Wissadula indivisa R.E.Fr. (1911: 211)

Bovini, Massimo G. & Baumgratz, José Fernando A., 2016, Taxonomic revision of Wissadula (Malvoideae, Malvaceae) in Brazil, Phytotaxa 243 (3), pp. 201-234 : 224-225

12. Wissadula indivisa R.E.Fr. (1911: 211) . Type :— PARAGUAY. Inter rio Apa et Aquidaban (22º–23º lat.), Centurion, January 1908 /09, fl., fr., K. Fiebrig 4538 (lectotype: G!, designated here, photo RB!); chosen from syntypes: K. Fiebrig 4058 ( CTES!; G!; RB, photo!) ; K. Fiebrig 4538 (G!).

Subshrubs to shrubs 1–2 m tall, erect. Branches tomentose, whitish, trichomes multiradiate to multiradiate-stipitate. Stipules 0.6–0.7 mm long., linear, free, caducous, velutinous, trichomes multiradiate. Leaves with petiole 1–4,5 cm long, velutinous, trichomes multiradiate; lamina 2.5–10 × 2–6 cm, membranaceous to chartaceous, green-whitish on both surfaces when dry, ovate to cordiform, base subcordate, apex acute to acuminate, margin entire; adaxial surface tomentose, trichomes whitish or ferrugineous, fasciculate and multiradiate, abaxial surface velutinous, trichomes hyaline, multiradiate. Synflorescence frondose-bracteate, pyramidal, subcongested; coflorescence double-raceme, 15–20 cm long; accessory axis reduced, 2(–3) flowers; anthopodium 5–6 mm long, pubescent, trichomes fasciculate. Flowers with pedicel 2–3 mm long, puberulous, trichomes fasciculate; calyx 7–8 mm long, sepals free to the middle below to medium portion, few accrescent in fruit, middle vein evident, adaxial surface velutinous, trichomes fasciculate, abaxial surface hirsutulous, few simple long trichomes; corolla 1.5–1.6 cm diam, yellow, without dark center; staminal column with few trichomes hyaline, simple and fasciculate-stipitate, free portion of filaments ca. 3 mm long, few trichomes hyaline, simple; ovary 4–6 celled, 3 ovules per cell; style ca. 5 mm long. Schizocarp 0.6–0.7 cm diam, 5–6 mericarps, 6–7 × 3–4 mm, spines <1 mm long, constriction inconspicuous, tomentose, trichomes ferrugineous, fasciculate; seeds 3, <2 mm long, hilum glabrate ( Figs. 7d–f ).

Representative Specimens Examined — BRAZIL. Mato Grosso do Sul: Dourados , 19 July 1977, fl., P. E. Gibbs et al. 5304 ( UEC) ; Miranda, fazenda Nova Miranda , 08 June 1987, fl., fr., C. A. Conceição 2089 ( CGMS) ; Porto Murtinho , 24 October 1987, fl., fr., G. Hatschbach & J. M. Silva 51645 ( MBM) .

Etymology— The epithet indivisa probably refers to the barely divided mericarps, which exhibit only a subtle thin constriction.

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

Note— Wissadula indivisa is closely related to W. boliviana and W. macrantha , but it is distinguished by a pale green leaf blade when dry, tomentous indumentum, large and globose flower buds (ca. 7 mm of diameter), and a mericarp with an almost inconspicuous constriction.

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.