Are phylogenies derived from family-level supertrees robust for studies on macroecological patterns along environmental gradients? Influence of environmental factors on phylogenetic structure at multiple spatial scales in an evergreen broad-leaved forest of China Phylogenetic Structure of a Rare Plant Community in Houhe Nature Reserve over Time and Space Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region, southwest China Phylogenetics of early branching eudicots: comparing phylogenetic signal across plastid introns, spacers, and genes Plant community assembly rules across a subalpine grazing gradient in western Sichuan, China Research advances in plant community assembly mechanisms