Claim · model-written summary
Group II pollen and inflorescence features suggest independent evolution.
ViscumNot reportedGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The unique palynological features of Group II species coupled with their inflorescence structure suggest an independently evolving group”
t0“VISCUM”
Title
FINE STRUCTURE OF MISTLETOE POLLEN. V. MADAGASCAN AND CONTINENTAL AFRICAN VISCUM L. (VISCACEAE)
Sylvia M. Feuer; Job Kuijt; Delbert Wiens American Journal of Botany 1982. doi:10.1002/j.1537-2197.1982.tb13248.x
Other claims from this paper (13)
- Observation Madagascan Viscum pollen resembles Asian pollen in overall form.
- Observation Madagascan Viscum equatorial ektexine most resembles continental African taxa.
- Observation Continental African Viscum varies widely in pollen shape and apertures.
- Observation Oblate pollen shape is unique to Africa in this comparison.
- Observation Aperture number varies within and between African Viscum populations down to individual flowers.
- Observation Simple colpate apertures in Viscum are restricted to Africa.
- Observation Group I species have tricolporate rounded convex pollen with rodlet/granular equatorial ektexine.
- Observation Group II species have multiapertures, concave lobate shape, uniform sculpturing and granular ektexine.
- Observation Four African Viscum species have no clear Group I or II affinity.
- Observation Viscum pollen characters show a trend toward spheroidal shape, multiple apertures and uniform sculpturing.
- Observation Pollen characters suggest ties among Australia, Asia and Madagascar.
- Observation Pollen characters suggest an even stronger Madagascar to continental Africa relationship.
- Observation The relationship of most African Viscum outside obvious Madagascan affinities remains obscure.