Monographs Details: Cassia gilliesii Glaz.
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
Scientific Name:Cassia gilliesii Glaz.
Description:Distribution and Ecology - Habitat not recorded, but to be expected in cerrado near 1000 m, known only from the type-locality, conjectured to be the Sta. Barbara lying due e. of Belo Horizonte on the Piracicaba fork of Rio Doce, near 20° S. in s.-e. Minas Gerais. — Fl. VI — VII. Brasilien: Minas Geraes, Santa Barbara, Campo (Glaziou n. 14638).

Species Description - Amply leafy shrubs of unknown dimensions (probably 1 m +), finely densely viscid- villosulous throughout and in addition, especially the young stems, lf-stalks and inflorescences, glandular-setulose, the setules arising from yellow base, the foliage bicolored, when dry blackish above, brownish-gray beneath, the paniculate inflorescence scarcely or shortly exserted. Stipules setiform, 2.5-4 mm, pubescent as the stem, caducous. Lvs spreading, 6-10 cm, subsessile; pulvinus slightly dilated discolored, ±2 mm; petiole ±2mm, 1-1.2 mm diam, shallowly sulcate; rachis 3.5-6 cm; lfts 3-5 pairs, spreading-ascending from rachis on strongly dilated, densely villous-setulose pulvinule 1.3-1.6 mm, larger upward, in outline obliquely ovate-acuminate or -caudate, mucronate, (1.5-)2-5.3 x 1-2.7 cm, at base moderately oblique, shallowly half-cordate, the entire but minutely undulate margin revolute, the blades thinly chartaceous, above blackish, dull, thinly and very finely villosulous and remotely setulose, beneath paler grayish-brown, densely pallid-papillate, villosulous with short hairs divergent from the setulose veins and erect between them, the midrib, 7-10 pairs of secondary and faint connecting tertiary veins all subfiliform, above yellowish, superficial or slightly elevated, beneath sharply prominulous, the areoles of reticulum flat, hardly recessed. Inflorescence a complex panicle of leafy-bracteate but distally leafless, subcorymbosely many-fld and distally depauperate 2-5-fld racemes, densely villosulous and yellow-setulose throughout, the axis of each raceme (2-)3-7 cm, the 1 or 2 flowers simultaneously expanded standing near or above level of buds following; bracts brown, linear-lanceolate, 3-5.5 mm, entire or shortly toothed on either side below middle, persistent; pedicels ascending, strongly compressed, 2-2.5 cm, bracteolate 3-5 mm below calyx; bracteoles resembling bracts, slightly smaller; buds ovoid- acuminate, densely yellow-setulose; sepals broadly elliptic to oblanceolate, 9.5-10 x 2.2-3.3 mm; petals (of Absus, poorly known) yellow, up to ± 14 mm; ovary yellow-setulose. Pod unknown. — Collection: 1.

Discussion:

One of the several amply leafy fruticose cassias native to Sa. do Espinha├žo, C. gilliesii resembles C. urophyllidia and C. calixtana, both distantly allopatric in northern Minas Gerais and adjacent Bahia, in having sessile leaves, but differs from both in long-pedicelled flowers subtended by persistent bracts and by sharply long-acuminate flower-buds. The habitally similar C. machaeriifolia, found only to the west of R. Sao Francisco in Minas and Goias, has with petiolate leaves a simpler, racemose or subracemose inflorescence and very much larger flowers. The person honored by the specific epithet gilliesii was not identified by Glaziou; he was perhaps one of the engineers of Anglo-Scottish descent active in the mining industry of the Diamond District.

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

Narratives:Cassia gilliesii