. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. POLYGONACEAB (BUCKWHEAT FAMILY) 359. 710. P. aviculare. a. Typical form x %, b. V. littorale x %. 0. Stem-leaf of v. veg^etum x %. d. Stem-leaf of V. angust. x%, doubtless elsewhere. 6. P. er^ctum L. Var. littor^ie (Link) Koch. Leaves thick, often obtuse; achenes slightly shining, obscurely punctate or punctate- striate. (P. littorale Link.) â A mari- time and littoral form sometimes char- acteristic, but passing to tlie typical form and separat
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. POLYGONACEAB (BUCKWHEAT FAMILY) 359. 710. P. aviculare. a. Typical form x %, b. V. littorale x %. 0. Stem-leaf of v. veg^etum x %. d. Stem-leaf of V. angust. x%, doubtless elsewhere. 6. P. er^ctum L. Var. littor^ie (Link) Koch. Leaves thick, often obtuse; achenes slightly shining, obscurely punctate or punctate- striate. (P. littorale Link.) â A mari- time and littoral form sometimes char- acteristic, but passing to tlie typical form and separated by. no constant character. (Eu.) Fig. 710 6. Var. vfigetum Ledeb. Larger, erect or nearly so ; the leaves (often 3 cm. long) oblong or narrowly elliptic, thin, the margins crisped. â Rich soil dnd in shade. (Eu.) Fig. 710 c. Var. angustissi- mum Meisn. Leaves linear, 5-9 times as long as broad. â Summit of Mt. Monad- nock, N. H., and (Eu.) Fig. 710 d. Stout, erect or ascendingj yellovrish- gi-een; leaves elliptical, cm. long, usually obtuse ; flowers yel- lowish-green, about 3 mm. long, on more or less exserted pedicels; stamens5-6; achene dull, included. â Waysides, waste places, etc. Fig. 711. 7. P. ramoslssimum Michx. Erect or ascending, m. high, yellowish-green; leaves lanceolate (2-5 cm. long), acute; sepals 6, the 3 outer 2-3 mm. long, carinate, cucuUate at the summit, drying green with yellow mar- gins ; the inner sepals smaller, yellow; stamens 3-6; â., <.â . V V .,/ achene smooth, shining, included. (P. camporum of ?t»^ ,lTvS"° '^ '^- auth. in part, not Meisn.) âSandy soil, Me. and Mass., btem-ieai X/s. j^^^j. ^_ p^_ . m_ ^^ jyiinn., Tex., and westw. Fig. 712. Forma ATLiNTicnm Eobinson. Sepals 5 or rarely 6, roseate, not drying yellow, nor even yellowish. â Frequent on the coast, Me. to R. I. In habit identical with the typical western form. i 8. P. tfinue Michx. Stem angled, erect ( dm. high), ij gla,brous, or slightly scahr
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