Home Iridaceae of sub-Saharan Africa
Genera
Species
Iridaceae in sub-Saharan Africa
Photo Gallery
Geographic Search
References
Search Builder
About this project
!Gladiolus rogersii 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 208. 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 1/3/2017)
Description: Plants (200–)300–500(–650) mm high, with cataphylls purple or mottled with white or dry and dark brown, sometimes minutely velvety. Corm globose, 8–14 mm diam.; tunics usually papery or finely fibrous, occasionally fibres of medium texture, rarely coarse and claw-like below. Stem erect below, flexed outward above sheaths of 2 upper leaves and inclined above, unbranched. Leaves 3 or 4(5), lowermost or lower 2 reaching base or exceeding spike, linear (rarely ± ellipsoid in section), 1.5–4(–6.5) mm wide, straight, soft-textured to somewhat wiry, margins and main vein lightly to heavily thickened, cauline leaves inserted well above ground, progressively shorter, uppermost sometimes entirely sheathing, margins usually united below. Spike inclined, (1)3–6-flowered; bracts green or flushed grey to purple with broad, transparent margins, diverging, outer 15–22 mm long, inner slightly smaller, minutely forked. Flowers inflated and bell-like, pale to dark blue or purple, darker on reverse of upper tepals, lower tepals lightly spotted with purple in lower 1/2 and with transverse or median yellow to white mark in upper 1/3 outlined or surrounded with dark blue to purple, usually lightly sweet scented; perianth tube obliquely funnel-shaped, geniculate, 12–19 mm long, lower half erect and cylindric, upper half bent at right-angles and flaring outward; tepals with upper ovate, lower spathulate, dorsal largest, extending horizontally over stamens, obovate, 20–30 × 16–26 mm, upper laterals slightly shorter, curving slightly outward apically, lower 3 cupped with apices directed forward or downward, united for 5–9 mm with upper laterals, free parts 16–22 × 8–16 mm, not clearly divided into limb and claw, broadly obtuse or emarginate margins curved upward distally. Filaments 10–12(–15) mm long, exserted 5–8 mm from tube; anthers 5.5–9 mm long, blue; pollen cream. Style arching over stamens, dividing close to anther apices, branches ± 4 mm long. Capsules and seeds unknown. Flowering time: mainly late August to mid October, occasionally to mid November, exceptionally March to July.
Country: South Africa
South African Province: Eastern Cape, Western Cape
Distribution and ecology: widespread through the southern coast, from the Agulhas Peninsula along the coastal plain and the Langeberg and Outeniqua Mtns in Western Cape to near Humansdorp in Eastern Cape, extending inland on Touwsberg; in fynbos on costal limestone flats and south-facing sandstone slopes up to 1 000 m.
Diagnosis: a variable species with 3 to 5 linear leaves with the margin and midrib lightly thickened, rarely solidly oval in section, and inflated, bell-shaped, mauve to blue flowers with a short, sharply bent perianth tube 12–19 mm long. The lower tepals are typically marked with a white to yellow transverse band outlined with dark blue or purple.

 


 

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