Claim · model-written summary
The authors recognize stramineus as a separate species.
- Taxon
- Echinocereus enneacanthus var. stramineus
Echinocereus enneacanthuse0 - Outcome
- a separate species, Echinocereus stramineuse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Echinocereus enneacanthus var. stramineus is in reality a separate species, Echinocereus stramineus.”
Title
F. G. Breckenridge III; John M. Miller Systematic Botany 1982. doi:10.2307/2418672
Other claims from this paper (11)
- Observation Enneacanthus and dubius form intergrading populations in Texas.
- Observation Field observations found E. merkeri synonymous with enneacanthus.
- Observation Field observations found E. conglomeratus synonymous with stramineus.
- Observation Members are pollinated by small solitary bees, without taxon specificity.
- Observation Members of the complex are xenogamous.
- Observation Enneacanthus and dubius reciprocal crosses had above 80% seed set.
- Observation Enneacanthus by stramineus crosses had reduced fertility with 50% to 80% seed set.
- Observation Floral flavonoids showed a consistent discontinuity between groups.
- Observation Isorhamnetin diglycosides were present in enneacanthus-dubius.
- Observation Isorhamnetin diglycosides were absent from stramineus.
- Observation The authors found no basis to maintain dubius as a species or variety.