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