Hyptis lappacea Bentham (1833: 103)

O’Leary, Nataly, 2015, Synopsis of subtribe Hyptidinae (Lamiaceae) in Argentina, Phytotaxa 233 (3), pp. 201-235 : 223-224

3.8. Hyptis lappacea Bentham (1833: 103) . Fig. 14

≡ Mesosphaerum lappaceum (Benth.) Kuntze (1891: 256) . Type (lectotype designated by Epling 1937: 310):— BRAZIL. Sine loc., F. Sellow s.n. (K 488398!).

= Hyptis cinerea Morong in Morong & Britton (1893: 200) ≡ Mesosphaerum cinereum (Morong) Briq. , nom. illeg. Type (lectotype designated here):— PARAGUAY. “Central Paraguay ”, Luque, 8 December 1889, T. Morong 304 (NY 624!).

= Hyptis cinerea Morong var. stenophylla Briquet (1907: 616) . Type (lectotype designated here):— PARAGUAY. “In regione cursus superioris fluminis Apa”, November, E. Hassler 8027 ( G 0307302 !; isolectotypes BM 000087069 !, G 00307301 !, G 00307300 !, G 00307299 !, MPU 015342 !, P 00720973 !, UC935091 !).

Perennial herbs, up to 1.5 m high, stems pilose with hispid appressed hairs. Leaves with petiole, 0.5–4 cm long, elliptic or narrow ovate blade, 3–15 × 0.5–2(–4) cm, acute apex, acute attenuate base, short hispid-strigose pubescence uniformly distributed on both surfaces, sometimes sub-glabrous on mature leaves, irregularly serrate margin. Capitula 1–1.8 cm diam., many-flowered, solitary, axillary to superior leaves, peduncle 1–2 cm long. Bracteoles 6–10 mm long, narrow ovate, acuminate, strigose. Calyx 5 mm up to 8 mm in fruit, exterior pilose with some sessile glands, interior glabrous; teeth 2–3.5 mm long, sub-equal, aristate. Corolla white or pink color, 5–10 mm long. Nutlets ovoid, 1–1.5 mm long, dark brown, smooth.

Remarks: — The author of H. cinerea mentioned three specimens (syntypes) in the protologue. A lectotype is here designated following Epling’s choice (in sched.). Morong mentioned three specimens (syntypes) in the protologue of H. cinerea var. stenophylla , a lectotype is here designated among them.

Distribution and habitat: — Hyptis lappacea is a widely distributed species, frequently found in the northern Argentine territory, also present in Bolivia and Paraguay, northern Uruguay and southern Brazil.

Selected specimens examined:— ARGENTINA. Chaco: Sgto. Cabral, Pque. Nac. Chaco, 4 March 1989, Múlgura 987 (SI!). Corrientes: Monte Caseros, Ao. El Seilo, 14 March 1947, Nicora 4539 (SI!). Entre Rios: Concórdia, Est. Agron., 18 January 1927, Burkart 901 (SI!). Formos: Formosa, ruta 11, N. Ao. Francesa Cue, 6 January 1980, Guaglianone 351 (SI!). Jujuy: Ledesma, NE Calilegua, 23 February 1985, Kiesling 5572 (SI!). Salta: Gral. San Martín, 6 January 1980, Pedersen 12879 (SI!). Santa Fe: San Justo, Cañadita, 24 November 1945, Boelcke 1338 (SI!). Tucumán: Famaillá, camino a Río Colorado, 21 November 2002, Zuloaga 7906 (SI!).

Figures

FIGURE 14. Hyptis lappacea Benth. A. Plant branch. B. Bracteole. C. Flower. D. Corolla expanded, inner view. E. Nutlet, ventral view. Image from Crespo (1979), modified, reprinted with permission.