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!Hesperantha hantamensis Schltr. ex R.C. Foster 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: Contributions from the Gray Herbarium of Harvard University 166: 15. 1948. (Contr. Gray Herb.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 8/17/2016)
Description: Plants ± acaulescent, up to 60 mm high. Corm ± ovoid, 12–15 mm diam., asymmetric with oblique flat base; tunics woody, imbricate, dark brown, outer layers V-notched on lower margins. Stem rarely emerging above ground, simple or with one branch from near base, sheathing cataphyll often brown above ground. Leaves 3 or 4, all ± basal, plane, ± falcate, 20–40 × 5–6 mm. Spike 1–3-flowered; outer bract green, leaf-like, folded in midline, 15–25 mm long. Flowers diurnal, salver-shaped, white, outer tepals shaded purple-brown outside, usually strongly scented; perianth tube cylindric, filiform, 14–20 mm long, widening near apex; tepals subequal, ± elliptic, 8–12 × 4–5 mm, spreading. Filaments suberect, 3–5 mm long; anthers 5–6 mm long, held horizontally over tepals, white; pollen white. Style branches ± 9 mm long, spreading over tepals, slightly exceeding anthers in closed flower. Capsules ellipsoid, often flushed dull red, ± 12 mm long. Seeds softly angular, dull yellow. Flowering time: July to early August.
Country: South Africa
South African Province: Northern Cape
Distribution and ecology: evidently a very narrow endemic, known only from the southern and eastern foot and lower slopes of the Hantamsberg near Calvinia and on the  adjacent Keiskie Mtns to the south in Northern Cape; usually on heavy red clay on stony ground or in seasonal washes, often in colonies.
Diagnosis: one of three closely allied acaulescent species of the western Karoo, Hesperantha hantamensis has relatively small white flowers with a slender perianth tube 14–20 mm long and spreading tepals 8–12 mm long. The flowers are normally crepuscular, opening ± 16:30, then strongly fragrant, and closing in the early evening. Related H. flava has larger yellow flowers and H. humilis even larger, pink to rose flowers with a dark throat. Flowers of H. humilis are diurnal and odourless where those of H. flava are crepuscular and sweetly scented.

 


 

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