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A peer-reviewed article of this preprint also exists.
This version is not peer-reviewed
Submitted:
23 May 2023
Posted:
24 May 2023
You are already at the latest version
Locality | Voucher |
---|---|
ZA: Northern Cape, Rietfontein to Brandvlei, G.Germishuizen 4022 | PRE0694503 |
ZA: Northern Cape, Farm Grootfontein, G.Germishuizen 6524 | PRE0791338 |
ZA: Northern Cape, Calvinia, A.A.Schmidt 408 | PRE0405924 |
ZA: Northern Cape, Hanover, J.P.H.Acocks 18797 | PRE0405795 |
Taxon | Provenance (herbarium voucher) | Source | GenBank accession code | |
---|---|---|---|---|
trnL-trnF | 5.8S-ITS2 | |||
S. cf. azorica Lebel | Spain: Canary Isl., Tenerife (ABH79973) | This paper | ||
S. hanoverensis E.Simon ex M.Á.Alonso et al. | South Africa: Zoekop Farm (ABH83276) | This paper | ||
South Africa: Karreekop Farm (ABH83288) | This paper | |||
S. namaquensis Schltr. Ex M.Á.Alonso et al. | South Africa: Skoverfontein (ABH83197) | This paper |
S. glandulosa | S. namaquensis | S. media | S. quartzicola | S. hanoverensis | |
---|---|---|---|---|---|
Height (cm) | up to 15 | up to 20 | 5–50 (–65) | up to 30 | up to 30 |
Habit | subshrub | subshrub | perennial herbs, weakly lignified at base | subshrub | subshrub |
Stems | caespitose, strongly nodose, procumbent to prostrate | erect, nodose, with ascending branches | diffuse, procumbent to prostrate | erect, nodose below, with subfastigiate branches | compact, slightly nodose, with ascending branches |
Young branches indumentum | densely covered all over with gladuliferous, pluricellular hairs | densely covered all over with glanduliferous, pluricellular hairs | glabrous | glabrous (occasionally sparsely glanduliferous when young) | glabrous |
Leaves (mm) | 8–20 × 0.5–1 | 8–25 × 0.8–1.2 | 10–35 × 0.3–2.5 | 8–45 × 0.5–1.2 | 4–10 (–1.7) × 0.5–0.7 |
Indumentum of leaves | covered with glanduliferous hairs, occasionally glabrescent | covered with glanduliferous hairs, occasionally glabrescent | glabrous | glabrous | glabrous |
Leaf mucro (mm) | 0.2–0.4 | 0.4–0.5 | 0–0.2 | 0.2–0.5 | 0.5-1.0 |
Stipules (mm) | 3–6 × 3–4 | 2–4 × 2–4 | 2.3–2.5 × 1.3–2 | 3–5 × 2–2.6 | 4–6 × 1–2 |
Stipules shape and connation | triangular to broadly triangular, those of young stems fused up to 1/3 of their length | triangular to broadly triangular, those of young stems fused up to 1/3 of their length | triangular, not acuminate, those of young stems fused up to 1/2 of their length | narrowly triangular, long acuminate, those of young stems fused up to 1/3 of their length | triangular-acuminate, those of young stems fused up to 1/3 of their length |
Stipules indumentum | whitish-scarious, with glanduliferous hairs in the basal part | whitish-scarious, with glanduliferous hairs in the basal part | whitish-scarious, glabrous | whitish-scarious, glabrous | whitish-scarious, glabrous |
Floral bracts/ Stipules | bracts longer to slightly longer than stipules | bracts slightly longer than stipules | bracts slightly longer than stipules | bracts longer than stipules | bracts longer than stipules |
