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Published In: Journal of South African Botany 49(4): 403. 1983. (J. S. African Bot.) Name publication detail
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 10/18/2016)
Description: Plants 200–350 mm high. Corm moderately deep-seated, subglobose, 15–30 mm diam.; tunics of fine–moderately coarse-textured fibres, extending into a fibrous and papery collar. Stem flexed outward near base then suberect, simple or with up to 3 suberect branches. Leaves 5–7, linear to narrowly lanceolate or falcate, slightly succulent, 50–120 × (1.5–)2–4 m, acuminate, with translucent main vein and sometimes 1 additional vein, margins translucent, cauline leaves bract-like and often dry. Spike erect, almost 2-ranked, rather lax, 5–9-flowered; bracts green and leathery becoming dry and membranous above or dry entirely, margins membranous, brown, speckled dark brown at tips, outer 5–10 mm long, 2 or 3-toothed or subacute, inner ± equal or slightly shorter, bifid. Flowers weakly zygomorphic, ± salver-shaped, sometimes inverted, cream or creamy yellow, lower tepals paler, lightly sweet-scented; perianth tube sub-cylindric to narrowly-funnel-shaped, 12–22 mm long, widening gradually from near middle to 2 mm diam.; tepals subequal, elliptic, spreading but dorsal initally suberect, 8–12 × 3–5 mm, lower tepals puberulous, each with small, obliquely peg-like callus 0.5 mm high. Filaments unilateral, arcuate, 5–7 mm long, shortly exserted; anthers 3–5 mm long, pale yellow; pollen cream.. Style 18–25 mm long, dividing between middle and tips of anthers, branches 1.5–2 mm long. Capsules subglobose, 5–10 mm long. Flowering time: late July to early October, depending on the rains.
Country: South Africa
Distribution and ecology: endemic to the Richtersveld in Northern Cape, from Helskloof to Eksteenfontein; in light clay, loam or gravelly soils, sometimes among quartzite pebbles.
Diagnosis: closely allied to the largely sympatric Tritonia marlothii, with which it shares similar narrow, leathery leaves without evident secondary veins and spikes of long-tubed flowers with short, often largely herbaceous bracts and unusual lower tepals minutely puberulous on the upper surface. They are distinguished by details of the flowers, T. delpierrei having fragrant, pale creamy yellow flowers with a perianth tube 12–22 mm long and T. marlothii with odorless, pale to deep purple flowers with a longer tube 28–42 mm long.
Pollination: the sweetly scented flowers are probably adapted to pollination by long-tongued bees.

 
 


 

Specimens whose coordinates are enclosed in square brackets [ ] have been mapped to a standard reference mark based on political units.
 
 
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