Stenostephanus boliviana 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 - Veins of the lower leaf-surfaces, inflorescence, etc., puberulent. Branchlets slender, quadrangular, sulcate. Leaves to 3 dm. long, 1.5 dm. wide, ovate, abruptly contracted into an acuminate, subsessile base and into a short acute terminal acumination, entire, thin, very sparsely and minutely strigose above, puberulent on the veins beneath, the secondaries about 15 on each side. Inflorescence terminal, thyrsoid. Bracts ovate, acuminate, rigid, the bractlets smaller and narrower. Pedicels 1 to 2 mm. long. Calyx-tube crateriform or nearly hemispheric, 2 mm. wide, after anthesis becoming contracted above the ovary and depressed-globose in form. Calyx-teeth 3 mm. long, subulate and attenuate from the base. Narrow portion of the corollatube about equaling the calyx, slightly enlarged upward, then abruptly dilated into the ventricose throat, which is 1 cm. long and 8 mm. broad, slightly curved and with the mouth slightly contracted. Upper lip of corolla 5 mm. long, narrow, entire, erect or recurved, the lower lip shortly 3-lobed, the middle lobe a little smaller, the lobes ovate, obtuse, about 3 mm. long. Stamens 2, attached to the base of the corolla, exserted, more than twice as long as the corolla, one shorter than the other and with a smaller anther. Anthers 1-celled. Style filiform, about equaling the stamens, the stigma small, entire.
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Distribution
Ixiamas, 1,500 feet, Martin Cardenas, December 12,1921 (no. 1905).
Bolivia South America|