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.=

Alpine flora of the Canadian Rocky Mountains · 第 52 / 91 题