. 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. i. Iris-versicolor L. Larger Blue-flag. Poison-or Water-flag. Fig. 1328. Iris versicolor L. Sp. PI. 39. 1753. Iris virginica L. Sp. PI. 39. 1753. Rootstock horizontal, thick, fleshy, covered with the fibrous roots. Stems terete or nearly so, straight or flexuous, 2°-3° tall, often branched above, leafy; leaves erect, shorter than the stem, somewhat glau- cous,
. 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. i. Iris-versicolor L. Larger Blue-flag. Poison-or Water-flag. Fig. 1328. Iris versicolor L. Sp. PI. 39. 1753. Iris virginica L. Sp. PI. 39. 1753. Rootstock horizontal, thick, fleshy, covered with the fibrous roots. Stems terete or nearly so, straight or flexuous, 2°-3° tall, often branched above, leafy; leaves erect, shorter than the stem, somewhat glau- cous, 6"-i2" wide; bracts commonly longer than the pedicels, the lower one sometimes foliaceous; flowers\; several, violet-blue, variegated with yellow, green and white; perianth-segments glabrous, crestless, the outer ones spatulate, 2's' long, longer and wider than the inner; perianth-tube dilated upward, shorter than the ovary; capsule oblong, obscurely 3-lobed, about i¥ long and 8" in diameter; seeds 2"-^' broad, in 2 rows in each cell, the raphe indistinct. In marshes, thickets and wet meadows, Newfoundland to Manitoba, south to Florida and Arkansas. Snake-, Liver- or Flag-lily. May-July. 2. Iris hexagona Walt. Southern Blue-flag. Fig. 1329. Iris hexagona Walt. Fl. Car. 66. 1788. Rootstock stout, thick. Stems terete, usually simple, straight or flexuous, leafy, i°-3° tall; leaves ¥-i¥ wide, green, not glaucous, the lower often 2°-3° long; flowers solitary in the upper axils, sessile, similar to those of I. versicolor, but larger, the broader outer crestless perianth segments often 4' long and over 1' wide, much wider than the erect inner ones; perianth- tube rather longer than the ovary, a little dilated up- ward; capsule oblong-cylindric, 6-angled, about 2' long; seeds in 2 rows in each cavity. In swamps, South Carolina to Florida, Kentucky(?) and Texas. Not certainly known within our area. April-May. 3. Iris georgiana Britton. Carolina Blue-flag. F
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
