B.L. Rye. An update to the taxonomy of some Western Australian genera of Myrtaceae tribe Chamelaucieae. 1. Calytrix. Nuytsia 23: 483-501 (2013). Calytrix watsonii (F.Muell. & Tate) C.A.Gardner is reinstated and four species with conservation priority are described: C. hislopii Rye, C. patrickiae Rye, C. sagei Rye and C. viscida Rye. Keys are given for the species groups that include these taxa. The current study has eliminated about half of the informal names that have been in use for Western Australian members of the genus. Several species complexes that need further study are noted. GroupInformal name Year Outcome C. acutifolia complex

Most members of the south-western Australian genus Hypocalymma (Endl.) Endl. have seeds with a shallowly to very deeply pitted testa. Two small groups of species, both revised here, differ in having a smooth or colliculate testa. Both groups occur in humid environments in the extreme south-west of Western Australia and show vegetative adaptations consistent with this habitat preference. The larger group, Hypocalymma sect. Cardiomyrtus Schauer, is reinstated. A new combination, H. minus (Strid & Keighery) Keighery, is made, bringing the total species recognised to five, and lectotypes are selected for two synonyms, H. boroniaceum F.Muell. ex Benth. and H. hypericifolium Benth. The other group is extremely rare, consisting of the possibly extinct species H. connatum Strid & Keighery, and a new species known from a single population, H. verticillare Rye. The latter group, named here as Hypocalymma sect. Verticilla Rye, is readily distinguished by its 3-ridged young stems and consistently whorled leaves, and the new species is unusual in having extreme differences in the sizes of the anthers on different stamens within each flower. Molecular data indicate that sect. Verticilla is sister to sect. Cardiomyrtus. Evidence of taxonomic relationships is also presented from studies of hybridisation and insect associations.

Rye, B.L. New and priority taxa in the genera Cryptandra and Stenanthemum (Rhamnaceae) of Western Australia. Nuytsia 10 (2): 255-305 (1995). The genus Stenanthemum is reinstated, with two new combinations: Stenanthemum complicatum (F. Muell.) Rye and S. divaricatum (Benth.) Rye. The following new Rhamnaceae taxa, some of which have conservation significance, are described and illustrated: Cryptandra apetala var. anomala Rye, C. arbutiflora var. borealis Rye, C. arbutiflora var.

Rye, B.L. A partial revision of the south-western Australian species of Micromyrtus (Myrtaceae: Chamelaucieae). Nuytsia 16(1): 117-147 (2006). This partial revision of the genus Micromyrtus Benth., deals mainly with species that have a ten-ribbed hypanthium, but excludes the M. racemosa complex. All of the new species are endemic to the south-west of Western Australia. Eight taxa are named: M. acuta Rye, M. chrysodema Rye, M. clavata J.W. Green ex Rye, M. elobata subsp. scopula Rye, M. placoides Rye, M. navicularis Rye, M. redita Rye and M. triptycha Rye. A key is given for Western Australian members of the genus. Micromyrtus is compared with its close relative Corynanthera J.W. Green, and the morphological specialisations of both genera and their possible affinities to other genera in tribe Chamelaucieae are discussed. The compressed winged diaspore of Corynanthera, which has the peduncle fused to both the bracteoles and fruit, is of particular interest, and an illustration compares it with diaspores from five-and ten-ribbed species of Micromyrtus. 123 B.L. Rye, A partial revision of the south-western Australian species of Micromyrtus 5. Leaves more or less narrowly oblong-elliptic, 2.5-4 mm long. Sepals with small denticulate auricles, the hypanthium clearly visible. (Cundeelee to Rawlinson Range.

Recent molecular and morphological studies of Pomaderreae indicate that a number of species that have traditionally been of uncertain affi nity require new genera. Blackallia C.A. Gardner is lectotypifi ed and restricted to one species, B. nudifl ora (F. Muell.) Rye & Kellermann, for which a new combination is made. Two new genera are described, Serichonus K.R. Thiele comprising the single species S. gracilipes (Diels) K.R. Thiele, and Papistylus Kellermann, Rye & K.R. Thiele with two species, P. grandifl orus (C.A. Gardner) Kellermann, Rye & K.R. Thiele and the new species P. intropubens Rye. All three genera are restricted to the South West Botanical Province of Western Australia. They are closely related but can be readily distinguished from one another by some signifi cant morphological differences, especially in their infl orescences. A revised key to the genera of Pomaderreae is presented and lectotypes are chosen for B. nudifl ora and S. gracilipes.