Hibbertia prostrata cf. Hibbertia fasciculata, s.l, s.s. and var. prostrata – In the context of Vic. .– for what iNat 'taxonomy' is worth.

English language paraphrases from the original species descriptions publications – of the differences, in their authors' terms :

Hibbertia fasciculata R.Br. ex DC. (1818)
• mature leaves glabrous,
• stems erect and branching, hairy,
• styles subdiverging
https://www.biodiversitylibrary.org/page/41046603
.

Hibbertia prostrata Hook. (1834)
• mature leaves hairy,
• stems decumbent–procumbent, hairy,
• single style (apparently – was thought and thought a single carpel, – at the time of description).
https://www.biodiversitylibrary.org/page/796127
.
Hibbertia fasciculata var. prostrata (Hook.) Hook.f. (1860)
https://www.biodiversitylibrary.org/page/28465113
.

In this context of Vic. .– for what iNat 'taxonomy' is worth.

I'm not surprised people have confusion about this, both professional botanists and citizen scientists into plants (amateurs).

Different concepts of the taxa: Hibbertia fasciculata and Hibbertia prostrata,
here especially Hibbertia fasciculata var. prostrata, and other infra-specific taxa, are used by each of the:
• Australian Plant Name Index (APNI) – Australian Plant Name Census (APC).
• Flora of Vic. online VicFlora
• Tasmanian herbarium
• Flora of NSW
• iNaturalist volunteer 'curated' 'taxonomy'
• POWO
• etcetera .

References:

• Flora of Vic. online VicFlora:
Hibbertia fasciculata var. prostrata page, quotation: "

The anthers are longer, flowers larger and habit more robust than in the type variety, Hibbertia fasciculata var. fasciculata, which is restricted to New South Wales. Despite the varietal epithet ('prostrata'), the plant is rarely, if ever, truly prostrate in Victoria.

" .

Quotation of the Synonymy (web page tab): "

Synonyms
Hibbertia prostrata Hook.

".
https://vicflora.rbg.vic.gov.au/flora/taxon/2737c588-39b4-4ac4-ba31-579d464cef75
.

• Australian Plant Name Index (APNI) and Australian Plant Name Census (APC):
quotation: "

APC Comment: Treated as Hibbertia fasciculata var. prostrata in Vic, and as Hibbertia prostrata in Tas.
"

https://biodiversity.org.au/nsl/services/search/names?product=APNI&tree.id=&name=Hibbertia+fasciculata&inc._scientific=&inc.scientific=on&inc._cultivar=&inc._other=&max=100&display=&search=true
.

VicFlora conferred with iNat, spelling it out about the taxa concepts:

Hibbertia fasciculata var. prostrata in the sense of VicFlora (taxon concept)
has equivalence to Hibbertia prostrata in the sense of iNat's species 'taxon concept'.

Hibbertia fasciculata var. fasciculata in the sense of VicFlora (taxon concept – and only occurs in NSW and Qld)
has equivalence to Hibbertia fasciculata in the sense of iNat's species 'taxon concept', and only occurs in NSW and Qld.

Hibbertia fasciculata var. prostrata has no equivalence to Hibbertia fasciculata var. fasciculata (in any accurate botanical information).

• The taxon concept of Hibbertia prostrata has no equivalence to Hibbertia fasciculata types' specimens' based narrow sense taxon concept (in any accurate botanical information).

Hibbertia fasciculata types' specimens' based narrow sense taxon concept
differs from Hibbertia fasciculata types' specimens' based broad sense taxon concept.

Hibbertia fasciculata var. prostrata and Hibbertia prostrata mutually equivalent in types' specimens' based taxon concept,
do not have identity equivalence to Hibbertia fasciculata types' specimens' based broad sense taxon concept and again saying,
also do not have equivalence to Hibbertia fasciculata types' specimens' based narrow sense taxon concept.
.
Furthermore according to POWO recently updated more:

• → https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:317036-1

• → https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:316951-1
.
https://inaturalist.ala.org.au/journal/stewartj-53_2014-/84157-hibbertia-prostrata-cf-hibbertia-fasciculata-s-l-s-s-and-var-prostrata-in-the-context-of-vic-for-what-inat-taxonomy-is-worth
.

