Classification
Class
Magnoliopsida Brongn.
Order
Caryophyllales Juss. ex Bercht. & J.Presl
Family
Montiaceae Raf.
Genus
Montia L.
 Nomenclature
Scientific Name:
Montia drucei (Heenan) Heenan, New Zealand J. Bot. 45: 438 (2007)
Synonymy:
  • ≡ Neopaxia drucei Heenan, New Zealand J. Bot. 37: 224-226 (1999)
HOLOTYPUS (fide Heenan 1999): [New Zealand], Nelson Land District, Mount Arthur, damp seepage at interface of marble and soil—soil very shallow, P. Heenan 42/95 & M Dawson, 9 Mar 1994, CHR 502438.
 Description

Herb, up to 5 cm diam., forming loose to compact small mats. Leaves up to 15 × 1.1 mm; lamina 1–3 mm long, elliptic to rhomboid; adaxial and abaxial surfaces green, slightly glossy; adaxial surface convex; abaxial surface concave; apex subacute; base attenuate to cuneate; petiole distinct; old leaves yellow. Involucral leaves 1.5–1.6 × 1.6–2.2 mm, green; lateral fold present; apex obtuse. Flowers 4.8–6.2 mm diam. Tepals 2.1–3.6 × 1.3–2.3 mm, obovate, white, overlapping; apex subacute, not notched; claw not differentiated. Nectary green. Filaments 1.6–2.4 mm long, > ½ tepal length, white. Anthers 0.3–0.4 × c. 0.2 mm, pink to pink-red. Ovary 0.6–0.8 × 0.8–0.9 mm, obovoid, green; sutures not prominent. Style 0.9–1.2 mm long; slightly bulbous at base, white with base flushed green. Stigmatic branches 0.9–1.0 mm long, white, straight prior to spreading. Capsule 1.5–1.7 × 1.0–1.4 mm. Seeds 1.0–1.4 × 0.9–1.2 mm, moderately to strongly rugose, black. FL Dec–Feb; FT Jan–Mar.

[Reproduced from Heenan (1999, New Zealand J. Bot. 37: 213-234, as Neopaxia drucei Heenan) with permission from The Royal Society of New Zealand.]

 Biostatus
Indigenous (Endemic)
 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Nationally Critical]
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76. [as Neopaxia drucei Heenan]
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Nationally Critical]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Nationally Critical]
Heenan, P.B. 1999: A taxonomic revision of Neopaxia Ö.Nilss. (Portulacaceae) in New Zealand. New Zealand Journal of Botany 37: 213–234.
Heenan, P.B. 2007: New combinations in Montia (Portulacaceae). New Zealand Journal of Botany 45: 437–439.