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!Geissorhiza rupicola Goldblatt & J.C. Manning 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: Novon 5(2): 158–159, f.1B. 1995. (Novon) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/6/2016)
Acceptance : Accepted
Taxon Profile     (Last Modified On 9/14/2016)
Description: Plants (100–)150–200 mm high. Corm globose, 9–12 mm diam.; tunics initially unbroken, soft and papery, becoming torn into narrow vertical strips, ultimately almost fibrous, accumulating with cataphylls as a fibrous collar around base. Stem ascending or trailing from cracks in steep rocks, unbranched. Leaves (2)3, lower 1 or 2 basal, linear, 1.5–3 mm wide, margins and main veins heavily thickened and raised into wings overarching blade surface, lowermost longest, reaching to between upper 1/3 of stem and base of spike, second basal leaf usually much shorter, sheathing in lower 1/2, uppermost leaf inserted on mid to upper part of stem, smaller than basal, sheathing for at least half its length, sometimes entirely. Spike (1–)2–6-flowered, flexuose; bracts subequal, outer pale sometimes purple toward apex, 8–11 mm long, inner membranous, narrower than outer, 2-keeled, forked in upper 1–2 mm. Flowers salver-shaped, pale pink, unscented; perianth tube cylindric, (16–)19–23 mm long; tepals subequal, ovoid-oblong, spreading, 12–15 × 4.5–5.5 mm. Filaments suberect, equal, ± 8 mm long, exserted ± 6 mm from tube; anthers ± 3.5 mm long, cream; pollen yellow. Style dividing at or beyond anther tips, ultimately exceeding anthers by ± 4 mm, branches ± 2 mm long. Capsules globose, 4–6 mm long. Seeds prismatic with ridged angles, ± 1.5 mm long. Flowering time: November to early December.
Country: South Africa
South African Province: Western Cape
Distribution and ecology: known only from the Mosterthoek Twins at the western end of the Hex River Mtns in Western Cape; confined to moist shady sites in thin soil on rocks, sometimes in cracks in steep cliffs.
Diagnosis: Geissorhiza rupicola stands out in the genus in its unusually long perianth tube, 16–23 mm long, slightly longer than the tepals. A tube of this length is also known in G. grandiflora but this species has longer tepals and unequal stamens with one filament shorter than the other two. The soft, papery corm tunics becoming torn into narrow vertical strips, ultimately almost fibrous, and accumulating with cataphylls as a fibrous collar around base are also distinctive for G. rupcola, the relationships of which are uncertain.

 


 

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