An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 6. PETRORHAGIA (Ser.) Link, Handb. 2: 235. 1831. Rigid and slender mainly perennial herbs, with small glomerate panicled or solitary flowers, bracted at tlie base. Calyx top-shaped or campanulate, 5-toothed, 5-iS-nerved. Petals 5, long- clawed, the limb emarginate or bifid. Stamens 10. Styles 2. Capsule ovoid or obl
An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 6. PETRORHAGIA (Ser.) Link, Handb. 2: 235. 1831. Rigid and slender mainly perennial herbs, with small glomerate panicled or solitary flowers, bracted at tlie base. Calyx top-shaped or campanulate, 5-toothed, 5-iS-nerved. Petals 5, long- clawed, the limb emarginate or bifid. Stamens 10. Styles 2. Capsule ovoid or oblong, dehis- cent by 4 apical teeth or valves. Seeds compressed, laterally attached; embryo straight, eccentric. [Greek, stone-breaking.] A genus of about 20 species, natives of southern Europe and a, the following typical. I. Petrorhagia Saxifraga (L.') Ser. Ttinica. Saxifrage Pink. Fig. 1827. Dianlhus Saxifraga L. Sp. PI. 413. 1753. Tunica Saxifraga Scop. Fl. Carn. Ed. 2, 300. 1772. Petrorhagia Saxifraga Ser.; Link. Handb. 2: 235. 1831. Perennial, tufted, sparsely pubescent or glabrous; stems dif- fuse or ascending, 4'-8' long, terete, branching. Leaves linear- subulate, erect, very acute, z's' long, less than J' wide, connate at the base, the lower imbricated, the upper distant, their mar- gins scabrous or ciliate; flowers panicled, about 3' broad, pink or purple; calyx campanulate, S-ribbed, 3' long, twice the length of the scarious-margined acute bracts. Roadside 7. SAPONARIA L. Sp. PI. 408. i7S3- Annual or perennial, erect or diflfuse herbs, mostly with broad leaves and large flowers. Calyx ovoid, oblong or tubular, s-toothed, obscurely nerved. Petals s, entire or emarginate, long-clawed. Stamens 10. Ovary i-celled or incompletely 2-4-celled; styles 2. Capsule ovoid or oblong, dehiscent by 4 short apical teeth or valves. [Latin, soap; its juices abound in saponin, and have cleansing qualities.] About 35 species, natives of Europe, Asia and northern Africa the following t
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