Acaena magellanica (Lam.) Vahl (Rosaceae)

Growth and reproduction of New Zealand Acaena (Rosaceae) species in relation to rarity and commonness

In New Zealand, as elsewhere, research on rare species has been dominated by autecological studies of individual threatened species. Limitations of this approach are that it involves no comparison with related common species which may have similar traits, and that the minimal sample size prevents generalisation about causes and consequences of rarity. We report on experimentally determined grow...

Fruit features in relation to the ecology and distribution of Acaena (Rosaceae) species in New Zealand

Fruit features of 17 Acaena species in New Zealand were investigated to determine the relations between reproductive allocation patterns, mode of dispersal and species ecology. Three basic morphological types, corresponding to major sections within the genus, are represented: spineless fruits (Sect. Pteracaena one species), spined fruits lacking barbs (Sect. Microphyllae 6 species), and spined ...

Neillia Includes Stephanandra (Rosaceae)

Recent phylogenetic analyses of tribe Neillieae in Rosaceae, which comprises Neillia, Physocarpus, and Stephanandra, based on both nuclear and chloroplast DNA sequences revealed that Neillia and Stephanandra together form a strongly supported monophyletic group and that species of Stephanandra are nested within Neillia. The close relationship between Neillia and Stephanandra is also supported b...

Felix Lam

Multiple models for Rosaceae genomics.

The plant family Rosaceae consists of over 100 genera and 3,000 species that include many important fruit, nut, ornamental, and wood crops. Members of this family provide high-value nutritional foods and contribute desirable aesthetic and industrial products. Most rosaceous crops have been enhanced by human intervention through sexual hybridization, asexual propagation, and genetic improvement ...