Ruellia serratitheca Rusby
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Authority
Rusby, Henry H. 1927. Descriptions of New Genera and Species of Plants Collected on the Mulford Biological Exploration of the Amazon Valley 1921-1922. Mem. New York Bot. Gard. 7: 205-387.
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Family
Acanthaceae
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Scientific Name
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Description
Species Description - Subglabrous, the scattered whitish hairs short, minute, appressed, the stems quadrangular and sulcate. Petioles 1 to 2 cm. long, slender, channeled, the bases of the younger ones connected by an interpetiolar line. Blades 7 to 15 cm. long, 3 to 6 cm. broad, ovate, acuminate and acute, the base abruptly and slightly produced into the petiole; lightly and irregularly sinuate-dentate, bright-green, thin, the slender venation prominent beneath, the secondaries about 7 on a side, moderately ascending and lightly curved and connected by numerous straightish tertiaries. Panicles axillary, on very long and slender peduncles, small, narrow and few-flowered, the subconnate bracts linear, elongated. Calyx 5 mm. long, the tube cupulate, very short, the teeth linear-setaceous, subequal. Corolla bright-yellow, the narrow cylindric tube a half longer than the calyx, abruptly inflexed above, the upper portion 2 cm. long, campanulate, slightly contracted at the mouth, the lobes erect, very short, obtuse. Lower portion of filaments connate in pairs, the anthers subexserted, one theca minutely serrate on the margin.
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Distribution
Canamina, 4,500 feet, H. H. Rushy, July 28, 1921 (no. 363).
Venezuela South America|