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Jin Cui, Juanxu Liu, Min Deng, Jianjun Chen and Richard J. Henny

Syngonium podophyllum Schott, commonly known as arrowhead vine, goosefoot plant, or nephthytis, belongs to the family Araceae and occurs indigenously on humid forest floors of Central and South America ( Croat, 1982 ). As a result of their

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D.J. Norman, R.J. Henny, J.M.F. Yuen and T.A. Mellich

Commercially grown cultivars of Syngonium (Araceae) are very susceptible to Myrothecium leaf spot (incited by Myrothecium roridum Tode ex Fr.). Therefore, cultivation of Syngonium requires rigorous sanitation and frequent applications of fungicides for disease control. The goal of this research was to identify species and noncultivated accessions of Syngonium resistant to Myrothecium leaf spot. Five commercial cultivars and 30 accessions, comprising 16 different Syngonium species, were screened for resistance to M. roridum. All five commercial cultivars were susceptible to M. roridum. However, seven species (S. neglectum, S. wendlandii, S. dodsonianum, S. erythrophyllum, S. chiapense, S. dodsonianum, and S. angustatum) showed the highest resistance, as did two noncultivated accessions of S. podophyllum. The information on disease resistance for these species and accessions will be useful in future breeding work.

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Seong-Hyun Park and Richard H. Mattson

in each room were identical. Room B contained single plants of arrowhead vine, cretan brake fern, variegated vinca, and yellow star jasmine arranged with two plants each of dendrobium, peace lily, golden pothos, and kentia palm. Measurements. Data

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Seong-Hyun Park and Richard H. Mattson

contained single plants of arrowhead vine, cretan brake fern, variegated vinca, and yellow star jasmine, arranged with two plants each of dendrobium, peace lily, golden pothos, and kentia palm. Measurements. Medical and psychological data were collected from