21. Forty five acres of the original longleaf pine ( " Pinus palustris " ) habitat remain today. 22. Its closest relative, " Dirca palustris ", lives in the Eastern half of North America. 23. This spurge grows in coastal areas in longleaf pine ( " Pinus palustris " ) or oaks. 24. References to " wild rice " native to North America are to the unrelated " Zizania palustris ". 25. The rising water tables favor marsh rice rats ( " Oryzomys palustris " ) over hispid cotton rats. 26. The population of Beata Island is thought to be an endemic subspecies : " M . palustris vasta ". 27. Torrens Street, planted with oak ( Quercus palustris ), is a particularly fine example of a garden city streetscape. 28. "Dirca palustris " is occasionally cultivated, although its slow growth seems to prevent its widespread use in horticulture. 29. Researchers had new experiments with purple bacteria, Rhodopseudomonas palustris , by controlling the amount of light the bacteria was exposed to. 30. A gene that produces ruBisCo helps this strain of " R . palustris " to achieve energy generation through electrons.
