Marsypianthes hassleri Briquet (1907: 620)

O’Leary, Nataly, 2015, Synopsis of subtribe Hyptidinae (Lamiaceae) in Argentina, Phytotaxa 233 (3), pp. 201-235 : 231

4.2. Marsypianthes hassleri Briquet (1907: 620) . Fig. 18 A–F

Type (first-step lectotype designated by Mallo & Xifreda 2004: 204; second-step lectotype designated here):— PARAGUAY. “Prope Caaguazú in campis combustis, mart.”, E. Hassler 9193 ( G 381106 !; isolectotypes G 381107 !, G 381111 !, G 381113 !, P cb 720855!, NY cb 00429290!) .

Perennial herb, erect, woody at the base, up to 0.5 m high, glandular sticky hairs and multiseriate hairs. Leaves with a petiole 0.4–0.9 cm long, elliptic blade, 0.6–2.2 × 1 cm, serrate margin, obtuse apex, cuneate base, densely pilose pubescence on both surfaces. Sub-globose cymes, 1–2 cm wide, sessile or with a short peduncle, bracteoles narrow elliptic, 0.4– 0.1 mm long. Calyx 6–8 mm long, up to 12 mm long in fruit. Corolla tube 10–17 mm long. Nutlets 2–3 mm long.

Remarks: — Mallo & Xifreda (2004: 204) designated as lectotype of M. hassleri a specimen housed at Herb. G, but they did not selected any of the four duplicate sheets housed at G. Consequently, we narrow here their choice in a second step lectotype, following Art. 9.17 of ICN ( McNeill et al. 2012; McNeill 2014).

Distribution and habitat: — Marsypianthes hassleri is distributed in southern Brazil, Paraguay and NE Argentina, in Misiones province. It inhabits sandy-clay, moist soils.

Selected specimens examined:— ARGENTINA. Misiones: San Ignacio, Teyú Cuaré, 20 October 1996, Morrone et al. 1685 (SI!).

Figures

FIGURE 18. Hyptis uliginosa A.St.-Hil. ex Bentham (from Keller 141, CTES and Keller 4976, CTES). A. Plant general aspect. B. Calyx.