Chaetocalyx blanchetiana (Benth.) Rudd
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Authority
Rudd, Velva E. 1958. Revision of Genus Chaetocalyx. Contr. U. S. Natl. Herb. 32: 207-245.
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Family
Fabaceae
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Scientific Name
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Type
Type locality: Serra do Açuruá, Bahia, Brazil. Type collected by J. S. Blanchet (No. 2892), cited below.
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Description
Description - Stems, leaf rachis, and floral axis fulvous-pubescent and also beset with glandular setae; stipules lanceate, acute to attenuate, entire, sometimes glandular ciliate, tomentose, about 4-6 mm. long and 2 mm. broad at the base; leaves 7-9-foliolate, the rachis about 6-8 cm. long; leaflets elliptic to orbiculate, 10-35 mm. long, 10-20 mm. wide, entire, obtuse or emarginate, mucronulate, the base rounded, the upper surface pubescent to subglabrous, the lower surface pubescent; inflorescences axillary or terminal, few-flowered, the bracts stipulelike, the pedicels 10-15 mm. long; flowers 22-27 mm. long; standard petal pubescent on the outer face; calyx campanulate, gibbous, 8-12 mm. long, tomentose and setose, the tube 5-7 mm. long and about 5 mm. in diameter, the teeth 2-5 mm. long, oblong-lanceate, acute; stamens with pubescent filaments; fruit sessile, compressed,
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Discussion
This species, originally assigned to Isodesmia, is closely related to the preceding two species--C. tomentosa, the type of Isodesmia, and C. platycarpa, the type of Raimondianthus—but it differs from them in having longer calyx lobes. The fruits are less than one-half as broad as those of C. platycarpa, and the leaves have fewer leaflets than those of C. tomentosa. In addition to these three species, relatively broad, compressed fruits are also found in C. latisiliqua and probably in C. weberbaueri. Pubescence on the petals is a character shared with several species, but that same type of pubescence extending up the filaments seems to be peculiar to C. blancheliana, C. tomentosa, and C. platycarpa.