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!Tritonia disticha (Klatt) Baker 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: Handbook of the Irideae 193. 1892. (Handb. Irid.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 9/17/2016)
Description : Plants (200–)300–500(–800) mm high. Corm subglobose to depressed-globose, 10–30 mm diam.; tunics of fine fibres, sometimes extending in a fibrous or papery collar. Stem erect or flexed outward above upper leaf and slightly inclined, simple or with up to 2(3) suberect branches from upper 1/2. Leaves 5–8, suberect, firm-textured, narrowly lanceolate, (100–)150–300(–500) × (5–)8–12(–20) mm, acute or acuminate, with raised main vein and strong submarginal vein ± 1 mm from margin, often reaching base of spike, usually forming a pseudostem at base, cauline leaves ± overlapping in lower 1/2 of stem, uppermost dry and clasping, bract-like. Spike suberect or inclined, ± 2-ranked, moderately dense or lax, 4 to 12(–15)-flowered; bracts dry and papery, pale translucent or straw below, densely speckled and flecked with dark brown above or at tips, often striate with brown veins, (8–)10–15(–18) mm long, acute to acuminate, obtuse, or minutely ± 3-toothed with middle tooth reduced, inner slightly shorter, bifid. Flowers slightly zygomorphic, bright red, orange red or pink, lower tepals with a small yellow blotch sometimes outlined with red, sometimes smaller on laterals, tepals sometimes prominently dark-veined, unscented; perianth tube obliquely funnel-shaped, (8–)12–16 mm long with basal 2–3 mm narrow, curved outward, widening to 8–10 mm diam.; tepals oblong to obovate, (10–)15–18(–20) mm long, obtuse, spreading, dorsal slightly wider, 8–10 mm wide, others 5–8 mm wide, lower median sometimes with a low thickened basal ridge. Filaments unilateral, arcuate, 7–12 mm long, included or exserted up to 3 mm; anthers 5–7 mm long, curved, apiculate, pink or yellow. Style dividing between middle and apex of anthers or sometimes beyond, branches 2–4 mm long. Capsules subglobose or obovoid, ± 10 mm long. Flowering time: (November) December to February (March).
Country : South Africa
South African Province : Eastern Cape, Free State, KwaZulu-Natal, Mpumalanga
Distribution and ecology : extending along the eastern seaboard and interior of southern Africa, from Port Elizabeth in Eastern Cape through KwaZulu-Natal and northeastern Free State to Wakkerstroom in Mpumalanga, also in southern Swaziland; in stony grassland, from near sea level inland to the foothills of the Drakensberg; typically on dolerite or sandstone soils.
Diagnosis : Tritonia disticha is recognized by its lanceolate leaves (5–)8–12(–20) mm wide with prominent sub-marginal veins and funnel-shaped, red, orange-red or pink flowers, sometimes darkly veined, lacking well-developed calluses. The lower tepals, especially the median, are marked at the base with a small yellow blotch outlined with red. It is closely allied to and largely sympatric with T. gladiolaris, which blooms earlier, mainly August to November (rarely into December), and has cream to straw or pale yellow flowers, sometimes flushed pale apricot, usually with prominent dark veins. Plants with ± 3-toothed or irregularly toothed bracts, the lower bracts sometimes acute, were separated as subsp. rubrolucens from typical T. disticha with obtuse to acuminate or sometimes 3-toothed bracts, recorded mainly from the coastal Eastern Cape and KwaZulu-Natal. The distinction between the two variants is not at all clear and subsp. rubrolucens is not recognized here.

 
 


 

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