Marsdenia tubulosa

[alex]

Marsdenia tubulosa

family: Apocynaceae (formerly Asclepiadaceae)

T: Mt Gower, Lord Howe Island, 1871, J.P.Fullagar; holo: MEL.

Illustration: P.S.Green, Kew Bull. 48: 310 (1993).

Habit unknown. Leaf suborbicular, 4.5 cm long (only 1 leaf on type specimen, and indistinguishable from Marsdenia rostrata). Inflorescence umbel-like, 5–10-flowered; peduncle 2.5 cm long; pedicels 4–7 mm long, glabrous. Calyx c. 1 mm long; lobes almost free, broadly ovate, minutely ciliolate. Corolla tube 4–5 mm long; lobes broadly ovate, 1–1.5 mm long, finely fimbriate. Corona lobes 2 mm long, with elongated filiform apex. Style-head slightly conical, 0.5 mm long. Fruit unknown. Fig. 82E–F.

Lord Howe Is. An endemic and scarcely known species, collected once in 1871.

This species is known only from the scrappy type specimen. The single leaf on this specimen is identical with some of those found in Marsdenia rostrata. Long overlooked; a search should be made to see if Marsdenia tubulosa might still be extant, if very rare.

This plant may now be extinct.

[Melanie]

Marsdenia tubulosa F.Muell., Fragm. 9: 71 (1875); so called because of the tubular corolla.

Hierarchical Names List Entry

T: Mt Gower, Lord Howe Island, 1871, J.P.Fullagar; holo: MEL.

Illustration: P.S.Green, Kew Bull. 48: 310 (1993).

Habit unknown. Leaf suborbicular, 4.5 cm long (only 1 leaf on type specimen, and indistinguishable from Marsdenia rostrata). Inflorescence umbel-like, 5–10-flowered; peduncle 2.5 cm long; pedicels 4–7 mm long, glabrous. Calyx c. 1 mm long; lobes almost free, broadly ovate, minutely ciliolate. Corolla tube 4–5 mm long; lobes broadly ovate, 1–1.5 mm long, finely fimbriate. Corona lobes 2 mm long, with elongated filiform apex. Style-head slightly conical, 0.5 mm long. Fruit unknown. Fig. 82E–F.

Lord Howe Is. An endemic and scarcely known species, collected once in 1871.

This species is known only from the scrappy type specimen. The single leaf on this specimen is identical with some of those found in Marsdenia rostrata. Long overlooked; a search should be made to see if Marsdenia tubulosa might still be extant, if very rare.

[koeiyabe]

Here is the already posted thread of the same species.
vanishingflora.proboards.com/thread/1312/marsdenia-tubulosa

This species is Not listed in the IUCN redlist.

Please delete this or merge into the old.

[koeiyabe]

plants.jstor.org/stable/10.5555/al.ap.specimen.mel1515823?searchUri=filter%3Dname%26so%3Dps_group_by_genus_species%2Basc%26Query%3DMarsdenia%2Btubulosa