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| | Region X |
 | | Field collection trips were conducted to the different forests of Mt. Kitanglad, Impasug-ong, Bukidnon; Mt. Apulang, Imbayao, Malaybalay, Bukidnon and Marilog Forests, Bo. |
 | | However, with the alarming rate by which our forests are being denuded and destroyed, many species of pteridophytes become rare, endangered, threatened and depleted. |
 | | From each forest area, pteridophytes species were collected, identified and described. |
| www.pcarrd.dost.gov.ph /consortia/nomcarrd/researches/1994/1994_r6.htm |
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