Family: Haloragaceae
Myriophyllum glomeratum
Citation:
Schindler, Pflanzenr. 23:103 (1905).
Synonymy: Not Applicable Common name: None
Description:
Annual marsh-inhabiting herb 4-6.5 cm tall; leaves dimorphic, all alternate; lower (submerged) leaves thin, linear, 5-6 (rarely 10)mm long, rarely 3-fid with lobes c. 4 mm long; upper (emergent) leaves thick, linear, c. 2.5 mm long, upwardly curved.
Plants monoecious, flowers unisexual, in fascicles of 2 or 3 in leaf axils; bracteoles white, linear to narrowly deltoid, c. 0.3 mm long; male flowers 4-merous, sessile or very shortly pedicellate; sepals 0; petals reddish, 0.8-1.1 mm long, hooded; stamens 4, opposite the sepals, anthers oblong; styles and ovary 0; female flowers 4-merous, sessile; sepals, petals and stamens 0; styles clavate, becoming reflexed; stigmas white, fimbriate; ovary cubiform, 0.4-0.5 mm long, a short collar at the apex, 4-locular.
Fruit sessile, golden or reddish-brown, cylindrical to urceolate; mericarps cylindrical, 0.8-1.2 mm long, swollen and slightly rugose in the lower third, central third smooth and tapering, upper third consisting of an oblique collar tapering to an acute point.
Published illustration:
Orchard (1986) Brunonia 8:, fig. 39.
Distribution:
|
S.Aust.: NL, SE. N.S.W.; Vic.; Tas.
|
Conservation status:
native
Flowering time: Sept. — Jan.
|
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
|
Biology:
No text
Taxonomic notes:
Closely resembles M. integrifolium, and the 2 species often grow in mixed populations. M. glomeratum is easily distinguished by its 4 stamens, fruit shape and fascicled flowers.
Author:
Not yet available
|