Primula dongchuanensis Z.K.Wu & Yuan Huang, a new species of Primulaceae from Dongchuan of northern Yunnan, China, is described and illustrated. Both morphological and molecular evidence support P. dongchuanensis as a member of the sect. Proliferae. It is similar to P. aurantiaca W.W.Smith & Forrest, but is distinguished by having unique raceme inflorescences. Its distribution, phenology and conservation status are also provided.

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This index lists all 3367 normalized pharmacological activity terms appeared in the encyclopedia in alphabetical order and a number code sequence of the related compounds follows the bold term immediately.

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Plants of 4 wild Primula species were planted in the field in Kunming and the photosynthesis was tested with LI-6400 portable photosynthesis system.Species difference was found in light compensation point(LCP,#mu#m~(-2).s~(-1)),light saturation point(LSP,#mu#mol.m~(-2).s~(-1)) and CO_(2) compensation point (CCP,#mu#Mol.mol~(-1)) of photosynthesis.Primula pulverulenta Duthie had the highest LCP(28),the other 3 species had lower LCP(8-15).P.obconica Hance had both low LSP(80) and photosynthetic rate(Pn),and highest CCP(80).P.bulleyana Forr.and P.pulverulenta had both the highest LSP(500) and Pn,and intermediate CCP(64-69).P.forrestii Balf.f.had middle LSP and Pn,but the lowest CCP(54).The diurnal changes of Pn and transpiration rate(Tr) were one-peaked surves.Pn and Tr reached a maximum at about 10:00 and 13:00 respectively.Pn suppression at noon and in the afternoon was mainly caused by an increased stomata resistance,but this was the result of an increased carboxylation resistance at late afternoon.Pn was found closely correlated with leaf conductance to water,transpiration rate,photosynthetically active radiation,intercellular CO_(2) concentration and atmospheric pressure.

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