LENTIBULARIACEAE, Bladderwort Family

Herbs, aquatic or of wet soil; stems floating or prostrate on soil in shallow water, or subterranean in wet soil;leaves alternate, dissected or simple, some or all usually bearing tiny bladders; flowers hypogyno \us, perfect. in racemes or solitary; calyx deeply 2·lipped; corolla yellow, 2-lipped, of 5 united petals, spurred at base, with prominent palate. upper lip entire or 2-lobed, lower lip entire or 3-lobed: stamens 2, on corolla tube; carpels 2, united; style short or none; stigma 2-lobed; ovary 1-Ioculed; placenta central, free.