Dischidia pectenoides or D. vidalii?

[Derrick]

Correct name Dischidia pectenoides H. Pearson published in the Journal of the Linnean Society, Botany, vol.35, p377, (1902). With a Type Description in Latin as was then required.

http://www.biodiversitylibrary.org/page/335444#page/392/mode/1up

Synonym, Dischidia vidalii Becc. (Odoardo Beccari) a name used in Malesia Raccolta 2, pp272/3, (1886)

with no type description, thus it is nom nud (a naked name.) http://www.biodiversitylibrary.org/item/151443#page/408/mode/1up    See bottom of p272.

More background, An enumeration of Philippine flowering plants, vol.3, p343, (1923.) (Enum. Philipp. Fl.) or sometimes (EPFP.)

 http://www.biodiversitylibrary.org/page/33502741#page/355/mode/1up

Journal of Botany British and Foreign, vol.40, p270, (1902).

http://www.biodiversitylibrary.org/page/35243293#page/343/mode/1up

Journal Linnean Soc. Vol 35, p376, (1901/1904)

http://www.biodiversitylibrary.org/page/335444#page/391/mode/1up.

With hints of possibly more saccate species.

Description. Domatia leaves are particularly inflated and again of the double cavity form seen in D. complex and it has attractive red flowers, probably a rarity in this little known genus where most flowers appear to be white.

Habitat/Range. The Zambales Range and Bataan, Rizal, and Laguna Provinces on Luzon Island, Northern Philippines, where it frequently grows on the dead stems of climbing bamboo.

Also frequently spelt pectinoides which is WRONG.

Edit. Furthermore, I can find no illustration in Malesia 2 that could be accepted as a leptotype.

[Derrick]

Here Vidal (Sebastián Vidal y Soler) merely mentions a Dischidia sp., in  Revision de plantas vasculares Filipinas: memoria elevada al Escmo. Sr. Ministro de Ultramar.

http://www.biodiversitylibrary.org/item/51599#page/198/mode/1up

Here only a key to genera.

http://www.biodiversitylibrary.org/item/56423#page/212/mode/1up

Edit. And of course vidalii being an honorific was probably used by someone other than Vidal (and in the example where Odoardo Beccari used it on page 272 above).

[Derrick]

United States Department of Agriculture
Agricultural Research Service, Beltsville Area
Germplasm Resources Information Network (GRIN)

"Dischidia vidalii Becc., nom. nud. Synonym of Dischidia pectenoides H. Pearson

Genus: Dischidia
Family: Apocynaceae
Nomen number: 14405
Place of publication: Malesia 2:272. in nota. 1886, nom. nud.
Comment: lack of valid publication by Beccari verified from original literature, as Beccari provided no description or diagnosis, nor was one provided by Vidal and the cited plate lacked analysis
Name verified on: 18-Feb-2014 by ARS Systematic Botanists. Last updated: 18-Feb-2014
No species priority site assigned."

http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?14405

I rest my case.

[Derrick]

Ascribed to D. vidalii Hort. Not D. vidalii Becc. by Livschultz. 

http://plants.jstor.org/stable/10.5555/al.ap.specimen.k000910996

http://plants.jstor.org/stable/10.5555/al.ap.specimen.k000910995

 

 

[Robert Pulvirenti]

This is the plant I know as Dischidia pectenoides.

It is a small species. this plant is in a 100mm half pot.

 

This closer shot better shows the standard leaves compared to the modified hollow balloon type leaf which is normally inhabited by ants.

You can also see the colour of the flowers, new flower buds forming and also the almost fully developed seed pods.

 

A better view of the seed pods.

Germination of surface sown seed of this species is easy and very fast a about 3 days, but subsequent growth is slow.

[jeff]

Bonjour ROBERT

 

I have 2 flower section  to  D.pectinoides

 

 

 

the second seem to me good

 

can you help me

 

JEFF

[Derrick]

Correct name Dischidia pectenoides H. Pearson published in the Journal of the Linnean Society, Botany, vol.35, p377, (1902.)

http://www.biodiversitylibrary.org/page/335444#page/392/mode/1up

[Derrick]

RE: Is Dischidia pectenoides or D. vidalii the correct name .

I asked the editors of the International Plant Name Index being the accepted world authority to adjudicate on this question. Due to a footnote of Beccari's in Malesia 2, p272/3 which reads.  "Che a me sembra una specie ascidifera ben distincta, per la forma della foglie ramenta molto quella di Zamboanga."  Essentially it refers to distinct ramenta on the species leaves, and although a minor detail, it may be considered sufficient to warrant Beccari's name having precedence. Obvously it is a debatable argument so IPNI refered this question to their full editing panel. Ramenta are thin brownish chaffy scales upon the leaves or young shoots of some plants, especially upon the petioles and leaves of ferns. http://www.ipni.org/

This is IPNI's considered opinion.

From	IPNI Feedback <ipnifeedback@kew.org>
To	IPNI Feedback <ipnifeedback@kew.org>, David Goyder <D.Goyder@kew.org>, derrick.rowe@slingshot.co.nz <derrick.rowe@slingshot.co.nz>
Copy	Herbarium <herbarium@kew.org>, Kanchi Gandhi (Contact) <gandhi@oeb.harvard.edu>, Kirsten Cowley (Contact) <kirsten.cowley@csiro.au>, Nicky Nicolson <n.nicolson@kew.org>
Date	Today 02:00

Good afternoon, Having discussed this at our group meeting, we have agreed - as David mentioned in his email - that the description of the leaves, although minimal, is valid.  We therefore consider Dischidia vidalii Becc.  a valid name.
With best wishes,
The IPNI editors - Plant & Fungal Names, Biodiversity Informatics & Spatial Analysis, Royal Botanic Gardens, Kew TW9 3DS, United Kingdom
Tel. 020 8332 5223, Email: ipnifeedback@kew.org