科研之友
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摘要
a taxonomic study of the genus hypericum l. (hypericaceae) in the state of paran芍 was carried out. this genus includes about 350 species, mostly cosmopolitan, occurring in temperate and subtropical regions worldwide. seventeen species are found in brazil, with twelve species and three subspecies in paran芍, in all phytogeographic regions of the state, mainly in grasslands. an identification key for the taxa, descriptions, illustrations and data on geographic distribution and ecology are provided.
