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Gentiana springateana D.Maity sp. nov. (Gentianaceae) is described from the Sikkim Himalaya and placed in G. section Phyllocalyx (Kusn.) T.N.Ho. This new taxon is described and illustrated, and compared morphologically with two related taxa, Gentiana phyllocalyx C.B.Clarke and G. urnula Harry Sm.

Persian (Common) walnut (Juglans regia L.) is a famous fruit tree species valued for its nutritious nuts and high-quality wood. Although walnut is widely distributed and plays an important role in the economy and culture of Pakistan, the genetic diversity and structure of its populations in the country remains poorly understood. Therefore, using 31 nuclear microsatellites, we assessed the genetic diversity and population structure of 12 walnut populations sampled across Pakistan. We also implemented the geostatistical IDW technique in ArcGIS to reveal “hotspots” of genetic diversity. Generally, the studied populations registered relatively low indices of genetic diversity (NA = 3.839, HO = 0.558, UHE = 0.580), and eight populations had positive inbreeding coefficient (FIS) values. Low among-population differentiation was indicated by AMOVA, pairwise FST and DC. STRUCTURE, PCoA and neighbor joining (NJ) analysis revealed a general lack of clear clustering in the populations except that one population in Upper Dir was clearly genetically distinct from the rest. Furthermore, the Mantel test showed no correlation between the geographic and genetic distance (r = 0.14, p = 0.22), while barrier analysis suggested three statistically significant genetic barriers. Finally, the spatial interpolation results indicated that populations in Ziarat, Kashmir, Dir, Swat, Chitral, and upper Dir had high intrapopulation genetic diversity, suggesting the need to conserve populations in those areas. The results from this study will be important for future breeding improvement and conservation of walnuts in Pakistan.

Acmella radicans (Jacq.) R.K. Jansen var. radicans grows as a weed abundantly on waste places at Baruipur (South 24 Parganas dist., West Bengal) and reported here for first time from Eastern India. A detailed description, digital images of the plant, flower parts and illustration of the taxon is provided in the present communication. lkjka 'k iz Lrq r 'kks /k i= es a ,Des YYkk js fMdS Ul ¼tS d-½ vkj-ds-tS Uklu iz Hks n js fMdS Ul ,d rhoz xfr ls iz lkfjr gks us okyh ?kkl gS A tks c:bZ iq j ¼nf{k.k 24 ijxuk tuin] if'pe ca xky ds vif'k"V LFkkuks a ls iz kIrdj iw ohZ Hkkjr ds fy;s iz Fke ckj vfHkys f[kr dh xbZ gS A bl tkfr dk foLrr fooj.k] fMftVy Nk;kfp=] iq "ih; Hkkxks a dk fp=.k fn;k x;k gS A ,Des Yyk js fMdS Ul ¼,LVjs fl;k½] iw ohZ Hkkjr es a ,d u;h ves fjdh ?kkl ns ocz r eS rh] vfucZ u ljnkj ,oa lq /kka 'kq q 'ks [kj nk'k