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xanthoneura, 5.
xanthoneura, 5.
H. aspera. Don. Shrub, to 20 ft., similar to H. strigona: lvs. oblong-lanceolate, fimbriate-denticulate, densely villous beneath: sepals usually toothed: styles usually 3. Himalayas. Tender.—H. canescens, Koch (H. arborescens X H. radiata). Very similar to H. cinerea, but the hairs smooth or nearly smooth under the microscope, in H. cinerea tuberculate. Garden origin.—H. hirta, Sieb. & Zucc. Shrub, to 4 ft.: lvs. broad-elliptic, coarsely incised-serrate: cymes without sterile fls. Japan. S. Z. 62. Not very decorative. H. longipes, Franch. Allied to H. rosthornii. Lvs. thinner, smaller, more coarsely serrate, sparingly strigoso or glabrescent below; petioles 2-7 in. long. Cent, and W. China.—H. robusta. Hook. f. & Thorns. (H. cyanema, Nutt.). Closely related to H. rosthornii. Spreading shrub, to 15 ft., with large ovate lvs., pubescent on both sides: sterile fls. with toothed sepals. Himalayas. B. M. 5038. Handsome in bloom, but tender.—H. roseo-paniculata, Foucard. Supposed to be a hybrid of H. paniculata and H. opuloides. Fls. rose-carmine. R, H. 1912, p. 324.—H. villosa, Rehd. Allied to H. strigosa. Branchlets, petioles and cymes clothed with spreading villous hairs: lvs. strigose above, with a rough woolly tomentum below, 4-7 in. long. W. China. Var. strigosior, Rehd. Branchlets and petioles with shorter and fewer or without spreading hairs: lvs. smaller.—H. virens, Sieb. Slender shrub, to 6 ft.: lvs. elliptic or lanceolate, coarsely serrate, 1-2 ½ in.: cymes rather few-fld., sterile fls. with 3 or 4 large, unequal sepals, white. Japan. S. Z. 60. A desirable shrub, with graceful and delicate fls. and with the lvs. often handsomely variegated along the veins, but tender.
Alfred Rehder.
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