Parahebe spathulata (Benth.) W.R.B.Oliv.
Details
Parahebe spathulata (Benth.) W.R.B.Oliv., Rec. Domin. Mus. 1: 230 (1944)
Nomenclature
W.R.B.Oliv.
Benth.
(Benth.) W.R.B.Oliv.
1944
230
ICN
species
Parahebe spathulata
Classification
Descriptions
Parahebe spathulata (Benth.) W.R.B.Oliv.
Prostrate much-branched subshrub forming dense to open patches up to 25 cm. diam.; main root very stout, branched, deeply descending; stems prostrate to decumbent, woody, us. rooting below, with short, ascending, densely white-hairy branchlets up to c. 10 cm. long. Lvs us. crowded, white-hairy on both surfaces or rarely completely glab., black when dry; lamina 2-8 × 2-10 mm., ± suborbicular in outline, obtuse, crenate, narrowed rather abruptly into broad canaliculate petiole 3-5 mm. long. Racemes 2-7-fld, densely white-hairy in all parts; peduncles 5-15-(20) mm. long; bracts opp., up to c. 5 mm. long, subfoliaceous, spathulate; pedicels c. 3 mm. long, us. < bracts. Calyx 4-5 mm. long, lobes oblong, obtuse, c. 3 mm. long, densely white-hairy. Corolla white or occ. lavender, 7-8 mm. long; tube cylindric, < or = calyx; lobes 4, unequal, rounded, = or > tube. Capsule c. 3 × 5 mm., < or = calyx, broad-obcordate, ± compressed, white-hairy.
Parahebe spathulata (Benth.) W.R.B.Oliv.
2n = 84
Parahebe spathulata (Benth.) W.R.B.Oliv.
Subshrub, 2–5(–10) cm tall. Old stems grey. Branches prostrate to erect. Branchlets brown or red-brown. Vegetative internodes 2–15(–35) mm long. Stem pubescence uniform, eglandular pubescent. Leaves decussate, erecto-patent and recurved (i.e., petiole erectopatent; lamina recurved). Lamina orbicular to rhomboid, 2–6(–12) × (1.5–)2–6(–12) mm. Adaxial surface of leaves green or dark green, dull. Abaxial surface of leaves green or pale green or purple, dull. Leaf hairs sparse to dense or absent (rarely), when present on all parts of leaf, uniseriate eglandular. Apex subacute or obtuse or rounded or truncate. Base truncate. Margin glabrous or ciliate or pubescent, crenate or lobed. Marginal teeth or lobes in (1–)2–3(–4) pairs. Petiole (1–)3–5(–11) mm long. Inflorescence racemose, unbranched, (0.7–)1– 1.8(–4.5) cm long at fruiting, with 2–6(–8) flowers. Indumentum of peduncle, rachis, and pedicels moderately dense to very dense. Eglandular hairs of inflorescence erecto-patent to antrorse, white. Peduncle 0.5–1.5(–3) cm long, eglandular-pubescent; hairs all around peduncle. Rachis 0.2–1.5 cm long, eglandular-pubescent, hairs all around rachis. Bracts paired and opposite, obtuse or subacute, eglandular-hairy adaxially and eglandular-hairy abaxially, spathulate. Bract margins shallowly to deeply lobed. Pedicels suberect at anthesis, straight at fruiting, 1–4 mm long, eglandular-pubescent; hairs all around pedicel. Flowers: Calyx 4-lobed, 3– 5(–6) mm long. Calyx lobes oblanceolate or obovate, acute to subacute. Calyx hairs on margins only or on both abaxial and adaxial surfaces, eglandular. Calyx lobe margins entire or toothed (weakly, rarely). Corolla white at anthesis or mauve at anthesis (rarely). Nectar guides absent. Corolla throat same colour as lobes. Corolla (5–)6–8 mm diam. Corolla tube 3–4 mm long, 1.5–2 mm wide, glabrous. Corolla lobes glabrous. Posterior corolla lobe circular, obtuse, 3.5–4 × 3.5–4 mm. Lateral corolla lobes circular or elliptic (broadly), obtuse, flat, not enfolding stamens, (3–)3.5–4 × 3.5–4.5 mm. Anterior corolla lobe elliptic or oblong, obtuse, 3.5–4 × 1.5– 2 mm. Stamen filaments white, 2–3 mm long, not narrowed at base. Anthers pink or mauve, 0.8–1 mm long. Nectarial disc glabrous. Ovary globose, obtuse or emarginate, eglandular hairy, 1–1.5 mm long. Style 1.5–2 mm long. Stigma 0.2–0.25 mm wide. Capsules hygrochastic, narrowly angustiseptate (i.e., strongly flattened), emarginate to didymous, 3–4 × 3–4(–4.5) mm, 1.5–2 mm thick, hairy. Hairs eglandular. Septicidal split of capsule extending to base. Loculicidal split of capsule extending 1⁄2 way to base. Seeds (2–)15–40 per locule, strongly flattened, smooth-surfaced, ellipsoid or discoid, brown, 1–1.5 × 1–1.5 mm.
Taxonomic concepts
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Parahebe spathulata (Benth.) W.R.B.Oliv.
Identification keys
Metadata
f166e46d-857a-4923-8d7e-e002023dfc47
scientific name
Names_Plants
1 January 2000
6 January 2023