Claim · model-written summary
A lineage of four monotypic genera was sister to Lopidium and a heterogeneous clade.
- Taxon
- Arbusculohypopterygium, Canalohypopterygium, Catharomnion, and DendrocyathophorumCatharomnion
CanalohypopterygiumDendrocyathophorumArbusculohypopterygiume0 - Outcome
- sister to Lopidium plus a heterogenous cladee0
Verbatim
e0“A lineage comprising four monotypic genera (Arbusculohypopterygium, Canalohypopterygium, Catharomnion, and Dendrocyathophorum) is sister to Lopidium plus a heterogenous clade that includes Dendrohypopterygium, Hypopterygium, Cyathophorum hookerianum, and C. parvifolium.”
Title
Jonathan A. Shaw; Ingo Holz; Cymon J. Cox; et al. Systematic Botany 2008. doi:10.1600/036364408783887311
Other claims from this paper (8)
- Observation Hypopterygiaceae was strongly supported as monophyletic.
- Observation Cyathophorum was unambiguously polyphyletic.
- Observation Dendrohypopterygium was unambiguously polyphyletic.
- Observation Cyathophorum bulbosum and C. adiantum formed a sister lineage to the remaining family.
- Observation Cyathophorum hookerianum was transferred to Hypopterygium.
- Observation Cyathophorum parvifolium was transferred to Hypopterygium.
- Observation Anisophylly and a border of differentiated lateral leaf cells distinguish Hypopterygiaceae from Hookeriaceae, with exceptions and repeated losses.
- Observation Intermediate cells in axillary hairs arose early in Hypopterygiaceae evolution but are absent in the two sister Cyathophorum species.