Much smaller than the preceding species. Basal leaves few on petioles less than an inch long; blades broadly ovate, ½ an inch long. Flowers on slender scapes 2—4 inches high, without any bract; sepals oblong, about ¼ of an inch long, equalling or exceeding the elliptic or oval 3-veined petals; staminodia short with 3—5 slender filaments. Throughout the Rockies at high altitudes on the gravelly borders of alpine ponds or brooks, a very diminutive species, flowering in July. SAXIFRAGACEÆ _Saxifrage Family_ Stemmed or stemless herbs with alternate or sometimes opposite or more frequently basal leaves; flowers perfect, racemose, cymose or paniculate; calyx 5-lobed or parted; petals 4 or 5, white, yellow or greenish or sometimes rose-coloured; stamens equal or twice the number of the petals; carpels 1—several, distinct or united. Placentæ parietal. Flowers solitary and axillary; sepals 4; stamens 4—8. =Chrysosplenium.= Flowers in more or less elongated racemes. Flowers with 2 or 3 equal carpels. Flower-stalk axial from a bulbiferous rootstock. =Lithophragma.= Flower-stalk a lateral shoot from a stout scaly rootstock. Inflorescence racemose. Petals pinnately cut or pinnatifid. Base of the calyx campanulate deeper than the length of the sepals. =Tellima.= Base of the calyx saucer-shaped, shallower than the length of the sepals. Ovary more than half superior; disc inconspicuous. =Mitella.= Ovary wholly inferior, covered with the prominent disc. =Pectiantia.= Inflorescence paniculate. =Heuchera.= Flowers with 2 very unequal carpels. =Tiarella.=