Archive for April, 2010

Ardisia elliptica

Ardisia elliptica Thunb.

Recent Synonyms: None relevant.

Status: Native; Endangered. Cultivated.

Growth Form or Habit: Tree.


Sims Ave, Cultivated; 2010.

Trunk
Sims Ave, Cultivated; 2010.

Branching: Base of branch swollen.

Flowers
Sims Ave, Cultivated; 2010.

Ripen fruits
Sims Ave, Cultivated; 2010.

More pictures can be found at

(1) The Plant Observatory website

Comments (2)

Paederia foetida

Paederia foetida L.

Recent Synonyms: None relevant.

Status: Native; Common. Cultivated.

Growth Form or Habit: Climber.

Leaves: A foul stench from crushed leaves.

Flowers
Geylang Road, Urban; 2010.

IMG_6838
Mandai, beside now defunct railway; 2010.

More pictures can be found at

(1) The Plant Observatory website

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Planchonella obovata

Planchonella obovata (R. Br.) Pierre

Recent Synonyms: Pouteria obovata (R. Br.) Baehni

Status: Native; Vulnerable. Cultivated.

Habit
Coney Island; Coastal; 2010.

Growth Form or Habit: Tree

Leaves
Geylang Road; Cultivated; 2010.

IMG_6482
Southern Island; Coastal; 2011.

More pictures can be found at

(1) The Plant Observatory website

Comments (1)

Calophyllum ferrugineum

Calophyllum ferrugineum Ridl.

Recent Synonyms: None relevant.

Status: Native; Common. Cultivated.

Growth Form or Habit: Tree

Leaves Sims Way, Cultivated; 2010.

Hairs along mid vein
Sims Way, Cultivated; 2010.

Leaves: Mid vein at the underside of the leaf have tiny brown hairs that can be brush off easily.

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Cayratia trifolia

Cayratia trifolia (L.) Domin

Recent Synonyms: Vitis trifolia L.; Columella trifolia Merrill; Cissus carnosa Lam.

Status: Native; Vulnerable.

Growth Form or Habit: Herbaceous climber.

Habit
National University of Singapore, 2010.

Leaves
National University of Singapore, 2010.

Leaves: 3-foliolate, margin crenate; terminal leaflet lamina, obovate, oblong to elliptic, 5.5–7 cm by 3.5–4.5 cm, petiolule 1–2 cm long, lateral leaflet lamina elliptic, 3.5–5.5 cm by 3–4 cm, petiolule 4–10 mm long; lamina minutely hairy above, glabrous below, coriaceous to chartaceous, nerves red; petiole 2.5–6 cm long, red.

Stem: Stem up to 1 cm across, glabrous, red when young, corky with age, tendril 2–3-furcate, red, opposite leaf, characteristic of all members of the family.

Flowers: In a dichotmous cyme without tendril, ca. 2 cm across, axis red, inserted in leaf axil, peduncle ca. 10–13 cm long.

IMG_5244
Pulau Semakau; Secondary forest; 2011.

Fruits: Berry oblate to discoid, 1.5–2 cm across by 1–1.5 cm, with 2–4 seeds per fruit; seed 1 cm by 0.5 cm.

Habitat: Lowland dipterocarp and swamp forest fringe, coastal, inbaited area and wasteland.

Occurrence: Labrador Park, Western Catchment, Lazarus Island, Lower Seletar Reservoir, Kheam Hock Road.

Distribution: Zimbabwe, Gabon, Madagascar, India, Myanmar, Vietnam, Cambodia, Thailand, Malesia, and Queensland, Australia.

Reference:

(1) Latiff, A. 1981. Studies in Malesian Vitaceae, 5. The genus Cayratia in the Malay Peninsula. Sains Malaysiana, 10(2): 129–139.

(2) Yeo, C.K. 2001. The Vitaceae and Leeaceae of Singapore. Honours Thesis, National University of Singapore. 96 pp.

More pictures can be found at

(1) The Plant Observatory website

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Leucaena leucocephala

Leucaena leucocephala (Lam.) de Wit

Recent Synonyms: None relevant.

Status: Exotic; Naturalised. Cultivated.


Kallang Riverside Park; 2010.

Growth Form or Habit: Tree.

Leaves
Along Kallang River; 2010.


Punggol; Secondary forest; 2010.

Fruits
Along Kallang River, 2010.

More pictures can be found at

(1) Urban Forest website

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Gymnanthemum amygdalinum

Gymnanthemum amygdalinum (Delile) Sch. Bip. ex Walp.

Recent Synonyms: Vernonia amygdalina Delile

Status: Exotic; Cultivated only.

Habit
Kallang Area, 2010.

Growth Form or Habit: Shrub.

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