Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
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Pachycladon stellatum (Allan) Heenan & A.D.Mitch. in Heenan et al., New Zealand J. Bot. 40: 558 (2002)
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Nomenclature
Heenan & A.D.Mitch.
Allan
(Allan) Heenan & A.D.Mitch.
2002
558
stellata
ICN
species
Pachycladon stellatum
Classification
Synonyms
Descriptions
Stock often widely branched; lvs more regularly, less coarsely toothed, clad in stellate hairs; infl. branches stellate-pubescent below; siliques c. 5 cm. long.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
2n = 20
Polycarpic perennial herb, up to 34 cm tall; rootstock stout, up to 16 mm diam., sometimes branched, covered in old, fibrous, chaffy, petiole bases; rosette densely leafy. Rosette leaves coriaceous, dull, grey-green, often red-purple on petiole and abaxial surface. Lamina 20—80 × 5—10(— 19) mm, narrow-lanceolate, lanceolate, or oblanceolate, shallowly serrate with 4—8 pairs of teeth; apex acute to subacute; base attenuate. Petiole up to 55 mm long, up to 2 mm wide at narrowest point, base up to 4 mm wide. Hairs on leaves and inflorescence bifurcating and dendritic, white or sordid, harsh or scabrid; on lower petiole margin occasionally simple. Inflorescence 15-35 cm tall, compound, with terminal and lateral racemes, lateral racemes alternate and occasionally with secondary racemes. Cauline leaves subtending lateral raceme s and rarely lowermost flowers, 3 .5-55 × 1-3(-5) mm, similar to rosette leaves, becoming smaller and linear in distal parts, moderately to densely hairy; base cuneate to subauriculate. Racemes 6-20 cm long at fruiting, 10-40-flowered; rachis with sparse to dense covering of hairs, hairs particularly sparse in distal parts. Pedicels 4 .0-5 .5 mm long at flowering, 7-10(-15) mm long at fruiting, usually glabrous, suberect to erectopatent. Sepals 3.5—1.5 × 1.3-2.1 mm, ascending, green, oblong, with few hairs, often flushed pink in bud; margin broad, membranous, white; apex obtuse to subacute. Petals 6-7 × 3-4 mm, white; claw 2-3.5 mm long; limb broad elliptic to obovate, or short oblanceolate, 3.0-3.5 mm long; apex rounded; base attenuate to cuneate. Median stamen filaments 3.1-4.9 mm long; lateral stamen filaments 2.5-3.8 mm long; anthers 0.9-1.1 × 0.5-0.6 mm, white, introrse. Nectary annular, and almost surrounding the bases of the lateral stamens. Ovary 2.6- 4.1 × 0.5-0.8 mm, green, glabrous. Style 0.3-0.7 mm long. Stigma 0.4-0.5 mm wide. Siliques 30-60 × 1.3-1.6(-2.3) mm, linear, valves weakly keeled at base, I-veined, at maturity yellow-brown and often flushed red-brown. Septum intact, with or without a midvein. Funicle 0.3-0.5 mm long. Seeds 30-50 per locule, 1.1-1.4 mm long, 0.5-0.7 mm wide, 0.3-0.4 mm thick, oblong to narrowly ellipsoid, flattened, brown or red-brown; hilum basal; surface regular to irregular, reticulate; wing usually apical but sometimes decurrent on apical half of seed, 0.2–1.0 mm long at seed apex; radicle incumbent to accumbent, straight. FL Nov–Jan; FT Jan– Apr.
Taxonomic concepts
Cheesemania fastigiata var. stellata Allan
Cheesemania fastigiata var. stellata Allan
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Cheesemania stellata (Allan) Heenan & Garn.-Jones
Cheesemania stellata (Allan) Heenan & Garn.-Jones
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Pachycladon stellatum (Allan) Heenan & A.D.Mitch.
Collections
Notes
editorial
The generic name Pachycladon has been regarded as masculine (Garnock-Jones 1987, p. 119), but is now considered to be a neuter noun (Patricia Eckel pers. comm.). Therefore, the epithets of the other species of Pachycladon should be altered in accordance with the International Code of Botanical Nomenclature Article 32.7 (McNeill et al. 2006).
Metadata
c7331fde-54d4-40a3-bd3f-70d1f8e32c88
scientific name
Names_Plants
14 January 2003
6 July 2009