A NEW SPECIES OF DIPLODISCUS TURCZ. (TILIACEAE), RELATED TO BROWNLOWIA ROXB.

Diplodiscus longipetiolatus Kosterm. is described based on a specimen collected in East Kalimantan

TWO REMARKABLE LINDERA SPECIES (LAURACEAE) PROBABLY REPRESENTING AN UNDESCRIBED GENUS

Two species of Lindera (Lauraceae), on from Annam (Lindera spicata spec. nov.) an d one from Sulawesi, Indonesia (Lindera racemiflora spec. nov.) with unusual kind of inflorescence are described. Their genetic identity is not absolutely sure, as mature flowers are lacking. Ultimately they may belong to an undescribed genus

Population genomic analysis of mango (Mangifera indica) suggests a complex history of domestication

Trust Humans have domesticated diverse species from across the plant kingdom, yet much of our foundational knowledge of domestication has come from studies investigating relatively few of the most important annual food crops. Here, we examine the impacts of domestication on genetic diversity in a tropical perennial fruit species, mango (Mangifera indica). We used restriction site associated DNA sequencing to generate genomic single nucleotide polymorphism (SNP) data from 106 mango cultivars from seven geographical regions along with 52 samples of closely related species and unidentified cultivars to identify centers of mango genetic diversity and examine how post-domestication dispersal shaped the geographical distribution of diversity. We identify two gene pools of cultivated mango, representing Indian and Southeast Asian germplasm. We found no significant genetic bottleneck associated with the introduction of mango into new regions of the world. By contrast, we show that mango populations in introduced regions have elevated levels of diversity. Our results suggest that mango has a more complex history of domestication than previously supposed, perhaps including multiple domestication events, hybridization and regional selection. Our work has direct implications for mango breeding and genebank management, and also builds on recent efforts to understand how woody perennial crops respond to domestication

A NEW SPECIES OF DIPLODISCUS TURCZ. (TILIACEAE), RELATED TO BROWNLOWIA ROXB.

Diplodiscus longipetiolatus Kosterm. is described based on a specimen collected in East Kalimantan

THE GENUS BURRETIODENDRON* Rehder (Tiliaceae)

Seven species of Burretwdendron are recognized, of which B. siamensis and B. yunnanensis are new to science. The distributional area of the genus covers Siam (one species), Yunnan (two species), Kweichow (one species);  Kwangsi (three species)  and Tonkin (two species). B. tonkinensis is reduced to the synonymy of B. hsienmu. A key to the species is presented

THE NEW WORLD SPECIES OF CINNAMOMUM TREW (LAURACEAE)

The American species of Phoebe Nees are relegated to Cinnamomum Trew; the reasons for this transfer are discussed. To retain nomenclatural stability the new combinations which have become necessary are presented, in anticipation of a general revision of the genus Cinnamomum; 68 new combinations and names are presented

THE GENUS BURRETIODENDRON* Rehder (Tiliaceae)

Seven species of Burretwdendron are recognized,of which B.siamensis and B.yunnanensis are new to science.The distributional area of the genus covers Siam (one species), Yunnan (two species),Kweichow (one species);Kwangsi (three species)and Tonkin (two species).B. tonkinensis is reduced to the synonymy of B.hsienmu. A key to the species is presented

THE NEW WORLD SPECIES OF CINNAMOMUM TREW (LAURACEAE)

The American species of Phoebe Nees are relegated to Cinnamomum Trew; the reasons for this transfer are discussed. To retain nomenclatural stability the new combinations which have become necessary are presented, in anticipation of a general revision of  the   genus   Cinnamomum;   68   new   combinations   and   names   are presented.<br /