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Aristea teretifolia 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 7(2): 141, f. 1B. 1997. (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 6/8/2016)
Description: Plants (100–)300–500 mm high, forming tufts to 150 mm diam. Stem erect, occasionally with 1 or 2 short branches, elliptic in cross section, with (1–)4–6 sessile lateral flower clusters. Leaves linear, mostly 2.5–3 mm wide, reaching to ± middle of stem, loosely twisted. Flower clusters (1–)4–6, mostly sessile, each 2–4-flowered; spathes greenish with translucent margins becoming dry above, 15–18 mm long, bracts shorter than the spathes. Flowers half nodding, held at 45° to horizontal, pale pink to pale lilac, streaked dull brownish outside, outer tepals copper-brown in the lower 1/3, usually with a yellow central streak; outer tepals 22–23 × 13–14 mm, inner 23–25 × 15–17 mm. Filaments ± 4 mm long; anthers ± 5 mm long; pollen yellow. Ovary ± 10 mm long, slightly curved; style ± 11 mm long, stigma lobes broad, deeply fringed. Capsules elongate, woody, indehiscent, 35–40 mm long. Seeds triangular-columnar, truncate at apex and base, fringed with papillae along angles, surface obscurely foveate, epidermal cells domed, reddish brown, 1.5–1.8 × ± 1.5 mm. Flowering time: August to mid September.
Country: South Africa
South African Province: Western Cape
Distribution and ecology: a narrow endemic of the Langeberg near Swellendam in Western Cape, South Africa; on lower southern slopes in peaty sandstone soil, flowering after fire.
Diagnosis: Aristea cistiflora is evidently most closely related to A. teretifolia (Goldblatt & Manning, 1997a) which also has the outer tepals with dark markings, reaching the middle of the tepals in A. teretifolia versus close the base in A. cistiflora. A. teretifolia is additionally distinguished by the leaves sometimes terete or linear and up to 2 mm wide, the flowering stem bearing at most two lateral flower clusters (versus up to six in A. cistiflora), by the slightly smaller flowers with the tepals ascending, the outer about 20 mm long and the inner 24–28 mm long, thus substantially longer than the outer. In A. cistiflora the inner tepals are only 1–2 mm longer than the outer. A. teretifolia also has smaller capsules, only 20–30 mm long, versus 35–40 mm long in A. cistiflora. As in other members of subg. Pseudaristea, pollen grains of A. cistiflora have two smooth apertures each forming ring (thus dizonasulculate).

 


 

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