Clidemia hirta ( Linnaeus 1753: 390 ) Don (1823: 309)

Silva-Gonçalves, Kelly Cristina Da, Baumgratz, José Fernando A. & Nunes-Freitas, André Felippe, 2014, Melastomataceae in a continental Atlantic Forest island from southeastern Brazil, Phytotaxa 183 (2), pp. 61-92 : 67

publication ID

https://doi.org/ 10.11646/phytotaxa.183.2.1

DOI

https://doi.org/10.5281/zenodo.5149349

persistent identifier

https://treatment.plazi.org/id/8A04314C-FF97-FFAC-FF50-FDEAFC0DFA3D

treatment provided by

Felipe

scientific name

Clidemia hirta ( Linnaeus 1753: 390 ) Don (1823: 309)
status

 

1.1. Clidemia hirta ( Linnaeus 1753: 390) Don (1823: 309) . [ Figs. 3a View FIGURE 3 , 4a–d View FIGURE 4 ]

Shrubs 0.6–1.5 m; indumentum of the branches, leaves, inflorescences and hypanthium sparsely setose, setulose and furfuraceous-stellulate, in addition to glandular-setulose trichomes, glandular head usually caducous. Petioles 0.6–2.2 cm long; blade 7.9–13 × 4.6–7.2 cm, papyraceous, ovate to oblong-ovate, base obtuse, apex acute to acuminate, margin crenulate, ciliolate; adaxial surface bullate, abaxial surface also with stellate-pedicellate trichomes; acrodromous veins 5, the inner 3–4 mm suprabasal. Thyrsoids 1.5–2.8 mm long; bracts 2–3 × 1–1.5 mm, triangular-acuminate, bracteoles 1.5–2.3 × 0.6–1.1 mm, ovate-acuminate. Hypanthium 3–5.1 × 2.5–4.1 mm, campanulate; inner torus with an irregular tooth-fimbriated membranaceous ring; calyx with external lobes 3–4.8 × 0.1–0.5 mm, subulate, internal lobes slightly denticulate or reduced to a membranaceous and sinuous ring; petals 6.5–7 × 2.8–3.1 mm, obovate, apex rounded; stamens with filaments 1.2–2.5 mm long; anthers 3.5–5 mm long, connective prolonged ca. 0.1 mm, appendage slightly bilobed; ovary 2.8–4.5 × 1.1–2 mm, partly inferior, 5-celled, glabrous; style 5.7–7.2 mm long. Bacidium 5–8 × 3.1–6 mm, setose or glandular-setulose, glandular head caducous or not; seeds 0.4–0.9 × 0.1–0.5 mm.

Specimens examined:— 7.VII.2007, fr., K.C. Silva 16 (RB, RBR) ; 23.II.2008, fl., fr., K.C. Silva 29 (RB, RBR) ; 29.VII.2008, fl., fr., K.C. Silva 42 (RBR) ; 9.I.2010, fl., fr., K.C. Silva 61 (RBR) ; 22.I.2010, fl., fr., K.C. Silva 67 (RBR) .

Distribution:— Clidemia hirta is widely distributed species from Central America to Argentina ( Baumgratz et al. 2006). In Brazil it is found in almost all states, usually in open areas, sunny and very anthropized habitats ( Baumgratz et al. 2006; Michelangeli & Reginato 2012). It is classified as Vulnerable for the municipality of Rio de Janeiro ( Baumgratz 2000). In Malaysia, Hawaii, Tanzania, and Madagascar it has become a naturalized weed ( Almeda 2009, Gleason 1939, Wurdack 1962, 1980).

Comments:—This is the first record for Marambaia, where C. hirta only occurs in Dense Submontane Ombrophilous Forest. It is distinguished mainly by the inner torus with an irregular tooth-fimbriated membranaceous ring, and calyx with slightly denticulate internal lobes or reduced to a membranaceous and sinuous ring. Additional illustrations in Baumgratz et al. (2006), and Matsumoto & Martins (2009).