Tachia schomburgkiana

Description

Shrub or small tree, up to 4 m high, sparsely branched. Branches 0.3-0.5 cm in diam., terete, not winged; internodes 5-10 cm long. Leaves petiolate, arranged along stem; petiole 0.6-1.5 cm long; blade chartaceous, narrowly ovate to ovate-elliptic, 6.5-19 x 3-8.5 cm, margin flat, apex strongly acuminate, base attenuate. Flowers solitary, erect; calyx yellow to yellowish green, 26-40 x 7-11 mm, lobes ovate, 12-20 x 3-4 mm, margin membranaceous, apex long-acuminate; corolla yellow to yellowish green, tubular to funnel-shaped, 65-74 mm long, 7-12 mm wide at mouth, lobes ovate, 9-13 x 4-6 mm, apex acuminate, often dark green; stamens exserted from corolla mouth, filaments 40-50 mm long, straight, anthers yellow, elliptic, 3-4 mm long, slightly bent after anthesis; pollen exine reticulate; pistil 48-65 mm long, ovary 8-15 mm long, style 40-53 mm long, stigma lobe elliptic, 2-3 x 1-2 mm. Fruit erect, green when immature, brown when dry, ellipsoid, 22-25 x 5-6 mm; seeds not seen.

Distribution

E Venezuela: present Guyana, Republic of: present present Pakaraima Mts: present
E Venezuela, Guyana (Pakaraima Mts.); 37 collections studied, of which 31 from Guyana (GU: 31).

Common Name

English (Guyana, Republic of): kunuk-wai, schomburgk’s tachia

Phenology

Flowering specimens collected in , fruiting specimens in .

Synonymy

Tachia schomburgkiana Benth. in Hooker, J. Bot. Kew Gard. Misc. 6: 204. 1854 sec. JEANETTE ALLOGIO, LAURA COBB, JASON R. GRANT & al., 2012
    • Holotype: Guyana, on the mountains between Roraima and the Cuyuni, Ri. Schomburgk 1546.

Images

Specimens

CountryDateCollector + collecting numberHerbariaTypeScanDerivatives
Ri. Schomburgk 1546
Citation: Guyana, on the mountains between Roraima and the Cuyuni, Ri. Schomburgk 1546.

Specimen summary: Guyana, on the mountains between Roraima and the Cuyuni, Ri. Schomburgk 1546.
Holotype of Tachia schomburgkiana Benth.

Guyana, Republic ofPipoly et al. 10541B, L, US, NY
Citation: Guyana, Republic of, Cuyuni-Mazaruni, Pipoly et al. 10541.

Specimen summary: B

Specimen summary: L

Specimen summary: NY

Specimen summary: US

Guyana, Republic ofTillett & Tillett 45447NY
Citation: Guyana, Republic of, Upper Mazaruni, Tillett & Tillett 45447.

Specimen summary: NY