Posted on September 6, 2023 12:17 PM by stewartj-54_2014- stewartj-54_2014-

Comments

Furthermore:
POWO recognises Hibbertia prostrata now since about a year ago.
Link: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:317036-1 .
Quotation: "

POWO follows these authorities in accepting this name:
de Salas, Miguel F. [@mftasp ], Baker, M. L. (2022)
A Census of the Vascular Plants of Tasmania, including Macquarie Island: 1-161.
Tasmanian Herbarium, Tasmanian Museum and Art Gallery, Hobart.
https://flora.tmag.tas.gov.au/resources/census.

" .

Posted by stewartj-54_2014- 9 months ago

"
Personally so familiar species of plants to me, over 35+ years since 1988, including hundreds and thousands of hours of hand weeding post fire regeneration sites since 1990 intimately weeding around tiny seedlings of this species.
Hence i can confirm this identification without any fertile material based on my so extensive experience of this foliage.
"

Posted by stewartj-54_2014- 9 months ago

My earlier comments detailed information:
https://inaturalist.ala.org.au/observations/95122075 .

Posted by stewartj-54_2014- 9 months ago

Quotation of text for copying–pasting: "

Not Hibbertia fasciculata nor Hibbertia prostrata.

In the group of Hibbertia species inclusive of Hibbertia riparia.
" .

Posted by stewartj-54_2014- 9 months ago

Quotations: "

(2) The World Checklist of Vascular Plants (WCVP) can be traced back to when Rafaël Govaerts started to work on the World Checklist of Seed Plants in 1988, and from 1994 at the Royal Botanic Gardens, Kew. This dataset was published online in 1995 as the World Checklist of Selected Plant Families (WCSP). With increasing coverage of all plant families, including pteridophytes, WCSP became WCVP in 2016 (Govaerts et al., 2021). The data from WCVP are used to feed Plants Of The World Online (POWO, https://powo.science.kew.org), a website designed to retrieve information on individual plant species and their distributions (The Royal Botanic Gardens, Kew, 2022).

"

"

It is striking, how one of the foundations of data-driven plant ecology and biodiversity science – taxonomic name resolution – has largely relied on the efforts of a few dedicated individuals. Furthermore, there is no comprehensive information on potential differences, and therefore, on the consequences of choosing one list over the other for downstream data analyses, development of related tools or other databases (Grenié et al., 2023). Additionally, the question remains, if and how the work invested in these four different resources may be brought together, acknowledging the efforts of every individual involved, creating synergy in terms of cross-checking, replacing outdated or missing information, and sustaining the legacy of these checklists into the future.

"
.

"

While the results presented here can objectively be evaluated, it is important to remember the following two aspects: (1) from neither of our analyses (the Meliaceae use case cannot be assumed representative for all vascular plants), we can judge the taxonomic quality of the checklists. Apart from being subjective to some extent, this would need taxonomic experts to review the differences found across lists, an endeavour beyond the scope of this study. (2) There are different approaches, or even philosophies, behind each list's assembly and development. In terms of up-to-dateness, the checklists mainly curated by single individuals have an advantage compared with the community approach involving groups of taxonomic experts for specific groups. Also, decisions on changes in functionality and design are easier and faster with fewer individuals involved. The community approach, however, ensures best available knowledge is used in the revision of individual groups, and the results are likely accepted as authoritative by the scientific community. In the long run, the community approach may prove more sustainable, as it does not depend on the persistence of individuals and is more consensus-based. The community approach is followed by WFO, and by WCVP to a much lesser extent, being curated by Rafaël Govaerts liaising with taxonomists from around the world. LCVP and WP receive help for specific tasks, but are to a large extent dependent on the individual work of Martin Freiberg and Michael Hassler, respectively. Together, the community vs individual approach, and the decisions made during list development, account for the majority of the differences seen across checklists throughout this work: whether taxonomic research has been integrated or not, different conclusions drawn from taxonomic revisions, and different decisions regarding the inclusion or exclusion of problematic taxon names. While the other lists have arrived at a state of ‘maturity’, WFO is still explicitly work in progress. Limitations of the underlying software used to manage the WFO database restricted progress in updating the outdated classification derived from TPL and the incorporation of new data in the past. A new online software system is now being used, easing incorporation of data updates on a regular basis.

