Abstract
Further study of the two geographic lineages within Radula novae-hollandiae sens. lat. have resulted in the detection of morphological differences among individuals from the Queensland Wet Tropics, and those from New South Wales. Individuals from the Wet Tropics have perianths that are shorter at maturity (1.6-2.0 v. 3.8-4.4 mm), leaf lobes that usually bear numerous marginal gemmae, and leaf-lobules that are smaller and more quadrate. The morphological differences, particularly in perianth length, were not fully appreciated previously and provide evidence supporting the recognition of the Queensland Wet Tropics lineage as a distinct and new species, Radula tonitrua, which is here described. The degree of phylogenetic divergence and fixed molecular difference between R. tonitrua and R. novae-hollandiae, are comparable with the separation observed between R. ocellata and R. pulchella, another species pair exhibiting the same geographic disjunction.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Queensland Wet Tropics plants had shorter mature perianths than New South Wales plants.
Verbatim
e0“Individuals from the Wet Tropics have perianths that are shorter at maturity (1.6-2.0 v. 3.8-4.4 mm)”
e1“Radula novae-hollandiae sens. lat.”
Claim · model-written summary
Queensland Wet Tropics plants usually bore numerous marginal gemmae on leaf lobes.
- Taxon
- Radula novae-hollandiaeRadula novae-hollandiaee1
- Organ / stage
- leaf lobese0
- Outcome
- numerous marginal gemmaee0
Verbatim
e0“leaf lobes that usually bear numerous marginal gemmae”
e1“Radula novae-hollandiae sens. lat.”
Claim · model-written summary
Queensland Wet Tropics plants had smaller, more quadrate leaf lobules.
- Taxon
- Radula novae-hollandiaeRadula novae-hollandiaee1
- Outcome
- leaf-lobulese0
- Direction
- smallere0
Verbatim
e0“leaf-lobules that are smaller and more quadrate”
e1“Radula novae-hollandiae sens. lat.”
Claim · model-written summary
The Queensland lineage was recognized and described as the new species Radula tonitrua.
Verbatim
e0“recognition of the Queensland Wet Tropics lineage as a distinct and new species, Radula tonitrua, which is here described”
Claim · model-written summary
Phylogenetic divergence between R. tonitrua and R. novae-hollandiae was comparable to the divergence between R. ocellata and R. pulchella.
Verbatim
e0“The degree of phylogenetic divergence and fixed molecular difference between R. tonitrua and R. novae-hollandiae, are comparable with the separation observed between R. ocellata and R. pulchella”