. 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. Botany. CALLITRICHACEAE. Vol. II. Callitriche palustris L. Vernal Water-Star- wort. Water Fennel. Fig. 2770. triclie palustris L. Sp. PI. 969. 1753. triclie verna L. Fl. Suec. Ed. 2. 4. 1755- triche vernalis Koch, Syn. Fl. Germ. Ed. 2. 245. 1837. Aquatic or growing in the mud, stems a'-jo' long. Sub- merged leaves linear, i-nerved, retuse or bifid at the apex, S"-io"
. 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. Botany. CALLITRICHACEAE. Vol. II. Callitriche palustris L. Vernal Water-Star- wort. Water Fennel. Fig. 2770. triclie palustris L. Sp. PI. 969. 1753. triclie verna L. Fl. Suec. Ed. 2. 4. 1755- triche vernalis Koch, Syn. Fl. Germ. Ed. 2. 245. 1837. Aquatic or growing in the mud, stems a'-jo' long. Sub- merged leaves linear, i-nerved, retuse or bifid at the apex, S"-io" long; emersed or floating leaves obovate, obtuse, truncate or retuse at the apex, narrowed at the base into a margined petiole, dotted with stellate scales: aquatic forms occur with the leaves all linear; fruit 2-bracted, oval, A"-l" long, about one-half as broad, nearly flat on the face, slightly notched at the apex, winged only toward the apex, or all around, separated by a deep groove. Mostly in cold or running water, apparently occurring nearly Canada. Als Water-chickweed. running South July-Sept. 3. Callitriche heterophylla Pursh. Larger Water-Starwort. Fig. 2771. Callitriche heterophylla Pursh, Fl, Am. Sept. 3. 1814. Similar to the preceding species, either aquatic or grow- ing in the mud. Fruit smaller, mostly obovate, usually slightly less than 4" long, and about the same breadth, broadly notched at the apex, thick, plano-convex, almost ventricose at the base; lobes obtusely angled with a small intervening groove, wingless, or with a narrow wing or raised border on the margins; styles usually longer than the fruit, erect. In ponds and slow streams, Newfoundland to Manitoba, Florida. Missouri, Colorado and Louisiana. 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,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
