Stachytarpheta integrifolia (Pohl) Walp.

Sandy Atkins. (2005). The Genus Stachytarpheta (Verbenaceae) in Brazil. Kew Bulletin, 60(2), 161-272. Retrieved from http://www.jstor.org/stable/4110935

Type

in campis graminosis, ad Pillar, Capitaniae Goyaz (Goiás)', March & June 1819, Pohl s.n. (holotype W n.y.; isotype BR).

Morphology General Habit

Shrub to 1.6 m, unbranched

Morphology Stem

Stem reed-like, pithy, hollow, glabrous

Morphology Leaves

Leaves sessile, erect or patent, widely spread with long internodes, thickly chartaceous, ovate, oblong or (subrotund), (leaves at apex of plant narrowly oblong), 3.5 - 6.5(- 11) x 1 - 4(- 9) cm, apex acute to obtuse, occasionally emarginate, base truncate or auriculate, sometimes amplexicaul, margin entire to coarsely serrate in upper part of leaf, upper and lower surface glabrous, tightly covered with small sessile glands, interspersed with larger flat open glands

Morphology Reproductive morphology Inflorescences

Inflorescence 3 - 10 x 2.5 cm, somewhat nodding, bracts 7 mm long, triangular with scarious margin

Morphology Reproductive morphology Flowers Calyx

Calyx straight, c. 20 mm long, regularly 5-toothed, teeth slightly rounded, topped with point, outer surface glabrous, but with one or two large flat glands

Morphology Reproductive morphology Flowers Corolla

Corolla black, narrowly infundibular, 20 mm long, lobes c. 2 mm across

Morphology Reproductive morphology Flowers Androecium Stamens

Stamens inserted at middle part of tube, more or less sessile

Morphology Reproductive morphology Flowers Gynoecium Ovary

Ovary oblong, c. 2 mm long

Morphology Reproductive morphology Fruits

Fruit dark brown, 7 mm long.

Distribution

Goiás, around Niquelindia

Ecology

Campo rupestre on quartz; 485 - 1000 m.

Conservation

Vulnerable. Some of these localities fall outside the protection of the Parque Nacional de Chapada dos Veadeiros and this species could be vulnerable.

Note

Schauer (1847) reduced this species to a variety of Stachytarpheta glauca. He made Pohl's Melasanthus glauca into S. glauca var. serratifolia and M. integrifolius into var. subintegrifolia. There are enough differences between the species, I feel, to maintain S. integrifolius. It has a reed-like stem which is completely different from the stem of S. glauca, and long internodes; it has different shaped leaves and longer bracts. It is known from the modern collections of this species that it is confined to the area around Niquelindia. Unfortunately, at this stage, it is not known where S. glauca can be found.