(Vou, 11 
198 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
long, stout, creeping, rooting from the nodes, freely branching, 
the branches prostrate or ascending; internodes shorter than the 
leaves; leaves numerous, broadly oblong or oval, obtuse, 2-4 mm. 
long, 1-3 mm. wide, thick, entire, sessile by a broad base, 1- 
nerved, often with smaller leaves fascicled in the axils, pitted 
when dry; flowers few, axillary and solitary, pedicels stout, rarely 
exceeding the leaves; calyx narrowly campanulate, 4 mm. long, 
ribs and teeth green with a reddish-purple crenate lobe between, 
much distended by the mature capsule, teeth equal, short, tri- 
angular-acute; corolla broadly funnelform, 1.2-1.5 em. long, blue 
or lilae, tube paler in color, sometimes nearly white, exserted, 
expanding abruptly to a wide throat, lobes long, broad, wavy- 
margined, unequal, the lower lip pale lilae, with a yellow area 
down the throat, this densely hairy and spotted with red, palate 
prominent, partly closing the throat; stamens included, glabrous, 
the filaments enlarged at the base; style glabrous, as long as the 
throat, sometimes with a thickened knob at the base, stigma-lips 
oblong, equal; capsule included, obtuse, constricted below, de- 
hiscent along the upper suture and part way down the lower, 
placentae adherent to the apex; seeds oval, longitudinally striate. 
Distribution: common in salt marshes and muddy places in 
Australia, Tasmania, and New Zealand. 
Specimens examined: 
Australia: without date, Mueller (G, Cornell, and M). 
South Australia: Port Lincoln, without date, Schomburgh (U. 5.). 
Victoria: Point Lonsdale, Oct.-Nov., 1912, Tilden 726 (С and M); 
Upper Yarra, Feb., 1882, Walter (M); Colony of Victoria, 
Sept., Dec., 1854, Harvey (G). 
Tasmania: without date, Hooker (G). С 
New Zealand! Onehunga, North Island, without date, Kirk 124 
(G); Lake Ellesmere, South Island, without date, Kirk (M). 
27. M. orbicularis Wall. Cat. No. 3919. 1828; Benth. Seroph. 
Ind. 29. 1835; DC. Prodr. 10: 373. 1846; Hook. Fl. Brit. 
4:259. 1884. : 
Creeping, glabrous, somewhat succulent perennials, rooting 
from the nodes; stems stout, 1-2.5 dm. long; leaves petiolate, 
thick, orbicular, 2-2.5 em. wide, entire, not veined; 
