Corylopsis (Corylus and opsis, likeness; in foliage resembling the Hazel). Hamameliddceae. Deciduous shrubs, rarely trees : lvs. alternate, deciduous, dentate : fls. in nodding racemes, appearing before the lvs., yellow; petals and stamens 5: fr. a 2-celled, dehiscent capsule, with 2 shining black seeds. Six species in E. Asia and Himal. Low ornamental shrubs, with slender branches and pale bluish green,distinct foliage; very attractive in earl spring, when covered with yellow, fragrant fls. Not hardy north of New York. They grow best in peaty and sandy soil. Prop. by seeds sown in spring, best with slight bottom heat, and by cuttings of half-ripened wood in summer under glass; also by layers, rooting readily in moderately moist, peaty soil.
pauciflora, Sieb. & Zucc. Low, much-branched shrub, 2-3 ft.: lvs. obliquely cordate, ovate, sinuate-dentate, ciliate, pubescent and glaucous beneath, 1-2 in. long: racemes 2-3-fld., 1/2—3/4 in. long: fls. light yellow. Jap. S.Z. 20. G.F. 5:342. Gt. 48:1-167.
spicata, Sieb. & Zucc. Shrub, to 4 ft.: lvs. oblique and rounded or cordate at the base, roundish ovate or obovate, sinuate-dentabe, glaucous beneath and pubescent, 2 - 3 1/2in. long: racemes 7-10-fld., 1-2 in. long: fls. bright yellow. Jap. S.Z. 19. B.M. 5458. F.S. 20:2135. R.H. 1869, p. 230; 1878, p. 198. -This species has larger and handsomer foliage and fls. of a deeper yellow, in longer racemes, but C. pauciflora flowers more profusely and is somewhat hardier.
C. Himalayana, Griff. Shrub or small tree, to 20 ft.: lvs. cordate-ovate, 4-7 in.: racemes 1-2 1/2 in. long. Himal. B.M. 6779. Tender.