Flacourtia rukam Zoll. & Moritzi

Flacourtia rukam Tree

(Hidayat & Abdurrahman, 2017)

Flacourtia rukam Leaves

(Hidayat & Abdurrahman, 2017)

Flacourtia rukam Fruit

(Hidayat & Abdurrahman, 2017)

Regnum   : Plantae
Division   : Magnoliophyta

Classis     : Magnoliopsida

Ordo        : Malpighiales

Familia    : Salicaceae / Flacouritiaceae

Genus      : Flacourtia

Species    : Flacourtia rukam Zoll. & Moritzi

Description

Small or medium sized trees, about 4-15 m tall, usually armed with simple and branched spines on the trunk, spines up to 10 cm long, branches with sympodial growth. Native of Indonesia and the distribution is around southeast asia and tropical area. 

Leaves simple, alternate, ovate-oblong, oblong-elliptic, about 5-18 x 3-8 cm across, base cuneate to rounded, sometimes 3-5 pliveined, margin coarsely serrate-crenate, apex acute to shallow acuminate, leaves often clustered towards apices, lateral veins 4-9 on either side of the midrib, impressed above and slightly prominent beneath, glabrous above, glabrous beneath or pubescent on the veins beneath, thicker near the midrib and diminishing towards the margins, lamina brownish red and drooping when young, chartaceous to subcoriaceous, shiny, petiole reddish, minutely hairy, about 5-8 mm long. Inflorescence in shortly pedunculate axillary raceme fascicles, bracteate, puberulous (Ganeshaiah, K. N., n.d.). 

Flowers unisexual (dioecious), hypogynous, greenish yellow, pedicels articulate, hairy, about 3-4 mm long, sepals 3-5, imbricate, ovate, apex obtuse, hairy inside, sparsely hairy outside, petals absent, extrastaminal disc, with distinct glands inserted before sepals. Male flowers: Stamens numerous, glabrous, filaments filiform, base minutely hairy, about 3-4 mm long, anthers 2 loculed, versatile, globular, dorsifixed, pollen fleshy, tricolporate, reticulate, pistillode absent. Female flowers: Ovary superior, urceolate, surrounded by disc, staminodes occasionally present, style 5-6, little or not connate, stigma slightly recurved, shortly bilobed. Fruit indehiscent berry, ellipsoid-globose, about 5-10 mm across, green, red and turning to purplish red when ripe, with 2 superposed pyrenes in per locule, 4-7 angled when dried. Seeds 6-12, ovoid-obovoid, compressed, non arillate (Ganeshaiah, K. N., n.d.).

Rukam is edible fruit. 

Location : Zone 2 UPI Botanical Garden 

Please cite this article as:

Azis, A. M. (2019). UPI Seed Plants: Flacourtia rukam Zoll. & Moritzi Online at 

https://upiseedplants-one-aldi.blogspot.com/. Accessed (Date)