03140nas a2200145   4500008004100000020001300041245012900054210006900183260005600252300001200308490000700320520251700327100001902844856013102863       1980                        eng d  a0040026200aComparative Anatomy and Morphology of Psiloxylon and Heteropyxis, and the Subfamilial and Tribal Classification of Myrtaceae0 aComparative Anatomy and Morphology of Psiloxylon and Heteropyxis  bInternational Association for Plant Taxonomy (IAPT)  a559-5950 v293 aEvidence from wood, leaf, and floral anatomy, from palynology, and from reconsideration of vegetative and reproductive morphology fully support (1) the placement of Heteropyxis by Fernandes (1971), Stern & Brizicky (1958), and Weberling (1963) in Myrtaceae/Leptospermoideae on the basis of organography, palynology, and petiole and wood anatomy, and (2) the placement of Psiloxylon by van Tieghem (1904) in Myrtaceae on the basis of especially vegetative anatomy. Diagnostic myrtaceous characters shared by both genera include: entire, simple, gland-dotted, penninerved leaves wth intramarginal veins; rudimentary stipules (Heteropyxis only); pentamery; nectary lining floral tube; imbricate, persistent calyx; many pollen features; sunken styles; baccate or capsular fruits (resp. Psiloxylon and Heteropyxis); exalbuminous seeds; bicollateral bundles; secretory cavities in all aerial organs, including the anthers; unilacunar one-trace nodes; arcuate petiolar bundles with sclerenchymatous sheaths (only in lamina of Psiloxylon); vestured pits; wood fibers with distinctly bordered pits; and tannin. Both genera, however, differ from many, but not all Myrtaceae in having: alternate leaves; unisexual, but bisexual-appearing flowers (only the staminate in Psiloxylon); perigyny; few stamens (Psiloxylon diplostemonous, Heteropyxis essentially obdiplostemonous); short style and divided stigma (Psiloxylon only); cancellate seed (Psiloxylon only); and such wood characters as septate, crystalliferous fibers and lack of vasicentric tracheids in Psiloxylon, and lack of axial parenchyma in Heteropyxis. The segregates Heteropyxidaceae and Psiloxylaceae should thus be included in Myrtaceae. The foregoing ensemble of characters conclusively excludes for Heteropyxis any assignment to Rhamnaceae or Rutaceae, for Psiloxylon any assignment to Bixaceae sensu lato, Flacourtiaceae, or Guttiferae, and for both genera an assignment to Lythraceae. Because it would be anomalous in either of the two traditional myrtaceous subfamilies, Psiloxylon is best treated as a new subfamily in Myrtaceae. Finally, since Leptospermeae and Chamaelaucieae differ as much from each other as either does from Myrteae, Chamaelaucieae should be elevated to subfamilial status in Myrtaceae. The family Myrtaceae thus has four subfamilies: Myrtoideae, Psiloxyloideae, Leptospermoideae, and Chamaelaucioideae. An addendum discusses Briggs & Johnson's (1979) detailed paper on vegetative and especially reproductive structure of Myrtaceae.1 aSchmid, Rudolf  uhttps://myrcia.myspecies.info/content/comparative-anatomy-and-morphology-psiloxylon-and-heteropyxis-and-subfamilial-and-tribal00473nas a2200133   4500008004100000020001300041245005600054210005100110260005600161300001200217490000700229100002000236856008300256       1968                        eng d  a0040026200aThe Genera of American Myrtaceae: An Interim Report0 aGenera of American Myrtaceae An Interim Report  bInternational Association for Plant Taxonomy (IAPT)  a354-4180 v171 aMcVaugh, Rogers  uhttps://myrcia.myspecies.info/content/genera-american-myrtaceae-interim-report00432nas a2200121   4500008004100000020001300041245004900054210004900103260005600152300001200208490000700220856008300227       1962                        eng d  a0040026200aInternational Association for Plant Taxonomy0 aInternational Association for Plant Taxonomy  bInternational Association for Plant Taxonomy (IAPT)  a261-2930 v11  uhttps://myrcia.myspecies.info/content/international-association-plant-taxonomy00523nas a2200133   4500008004100000020001300041245007000054210006800124260005600192300001200248490000600260100002000266856010300286       1956                        eng d  a0040026200aNomenclatural Notes on Myrtaceae and Related Families (Continued)0 aNomenclatural Notes on Myrtaceae and Related Families Continued  bInternational Association for Plant Taxonomy (IAPT)  a133-1470 v51 aMcVaugh, Rogers  uhttps://myrcia.myspecies.info/content/nomenclatural-notes-myrtaceae-and-related-families-continued00530nas a2200133   4500008004100000020001300041245007300054210006900127260005600196300001200252490000600264100002000270856010600290       1956                        eng d  a0040026200aNomenclatural Notes on Myrtaceae and Related Families (Continuation)0 aNomenclatural Notes on Myrtaceae and Related Families Continuati  bInternational Association for Plant Taxonomy (IAPT)  a162-1670 v51 aMcVaugh, Rogers  uhttps://myrcia.myspecies.info/content/nomenclatural-notes-myrtaceae-and-related-families-continuation02082nas a2200181   4500008004100000020001300041245010600054210006900160260005600229300001000285490000700295520139400302100001501696700001901711700002201730700001901752856012901771       2006                        eng d  a0040026200aMolecular Systematics of Syzygium and Allied Genera (Myrtaceae): Evidence from the Chloroplast Genome0 aMolecular Systematics of Syzygium and Allied Genera Myrtaceae Ev  bInternational Association for Plant Taxonomy (IAPT)  a79-940 v553 aWith as many as 1000 included species, Syzygium s.l. (including Syzygium and segregate genera such as Acmena, Acmenosperma, Cleistocalyx, Piliocalyx, and Waterhousea) comprises one of the major lineages within Myrtaceae, and is an important component of the Old-World tropical rainforest flora. As with other large genera, high species richness, an extensive distribution and relative homogeneity in morphology have hindered attempts to divide Syzygium s.l. Here, we investigate higher level relationships within the group, using parsimony and Bayesian analyses of cpDNA sequences from the matK and ndhF genes and the rpl16 intron, generated for a total of 87 species from the Syzygium group and eight outgroup taxa. Within the ingroup, four major well supported clades are found, which form a basal polytomy along with S. wesa and monotypic Anetholea. Generally, the molecular data provide little support for traditional divisions of Syzygium s.l., and the recognition of segregate groups such as Acmena, Acmenosperma, Cleistocalyx, Piliocalyx and Waterhousea. While homoplasy amongst morphological characters has misled attempts to divide the group, detailed and critical assessments of placental, ovular and seed morphology may provide novel insights into evolutionary relationships, and are an important future step in the development of a sound higher level taxonomy for Syzygium s.l.1 aBiffin, Ed1 aCraven, Lyn, A1 aCrisp, Michael, D1 aGadek, Paul, A  uhttps://myrcia.myspecies.info/content/molecular-systematics-syzygium-and-allied-genera-myrtaceae-evidence-chloroplast-genome