Calliandra tsugoides R.S.Cowan
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Authority
Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.
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Family
Mimosaceae
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Scientific Name
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Description
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Latin Diagnosis - Arbuscula 6-10 m alta, ramulis leviter albo-pilosis; stipulae deciduae, ca. 5 mm longae, 1 mm latae, lineari-lanceolatae, obtusae, externe strigulosae, intus glabrae; petioli 5-6 mm longi, parce pilosuli, rachibus 12-30 mm longis, sparse pilosulis; pinnae 2-4-jugatae, anguste ellipticae, petiolis secondariis 2 mm longis, sparse pilosulis, rachibus secondariis 60-80 mm longis, sparse pilosulis; foliola sessilia, 35-45-jugata, valde approximate, angustissime oblonga, leviter curvata. apice rotundato-obtusa, base truncata, supre valde nitida, infra glabra, ciliolata, costa nulla, 3-nervia, utrinque nerviis prominulis, pinnarum foliolis mediis 7-12 mm longis, 1.5-2 mm latis, foliolis apicalibus et basalibus plus minoribus; inflorescentia capitata, terminalis et in axillis foliorum superiorum, peduneulo 17-27 mm longo, albo-pilosulo et glanduloso-puberulo, floribus sessilibus, perianthio externe sericeo, intus glabro; calyx eupularis, ca. 2 mm longus, 4-dentatus; corolla 5 mm longa, lobis ca. 3 mm longis, ovatis, acutis; filamenta basi solum connata, ca. 40 mm longa; ovarium lineare, puberulum, lateraliter unisulcatum; fructus ca. 75 mm longus, 10 mm latus, angustissime ellipticus, mucronatus, puberulus, margine incrassatus; semina oblonga, 8 mm longa, 6 mm lata, lateraliter compressa.
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Discussion
Type Collection: B. Mag wire, R. S. Cowan, cO -/. J. Wurdack 30705 (holotype NY), "shrub or tree to 6 m. Anthers red, with extreme base white. Perianth white with reddish tips. Frequent on cumbre and slopes of Cerro Yapacana, Terr. Amazonas, Venezuela, Jan 3, 1051." Paratypes: same data and collectors, 30633, 30671.
The relatives of this species occur in such distant regions that they might easily be completely overlooked. The nearest, morphologically, of these is apparently C. calycina, but C. hirsuticaulis is almost as closely allied. Both species and most of their relatives are natives of southeastern Brazil. C. tsugoides may be distinguished from both by the number and shape of the pinnae, number of pairs of leaflets, pubescence and size of the flowers, and the length of the staminal tube. From C. rigida, a species of British Guiana, which appears to be similar, C. tsugoides differs in number and shape of pinnae, pubescence of flowers, size and persistence of stipules, etc.