The Cambridge British flora /

Moss, C. E.; Hunnybun, E. W.

doi:10.5962/bhl.title.138991

Cited by 19 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The hybrid is an important constituent of grassland and Cavers & Harper (1964) mention that there are indications ofa high degree of sterility. However, Lousley (1939) reported several undoubted fertile hybrids and Moss (1914) reported the hybrid as 'sometimes sterile'. Varying degrees of sterility are therefore reported for hybrid material (Cavers & Harper, 1967;Harper & Chancellor, 1959).…”

Section: Introductionmentioning

confidence: 99%

SEED POLYMORPHISM AND GERMINATION II. THE ROLE OF HYBRIDIZATION IN THE GERMINATION POLYMORPHISM OF RUMEX CRISPUS AND R. OBTUSIFOLIUS

Williams

1971

Weed Research

View full text Add to dashboard Cite

The morphology uC Rumex crispus L., R. obtusifolitis L. and putative hybrids was examined. There appeared to bo evidence of introgressive hybridization, particularly with backcrossing to R. crisptis. Seed germination in plants from a mixed population varied widely, but when plotted against the hybrid index for the parent planis ihc species could be partially separated in respect of germination behaviour. Some ofthe polymorphism previously described may have resulted from inclusion in the tests, togetlicr with pure parental types, ofplants of hybrid origin which had introgressed to such an extent that they were almost indistinguishable from the parent speeies. The implications of this arc discussed. Polymorptiisme des setmnces et germination IJ, Rdte de Vhybridation dans le polymorphisnie de ta germination deRumex crispus et de Rumex obtusifolius R^siun^. La morphologic de Rumex crispus L., de Rumex obtusifolius L. et de icurs hybrides supposes, a 6t^ examinee. L'^vidence d'une hybridation introgressive s'est manifestic, particulierement avec Ic ritrocroiaemcnt sur H. crispus. La germination des sentences dc plantes dans une population m^Iang^e varia considerablement mais, quand on les rapporta, quant a ieur degri d'hybridation, aux plantes parentalts, les espf-ces purent etre partiellement classics en fonction de leur comportement gcrminatif. Une pariie du polymorphisme prteddemment decrit pcut resulter de la presence dans les experiences, avec Ies types parentaux purs, dc plantes d'origine hybride provenant d'une introgression tellemcnt poussde qu'il est a peu pres impossible dc UTS distinguor des cspctes parentales. Les consequences de ces faits sont discutt^es. Samenpotymorptiismus und Keimung II. Die Bedeutung der Hybridisation beim Keimungsfwlymorphismus vonRumex crispus und Rumex obtusifolius Zusammeiifassung. Die Morphologie von Rumex crispus L., R. obtusifolius L. und mutmasslichcr Hybriden wurde untersucht. Es ergaben sich vor allcni bri Rlickkreuzung mit R. crispus Anhaltspunkte fur eine introgressive Hybridbation. Die Samenkeimung variierte bei Pfianzen von Mischpopulationen stark. Wurde sie fur die Elternpflanzen jedoch gegen den Hybridindcx aufgetragen, so konnten die Arten bezuglich ihres Keimvcrhaltens teilweise getrennl werden. Der fruhcr beschriebcne Polymorphism us mag teilweise daher geriihrt haben, dass bei den Tests ausscr den reincn Elterntypen auch von Hybriden abstammende Pflanzen verwendet wurden. die so starke Introgression aufwiesen, dass sie von den EI ternarten kaum noch zu unterscheiden waren. Die Bedeutung dessen wird diskutiert.

show abstract

Section: Introductionmentioning

confidence: 99%

SEED POLYMORPHISM AND GERMINATION II. THE ROLE OF HYBRIDIZATION IN THE GERMINATION POLYMORPHISM OF RUMEX CRISPUS AND R. OBTUSIFOLIUS

Williams

1971

Weed Research

View full text Add to dashboard Cite

show abstract

“…Thus" free central placentation" in the Primulaceae is a step in advance of the "free marginal placentation" (as it has been termed by Moss, 1920) in the Caryophyllaceae, because in the former the fused margins are free from the ovary wall at their separation from the receptacle, whereas in the latter they break away during the development of the gynaeceum; but, in spite of this difference, in actual composition the two cases are parallel and the term "free marginal placentation" is as applicable to the Primulaceae as to the Caryophyllaceae.…”

mentioning

confidence: 99%

Studies in Floral Anatomy. Iii. An Interpretation of the Gynaeceum in the Primulaceae

Dickson¹

1936

American J of Botany

View full text Add to dashboard Cite

“…The terrestrial forms have been called forma or var. terrestris by various authors and have even been illustrated (Moss, 1920) ; but my simple experiments demonstrate that such terrestrial forms are merely temporary states brought about by a change from a watery to an aerial existence. elongated, dark green.…”

mentioning

confidence: 68%

Diversity of the Reaction to Submergence in the Batrachian Ranunculi.

Butcher¹

1940

Proceedings of the Linnean Society of London

View full text Add to dashboard Cite

The Cambridge British flora /

Cited by 19 publications

References 0 publications

SEED POLYMORPHISM AND GERMINATION II. THE ROLE OF HYBRIDIZATION IN THE GERMINATION POLYMORPHISM OF RUMEX CRISPUS AND R. OBTUSIFOLIUS

SEED POLYMORPHISM AND GERMINATION II. THE ROLE OF HYBRIDIZATION IN THE GERMINATION POLYMORPHISM OF RUMEX CRISPUS AND R. OBTUSIFOLIUS

Studies in Floral Anatomy. Iii. An Interpretation of the Gynaeceum in the Primulaceae

Diversity of the Reaction to Submergence in the Batrachian Ranunculi.

Contact Info

Product

Resources

About