Jacquemontia fruticulosa Hallier f.

Pastore, Mayara, Moreira, André Luiz da Costa, Cavalcanti, Taciana Barbosa & Simão-Bianchini, Rosângela, 2017, A taxonomic study of Jacquemontia evolvuloides (Moric.) Meisn. and related species (Convolvulaceae), Adansonia 39 (2), pp. 149-166 : 156-162

3. Jacquemontia fruticulosa Hallier f.

Bulletin de l’Herbier Boissier 7, App. 1: 45 (1899). — Jacquemontia fruticulosa Hallier f. var. genuina Hassl., Repertorium Specierum Novarum Regni Vegetabilis 9: 160 (1911), nom. superf.).

— Type: Paraguay, “ Valle de l’y-acam entre Paraguari et Valenzuela ”, 5.III.1883, B. Balansa 4400 (holo-, G [ G00175395 ] photo! ; iso-, BM [ BM000089517 ]!, G [ G00175393 , G00175394 , G00175918 ] photo!, K [ K000613020 ]!, P [ P03865849 , P03867344 ]!) .

Jacquemontia fruticulosa Hallier f. f. grandifolia Chodat & Hassl., Bulletin de l’Herbier Boissier ser. 2, 5: 697 (1905). — Jacquemontia fruticulosa var. glandulifera f. grandifolia (Chodat & Hassl.) Hassl. , Repertorium Specierum Novarum Regni Vegetabilis 9: 160 (1911).

— Type: Paraguay, pr. Tobaty, IX.1900, E. Hassler 6106 (holo-, G ; iso-, NY[NY00319282]!,P[P03848960, P03867477]!, S[S12-720]photo!) .

Jacquemontia fruticulosa Hallier f. var. genuina Hassl. , Repertorium Specierum Novarum Regni Vegetabilis 9: 160 (1911).

— Type: Paraguay, Guairá, Villa Rica, “ Cerro Pelado ” (holo-, G [ G00175686 ] ; iso-, NY[NY00319281]!) , syn. nov.

Jacquemontia fruticulosa Hallier f. var. glandulifera f. viscosissima Hassl. , Repertorium Specierum Novarum Regni Vegetabilis 9:160 (1911).

— Type: Paraguay, E. Hassler 6802 (holo-, G ; iso-, NY[NY00319283]!, P[P03536030 ( Fig.6 ), P03848959]!, S[S12-719] photo!) , syn. nov.

Jacquemontia fruticulosa Hallier f. var. glandulifera f. subsericea Hassl. , Repertorium Specierum Novarum Regni Vegetabilis 9: 160 (1911).

— Type: Paraguay, “ Zwischen Rio Apa und Rio Aquidaban. Centurion . schwach bewaldeter, steiniger Berg.”, X.1908, K. Fiebrig 4100 (holo-, G ; iso-, M [ M0184733 ] photo!) , syn. nov.

Jacquemontia fruticulosa Hallier f. var. glandulifera f. angustifolia Hassl. , Repertorium Specierum Novarum Regni Vegetabilis 9: 160 (1911).

— Type: Paraguay, Cordillera , I.1900, E. Hassler 6897 (syn-, G) ; Paraguay, “ In regione cursus superioris fluminis Y-Acá ” I.1900, E. Hassler 7028 (syn-, G ; isosyn-, S [ S12-718 ] photo!, P [ P03848958 ( Fig. 7 )]!) , syn. nov.

SELECTED MATERIAL EXAMINED. — Brazil. Mato Grosso do Sul, Miranda, 12.VI.1973, J.S. Silva 169 (SP).

Paraguay. Cordillera . 2.III.1994. A. Krapovickas & C. L. Cristóbal 45171 (CTES, SP) .

DISTRIBUTION. — In Brazil, this species occurs in Mato Grosso do Sul, and according to Hallier (1899), it is also found in Paraguay and Venezuela.

REMARKS

Jacquemontia fruticulosa is morphologically similar to J. heterotricha , as both have sub-shrubby habit with either erect or scandent stems, stellate trichomes (3-radiate, with subequal rays mixed with 3-radiate with unequal rays), wide to narrowly ovate leaves, and monochasial, few flowered inflorescence. On the other hand, Jacquemontia fruticulosa can be distinguished by the tomentose indumentum, longer bracteoles (5-8 mm long), and shorter peduncles (up to 6 mm long) while J. heterotricha has sparse indumentum, shorter bracteoles (1.5-2.5 mm long), and longer peduncles (1-2 cm long).

Hassler (1911) created several varieties and forms distinguished by the density of their glandular hairs and leaf size, however, upon examining abundant material, we consider that these characters are highly variable amongst and within populations, and we opt to synonymize them.

Figures

FIG. 6. — Isotype of Jacquemontia fruticulosa var. glandulifera f. viscosissima (P03536030).

FIG. 7. — Isosyntype of Jacquemontia fruticulosa var. glandulifera f. angustifolia (P03848958).