Struthanthus concinnus
Content
Description
Plants sparsely branched, glabrous or minutely papillose; bearing occasional epicortical roots; internodes terete or slightly compressed. Petiole to 1 cm long, discrete; blade lanceolate, to 8 x 2.5 cm, acute at both ends; midrib evident and running into apex, lateral veins many and inconspicuous. Inflorescence a raceme to 3 cm long, with 3 or 4 pairs of triads and somewhat compressed axis; peduncle 1-1.5 cm long, triad peduncle 0.3-0.7 cm; bract and bracteoles small, triangular, persistent. Flowers not seen. Fruit ellipsoid, 0.8 x 0.4 cm, orange or brownish at maturity, calyculus inconspicuous.
Distribution
French Guiana, Guyana, Southern America
Brazil; ca. 10 collections studied; probably Guyana and French Guiana (see note below) (GU: 1; FG: 1).
Notes
The two fruiting specimens cited above are placed together and identified as S. concinnus on a provisional basis. They do not completely correspond with the circumscription of the species found in Krause (1932) with respect to the supposedly lenticellate stem surface and sessile triads, features which Krause may have based on Brazilian material (see the diagnosis and illustrations in Eichler, 1868). No flowers are present on either specimen. Pipoly et al. 11417 differs from Mori et al. 18185 in having a minutely papillose stem surface, the former being glabrous.