Salvinia ×molesta D.S.Mitch.

Caption:

Details

Name scientific

Salvinia ×molesta D.S.Mitch., Brit. Fern Gaz. 10: 251 (1972)

Preferred name

Salvinia ×molesta D.S.Mitch.

Taxonomy reference

de la Sota, E.R. 2001: Sobre el tipo de Salvinia adnata (Salviniaceae, Pteridophyta). Boletín de la Sociedad Argentina de Botánica 36: 125–129.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Exotic

Wild

New Zealand

Political Region

Nomenclature

Authors

D.S.Mitch.

Original authors

D.S.Mitch.

Publication place

Mitchell, D.S. 1972: The Kariba weed: Salvinia molesta. British Fern Gazette 10: 251–252.

Year published

1972

Publication page

251

Not a synonym of S. modesta: S. adnata should be treated as a name of uncertain application. The name S. molesta, which is well-established in the literature, should continue to be used for this economically important, highly weedy, and widely known fern. Moran, R.C.; Smith, A.R. 1999: Salvinia adnata Desv. versus S. molesta D.S.Mitch. American Fern Journal 89(4): 268–269.

Nomenclatural code

ICN

Basionym

Salvinia ×molesta D.S.Mitch.

Taxonomic rank

species

Canonical form

Salvinia ×molesta

Etymology

From the Latin molestus (troublesome), a reference to its weedy and invasive nature.

Typification

Holotype: Ruziruhuru River inlet, Lake Kariba, Rhodesia [Zimbabwe], D.S. Mitchell 1330, SRGH.

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Polypodiopsida

Order

Salviniales

Family

Salviniaceae

Genus

Salvinia

Species

×molesta

Vernacular names

Language of use: English

Descriptions

Webb, C.J.; Sykes, W.R.; Garnock-Jones, P.J. 1988: Flora of New Zealand. Vol. IV. Naturalised Pteridophytes, Gymnosperms, Dicotyledons. Botany Division DSIR, Christchurch.

Salvinia ×molesta D.S.Mitch.

Description

Aquatic fern forming dense floating mats with lvs often tightly overlapping. Floating lvs elliptic to broadly elliptic, entire, folded, to 2.5 × 2 cm, light or brownish green, becoming somewhat darker on margins, densely covered on upper surface in papillae bearing groups of 2 or 4 uniseriate hairs united at their distal ends. Papillae to 3 mm long. Sporocarps in long straight secund chains, hairy, c. 1 mm diam., containing mostly empty sporangia.