Nomenclature
Scientific Name:
Montia calycina (Colenso) Pax & K.Hoffm., Nat. Pflanzenfam., ed. 2, 259 (1934)
Synonymy:
  • Claytonia calycina Colenso, Trans. & Proc. New Zealand Inst. 28: 592 (1896)
  • Neopaxia calycina (Colenso) Heenan, New Zealand J. Bot. 37: 220-222 (1999)
LECTOTYPE (fide Heenan 1999): Claytonia calycina. "Rev. W. Colenso. Presented, 1897", K !
  • = Claytonia australasica var. biflora Buchanan, Trans. & Proc. Roy. Soc. New Zealand 3: 210 (1871)
LECTOTYPE (fide Heenan 1999): [New Zealand, Taranaki], Mt Egmont, Claytonia australasica var. biflora ; WELT 47461.
 Description

Herb, up to 50 cm diam., forming loose or compact mats. Leaves up to 50 × 2 mm, narrowly lanceolate to ± linear; lamina narrowly elliptic to narrowly lanceolate; adaxial and abaxial surfaces green, green-brown, to brown, usually glossy; adaxial surface convex; abaxial surface ± flat; apex obtuse; base attenuate; petiole indistinct and grading into lamina; old leaves yellow to orangeyellow. Involucral leaves 1.2–2.2 × 2.6–3.0 mm, redbrown, red-green, to brown-green; lateral fold present; apex subacute. Flowers 8.0–11.0 mm diam. Tepals 4.5–5.5 × 2.5–2.7 mm, broadly elliptic to obovate, white at maturity—in bud sometimes flushed pink, not overlapping; apex obtuse, not notched; claw weakly differentiated. Nectary orange-brown. Filaments 3.2–3.6 mm long, >½ tepal length, white but rarely flushed pink. Anthers 0.7- 0.8 × 0.3-0.4 mm, pink to pink-red. Ovary 0.8-2.1 × 0.8-1.7 mm, obovoid, green-brown to olive-green; sutures not prominent. Style 2.0-2.3 mm long; slightly spreading at base, white with base flushed green. Stigmatic branches 0.9-1.5 mm long, white, straight prior to spreading. Capsule 1.8-2.1 × 1.7- 2.0 mm. Seeds 1.2-1.8 × 1.1-1.6 mm, slightly to moderately rugose, dark brown to black-brown. FL Dec-Feb; FT Jan-Mar .

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

 Biostatus
Indigenous (Endemic)
 Bibliography
Buchanan, J. 1871 ("1870"): On some New Species and Varieties of New Zealand Plants. Transactions and Proceedings of the Royal Society of New Zealand 3: 208–212.
Colenso, W. 1896: Phænogams: A description of a few more newly-discovered indigenous plants; being a further contribution towards the making known the botany of New Zealand. Transactions and Proceedings of the New Zealand Institute 28: 591–613.
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. [Not Threatened]
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. [Not Threatened]
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.
Pax, F; Hoffmann, K. 1934: Portulacaceae. In: Engler, A.; Prantl, K. Die Natürliche Pflanzenfamilien. Edition 2nd. Vol. 16c. Engelmann, Leipzig. 234–262.