Monographs Details: Chamaecrista glandulosa var. balsasana H.S.Irwin & Barneby
Authors:Howard S. Irwin, Rupert C. Barneby
Authority: Irwin, Howard S. & Barneby, Rupert C. 1982. The American Cassiinae. A synoptical revision of Leguminosae tribe Cassieae subtrib Cassiinae in the New World. Mem. New York Bot. Gard. 35, part 2: 455-918.
Family:Caesalpiniaceae
Description:Latin Diagnosis - Chamaecrista glandulosa (Linnaeus) Greene var. balsasana Irwin & Barneby, var. nov., habitu toto var. flavicomae proxima, foliolis attamen crassis subcoriaceis venatione immersa facie utraque laevissimis parum sed satis diversa.—PERU. Cajamarca, prov. Celendín: along Río Marañón opposite Balsas, 800 m, 29.V.64 (fl, fr. mat.), P. C. Hutchinson & J. K. Wright 5428.

Species Description - Slender shrubs to 5 dm, with ± abruptly flexuous wiry branchlets, the casta- neous bark of old stems splitting lengthwise, glabrous except for minutely puberulent annotinous branchlets, lf-stalks, and ovaries, the foliage bicolored, the thick-textured, apparently almost veinless lfts brownish-olivaceous above, paler beneath. Stipules lanceolate or triangular-lanceolate 3-7 x 0.7-1.6 mm, from subsym- metric base (5-)6-11-nerved, persistent. Major cauline lvs (3-)3.5-7 cm, the petiole 3.5-6 mm; petiolar gland 1, shortly stout-stipitate or subsessile, orbicular 0.4-0.8 mm diam, in profile trumpet-shaped or obconic, 0.5-1.2 mm tall; several smaller glands on distal segments of rachis; lfts (5-)6-12 pairs, lance- or linear-oblong, the larger up to 12-22 x 2.5-4 mm, the slender pallid, moderately excentric midrib with 3-5 pairs of pinnate secondary venules visible but scarcely prominulous beneath, fully immersed above. Peduncles adnate through 2.5-12 mm, 1-3-fld; pedicels (10-)13-24 mm; sepals (glabrous) to 13-15 mm; long abaxial petal ±14-16 mm; style 6.5-8.5 mm, linear; ovules ±10-11. Pod 30—45 x 4—5.3 mm, the castaneous sublustrous valves sparsely puberulent; seeds unknown.—Collections: 2.

Distribution and Ecology - Rock slides, 800 m, known only from the inter-Andean valley of Río Marañón, on the Cajamarca-Amazonas boundary near 6°45'S, in n. Peru.-Fl. ±IV-VI.

Discussion:

In almost all respects resembling the form of var. flavicoma found on the Pacific slope of the Andes in the latitudes of Chiclayo and Lima, but notable for the relatively few leaflets of such thick texture that the venulation of the upper face is fully immersed.

Distribution:Cajamarca Peru South America| Amazonas Brazil South America| Peru South America| Cajamarca Peru South America|