Flowers occur singly or in small clusters along the stiff branches.

Things, as you said, Julie, tend not to occur singly.

The flowers are white, 1-2 cm across, and occurs singly on slender stalks.

Flowers occur singly or in clusters of up to four.

The 2-3 inch pink (5-8 cm) flowers usually occur singly, but may appear in groups of 2 or 3.

Emerald doves usually occur singly, pairs or in small groups.

Like all stars, they can occur singly or in close proximity to other stars.

The fruit bodies occur singly or in small clusters.

Occurs singly on rocks or other hard surfaces where water is clean and fairly fast moving.

They occur singly or in groups of two to six eggs that are formed from a common mycelium.