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!Tritoniopsis lata (L. Bolus) G.J. Lewis Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Journal of South African Botany 25: 335–337, f. 1 F, p. 33. 1959. (J. S. African Bot.) Name publication detail
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 7/22/2016)
Description : Plants 300–700 mm high. Corm 30–60 mm diam.; tunics of densely matted fibres, with long collar. Stem erect, unbranched or rarely with single short erect branch, 2–3.5 mm diam. Basal leaves 1 to 3, usually green at flowering, blade linear or linear-lanceolate, 150–600 × 3–8 mm, acuminate, narrowed below, with 3 or 4 veins; cauline leaves 3 to 5, lower 2 or 3 subulate, upper 1 or 2 reduced to scales or vestigial. Spike moderately densely ± 5–18-flowered, 70–150 mm long; bracts dry and brown, leathery or papery and fairly soft, oblong or ovate-oblong, outer 6–16 mm long, acute or mucronulate, inner slightly longer. Flowers zygomorphic, pale to deep pink, lower 3 tepals with red median lozenge or streak flanked by white streaks, unscented; perianth tube narrowly funnel-shaped, 6–11 mm long, tepals unequal, dorsal larger, arched over stamens, recurved apically, oblanceolate-spathulate, clawed in lower half, 23–33 × 5–8(–12) mm, obtuse, other tepals recurved in distal half, 18–25 × 5–9 mm, upper laterals joined to lower laterals for ± 1 mm and lower 3 tepals joined at base for 5–7 mm. Filaments arcuate, later diverging, (15–)17–20 mm long; anthers 5–7 mm long, pink or yellow, with acuminate or bifid, often recurved apiculus 1–2 mm long. Style 26–28 long, dividing opposite middle of anthers, branches 3–4 mm long. Capsules ovoid, slightly inflated, 15–20 × 8–10 mm. Seeds up to 5 mm long, winged on angles. Chromsosome number 2n = 32. Flowering time: (Feb.–)Apr.–May.
Country : South Africa
South African Province : Western Cape
Distribution and ecology : a montane species endemic to Western Cape, extending from the Witzenberg and Bainskloof south along the coastal mountains to the Kleinrivier, Bredasdorp and Riviersonderend Mtns but absent from the Cape Peninsula; on rocky, south-facing sandstone slopes..
Diagnosis : distinguished from similar short-tubed, pink-flowered species by its mostly larger, candy-pink flowers, the dorsal tepal 23–33 × 5–8(–12) mm and the filaments 15–20 mm long with conspicuously apiculate anthers, and the relatively long style branches 3–4 mm long. The tepals are clawed in the basal half and recurved in distally, giving the flowers a rather open appearance, with the lower tepals almost as wide as the upper. The stems are mostly 300–600 mm high, and unbranched (rarely with a solitary short erect branch). Smaller-flowered forms can be confused with T. dodii, a coastal lowland species with dusty pink flowers with narrower tepals, very shortly apiculate anthers, and short style branches up to 2 mm long.

Plants from the northern part of the range, between Du Toits Kloof and Ceres, with slightly narrower tepals, the dorsal 5–8 mm vs 7–12 mm wide, and bracts up to 16 mm long vs up to 13 mm, were segregated as var. longibracteata by G.J.Lewis (1959) but these differences are insignificant. Plants from Klein Winterhoek near Tulbagh with unbranched stems up to 650 mm tall and flowers with the perianth tube ± 10 mm long were described as Tritoniopsis pulchella var. alpina G.J.Lewis (1959). Both the tall stems and the short perianth tubes are anomalous for that species, as are the relatively soft-textured bracts, but are all these features are consistent with T. lata. After examination of the type and a later collection from the same locality these plants were considered better included in T. lata

Pollination : the flowers are pollinated by long-tongued solitary bees (Anthophoridae).

 
 


 

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