. 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 . 4. Radicula sphaerocarpa (A. Gray) Greene. Round-fruited Cress. Fig. 2029. Naslurlium sphaerocarfiim A. Gray, Mem. Am. Acad. 4: 6. 1840. Roripa sphaerocarpa Britton, Mem. Torr. Club 5: 170. 1894. R. oblusa sphaerocarpa Robinson, Rhodora 10: 32. 1908. Radicula sphaerocarpa Greene, Leaflets, i: 113. IQOS- Glabrous, stem erect or decumbent, usually branched, slender, 4-12' high


. 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 . 4. Radicula sphaerocarpa (A. Gray) Greene. Round-fruited Cress. Fig. 2029. Naslurlium sphaerocarfiim A. Gray, Mem. Am. Acad. 4: 6. 1840. Roripa sphaerocarpa Britton, Mem. Torr. Club 5: 170. 1894. R. oblusa sphaerocarpa Robinson, Rhodora 10: 32. 1908. Radicula sphaerocarpa Greene, Leaflets, i: 113. IQOS- Glabrous, stem erect or decumbent, usually branched, slender, 4-12' high. Leaves oblong, obtuse, the lower lyrate-pinnatifid or incised, the upper sometimes nearly entire, all petioled or the upper subsessile; petioles narrowly margined, somewhat clasping at the base; flowers i" broad or less; petals yellow, about equalling the sepals; silicle globose, or subglobose, l"-2" in diameter, about as long as its pedicel; style very short. Illinois to Kansas, Texas and California. Perhaps a short-podded race of the preceding species. June- July. 5, Radicula palustris (L.) Moench. Marsh or Yellow Water-cress. Fig. 2030. "â Sisvmbriiim amphibium van palustre L. Sp. PI. 657. 1753- Radicula palustris Moench, Meth. 263. I794' Nasturtium terrestre R. Br. in Ait. Hort. Kew. Ed. 2, 4: no. 1812. Naslnrtium palustre DC. Syst. 2: 191. 1821. Roripa palustris Bess. Enum. 27, 1821. Annual, or biennial, erect, branching, glabrous or slightly pubescent, i°-3J° high. Lower leaves petioled, 3-7' long, oblong or oblanceolate, deeply pinnatifid (rarely only dentate), the lobes acutish or blunt, repand or toothed; upper leaves nearly ses- sile, dentate or somewhat lobed; base of the petiole often dilated and clasping; pedi- cels slender, 3" long in fruit; flowers yel- low, 2"-3" broad; pods linear, or linear- oblong, 2-6 times as long as thick, about equalling the pedicels, spreading or curved; style i" long or less. In wet place


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913