Key to Loasaceae
View taxon page for Loasaceae
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Subshrub;
stamens generally 5;
stigma ± unlobed;
fruit achene 
Dry, indehiscent, 1-seeded fruit from a 1-chambered ovary, sometimes winged, often appearing to be a naked seed. A 1-seeded dry fruit derived from an inferior ovary of > 1 carpel (e.g., Asteraceae, Dipsacaceae) is sometimes called a cypsela.
,
seed 1
..... PETALONYX 1' Annual to
subshrub; stamens generally many; stigma
lobes 
1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth.
3 or 5; fruit
capsule,
seeds generally many
2. Petals fused at least at base; stamens fused to
corolla; stigma lobes and
placentas 
Structure or area to which ovules are attached in an ovary; variously shaped and positioned.
5
..... EUCNIDE 2' Petals
free; stamens inserted on
hypanthium 
Structure generally in the shape of a tube, cup, or bowl, derived from the fused lower portions of the perianth and stamens, from which these parts seem to arise, and to which the ovary wall is fused in an inferior ovary (to which the ovary wall is partially fused in a half-inferior ovary; from which the ovary is free in a superior ovary).
, not fused to corolla; stigma lobes and placentas generally 3
..... MENTZELIA
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