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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

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Parvocaulis exiguus (Solms) S.Berger, Fettweiss, Gleissberg, L.B.Liddle, U.Richt., Sawitzky & Zuccarello

Reference
Phycologia 42:559 (2003)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus upright, light green, up to 2.5 mm high, epilithic, with a short, terete stalk bearing a subapical whorl of gametangial rays. Stalk cylindrical, 300–400 µm in diameter, generally corrugated, the bands 25–40 µm thick, mostly interrupted and not forming complete rings.

Reproduction. Gametangial whorl 1.5–2.5 mm in diameter, with 5–10 rays, these basally attached but free distally, to 1 mm long, 300–400 µm broad, pod-shaped, with a tapering, sometimes slightly papillate apex, without basal protuberances. Gametangial cysts not seen.

Distribution. Known from numerous localities in the tropical Indian and Pacific oceans.