Hubera senjiana R.Muralidharan, Naras. & N.Balach., 2015

Muralidharan, Ramachandran, 2015, A new species of Hubera (Annonaceae) from Peninsular India, Phytotaxa 205 (1), pp. 129-134 : 129-132

publication ID

https://doi.org/ 10.11646/phytotaxa.207.1.8

DOI

https://doi.org/10.5281/zenodo.13637829

persistent identifier

https://treatment.plazi.org/id/4259907E-FF93-FFB4-FF61-C6240AC0FBE2

treatment provided by

Felipe

scientific name

Hubera senjiana R.Muralidharan, Naras. & N.Balach.
status

sp. nov.

Hubera senjiana R.Muralidharan, Naras. & N.Balach. View in CoL , sp. nov. ( Figs. 1a–h View FIGURE 1 , 2a–b View FIGURE 2 )

Type: — INDIA. Tamil Nadu: Gingee, Villupuram District , Devathanampettai , Pakkamalai Reserve Forest , 12° 10.146’ N, 79° 19.280’ E, 250 m, 17 August 2008, Muralidharan & Narasimhan 7210 A, (holotype MH!; isotypes,7210 B-C, CAL!) GoogleMaps .

Diagnosis: The new species differs from Hubera jenkinsii (Hook.f.& Thomson) Chaowasku in having usually smaller leaves and shorter petioles, more fruitlets (35–40) and a shorter and slenderer stipe ( Table 1).

Trees, ca. 5 m high, bark develops even on young branchlets, blackish–grey, apical bud covered by rusty brown tomentum. Leaves elliptic–oblong, 6.5–13.5 × 2.0–4.0 cm, oblique or rounded at base, undulate, acute to acuminate at apex; shiny above; midrib raised below, grooved above; pubescent on margins of midrib on the lower side of leaf; lateral veins ca. 5 pairs; domatia absent; petiole ca. 5 mm long; pubescent. Cymes axillary, 1–2–flowered, inflorescences on young and old, leafless branches, pendulous; flowers ca. 3.5 cm across, pale yellowish green in vivo; pedicel slender, ca. 7 mm long; puberulous. Peduncle bract 1, ovate, ca. 1 mm long; rusty pubescent on the outer side. Sepals 3, ovate to sub orbicular, ca. 3–4 mm long and recurved at margin, rounded at apex, hirsute outside, glabrous inside. Petals 6; outer 3, elliptic-obovate, 1.5–2.0 × 0.7–1.0 cm, entire at margin, acute–obtuse at apex, puberulous on the outer side; inner 3, elliptic–oblong, 1.4–2.2 × 0.5–1.0 cm, entire at margin, obtuse at apex, yellow tinged at base in vivo; puberulous on the outer side; faintly nerved in the middle. Stamens many, pale yellow in vivo; filaments ca. 1 mm long; hirsute; connectives polygonal, flat at top, ca. 1 mm across; anthers oblong, ca. 1.2 × 1.0 mm. Carpels ca. 50, oblong, each ca. 2 × 1 mm long, hirsute on ovary; ovule 1, basal, style indistinct; stigma capitate. Torus slightly raised, hairy. Fruitlets 20–30, densely packed, ellipsoid, 5 × 3 mm; pointed at apex; glabrous; stipe slender, ca. 5 mm long; fruiting pedicel slender, ca. 1 cm long; fruitlets red in vivo when ripe; seed 1, 2 × 1 mm, ellipsoid, brown in vivo; endosperm ruminations spiniform.

Flowering & Fruiting:— August–March

Local Name:— Kothukala (Tamil)

Etymology:— The species is named for the type locality, namely Senji (Gingee).

Distribution and Ecology:— Endemic to Gingee hills, Villupuram District, Tamil Nadu, India. It is rare, growing in dry rocky soils along forest fringes associated with Phyllanthus polyphyllus , Stenosiphonium russellianum and Justicia beddomei , at an elevation of 200– 300 m.

Other specimens examined:— INDIA. Tamil Nadu: Gingee, Villupuram District, Devathanampettai, Pakkamalai Reserve Forest, 12° 10.146’ N, 79° 19.280’ E, 250 m, 23 March 2012, Muralidharan & Narasimhan 7674. Gingee, Villupuram District, Devathanampettai, Pakkamalai Reserve Forest, 12°10.146’ N, 79°19.280’ E, 250 m, 2 October 2013, Balachandran 12801.

Notes:— Hubera senjiana is morphologcally most similar to H. jenkinsii , a northeastern Indian species, than it is to H. cerasoides or H. korintii , which are widely distributed in southern India.

A

Harvard University - Arnold Arboretum

MH

Naturhistorisches Museum, Basel

CAL

Botanical Survey of India

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Magnoliales

Family

Annonaceae

Genus

Hubera

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