Your English writing platform
Discover LudwigExact(4)
Typical Hapalops species features were grouped to establish an overall generic level character suite.
With its Early Jurassic age and its intermediate anatomical character suite, O. pulchella emerges as an ideal candidate for a true precursor of subgenus Osmundastrum (Fig. 13a), which became established in its present form by the Late Cretaceous (Fig. 13g).
Nevertheless, the fact that this down-weighting results in a placement close to the roots, but not in the tips of sub-trees, indicates that the remaining character suite is plesiomorphic in general, thus supporting the interpretation of fossil taxa such as O. pulchella as ancestors of extant clades and possibly individual species (Figs. 8 and 9).
The main diagnostic difference among species of the A. brunneus complex is the shape of the median lobe of the male aedeagus, in particular its relative size, the degree of asymmetry in ventral view and the shape of the apex in lateral view [ 16], and it is this character suite which was primarily used to assign material to species here.
Similar(56)
These character suites help us understand the order in which the traits of the new lineage evolved and what functions they served as they evolved.
Proserpinus terlooii, P. flavofasciata and Arctonotus lucidus are all centrally located in the genus phylogeny and have rates of genetic change comparable to the rest of their congeners but rapid pronounced evolution (saltation) in specific functional character suites (host plant use, mimicry, cold weather adaptation).
Moreover, it emphasizes once again the value of investigating multiple character suites.
Osmunda pulchella and five additional Jurassic rhizome species show anatomical character suites intermediate between Osmundastrum and Osmunda.
(ii) Intermediate anatomical character suites of O. pulchella and other Jurassic osmundoid rhizomes support re-inclusion of the recently separated, monospecific Osmundastrum within Osmunda.
The other Jurassic rhizomes have plesiomorphic character suites shared with all remaining Osmunda, but lack the apomorphic states that are characteristic of the highly specialized subgenus Plenasium (Fig. 13b– e).
The significance and genetic basis of these character suites is yet to be established, but their variation has led to many reports of apparent intermediates between P. caudatum, P. e. arachnoideum and other taxa (Tryon 1941; Mickel and Beitel 1988; Ortega 1990; Mickel and Smith 2004; Schwartsburd et al. 2014).
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com