VASCULAR PLANTS OF UPPER NEWPORT BAY
CALLITRICHACEAE
Mostly aquatic herbs, with very slender tufted stems. Leaves opposite, entire, linear to obovate, estipulate. Flowers small, axillary, perfect or imperfect, with or without 2 saclike bracts. Perianth none. Stamen 1, the filament elongate; anthers cordate, 4-loculed, dehiscent by longitudinal slits. Pistillate flower a single 4-locular ovary of 2 carpels; styles filiform, distinct. Fruit nutlike, compressed, 4-lobed, separating into 4 1-seeded mericarps; seeds pendulous; endosperm present. One genus, with about 20 species, widely distributed. (Munz, Flora So. Calif. 321).

Upper Newport Bay species within the family:
WATER-STARWORT FAMILY

(PLANTAGINACEAE)
(PLAINTAIN FAMILY)
Callitriche marginata. #