Monographs Details: Cassia glaziovii Taub. ex Harms
Authors:Howard S. Irwin, Rupert C. Barneby
Authority: Irwin, Howard S. & Barneby, Rupert C. 1978. Monographic studies in Cassia (Leguminosae, Caesalpinioideae). III. Sections Absus and Grimaldia. Mem. New York Bot. Gard. 30: 1-300.
Family:Caesalpiniaceae
Description:Distribution and Ecology - Rocky campo, chapadao, margins of gallery-forest, and dense woodland, 880-1200 m, locally plentiful but confined to the e. slope of centr. Sa. do Espinhapo on the headwaters of Rio Jequitinonha between Mendanha and Serro, centr. Minas Gerais. — Fl. X—IV. "Brasilien: Minas Geraes, Diamantina a Perpetua (Glaziou n. 19076, 1891/92)."

Species Description - Amply leafy shrubs and treelets up to 1.5-4 m, with thin crooked blackish trunks paniculately ramified distally into densely leafy branchlets, villous-hispidulous and moderately viscid throughout, the young stems, lf-stalks, and inflorescence in addition charged with scattered pallid, yellowish or livid setules, the foliage subconcolorous, the inflorescence terminally racemose, often exserted Stipules foliaceous, broader than long, reniform-amplexicaul to shallowly 2-lobed, short- acuminate at the functional apex, 0.5-1.8 x 1-2.6(-3) cm, radially many-nerved, pubescent as the lvs, persistent through life of the adjoining leaf, finally deciduous. Lvs spreading-ascending, petioled, 6-22 cm; pulvinus a little dilated, ± 2-3 mm long; petiole 1.5-3.5 cm, ±0.6-1.4 mm diam, openly sulcate; rachis 2-10.5 cm; lfts (2-)3-5(-6) pairs, spreading and a little tilted forward (but not on edge) on a scarcely dilated, densely hispidulous pulvinule 1-2.4 mm, longer upward, in outline narrowly ovate- to lance-acuminate, mucronate, (1.6-)2.5-8 x (0.7-)0.9-2.7 cm, at strongly asymmetric base semi-cordate on proximal and rounded on distal side, the blades thinly papery, either on both sides dull brownish-olivaceous or subnigrescent, a little paler beneath, above very thinly villosulous with fine erect hairs, glabrescent in age, beneath either both hispidulous with stiff hairs divergent from midrib and secondary veins and minutely glandular-setulose between them or glandular-setulose, the slightly eccentric midrib and ±7-10 pairs of secondaries pallid and faintly raised above, sharply prominulous beneath, the tertiary venation beneath visible but immersed, not defining depressed areoles. Inflorescence leaf-opposed or terminal to branchlets, subsessile, simply, at length loosely racemose, the axis becoming 1-3 dm, not, only shortly, or far emergent from the foliage, when young concealed by the upwardly imbricated bracts, the 1 (-2) fls simultaneously expanded standing far below the unopened buds; bracts foliaceous, resembling lfts in color, texture, and except for the symmetrically cordate-amplexicaul base in shape also, 1.5-4 x 0.8-2 cm, persistent; pedicels incurved-ascending, laterally compressed, 1.7-4 cm, bracteolate 2-5 mm below calyx; bracteoles submembranous, pallid or yellowish-green, ovate-acuminate, cordate at base, 14-21 x 4-9 mm, completely enveloping the buds, dorsally villosulous and glandular, villosulous within, deciduous at anthesis; buds ovoid-acuminate, villous-hirsutulous proximally, scarcely setulose; sepals subpetaloid, yellow and longitudinally red-striped externally, elliptic-acuminate, 11-19 x 3-5 mm; petals yellow, the 4 plane ones broadly flabellate-cuneate, 1 of them smaller, the largest 15-22 x 12-21 mm, the ample dimidiate fifth petal nearly as long; ovary viscid-setulose; ovules 6-9. Pod linear-oblong, slightly curved downward, 3-4.1 x 0.7-1.2 cm, the purplish-green, finally brown valves glandular-villous and minutely setulose; seeds unknown. — Collections: 5.

Discussion:

A handsome large-flowered cassia, resembling C. phyllostachya in general aspect, but instantly recognized by the dilated, foliaceous stipules.

Distribution:Brazil South America| Minas Gerais Brazil South America|

Narratives:Cassia glaziovii