Considering the long outdated TPL, we show its use should be abandoned. The use of any one of the four checklists should be done with care and understanding. Although our name matching use case showed a high agreement across lists, when working in particular regions or with specific taxonomic groups, differences across checklists may be substantial.

"
.
"

We acknowledge that the existence of the four global checklists may be confusing to users, but many of the possibilities for improvement shown in this work were only revealed because these several checklists exist. The group of authors of this study, comprising taxonomic experts including authors and curators of the four reference lists, but also of representatives from user groups in the field of functional biodiversity research, biogeography and macroecology, are working on establishing a workflow to facilitate cross-talking between the four checklists. We see the current activity as a first explorative step toward a future integrated system.

"
.

Posted by stewartj-54_2014- 9 months ago

Quotations continued: "

Experiences and lessons learned from this study are the following: exploring and harmonizing the datasets for comparative analysis leads to the detection of errors (e.g. wrong encoding, special characters in names, missing authors, and duplicate name–author combinations); matching names across datasets allows for the incorporation of new information that was previously not included in some checklists (e.g. adding geographical information to LCVP and WFO, adding IPNI links to LCVP and WP); and it creates self-awareness of the strengths and weaknesses of the different approaches and products that help us to improve and to engage in targeted collaborations, harmonizing existing or importing missing content. At the same time, the diversity of approaches, reflecting individual interests, expertise and working styles, is embraced as a precondition to create both complementarity and synergy. In more general terms, scientific progress and quality control profits from a certain degree of redundancy and replication as a basis for testing reproducibility. This said, the outcome of the presented study is a major motivation for us to discuss roles and workflows for future collaboration.

"
.

Posted by stewartj-54_2014- 9 months ago

I first wrote this up here: https://inaturalist.ala.org.au/observations/131834322 :

Here it is for what it's worth for our reference:

Hooker, W. J. in Hooker, W. J. (ed.) (1834)
Contributions Towards a Flora of Van Dieman's Land; from collections sent by R. W. Lawrence, and Ronald Gunn, Esqrs., and by Dr. Scott.
The Journal of Botany : being a second series of the Botanical miscellany 1 : 246
https://www.biodiversitylibrary.org/page/796127

(Reference citation text researched from APNI and copied above from there with annotation of the journal's secondary title: https://id.biodiversity.org.au/name/apni/90561/api/apni-format )
.

Quotation: "

1. Hibbertia procumbens. De Cand. Prodr. v. i. p. 74.—
Dillenia procumbens. Labill. Nov. Holl. v. ii. p. 16, t. 156.
Mr. Lawrence, (n. 197, 1831.)
2. H. prostrata, n. sp. ;
foliis fasciculatis anguste linearibus subhirsutis, floribus sessilibus monogynis, caule brevi decumbente.
Mr. Lawrence, (n. 226.)—This comes very near H. pedunculata, Br. (H. corifolia, Bot. Mag. t. 2672,) and also to H. fasciculata, Br. in De Cand. Prodr. v. i. p. 14;
differing from the former in its fasciculated leaves and sessile flowers;
from the latter in the hairy leaves, procumbent stem and apparently single style.

