colpus. Prolate. Exine thickness 2.5um. Heavy reticulated with evenly spaced columnellae. Semi-tectate,per-reticulate. |
| Plant type | angiosperm |
|---|---|
| Floristic region(s) | Central Pacific , Hawaiian Islands , East Pacific Islands , Other outside Australasia , Maritime Southeast Asia |
| Vegetation communities | disturbed/anthropogenic, open forest, shrubland |
| Habitat notes | Tropical Asia, Polynesia and Tropical America. Florida and the Caribbean. Diverse habitat with precipitation ranging from 760-2000mm and found growing in Hawaii from sea-level to 1067m in elevation. The species seems to do better when disturbed, in full or partial sun as small groups or dispersed individual plants. Found in the KAO3 fossil pollen record from Rano Kao, Rapa Nui (Easter Island) (Gossen,2010) Four individual plants were seen growing in Rano Kao of which one was seen flowering and fruiting. (Alden 1990) |
| Collector | Purnomo 36 |
|---|---|
| Collection site | Jawa Timur,Lumajang |
| Collection country | Indonesia |
| Collection date | 1998-08-12 |
| Collection notes | Processed at the Pollen Laboratory, University of Minnesota, USA from the collecton of Ed Cushing, slide ref. B3350. |
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