LOASA FAMILY. _Loasaceae._

Not a very large family, all but one natives of America; herbs, armed

with hooked, stinging or sticky hairs; without stipules; the flowers

perfect, with five sepals and five to ten petals; the stamens numerous,

with threadlike filaments, the outer ones sometimes petal-like,

inserted with the petals on the throat of the calyx and usually

arranged in clusters opposite the petals; the ovary inferior, with a

threadlike style; the capsule crowned with the calyx-lobes.

There are many kinds of Mentzelia, all western, often with white

shining stems and alternate leaves; the calyx cylindrical or

top-shaped, with five lobes; the petals five or ten; the styles three,

somewhat united. The barbed hairs which clothe the stems and leaves

make the plant stick to whatever it touches, probably helping to

distribute the seeds, hence the common name Stick-leaf.

[Sidenote: =Blazing Star=

_Mentzèlia laevicàulis_

=Yellow

Summer, autumn

West, except Wash. and Ariz.=]

A stout, branching biennial, two to over three feet tall, with shining

white stems, almost smooth, long, rather narrow, wavy-toothed leaves

and enormous flowers, in clusters of two or three at the ends of the

branches and opening only in bright sunlight. They are from three

to five inches across, with five, broad, light yellow petals and

quantities of very long stamens, making a beautiful center. Five of

the stamens have broadened filaments, resembling narrow petals, the

style is three-cleft, and the capsule is oblong, containing many flat,

winged seeds. These plants usually grow in dry stream-beds and are not

rare, but through various accidents I have never been able to secure a

drawing of either this or the next.

[Illustration: Blue Violet--V. adunca var. longipes.

Field Book of Western Wild Flowers · 第 172 / 319 题