. 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. Genus i. CACTUS FAMILY. 569 I. Echinocereus viridiflorus Engelm. Green-flowered Hedgehog Cereus. Fig. 2981. Echinocereus viridiflorus Engelm. Wisliz. Tour North. Mex. 91. 1848. Cereus viridiflorus Engelm. Mem. Am. Acad. (II.) 4:50. 1849. Stem subglobose to oval-cylindric, i'-8' high, simple, or sparingly branched, 1-2' in diameter. Ribs about 13; longer radial
. 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. Genus i. CACTUS FAMILY. 569 I. Echinocereus viridiflorus Engelm. Green-flowered Hedgehog Cereus. Fig. 2981. Echinocereus viridiflorus Engelm. Wisliz. Tour North. Mex. 91. 1848. Cereus viridiflorus Engelm. Mem. Am. Acad. (II.) 4:50. 1849. Stem subglobose to oval-cylindric, i'-8' high, simple, or sparingly branched, 1-2' in diameter. Ribs about 13; longer radial spines 12-18, with 2-6 setaceous upper ones, the lat- eral ones reddish brown, the others white or rarely purple; central spine stout, straight or curved, purple and white, or wanting; flowers about l' broad, greenish brown without, yel- lowish green within; petals obtuse or acute; fruit ellipsoid, greenish, 5"-6" long; seeds tubercled. South Dakota to Wyoming, Texas and New Mexico. Our figure is copied from plate 36, Cactaceae of the Mexican Boundary Survey, rep- resenting the Cereus viridiflorus tuhulosus Coult. Contr. Nat. Herb. 3 : 383. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913. New York, Scribner
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