[I re-flowed the text, including adding some new lines for readability, and thus removed the hyphens in single words that the original publication split over two lines]
".
I finish with a laugh that we well know at least nowadays that:
decumbent ≠ prostrate !!!
.

Posted by stewartj-54_2014- 9 months ago

POWO updated now as of Au eastern standard time Tue. morning 2023 Sept. 26th :
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:317036-1

.

(BTW: https://inaturalist.ala.org.au/observations/135230746 ) .

Posted by stewartj-54_2014- 8 months ago

Hibbertia fasciculata R.Br. ex DC.

Candolle, A. P. de (1817)
Regni Vegetabilis Systema Naturale 1: 428 [tax. nov.]
Type: "

Hab. in Novae-Hollandiae orâ orientali. Caley., circa Port-Jackson. R. Brown. (v.s. sp.) fl. julio.

"
https://www.biodiversitylibrary.org/page/41046603
.

https://inaturalist.ala.org.au/observations/135230746
.

From the original publication, in BHL copied and pasted OCR uncorrected text, I have now corrected (except for one unusual character I have yet to find on this computer).: "

Hibbertia fasciculata.

H. foiis lineari-subulatis glabris subfasciculatis , ramulis
subpilosis , floribus sessilibus 3-4-gynis, caule erecto.

H. fasciculata. R. Brown ! ined.
Hab. in Novæ-Hollandiæ orâ orientali. Caley., circa Port-Jackson. R. Brown. ? fl. julio.

Habitus ferè Hyperici fasciculati ; caulis erectus ramosissimus ; rami juniores pubescentes hispiduli, demùm epidermide secedente glabri ; folia lineari-subulata ferè acicularia integerrima , 5-7 lin. longa, juniora subpilosula, adulta glabra , in fasciculos laterales ramulis nempè brevissimis disposita; flores ad ramulorum apicem intra foliorum fasciculum sessiles, 5-6 lin. diam. ; sepala ovalia mucronata membranacea glabra ; petala obovata calyce paulò longiora ; stamina 11-12 ; filamenta filiforinia antheris ovatis longiora; ovaria 3-4 glabra subrotunda ; styli longi filiformes subdivergentes.
"

Posted by stewartj-54_2014- 8 months ago

English language paraphrases from the original species descriptions publications (and links to them in digitised scan form) – of the differences in their authors' terms :

Hibbertia fasciculata R.Br. ex DC. (1818)
• mature leaves glabrous,
• stems erect and branching, hairy,
• styles subdiverging
https://www.biodiversitylibrary.org/page/41046603
.

Hibbertia prostrata Hook. (1834)
• mature leaves hairy,
• stems decumbent–procumbent, hairy,
• single style (apparently – was thought and thought a single carpel, – at the time of description).
https://www.biodiversitylibrary.org/page/796127
.
Hibbertia fasciculata var. prostrata (Hook.) Hook.f. (1855 – 1860?)
https://www.biodiversitylibrary.org/page/28465113
.

Posted by stewartj-54_2014- 8 months ago

Australasian Systematic Botany Society Newsletter 34 (1983)

Notes on some Hibbertia Species
R. D. Hoogland,
Rijksherbarium, Leiden

https://asbs.org.au/newsletter/pdf/83-mar-034.pdf

The most relevant part quotation :
(I have re-flowed it and removed hyphenated words that were split across lines ): "

Hibbertia fasciculata DC. and H. prostrata Hook.
Two morphologically quite distinct and geographically segregated species currently go under the name H. fasciculata.
The species to which the name is correctly applied occurs in the coastal districts of New South Wales and southern Queensland.
The other species, for which the correct name is H. prostrata Hook., is widespread in Victoria, South Australia. and Tasmania.
In both species both prostrate and erect (often several-stemmed: fasciculate) forms occur.
...
[their synonymies follow]
...
.

"
.

Posted by stewartj-54_2014- 8 months ago

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