Herbs, perennial, (carnivorous), rhizomatous, sometimes stoloniferous, scapose; rhizomes with alternate deltate scales 1-2 cm. Stems absent. Leaves (henceforth referred to as pitchers) rosette-forming, alternate, developing into hollow tubes; stipules absent; petiole clasping, dilated; blade green, yellow-green, reddish, or purplish, often distinctly red, pink, or green, purple-veined or -blotched, sometimes white-areolate, winged laterally along its length, usually prominently costate, surfaces of pitcher and hood glabrous or hairy and minutely glandular; orifice with thickened, revolute rim; hoods variously arranged in association with orifices. Phyllodia present or absent. Scapes 1 or 2, bracteate, glabrous. Inflorescences: solitary flowers, arising from growing tip of rhizome. Flowers bisexual, nodding; perianth and androecium hypogynous; hypanthium absent; sepals 5; petals 5, distinct; stamens 15 or 50-100, distinct or slightly fascicled; anthers laterally dehiscent; pistils 1, 5-carpellate; ovary superior, 5-locular; placentation axile to parietal; ovules anatropous, bitegmic, tenuinucellate; styles 1, terminal; stigmas 5, distal. Fruits capsular, globose to ovoid or obconic, shallowly 5- or 10-lobed, tuberculate, dehiscence loculicidal. Seeds 400-1000, tan, irregularly clavate to reniform-obovate; embryo straight; endosperm copious, oily. Fls perfect; sep 5; pet 5 or none; stamens (10–) numerous, with short filaments and introrse anthers; ovary (3)5-locular, with numerous ovules on axile (or distally intruded-parietal) placentas; style 2, subentire or branched above; fr a loculicidal capsule; seeds numerous, small, with a minute, dicotyledonous embryo and copious endosperm; perennial, insectivorous herbs with hollow, pitcher- shaped lvs and large, nodding fls solitary on a scape or in few-fld racemes. 3/15, New World. SELECTED REFERENCES Bayer, R. J. et al. 1996. Phylogenetic relationships in Sarraceniaceae based on rbcL and ITS sequences. Syst. Bot. 21: 121-134. Bell, C. R. 1949. A cytotaxonomic study of the Sarraceniaceae of North America. J. Elisha Mitchell Sci. Soc. 65: 137-166. DeBuhr, L. E. 1975. Phylogenetic relationships of the Sarraceniaceae. Taxon 24: 297-306. SELECTED REFERENCES Bayer, R. J. et al. 1996. Phylogenetic relationships in Sarraceniaceae based on rbcL and ITS sequences. Syst. Bot. 21: 121-134. Bell, C. R. 1949. A cytotaxonomic study of the Sarraceniaceae of North America. J. Elisha Mitchell Sci. Soc. 65: 137-166. DeBuhr, L. E. 1975. Phylogenetic relationships of the Sarraceniaceae. Taxon 24: 297-306. Herbs, perennial, (carnivorous), rhizomatous, sometimes stoloniferous, scapose; rhizomes with alternate deltate scales 1-2 cm. Stems absent. Leaves (henceforth referred to as pitchers) rosette-forming, alternate, developing into hollow tubes; stipules absent; petiole clasping, dilated; blade green, yellow-green, reddish, or purplish, often distinctly red, pink, or green, purple-veined or -blotched, sometimes white-areolate, winged laterally along its length, usually prominently costate, surfaces of pitcher and hood glabrous or hairy and minutely glandular; orifice with thickened, revolute rim; hoods variously arranged in association with orifices. Phyllodia present or absent. Scapes 1 or 2, bracteate, glabrous. Inflorescences: solitary flowers, arising from growing tip of rhizome. Flowers bisexual, nodding; perianth and androecium hypogynous; hypanthium absent; sepals 5; petals 5, distinct; stamens 15 or 50-100, distinct or slightly fascicled; anthers laterally dehiscent; pistils 1, 5-carpellate; ovary superior, 5-locular; placentation axile to parietal; ovules anatropous, bitegmic, tenuinucellate; styles 1, terminal; stigmas 5, distal. Fruits capsular, globose to ovoid or obconic, shallowly 5- or 10-lobed, tuberculate, dehiscence loculicidal. Seeds 400-1000, tan, irregularly clavate to reniform-obovate; embryo straight; endosperm copious, oily. Fls perfect; sep 5; pet 5 or none; stamens (10–) numerous, with short filaments and introrse anthers; ovary (3)5-locular, with numerous ovules on axile (or distally intruded-parietal) placentas; style 2, subentire or branched above; fr a loculicidal capsule; seeds numerous, small, with a minute, dicotyledonous embryo and copious endosperm; perennial, insectivorous herbs with hollow, pitcher- shaped lvs and large, nodding fls solitary on a scape or in few-fld racemes. 3/15, New World.General Information
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Literature
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Flora of North America @ efloras.org
LiteratureNortheastern Flora
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