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!Hesperantha grandiflora 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 7: 30. 1941. (J. S. African Bot.) Name publication detail
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 8/24/2016)
Description: Plants 200–550 mm high. Corm conic, 12–15 mm diam.; tunics woody, ± imbricate, layers fragmenting into rectangular sections below and tapering into short cusps above. Stem unbranched. Leaves usually 4, lower 1 or 2 basal, longest, reaching to between middle of stem and apex of spike, ± linear, 2–3 mm wide, firm, ± erect, main vein prominently raised, margins lightly thickened, upper 2 leaves progressively smaller, uppermost partly to entirely sheathing. Spike mostly 2–5-flowered; bracts (20–)25–35(–42) mm long, green, inner slightly smaller than outer. Flowers diurnal, zygomorphic, pink, paler in throat; perianth tube 40–55 mm long, cylindric, curving outward distally, expanded near mouth; tepals ± vertically oriented, obovate-elliptic, (20–)25–37 × (6–)8–10(–12) mm. Filaments unilateral, declinate, 8–14 mm long; anthers ± parallel, facing dorsal tepal, 9–12 mm long, brown to purple; pollen brown to purple. Style branches arching below anthers, 15–25 mm long, exceeding anthers in closed flower. Capsules ± ellipsoid, 12–15 mm long. Seeds light brown, ± globose, 1.0–2.0 mm long,  ± 1 mm diam., with narrow membranous wing at both ends. Flowering time: mainly late January to early March.
Country: South Africa, Lesotho
South African Province: Eastern Cape, Free State, KwaZulu-Natal
Distribution and ecology: relatively widespread in eastern southern Africa, extending from Lesotho and eastern Free State near Witzieshoek through the KwaZulu-Natal Drakensberg to Eastern Cape at least as far south as Barkly Pass; in highland grassland.
Diagnosis: one of several long-tubed and pink-flowered species of Hesperantha in eastern southern Africa, H. grandiflora stands out in its zygomorphic, nodding flowers, unique in the genus. The perianth tube, usually 40–55 mm long, is curved outward near the apex and about half again as long as the tepals. The tepals are oriented ± vertically while the stamens are unilateral and declinate, arching downward to lie above the lowermost tepal. The anthers are dark purple to red-brown, a feature only rarely encountered in the genus. H. stenosiphon, which has a similarly long perianth tube but much smaller tepals, also has dark anthers as does short-tubed H. hutchingsiae, but both have radially symmetric flowers. Like other long-tubed, pink-flowered species of Hesperantha, H. grandiflora is pollinated by long-proboscid nemestrinid flies.

 
 


 

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