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Journal American Rhododendron Society

Current Editor:
Dr. Glen Jamieson ars.editor@gmail.com


Volume 30, Number 1
Winter 1976

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American Rhododendron Society Plant Registry

       The following clones appeared in the list of newly registered clones in The Rhododendron and Camellia Year Book, 1967, The Royal Horticultural Society; but have not been described in the A.R.S. Quarterly Bulletin:

EIKO-SAN: An evergreen azalea. An interspecies hybrid of Gumpo selection derived from R. indicum, R. kaempferi, and R. eriocarpum. Introduced into the U.S.A. without name from Dr. T. Rokujo, Tokyo, Japan, by Mary Louisa B. Hill, Vineyard Haven, MA. Possibly exists in Japan under a different name. (There are several similar clones with Japanese names, as Benibanyo.) Resembles the southern form of 'Balsaminaeflora'. Flowers openly funnel-shaped (double), 5 cm. across x 31/2 cm. long, 30-35 lobes (5-7 whorls of 5), center lobes folded, deep pink 2.5 R 6/11 (Nickerson) with veins of strong red. Calyx 2-3 mm., green hairy. Inflorescence single-flowered. Free-flowering; long-lasting. Leaves 3½ cm. x 1 cm., narrowly elliptic, acute, cuneate, retained 1 year, upper surface glabrous, dull green, hairy, under surface glossy, hairy on veins. Leaves reddish in winter. New growth greenish tan, hairy. Plant a compact mound, 15"" tall x 30" wide in 15 years. Blooms first half of June. Hardy to 5° F.
MATSUYO: An evergreen azalea. An interspecies hybrid of Gumpo selection derived from R. indicum, R. kaempferi, and R. eriocarpum. Introduced into the U.S.A. without name from Dr. T. Rokujo, Tokyo, Japan, by Mary Louisa B. Hill, Vineyard Haven, MA. Possibly exists in Japan under a different name. Flowers openly funnel-shaped, 8 cm. across x 5.5 cm. long, with 5 evenly rounded to wavy lobes. Flowers white,
each with thread-like to wide streaks, or sectors, or dots in a line of red group 39B (R. H. S. Colour Chart) that extend from throat to lobe edge. Some flowers all 39B. Calyx 5 mm., green, hairy. Inflorescence 1-2-flowered. Leaves 4 cm. x 1.3 cm., elliptic, acute, cuneate, glabrous, glossy, lightly hairy, dark green, retained 1 year. Under surface light green, glossy, with a few hairs. Plant low, medium dense, compact 16'" tall x 30" wide in 10 years. Blooms in early June. Plant hardy to -5°F; buds to 5-10° F.
YUKA: An evergreen azalea. An interspecies hybrid of Gumpo selection derived from R. indicum, R. kaempferi, and R. eriocarpum. Introduced into the U.S.A. without name from Dr. T. Rokujo, Tokyo, Japan, by Mary Louisa B. Hill, Vineyard Haven, MA. Possibly exists in Japan under a different name. Flowers widely funnel-shaped, 3½'' across x 3" long, with 5-6 wavy to slightly frilled lobes, mostly white, occasionally flushed red group 52D (R. H. S. Colour Chart), blotched or streaked 53B, or all red, with faint chartreuse blotch. Calyx 7 mm., light green, white hairy. Inflorescence 1-2flowered. Leaves 3.5 cm. x 1.8 cm., elliptic, acute, cuneate, deep green, glossy, slightly white or reddish hairy, retained 1 year. Under surface hairy on margins and veins. Plant vigorous, medium low, mounding, and spreading, 18" tall x 30" wide in 10 years. Blooms in late June. Hardy to 0° F.


Volume 30, Number 1
Winter 1976

DLA Ejournal Home | QBARS Home | Table of Contents for this issue | Search JARS and other ejournals