View source for Kernera

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Kernera (Johann Simon von Kerner, 1755-183O, professor of botany at Stuttgart). Cruciferae. Under this name amateurs cult, a rock-plant growing about 4in. high, which blooms profusely all summer, its fls. being small, white, and borne in elongated umbels. Bentham & Hooker regard Kernera as a subgenus of Cochlearia, in which the stamens are longer and bowed at the apex: pods turgid; valves very convex: cotyledons accumbent or incumbent. Prantl (in Engler & Prantl, Pflanzenfamilien), however, keeps the genus distinct, comprising 5 species in the mountains of Cent, and S. Eu. They are perennial herbs, with simple or pinnately parted lvs.

The species grown in rock-gardens is a compact branching, neat-habited plant thriving in any light soil that is moderately rich. It requires a sunny but not too dry situation. Prop, by cuttings, division or seed. K. saxatilis. Reichb. (Cochlearia saxatilis, Linn.). Root- lvs. oblong, dentate, pilose; st.-lvs. linear-oblong: petals 4, obovate, 2-3 times as long as the calyx: seeds numerous, not margined. Pyrenees to Carpathians. Wilhelm Miller.
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