. 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 102nd meridian . 18. Hjrpericum gymnanthum Engelm. & Gray. Clasping-Ieaved St. John's wort. Fig. 2898. Hypericum gymnanthum Engelm. & Gray, Bost. Journ. Nat. Hist. 5: 212. 1847. Annual, erect, simple or sparingly branched, io'-3° high. Leaves ovate, or the lower oval, cordate-clasping, often distant, 4"-lo" long, 2"-4" wide, acute, or the lower obtuse. i~y- nerved
. 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 102nd meridian . 18. Hjrpericum gymnanthum Engelm. & Gray. Clasping-Ieaved St. John's wort. Fig. 2898. Hypericum gymnanthum Engelm. & Gray, Bost. Journ. Nat. Hist. 5: 212. 1847. Annual, erect, simple or sparingly branched, io'-3° high. Leaves ovate, or the lower oval, cordate-clasping, often distant, 4"-lo" long, 2"-4" wide, acute, or the lower obtuse. i~y- nerved at the base; cymes terminal, loose, sub- ulate-bracted; flowers numerous, i"-2"broad; sepals lanceolate, acuminate, equalling or shorter than the petals and generally some- what shorter than the i-celled ovoid capsule; styles 3; stamens 10-12; capsule about 2" long. In low grounds, southwestern New Jersey and Delaware to Ohio. Minnesota, Arkansas, Louisi- ana and Texas. July-Sept. 19. Hjrpericum majus (A. Gray) Britton. Larger Canadian St. John's-vvort. Fig. 2899. Hypericum canadense var. majus A. Gray. Man. Ed. S, 86. 1867. Hypericum majus Britton, Mem. Torr. Club 5 : 225. 1894. Annual or perennial, stouter than H. canadense, stem erect. i°-3° high, usually branched above, the branches nearly erect. Leaves lanceolate or oblong-lanceolate, sessile or somewhat clasping, io"-2i' long, 3"-6" wide, acute or TDbtuse at the apex, 5-7-ner\ed ; cymes several-many-flowered ; bracts subulate; flowers 3"-5" broad; sepals lan- ceolate, acuminate, about as long as the petals or shorter; styles 3; capsule narrowly conic, acute, 4"-5" long, longer than the narrowly lanceolate sepals: seeds minute, cross-lined and faintly longitudinally striate. In moist soil. Quebec to Manitoba, British Colum- bia, New Jersey. Illinois and Colorado. June-Sept.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
