Extensive survey of chromosome number and karyotype indicated two major ploidy groups in Crepis, corresponding to New World and Old World species complexes
18 KB (964 words) - 20:06, 29 July 2020
while the morphological differences are slight (see esp. Abuhadra), the ploidy-level difference (2n = 40 in var. serpyllifolia vs. 2n = 20 in var. tenuior)
9 KB (818 words) - 10:08, 30 July 2020
species are found in temperate climates worldwide at tetraploid to octaploid ploidy levels, extant diploid species are concentrated in North America. The diploid
13 KB (711 words) - 15:29, 15 December 2020
self-compatible. Ludwigia octovalvis is extremely variable in morphology and ploidy level, and the entire section is in need of taxonomic revision. None. Ludwigia
5 KB (665 words) - 21:01, 7 June 2022
Arctostaphylos species and is the only one found outside of North America. Two ploidy levels are common, and populations sometimes contain both diploids and tetraploids
10 KB (1,025 words) - 13:11, 30 July 2020
Campbell et al. 1985; A. C. Dibble et al. 1998; M. B. Burgess et al., unpubl.). Ploidy levels noted for each taxon in the treatment below (2n = 2x indicates diploidy
22 KB (1,558 words) - 13:48, 30 July 2020
annual weed species complex Polygonum aviculare (Polygonaceae) in relation to ploidy level and colonizing ability. Pl. Syst. Evol. 211: 239–256. Styles, B. T
13 KB (1,114 words) - 10:09, 30 July 2020
the bracteate portion of the raceme. Occurrence of “races” with various ploidy levels is one of the reasons for variability that led to recognition of
11 KB (1,071 words) - 12:31, 30 July 2020
some of which has often been given taxonomic recognition on the basis of ploidy level, sexuality, vestiture, leaflet shape, and flower size. The phase that
8 KB (872 words) - 14:11, 30 July 2020
subspecies of Dudleya saxosa differ mostly in size of parts and in level of ploidy. None. Dudleya saxosa subsp. aloides, Dudleya saxosa subsp. collomiae, Dudleya
6 KB (589 words) - 13:01, 30 July 2020
slight and inconsistent for recognition at the specific level. In Europe, two ploidy levels are treated as subspecies, diploid A. ruta-muraria subsp. dolomiticum
8 KB (653 words) - 00:29, 30 July 2020
the two taxa can occur side by side and maintain their identities where ploidy level differs. None. None. window.propertiesFromHigherTaxa=[{"rank":"species"
6 KB (680 words) - 23:56, 29 July 2020
distributional range of the species. Because the correlation between morphology and ploidy level breaks down across the distributional range, no infraspecific taxa
7 KB (580 words) - 05:47, 30 July 2020
and polyploidy. For example, S. arctica and S. glauca each display several ploidy levels, as well as many hybrids; both species probably evolved through repeated
35 KB (4,327 words) - 12:03, 30 July 2020
supernumerary petals has spread from cultivation in northern Michigan. The ploidy level(s) of populations in the flora area have not been investigated. Darwent
6 KB (846 words) - 10:22, 30 July 2020
horticultural purposes and it may be found outside its native range. Four ploidy levels were documented across the range of var. douglasii by J. S. Mooring
8 KB (1,016 words) - 22:32, 29 July 2020
of the C. gossypina complex documented, and the cytogeography of the four ploidy levels in C. mariana described (Semple 1977; Semple et al. 1980; Semple
16 KB (980 words) - 21:51, 29 July 2020
Tetraploids appear to be the most common ploidy level, especially in the upper midwest and northern plains, with higher ploidy levels being more common southwards
11 KB (1,507 words) - 04:08, 30 July 2020
Appalachian Plateaus, Valley and Ridge, and Blue Ridge regions. All four ploidy levels occur in partially overlapping areas in Florida, but only the hexaploid
9 KB (781 words) - 21:51, 29 July 2020
intergradation. In the latter area, the taxa apparently are at different ploidy levels. None. None. "thick" is not a number.window.propertiesFromHigher
4 KB (608 words) - 20:55, 29 July 2020