Inflorescence | monochasial to dichasial cyme, narrowly branched | dichasial cyme, broadly branched | dichasial cyme, broadly branched | dichasial cyme, broadly branched. rarely monochasial | dichasial cyme, broadly branched |
Bract length (mm) | (2–)6–10 | (2–)5–9 | 1.7–2 | (1.5–)3–7 | (1–)1.5–2.5 |
Indumentum of bracts | glandular-pubescent | glandular-pubescent | glabrescent to glandular-pubescent | glandular-pubescent | glandular-pubescent |
Sepals (mm) | 2–6 × 2–3, with narrowly scarious margins, erect-patent at anthesis | 5–7.5 × 4–5, with broadly scarious margins, patent to slightly deflexed at anthesis | 4–6 × 2, with broadly scarious margins, erect-patent at anthesis | 4.6–6 × 1.5–3, with narrowly scarious margins, strongly deflexed at anthesis | 2–3 × 1–1.5 with narrowly scarious margins, patent to slightly deflexed at anthesis |
Indumentum of sepals | glandular-pubescent | glandular-pubescent | glandular-pubescent | glandular-pubescent | glandular-pubescent |
Petal colour | white | white | white or sometimes pink at apex | white | white |
Sepals/petals | slightly shorter than to equalling sepals | up to 1.5 times longer than sepals | up to 1.2 longer than sepals | up to 1.5 times longer than sepals | slightly shorter than to equalling sepals |
Petals (mm) | 2–5 × 1.5–3 | 6–9 × 4–5 | 4–5 × 1.8–2 | 6–8 × 4–5 | 1.8–2.8 × 1–1.2 |
Stamens | 10, widened at bade | 10, not widened at base | (7–9)10, widened at base | 10, dissimilar (5 widened at base) | 7–8, slightly widened at the base |
Stamens/petals | shorter than petals | shorter than petals | shorter than petals | shorter than petals | shorter than petals |
Anther | 0.5–0.8 | 0.6–1 | 0.9–1 | 0.8–1 | 0.3–0.4 |
Styles | 3, free from base | 3, fused in column to half or beyond | 3, free from base | 3, fused in column to half or beyond | 3, free from base |
Style length (mm) | 0.5–0.7 | 1–1.1 | 0.5–0.6 | 1.5–2 | 1 |
Capsule (mm) | 4–6.5 × 1.5–3.5 | 6–9 × 3–4 | (5–)6–9 × (3.5–)4–6 | 5.5–6.5 × 3–3.5 | 3–4 × 2.5–3.5 |
Capsule/sepals | slightly longer than sepals | equalling to r slightly longer than sepals | 1/3 longer than sepals | equalling to slightly longer than sepals | slightly longer than sepals |
Seed | winged, discolour | winged, discolour | winged, discolour | winged, discolour | winged, discolour, to unwinged |
Seed colour | scarious whitish wing and dull brown to blackish disk | scarious whitish wing and blackish disk | scarious whitish wing and blackish disk | scarious whitish wing and blackish disk | scarious whitish wing and blackish-brown and matte |
Size of seed (mm) | 0.9–1.3 × 1.2–1.3 | 1.1–1.3 × 1.2–1.4 | 1.2–1.5 × 1.3–1.6 | 1.1–1.2 × 1.1–1.2 | 0.5–0.75 × 0.3–0.6 and 0.7–1.1(–1.4) × 0.6–1.2(–1.4) |
Seed disk (mm) | 0.6–0.7 × 0.6–0.9, loosely covered with conical tubercles | 0.6–0.7 × 0.6–0.8, smooth or with conical tubercles only on edges | 0.6–0.8 × 0.5–0.7 smooth | 0.6–0.7 × 0.6–0.7, smooth or with granular protuberances, mostly on edges | 0.5–0.9 × 0.4–0.9 mm, densely covered with globose, stalked papillae |
Width of seed wing (mm) | 0.3–0.4 | 0.4–0.6 | 0.3–0.5 | 0.5–0.6 | 0–0.5 |
Wing edge | entire to slightly eroded | entire to slightly eroded | entire to slightly eroded | deeply and irregularly lacerate | eroded, when present |
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