Endoscope
发表于 2025-3-26 23:47:23
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扔掉掐死你
发表于 2025-3-27 03:02:59
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Diastole
发表于 2025-3-27 07:00:26
Three intercontinental disjunctions in , subfamily ,: evidence from chloroplast DNA,. All American representatives of the subfamily possess distinctive morphological features. This might be the result of Tertiary and Quaternary climatic oscillations leading to severe bottleneck situations in ancient N American populations.
冒失
发表于 2025-3-27 12:23:06
Rapid radiation of North American desert genera of the ,: Evidence from restriction site mapping of radiation event caused by major climatic changes in the past. Poor phylogenetic resolution seems to reflect biological reality and not to be an experimental artifact. There is also evidence for accelerated morphological evolution under arid climatic conditions.
冰河期
发表于 2025-3-27 13:41:58
Phylogenetic relationships of the Lardizabalaceae and Sargentodoxaceae: Chloroplast and nuclear DNA’ . (., ., ., ., and .) characterized by laminar placentation, is well-supported as a monophyletic group. A subset of this clade consisting of three Asian genera (., ., and .) is also a well-supported monophyletic group.
辞职
发表于 2025-3-27 19:51:38
Epicuticular wax ultrastructure and classification of ,,roduce the . type tubules similar to .. This suggests a reconsideration of the position of these families and in particular for . a close relation to the . also based on other chemical data. Within the polyphyletic . the “lower” families ., ., and certain genera of . are also characterized by . type waxes.
不爱防注射
发表于 2025-3-28 00:37:12
The phylogeny of the , sensu lato: morphological, geographical and ecological implications,ts of the family generic diversification preceded the break-up of the northern continents, and (3) that aridification of the environment was a major stimulus for both diversification and morphological divergence in the family.
majestic
发表于 2025-3-28 02:43:29
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Ancillary
发表于 2025-3-28 06:28:38
Wood anatomy of ,: a summary, families can, however, be ranked from primitive to specialized in terms of vessel element length and “F/V ratio” (length of imperforate tracheary elements divided by length of vessel elements) as well as in terms of morphology of imperforate tracheary elements. . — especially the genus . — rank as
嘲笑
发表于 2025-3-28 11:47:36
Sieve-element plastids, phloem proteins, and the evolution of the ,,iameter of the sieve-element plastids from stem phloem is with 1.62 μm rather large, both compared to other superorders and to the dicotyledon average. Among the five families recognized in the . (incl. .), . and . contain the largest average diameters (above 1.9 μm) while those of ., ., and . are a