The Qinghai-Tibetan Plateau (QTP) is the highest and one of the most extensive plateaus in
the world. Phylogenetic, phylogeographic, and ecological studies support plant …

The present paper reviews advances in the study of two major intercontinental disjunct
biogeographic patterns:(i) between Eurasian and western North American deserts with the …

Summary 1 Climate change in South Africa may threaten the sclerophyllous evergreen
shrubs of this region. Available data suggest that they are not as tolerant of water stress as …

Trees, shrubs, rarely subshrubs, lianas, frequently with contact dermatitis-causing exudate;
vertical resin canals present in bark and in phloem of petioles and large veins of leaves, also …

Abstract Background and Aims Physical dormancy (PY) occurs in seeds or fruits of 18
angiosperm families and is caused by a water-impermeable palisade cell layer (s) in seed or …

Many angiosperm families are distributed pantropically, yet for any given continent little is
known about which lineages are ancient residents or recent arrivals. Here we use a …

Charles Darwin corresponded frequently with Harvard professor Asa Gray between 1855
and 1859 concerning the floristic similarity between eastern North America and eastern …

Nucleotide sequences from the plastome are currently the main source for assessing
taxonomic and phylogenetic relationships in flowering plants and their historical …

Recent biogeographic and evolutionary studies have led to improved understanding of the
origins of exceptionally high plant diversity in the California Floristic Province (CA-FP) …

Salix is a taxonomically difficult genus and its generic limits and infrageneric division are still
highly controversial. We employed sequences of the chloroplast rbcL gene, trnD‐T spacer …