Mimosa aff. misera Benth.

Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, Phytotaxa 260 (3), pp. 201-222 : 220

57. * Mimosa aff. misera Benth.

Although J.R.I. Wood 15702 (K) from 5 km E of Taperas rd to Chochis, can be confidently placed in ser. Cordistipulae of sect. Batocaulon, assignment to any of the species in that series is problematic. It is superficially similar to M. minarum, but lacks the glandular setae and glandular fimbriolate leaflets of that species and the petiole is <1 mm cf the 3–12 (–14) mm petiole of M. minarum. The material does not fit well either within M. guaranitica nor M. misera. It lacks the random small aculei on leaf stalks of M. misera and has leaves with 2–7, as opposed to 7–10 pairs of pinnae. Furthermore, none of the descriptions of these three species mentions the dense covering of sessile round whitish glands on both leaflet surfaces that are clearly visible on J.R.I. Wood 15702. It is quite possible that this represents a new species of Cordistipulae. However, the three species M. minarum, M. misera and M. guaranitica are probably closely related forming a widespread alliance based around variation in indumentum and leaf formula and not readily divisible into distinct species as suggested by Barneby (1991: 273):—‘ the morphological differentiation of this whole series is not strong, and as material accumulates, the taxonomic status of its members will need re-assessmentí. Definitive placement of this material must form part of such a reassessment. Furthermore, J.R.I. Wood 15702 lacks fruits and collection of additional material, including fruits, is needed in order to clarify the status of this material.