Jacquemontia guaranitica Hassl.

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 : 162

4. Jacquemontia guaranitica Hassl.

Repertorium Specierum Novarum RegniVegetabilis 9: 193(1911).

— Type: Paraguay, “ Sierra de Amambay in campis altis siccis Punta Porá ”, XI.1907, E. Hassler 9749 (holo-, G [ G00175717 ] photo! ; iso-, F[F0 BN013760 ] photo!, G [ G00175718 ] photo!, K[K000613016]!, MPU[MPU012117] photo!, P[P00723273]!) .

SELECTED MATERIAL EXAMINED. — Brazil. Mato Grosso.Pedra Preta, 11.X.1938 J.E. Rombouts 264 (IAC, SP, UEC) .

Paraguay. Amambay, 23.X.1994, A. Krapovickas & R.M. Harley 45910 (CTES, SP). — Pedro Juan Cabalero, 16.X.1984, G. Hatschbach & R. Kummrow 48510 (MBM, SP) .

DISTRIBUTION. — Jacquemontia guaranitica is known only from Paraguay in Amambay and Pedro Juan Cabalero, and Brazil in the state of Mato Grosso.

REMARKS

According to Hassler (1911), J. guaranitica differs from J. evolvuloides by its seeds measuring up to 3.5 mm long, while J. evolvuloides seeds are up to 2.2 mm long. We also found that venation on leaves, ciliate margins and glandular trichomes are good characters to separate the species.

Jacquemontia guaranitica is also very close to J. anomala and J.warmingii , all of them with herbaceous habit and scandent stems up to 50 cm long, turning reddish in sicco, sparsely hirsute stems and leaves, lamina elliptic and with 2-3 pairs of eucamptodromous veins.Useful characters for their distinction are shown in Table 1 .