Phylogeny of Major Lineages in Melastomataceae, Subfamily Olisbeoideae: Utility of Nuclear Glyceraldehyde 3-Phosphate Dehydrogenase (<I>GapC</I>) Gene Sequences

Revised treatment of Mozambican Memecylon (Melastomataceae—Olisbeoideae), with descriptions of four new species in M. section Buxifolia

“…In accordance with recent morphological and molecular findings (Jacques-Félix 1978, Bremer 1982, Stone 2006, 2014, Stone and Andreasen 2010, it is now circumscribed to exclude the monospecific western and central African genus Spathandra Guill. & Perr.…”

Lijndenia udzungwarum (Melastomataceae–Olisbeoideae): a new, endemic species from the Udzungwa Mountains of southern Tanzania

“…Additional characteristics distinguishing Lijndenia from the other memecyloid genera include its inflorescences with a pair of persistent bracteoles fused to form a cupule or "false calyx" immediately subtending each flower; petals unguiculate; ovary strictly unilocular; and embryo curved, with a short hypocotyl and leafy cotyledons, the inner cotyledon bent and rolled around the involute edge of the outer (Zollinger & Moritzi in Moritzi 1846, Jacques-Félix 1977, 1978, 1983, 1985a, 1985b, 1995, Rao & Jacques-Félix 1978, Bremer, 1981, 1982, Rao et al 1983, Stone 2004. Exclusive monophyly of Lijndenia was strongly supported in earlier phylogenetic analyses of the nuclear GapC gene (Stone 2006), and is also seen in analyses with denser taxonomic sampling based on sequences of the 5' ETS and ITS regions of nuclear ribosomal DNA (R.D. Stone, unpublished data).…”

Recognition of Host Plant Volatiles by Pheidole minutula Mayr (Myrmicinae), an Amazonian Ant‐Plant Specialist

“…Previous work has found no difference in the profile of cyanogenic glycosides found in myrmecophyte and nonmyrmecophite Melastomataceae (Michelangeli & Rodrigues 2005), and there are no obvious differences between the chemical composition of Macaranga that do and do not have mutualistic interactions with ants ( Jürgens et al 2006). Nevertheless, we suggest that more comprehensive chemical analyses evaluating both the type and quantity of volatile compounds, coupled with a robust phylogeny of the Melastomataceae (Michelangeli et al 2004, Stone 2006, are needed to test the hypotheses that mymecophytic species have similar volatile profiles. Although we present the number of times no choice was made by queens, statistical analyses were conducted using only those trials in which a choice for one of the volatiles was made (sensu Edwards et al 2006 In our collective 20 yr of research with this system, including the inspection of 4 1000 plants, only one colony of P. minutula has been found in T. bullifera (H. L. Vasconcelos, E. M. Bruna, and T. J. Izzo, pers.…”