identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
2E7A8796CC55CA5DDFD3B5B5FE1BF852.text	2E7A8796CC55CA5DDFD3B5B5FE1BF852.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acetabularia monodisca (Deshaprema & Dissanayake 2025) Deshaprema & Dissanayake 2025	<div><p>Acetabularia monodisca (Børgesen) Deshaprema &amp; Dissanayake, comb. et stat. nov. (Figures 3 &amp; 4)</p><p>Basionym:— Acetabularia crenulata var. monodisca, Børgesen (1936; 65)</p><p>Type:— SRI LANKA. Jaffna District, Kankasanthurai, April 1929, E. C. T. Holsinger C-A-100359 (holotype C!)</p><p>Description:— Thallus 23.5–52.4 mm tall, calcified, attached to a substratum, forming dense tufts. Peduncle straight, cylindrical, slightly nodulate, 20.6–49.4 mm long, two verticils of sterile hairs or two rings of hair scars visible on peduncles below the disc of the gametangial rays, each peduncle bearing a light-green terminal disc. Disc rigid, less caliciform to planar in shape when mature, 7.3–13.5 mm in diameter, 3.5–4.9 mm in depth, formed by the lateral fusion of 59–86 gametangial rays. Gametangial rays long, cuneiform, and 3.0– 6.5 mm long with an apiculate apex. The apex of upper corona segments emarginate to round with each segment bearing two hairs. The apex of lower corona segments emarginate. Each fertile gametangial ray bearing 100–180 globose to spherical cysts.</p><p>Distribution and ecology:—Restricted to the shallow-intertidal sea next to Mathagal Beach, Kankasanthurai, Jaffna District, Sri Lanka (Figures 5 &amp; 6).</p><p>Etymology:— ‘Single disc’ (Greek mono =single, disca =disc). The specific epithet is based on the previous variety epithet ( var. monodisca).</p><p>Additional specimens examined:— SRI LANKA. Jaffna District, Kankasanthurai, April 1929, E. C. T. Holsinger, C-A-100360 (isotype C!) ; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=79.93961&amp;materialsCitation.latitude=9.7843895" title="Search Plazi for locations around (long 79.93961/lat 9.7843895)">Jaffna District</a>, Kankesanturai, 9 o 47’3.8”N, 79 o 56’22.6”E, 25 May 2023, Supun Deshaprema, WCSG / AL/001 (PDA!) ; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=79.94158&amp;materialsCitation.latitude=9.785195" title="Search Plazi for locations around (long 79.94158/lat 9.785195)">Jaffna District</a>, Kankesanturai, 9°47'6.7"N, 79°56'29.7"E, 25 May 2023, Supun Deshaprema, WCSG / AL/002 (PDA!) ; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=79.94278&amp;materialsCitation.latitude=9.78625" title="Search Plazi for locations around (long 79.94278/lat 9.78625)">Jaffna District</a>, Kankesanturai, 9°47'10.5"N, 79°56'34.0"E, 25 May 2023, Supun Deshaprema, WCSG / AL/005 (PDA!) ; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=79.94011&amp;materialsCitation.latitude=9.784584" title="Search Plazi for locations around (long 79.94011/lat 9.784584)">Jaffna District</a>, Kankesanturai, 9°47'4.5"N, 79°56'24.4"E, 25 May 2023, Supun Deshaprema, WCSG / AL/007 (PDA!)</p></div>	https://treatment.plazi.org/id/2E7A8796CC55CA5DDFD3B5B5FE1BF852	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Deshaprema, Supun;Dissanayake, Sachini	Deshaprema, Supun, Dissanayake, Sachini (2025): Acetabularia monodisca, comb. et stat. nov. (Polyphysaceae): A taxonomic reclassification of an umbrella alga from Jaffna, Sri Lanka, with a key to Acetabularia species in the Indian Subcontinent. Phytotaxa 693 (3): 245-254, DOI: 10.11646/phytotaxa.693.3.5, URL: https://doi.org/10.11646/phytotaxa.693.3.5
