Learn More
The value of using qualitative research within or alongside randomised controlled trials (RCTs) is becoming more widely accepted. Qualitative research may be conducted concurrently with pilot or full RCTs to understand the feasibility and acceptability of the interventions being tested, or to improve trial conduct. Clinical Trials Units (CTUs) in the United(More)
Nassauvia falklandica (Compositae: Mutisieae: Nassauviinae), a new endemic herbaceous sub-shrub from the Falkland Islands, is described, illustrated and its conservation status assessed. N. falklandica is unique within the genus in possessing a row of pits towards the apex of the abaxial surface of its leaves; stomata and stiff white hairs are confined to(More)
A new species of Neocuatrecasia (Compositae: Eupatorieae: Gyptidinae), N. epapposa, is described and illustrated from the Provincia Ñuflo de Chávez, Departmento de Santa Cruz, eastern Bolivia. The new species is compared with the other low altitude species, N. tysonii, described from the Departmento de Beni, but differs primarily in its epappose achenes(More)
Summary. A new, dwarf perennial species of Pectis (Compositae: Heliantheae: Pectidinae), Pectis harryi, is described and illustrated from the Departamento de Santa Cruz, eastern Bolivia. The new species adds to the increasingly recognised richness of the rock platforms and low granite shield inselbergs (lajas) of the provinces of Ñuflo de Chavez and(More)
A new species of Sciadocephala (Compositae: Eupatorieae: Adenostemmatinae), S. gracieliae, is described and illustrated from Mato Grosso State, Brazil — the first record of the genus for the country. Distinctions of the new species are discussed and the corolla colour is confirmed as green, an unusual colour in the Eupatorieae. A synopsis and key to the six(More)
A new species of Ichthyothere, I. woodii (Compositae: Heliantheae: Milleriinae) is described and illustrated from the cerrados of the Department of Santa Cruz, eastern Bolivia. The distribution of Bolivian and Brazilian species is tabulated, and the large number of species in cerrado and campos rupestres vegetation commented on.
A new purple-flowered discoid Calea (Compositae: Heliantheae: Neurolaeninae), Calea woodii (Calea sect. Meyeria (DC.) Benth. & Hook. f.), is described and illustrated from the Serranía de Cochís and the Serranía de Santa Bárbara, Chiquitos, Department of Santa Cruz, Bolivia. The relationship of this species is discussed and a key to the purple-flowered(More)
Attempts to identify a modern collection of Chromolaena (Wood et al. 19515) proved problematic, especially when comparison of type material in K, against images of types in NY, was carried out. Examination of the type material of Eupatorium bangii Rusby (= Chromolaena bangii (Rusby) R. M. King & H. Rob.) has shown that the protologue is effectively a(More)
A synopsis of Hypericophyllum (Compositae: Heliantheae) is presented. A new section is described, together with three new combinations; a total of ten species are recognised, and the synonymy of two expanded. The name H. compositarum is lectotypified and an epitype designated. The position of H. altissimum is discussed. One or two obvious historical errors(More)