Lichens are abundant and highly diverse in tropical areas such as the Philippines due to its climate and geographical features.However,several regions of the country remained underexplored or unexplored and many speci...Lichens are abundant and highly diverse in tropical areas such as the Philippines due to its climate and geographical features.However,several regions of the country remained underexplored or unexplored and many species remained undiscovered in the country’s many unique habitats.This study determines the occurrence of foliose lichens in Casaroro Falls and Pulangbato Falls in Valencia,Negros Oriental,Philippines.The lichen morphologies were characterized using available taxonomic keys.Among the 26 lichen samples collected from the two falls,23 specimens were identified based on their morphological and biochemical characteristics.Of these,8 species were specific to Casaroro Falls and 13 species to Pulangbato Falls,with only 2 species of lichens found on both waterfalls.Interestingly,17 species are new records for the Philippines.展开更多
Austroeupatorium inulaefolium (B. L. Robinson) K. et R. has been investigated. A collection from Ecuador gave several ent-labdanes like austrofolin and related compounds. A second collection from Paraguay gave ent-kau...Austroeupatorium inulaefolium (B. L. Robinson) K. et R. has been investigated. A collection from Ecuador gave several ent-labdanes like austrofolin and related compounds. A second collection from Paraguay gave ent-kaurene derivatives and three nor-ent-labdanes. A third investigation of material from Argentina also gave ent-kaurenes and nor-ent-labdanes, which were only slightly different from those of the Paraguay location.展开更多
Langston Hughes’s work must be seen in context and continuity not only with African American writers like Paul Laurence Dunbar,W.E.B.Du Bois,and James Weldon Johnson,but with acknowledged white forebears such as Walt...Langston Hughes’s work must be seen in context and continuity not only with African American writers like Paul Laurence Dunbar,W.E.B.Du Bois,and James Weldon Johnson,but with acknowledged white forebears such as Walt Whitman and Carl Sandburg.A look at poems by Whitman and Sandburg reveal a writer who modeled some of his work on the writings of the earlier poets,revealing his own aesthetic alterations to the work of these earlier writers and establishing his contribution to the American traditions of poetry.展开更多
文摘Lichens are abundant and highly diverse in tropical areas such as the Philippines due to its climate and geographical features.However,several regions of the country remained underexplored or unexplored and many species remained undiscovered in the country’s many unique habitats.This study determines the occurrence of foliose lichens in Casaroro Falls and Pulangbato Falls in Valencia,Negros Oriental,Philippines.The lichen morphologies were characterized using available taxonomic keys.Among the 26 lichen samples collected from the two falls,23 specimens were identified based on their morphological and biochemical characteristics.Of these,8 species were specific to Casaroro Falls and 13 species to Pulangbato Falls,with only 2 species of lichens found on both waterfalls.Interestingly,17 species are new records for the Philippines.
文摘Austroeupatorium inulaefolium (B. L. Robinson) K. et R. has been investigated. A collection from Ecuador gave several ent-labdanes like austrofolin and related compounds. A second collection from Paraguay gave ent-kaurene derivatives and three nor-ent-labdanes. A third investigation of material from Argentina also gave ent-kaurenes and nor-ent-labdanes, which were only slightly different from those of the Paraguay location.
文摘Langston Hughes’s work must be seen in context and continuity not only with African American writers like Paul Laurence Dunbar,W.E.B.Du Bois,and James Weldon Johnson,but with acknowledged white forebears such as Walt Whitman and Carl Sandburg.A look at poems by Whitman and Sandburg reveal a writer who modeled some of his work on the writings of the earlier poets,revealing his own aesthetic alterations to the work of these earlier writers and establishing his contribution to the American traditions of poetry.
