Home Iridaceae of sub-Saharan Africa
Genera
Species
Iridaceae in sub-Saharan Africa
Photo Gallery
Geographic Search
References
Search Builder
About this project
!Ixia trinervata (Baker) 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 28: 169. 1962. (J. S. African Bot.) Name publication detail
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 9/6/2016)
Description: Plants 250–450 mm high. Corm 9–18 mm diam., tunics of firm, medium-textured, netted fibres. Stem usually unbranched or with a single short branch. Leaves 2, lower 1 ± basal, lanceolate, (4–)6–10 mm wide, conspicuously 3-veined, main vein moderately thickened, secondary veins slightly less so, margins not or barely thickened, upper leaf sheathing stem in lower 1/2. Spike flexuose, 5–12-flowered; bracts membranous, translucent, sometimes turning rusty brown in upper 1/3, outer 5–6 mm long, with prominent main vein and up to 6 secondary veins, 1-toothed or ± fringed, inner ± as long as outer, 2-veined and 2-toothed. Flowers rotate, deep rose pink, unscented; perianth tube filiform, 4–5 mm long, clasping style; tepals spreading, ovate-elliptic, obtuse to retuse, 12–15 × 6–8 mm. Filaments inserted at mouth of tube, filiform, 2–4 mm long, ± white; anthers erect, suborbicular, ± 2 mm long, yellow, thecae acute, recurved at base, dehiscing almost to apex. Style dividing at base of filaments, branches falcate, 2.5–3.0 mm long, tubular-filiform, pale pink. Flowering time: September.
Country: South Africa
South African Province: Western Cape
Distribution and ecology: a narrow endemic of the Caledon District of Western Cape, extending from Elgin Station and the Farm Arieskraal in the west to Riviersonderend in the east; on clay soils in renosterveld, often in stony ground, flowering well after fire.
Diagnosis: Ixia trinervata is readily recognized by the presence of just one foliage leaf, the blade narrowly sword-shaped, mostly 6–10 mm wide, with three ± equally conspicuous veins and unthickened margins. A second leaf is largely to entirely sheathing, although relatively broad. The flowers are an intense, bright mauve pink also described as red-magenta. Related I. bifolia recalls I. trinervata in its single foliage leaf, but the leaf blade much narrower, usually only 3–5 mm wide, with a single main vein embedded in the leathery, almost succulent leaf tissue. When dry the leaf margins appear moderately thickened, unlike those of I. trinervata. The flowers are I. bifolia are slightly smaller than those of I. trinervata and have unusual, almost straight, deep pink style branches in marked contrast to the pale pink, falcate style branches of I. trinervata.

 
 


 

Specimens whose coordinates are enclosed in square brackets [ ] have been mapped to a standard reference mark based on political units.
 
 
© 2024 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110