Anthurium hatschbachii Gonçalves (2011: 64–65)

Rocha, Lilien Cristhiane Ferneda, Cardozo, Ana Paula, Smidt, Eric De Camargo & Temponi, Lívia Godinho, 2015, Emended description of Anthurium hatschbachii (Araceae) and a new record for Santa Catarina State, Brazil, Phytotaxa 192 (1), pp. 54-57 : 54-56

Anthurium hatschbachii Gonçalves (2011: 64–65) . ( Fig. 1a–f )

Type: — BRAZIL. Paraná: Guaratuba, Itararé River, 12/1962, fl., G. Hatschbach 9689 (holotype MBM!).

Terrestrial or epiphytic herb; stem erect, internodes 0.3–0.6 cm. Cataphylls chartaceous, entire, persistent at the apex of the stem, 4.5–11 cm long, greenish to white-reddish when young, brown when senescent. Petioles 21.8–61.6 cm, green to green with red base; straight, 1–sulcate, margins obtuse adaxially; rounded abaxially; with white or greenish glandular punctuations; geniculum 1–3.3 cm long, thicker than petiole, green in live and nigrescent in dried material, with white or greenish glandular punctuations. Blades ovate, 25.5–38.4 × 12–22.3 cm, base cordate, basal lobes imbricated, chartaceous, glossy to semiglossy, discoloured, white or greenish glandular punctuations present on both surfaces. Midrib adaxially obtuse at base, round at apex, middle part more prominent, abaxially round, more prominent at base. Primary lateral veins 13–19; strongly sunken adaxially, prominent abaxially; basal ribs 2 per lobe; acroscopic veins absent, basioscopic veins absent, submarginal collective vein 0.8–2.3 cm from margin on each side. Peduncles cylindrical, 22–48 cm, longer or shorter than petiole, green. Spathes lanceolate to oblong, 3.7–9.5 × 0.8–1.5 cm, forming an acute to obtuse angle at the junction with the peduncle, margins meet on the peduncle at acute or obtuse angle, green to pinkish, decurrency absent. Spadices cylindric, 4–10 × 0.3–0.7 cm, purple at pre–anthesis, vinaceous to pinkish at anthesis, green to pale brown at post–anthesis, stipe 0.1 cm long, acroscopic maturation. Placentation axial–apical, presence of trichomes at ovary septum. Immature berries green.

Anthurium hatschbachii is recognised by its cordate leaves and glandular punctuations ( Fig. 1b ) on both surfaces of leaves, midrib, geniculum and petiole. It is morphologically similar to other cordate-leaved species of Anthurium that occur in eastern Brazil: A. augustinum Koch & Lauche (1855: 7) , A. laucheanum Koch (1857: 191) , A. lhotzkyanum Schott (1860: 491) , A. lucidum Kunth (1841: 73) , A. maximilianii Schott (1862: 5) and A. parvum Brown (1880: 588) , but can be easily distinguished from all of these by the presence of white or greenish glandular punctuations on both surfaces of the leaves, midrib, geniculum and petiole.

Anthurium hoehnei Krause (1925: 271) is similar to A. hatschbachii because it also has glandular punctuatios, but differs by blades with basal lobes not imbricated and stipe 1–4.5 cm long in contrast to A. hatschbachii with basal lobes imbricated and stipe 0.1 cm long.

Material examined: — BRAZIL. Paraná: Guaratuba, Itararé River , December 1962, 1000 m, G. Hatschbach 9689 (holotype MBM!) ; idem, Serra de Araçatuba, 22 December 1959, 1050 m, G. Hatschbach 6644 (paratype MBM!; RB!; MOBOT). Santa Catarina: Joinville, Morro da Tromba , 26°12’43”S – 48°57’28”W, 07 July 2012, 800–950 m, A. P. Cardozo 63 ( UPCB!) ; idem, 07 July 2012, 800–950 m, A. P. Cardozo 62 ( UPCB!) .

Figures

FIGURE 1. Anthurium hatschbachii—a. Habit; b. Glandular punctuations on a leaf; c. Leaf blade: left adaxial, right abaxial; d. Stem short, prophylls and cataphylls entire; e. Spadix; f. Spadix detail with flower at anthesis. Photos by M.E. Engels (a); L.C. Ferneda Rocha (b, c, d); E.C. Smidt (e, f).