. A spring flora for high schools. Botany. 72 CRUCIFERAE (MUSTARD FAMILY) The fruiting pedicels are short and thick and the pods are smooth, 4 cm. long. Introduced from Europe. B. nigra, Black Mustard. Leaves slender, petioled and somewhat hairy, the lower ones having a very large terminal lobe and a few small lateral ones. The pods short, cm. long, on short erect pedicels, flattened. The seeds are dark and very pungent. Common along roadsides and in waste places. Introduced from Europe. Mostly biennials, somewhat 4-sided. BARBAREA Flowers yellow. Pods linear, round or B. vulgaris. Win
. A spring flora for high schools. Botany. 72 CRUCIFERAE (MUSTARD FAMILY) The fruiting pedicels are short and thick and the pods are smooth, 4 cm. long. Introduced from Europe. B. nigra, Black Mustard. Leaves slender, petioled and somewhat hairy, the lower ones having a very large terminal lobe and a few small lateral ones. The pods short, cm. long, on short erect pedicels, flattened. The seeds are dark and very pungent. Common along roadsides and in waste places. Introduced from Europe. Mostly biennials, somewhat 4-sided. BARBAREA Flowers yellow. Pods linear, round or B. vulgaris. Winter Cress. A smooth perennial. The lower leaves lyrate, the terminal division round and usually large. The lateral divisions 1-4. The upper leaves obovate, cut-toothed, or pinnatifid at the base. Flowers bright yellow. Pods erect or ascending on spread- ing pedicels. Low grounds and roadsides. DENTARIA Herbs with long, horizontal, fleshy and pungent rootstocks. Simple stems naked below and bearing 2 or 3 petioled, compound leaves about or above the middle, and terminated by a single cluster of large white or purple flowers, and lanceolate flat pods. D. diphylla, Toothwort. Rootstock long and continuous, often branched; stem-leaves 2, similar to the basal ones; leaflets rhombic-ovate or oblong-ovate, coarsely crenate, the teeth abruptly acute;' flowers white. Rich woods. D. laciniata, Toothwort. Rootstock tuberous, deep-seated; basal leaves, often none; stem-leaves 3-parted, the lateral segments often 2-lobed, all broadly ob- long to linear, more or less gash-toothed; flowers white or rose-color. Rich Dentaria laciniata, 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 Cowles, Henry Chandler, 1869-1939; Coulter, John G. (John Gaylord), b. 1876. joint author. New York, Cincinnati [etc. ] Ame
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
