. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 5. Tiniaria cristata (Engelm. & Gray) Small. Fig. 1654. Crested False Polygonum cristatum Engelm. & Gray, Bost. Journ. Nat. Hist. 5 : 259. 1847. Tiniaria cristata Small, Fl. SE. U. S. 382. 1903. Perennial, scurfy, stem slender, twining, 2°-io long, more or less branched. Leaves triangular or ovate, I'-5' long, acuminate at the apex, undu- la
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 5. Tiniaria cristata (Engelm. & Gray) Small. Fig. 1654. Crested False Polygonum cristatum Engelm. & Gray, Bost. Journ. Nat. Hist. 5 : 259. 1847. Tiniaria cristata Small, Fl. SE. U. S. 382. 1903. Perennial, scurfy, stem slender, twining, 2°-io long, more or less branched. Leaves triangular or ovate, I'-5' long, acuminate at the apex, undu- late, truncate or cordate at the base, rather long- petioled; ocreae cylindric funnelform; flowers in axillary simple or compound often naked ra- cemes i'-s' long; pedicels about 2V long, jointed near the middle; calyx greenish-white, 2"-2l" long, 5-parted to near the base, the 3 outer seg- ments keeled and at maturity winged; stamens 8, included; style none; stigmas 3; fruiting calyx 3"-4" long, its wings incised; achene 3-angled, oblong, black, smooth, shining, about li" long. Sandy woods and rocky banks, Massachusetts to Florida, Oklahoma and Texas. This may be a form of the preceding species. 12. PLEUROPTERUS Turcz. Bull. Soc. Nat. Moscou 211: 587. 1848. Perennial, often large, many-stemmed herbs with wide-spreading rootstocks, the very stout stems hollow. Leaves alternate, broad, commonly large, usually truncate or cordate at the base, petioled. Ocreae oblique, fugacious as in Rumex. Flowers numerous, in short, axillary, sessile or nearly sessile panicles with short spreading branches. Sepals mostly 5, pale, usually white, enveloping the achene, the 3 outer ones winged at maturity, the wings firm. Stamens 6-8, included; filaments slender. Styles 3, short, distinct. Achenes 3-angled, much shorter than the sepal-wings. [Greek, referring to the calyx-wings.] Poly- gonum About 4 species, natives of eastern Asia. Type species: Pleuropterus cord
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