Asterogyne yaracuyense

Family: Arecaceae    Palm Tree

Common Name: None known

Cold Hardiness Zone: 10b     View the UK and US zone maps

Asterogyne yaracuyense Information

Stem solitary, erect, sometimes basally decumbent, 3-6 m tall, 5-8 cm diam., brown, occasionally with basal and lateral vegetative branches; internodes 2-3 cm long; aerial roots forming a short basal cone; pneumatodes very short. Leaves 18-25(-31), reddish brown when young, green when mature, the older ones briefly persistent; sheath 12-30 x 7-9 cm, reddish brown tomentose, the margins slightly fibrous; petiole (18-)25-35 x 1-1.5 cm, flat to channelled adaxially, angled to rounded abaxially, the indumentum same as on sheath, the margin slightly fibrous near base; midvein 56-95 cm x 0.3-0.6 cm, loosely brownish grey tomentose, flat to channelled adaxially, rounded to flat abaxially; blade 0.70-1.20 x 0.23-0.30 m, dull green adaxially, greyish green and covered with a whitish farinose indumentum abaxially, deeply bifid at apex for ca. 42 cm; primary veins 40-70 per side, emerging at 25-30 angle at midvein, mostly prominent abaxially, loosely brown tomentose. Inflorescence branched to 1 order; peduncle 85-95 cm long, 1.5-2 cm diam., dorsiventrally compressed; prophyll 27-35 cm long, 2-3.5(-5) cm diam., chartaceous, inserted at base of peduncle or 1 cm above it; peduncular bracts 2, with indumentum same as on prophyll, chartaceous, brown; first peduncular bract 45-58 x 2-2.5(-4) cm, inserted 3 cm above base of peduncle, second peduncular bract 58-60 x 2.5-3.5 cm, inserted 4 cm above base of peduncle; inflorescence rachis 5-10 cm long, 0.5 cm diam., dorsiventrally to irregularly compressed, pale green at anthesis, almost glabrous; rachillae 9-16, slightly peiident, the same colour as inflorescence rachis, glabrous; basal rachillae 28-32 cm long, 0.5 cm diam.; middle rachillae 27-29 cm long, 0.5 cm diam.; apical rachillae 24-28 cm long, 0.5 cm diam., the sterile apex acute, 0.2-0.6 cm; flower pits spirally arranged, 2-3 mm apart from each other, covered with an inflexed lower lip, 2.5-3 x 2-5 mm. Staminate flowers obovoid, 6-8 mm long, 2 mm diam., slightly fragrant, white at anthesis, the pedicel to 1 mm long; sepals oblong-obovoid, 4 x 1-2 mm; petals oblong-obovoid, 6-7 x 1.5-2 mm; stamens 8-10; filaments united into a tube to 4 mm long, the free parts 3-3.5 mm long, 0.5 mm diam., white, conspicuously thinner at apex, lacking a papillate epidermis; connective 1 mm long; thecae 1.1-1.2 mm long; pistillode 2 mm long. Pistillate flowers oblong-ovoid in bud, 4 mm long, 3 mm diam., the pedicel to 1 mm long; sepals oblong-ovate, 3 x 2- 2.5 mm; petals oblong, 3 x 2 mm; ovary I mm long, 1.2 mm diam.; style 1.5 mm long; stigmatic branches 1 mm long; staminodial tube 2 mm long, the lobes 7-8 or sometimes fewer by congenital union of 2 of them, 2 mm long. Fruits not known.

Work in progress
Species Information currently being revised!


Native to, Venezuela

Known only from the understory of the Cerro La Chapa cloud forest, in the northern Coastal Cordillera, state Yaracuy, Venezuela; recently reported on the Cerro El Zapatero of the same state; between 1200-1400 m.

Location: Venezuela (10.199143°N, -68.604813°E)

Map may not represent the complete natural distribution. (Markers display observation data).

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