A miscellaneous group, embracing plants formerly included in Caryophyllaceae and Portulacaceae; differing, however, from true representatives of these in having partitions in the ovary. Petals wanting in our genus.
M. vertieillata, L. A prostrate much-branched herb, growing in patches. Leaves spathulate, apparently verti-cillate. Flowers on long axillary pedicels, clustered into a sort of umbel. Sepals 5, white inside. Petals none. Stamens mostly 3. Styles 3. Pod 3-celled, 3-valved, loculi-cidal. the partitions breaking away from the many-seeded axis. - Mostly in south-western Ontario.