Wissadula macrantha R.E.Fr., Kungl. (1908: 67)

Bovini, Massimo G. & Baumgratz, José Fernando A., 2016, Taxonomic revision of Wissadula (Malvoideae, Malvaceae) in Brazil, Phytotaxa 243 (3), pp. 201-234 : 226

14. Wissadula macrantha R.E.Fr., Kungl. (1908: 67) . Type :— PARAGUAY. Gran Chaco, Loma Clavel, 23º 20’, ad margines silvarum, November 1903, fl., E. Hassler 2570a, (lectotype: G, designated by Krapovickas 2006; isolectotypes: BM!, P).

Wissadula grandifolia Bak. f. var. macrantha (R. E. Fr.) Shinners (1962: 107) .

Subshrubs to shrubs 1–2 m tall, erects. Branches ferrugineous, puberulous, trichomes fasciculate and fasciculate-stipitate, caducous. Stipules 0.6–0.7 cm long, elliptic-lanceolate, free, caducous, tomentose, trichomes fasciculate and fasciculate-stipitate. Leaves with petiole 1–7.5 cm long, puberulous, trichomes fasciculate and fasciculate-stipitate; lamina 2–12 × 2.5–9.5 cm, membranaceous to chartaceous, green discolor, cordiform, base cordate to subcordate, apex acute to extremely cuspidate, margin entire; adaxial surface hispid, trichomes ferrugineous, simple, appressed, rarely fasciculate, abaxial surface velutinous, trichomes ferrugineous, multiradiate. Synflorescence frondose-bracteate, pyramidal, lax; coflorescence double-racemes, 15–20 cm long; accessory axis reduced, 2(–3) flowers; anthopodium 0.9–1 cm long, velutinous, trichomes fasciculate minute or not, ferrugineous. Flowers with pedicel 9–10 mm long, indumentum and trichomes similar to those of the anthopodium; calyx 4–5 mm long, sepals free to the middle below to medium portion, not accrescent in fruit, adaxial surface velutinous, trichomes fasciculate, minute or long, abaxial surface sericeous, trichomes simple, long; corolla 1.1–1.3 mm diam, yellow, without dark center; staminal column with few trichomes hyaline, simple and fasciculate-stipitate, free portion of filaments ca. 3 mm long, rare trichomes hyaline, simple; ovary 4–5 celled, 3 ovules per cell; style ca. 4 mm long. Schizocarp 0.7–0.8 cm diam, 4–5 mericarps, 5–6 × 3–4 mm, muticous, constriction inconspicuous, pubescent, trichomes glandular minute; seeds 3, ca. 2 mm long, hilum tomentose, trichomes simple ( Figs. 7g –i ).

Representative Specimens Examined — BRAZIL. Mato Grosso do Sul: Aquidauana , 20 March 2003, fl., G. Hatschbach et al. 74963 ( MBM) ; Bodoquena , 16 May 2002, fl., fr., G. Hatschbach et al. 73009 ( CTES, MBM, SPF) ; Corumbá, July 1911, fl, F. C. Hoehne 3013 ( BM, R). Miranda , 08 June 1987, fl., fr., C. A. Conceição 2090 ( CGMS) ; Ladário , 05 June 1986, fl., A. Rêgo s.n. ( CGMS 2400 ) ; Lagoão Fechado , 18 March 2003, fl., fr., G. Hatschbach et al. 74876 ( MBM) ; Porto Murtinho , 15 March 2004, fl., fr., G. Hatschbach et al. 77162 ( CTES, MBM, SPF) .

Etymology— The epithet macrantha is an allusion to its large flowers.

Distribution— The species occurs in Bolivia, Paraguay, and Brazil. In Brazil, it is restricted to the State of Mato Grosso do Sul.

Note— It resembles W. parviflora by a similar type of indumentum on the adaxial surface of the leaves. However, in W. macrantha , the base of the leaves may be subcordate, the flowers are larger than that of W. parviflora and the fruits muticous.

Figures

FIGURE 7. Wissadula hernandioides (L´Hér.) Garcke. a. fertile branch. b. detail of branch. c. fruit. W. indivisa R.E.Fr. d. fertile branch. e. detail of branch. f. fruit. W. macrantha R.E.Fr. g. fertile branch. h. detail of branch. i. fruit. W. paraguariensis Chod. j. fertile branch. k. detail of branch. l. fruit. (a–c: Bovini 2567, RB; d–f: Gibbs 5304, UEC; g–i: Hatschbach 74963, MBM; j–l: Hatschbach 77168, CTES, MBM). Scale bars: a, d, g, j = 5 mm; b, c, e, f, h, I, k, l = 2 mm.