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Volume 48, 1915
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Art. XXVII.—Some Further Additions to the Flora of the Mongonui County.*

[Read before the Auckland Institute, 8th December, 1915.]

1. Hypericum gramineum Forst.

On rather bare slope of moorland between Kaitaia and Awanui. Rare in the north.

2. Melicytus micranthus Hook. f.

Both var. longiusculus Cheesem. and var. microphyllus Cheesem. occur freely.

3. Geranium pilosum Forst.

Plentiful throughout the district.

4. Leptospermum scoparium Forst. (two forms, as under).

A very curious “sport” of this plant occurs in a maritime morass near Ahipara. It is a low, densely branched shrub under 1 ft. in height. The branches are little more than 1 mm in diameter; many less than that. The leaves are 2–4 mm. m length. I have not seen flowers or fruit.

A form of Leptospermum scoparium is not uncommon in which, in place of 5 petals and a 5-valved capsule, as is usual, many of the flowers have 6–10 petals and the same number of valves. I have not, however, seen any with more than 5 sepals.

5. Crantzia lineata Nutt.

A form of this plant with unusually large leaves occurs in fresh water in several places in the North Cape Peninsula. Leaves 20–35 cm. long, 5 mm. wide Usually this plant occurs in damp sand. The present form is found in fairly deep running water.

6. Coprosma spathulata A. Cunn. (form with red drupes).

In the “Manual of the New Zealand Flora” the drupe of this species is described as “black, very rarely red” In woods in this district, where the

[Footnote] * This is a continuation of my former papers: see Trans. N.Z. Inst., vol. 47 (1915), pp 7693; vol. 45 (1913), pp 27677; and vol 43 (1911), pp. 194224.

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species is very plentiful, not only is the drupe almost as often red as black, but it is frequently of a deep-orange colour. I have watched these plants for a good many years, and am convinced that the red and orange drupes are permanent, not changing to black when dead-ripe.

7. Coprosma tenuicaulis Hook. f. var. major Cheesem.

This variety, which I originally discovered in the Manukau County, occurs sparingly in damp lowland woods.

8. Coprosma rhamnoides A. Cunn.

Both varieties vera Cheesem. and divaricata Cheesem. are abundant. Intermediate forms also occur which are difficult of discrimination.

9. Coprosma sp. med.

Mr. H. B. Matthews has in his garden a Copiosma which differs from any yet described. It was found along with C. Baueri Endl growing on a rock on the west coast. It forms a dense spreading shrub, closely appressed to the ground. Male plant only seen.

10. Dracophyllum latifolium A. Cunn. var. Matthewsii Carse var. nov.

Frutex habitu D. latifolio, sed in omnibus partibus minor Rami graciliores, non verticillati. Folia similes sed minora, 10–30 cm longa, 12–25 mm lata Panicula 10–28 cm. longa, semper pendula Flores minores, minus densae, rubro-purpureae vel nigro - purpureae. Capsula 2 mm. diam.

Hab—Dry ridges in hilly forests in the county.

This neinei, which was discovered by Mr H. B Matthews, whose name I have much pleasure in associating with it, bears a general resemblance to D. latifolium, but is in all respects smaller. It occurs as a shrub or small tree, rarely more than 15 ft in height The branches, which in the type are usually whorled and more or less dichotomously divided, issue irregularly from the trunk; they are much more slender, and, in comparison, longer At the extremities where the tufts of leaves occur they are only ⅛–¼ in in diameter.

The leaves are 4–12 in long and ½–1 in wide at the broadest part

The panicles are 4–12 in long, always drooping The rhachis and its branches are yellow-green in colour, as also are the sepals The petals are purplish-red or almost black; the anthers white, tinged with pink

These marked differences, as well as the fact that its flowering period is from September to October, distinguish this plant from the type

11. Dracophyllum Sinclairii Cheesem.

On ancient landslide, Tauroa, H. B. Matthews.

This is a somewhat rare plant in this district. What may prove to be a variety of it occurs in a kauri forest near Peria. It is a shrub or small tree, 12–30 ft high, with much narrower leaves.

12. Dracophyllum Urvilleanum A. Rich var. filifolium Cheesem.

On open ridges in forests and on moorlands, Kaiaka, Kaitaia, Peria, Tauroa.

13. Chenopodium triandrum Forst.

On rocks near the sea, not common.

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14. Atriplex Billardieri Hook. f.

On sandy shores, Rangaunu Harbour; rare.

15. Muehlenbeckia complexa Meissn. var. grandifolia Carse var. nov.

Frutex ramosissimus scandens, habitu M. australis Meissn. Caudex 12–25 mm diam Rami teretes, ultimati pubescentes. Folia 25–75 mm longa, oblongo-ovata, acuminata, ad basim cordata vel truncata, coriacea, glaucosa infra. Flores in spicas 50–75 mm. longas. Perianthus in fructu non succulens.

At first sight this well-marked plant might be mistaken for M. australis, but an examination of the ultimate branches shows that they are terete and densely pubescent, which at once settles the point. The leaves, too, are much more coriaceous than those of M. australis. In short, save in size and habit, it bears no resemblance to that plant.

This variety is confined to damp alluvial situations, and though, no doubt, connected by intermediates with the numerous and varied forms which this species assumes, is worthy of varietal distinction.

16. Phyllocladus glaucus Carr.

A small grove of this very handsome taxad occurs near Peria, and scattered trees are to be found within a few miles.

17. Earina sp. nov.

This new orchid will be described shortly by Mr. Cheeseman. It occurs in several places in the district, but is by no means common, and elsewhere has been found sporadically as far south as Wellington.

18. Pterostylis barbata Lindl.

In open moorland, Peria. H. B. Matthews! Very rare. Previously reported from Kaitaia.

19. Pterostylis trullifolia Hook f. var. gracilis Cheesem.

Not uncommon in open woods and moorlands.

20. Calochilus paludosus R. Br.

Moorland, Kaimaumau. H. B Matthews!

This orchid, which is very rare here, was also reported from Kaitaia.

21. Astelia sp.

A small Astelia with leaves 3–12 in. long, ¼–½ in. wide, is found in flower occasionally. The scape is 2–5 in long, flowers solitary in the angles of the bracts As I have not yet seen ripe fruit of this, I defer describing it for the present. I have gathered it also in the Whangarei district.

22. Juncus tenuis Willd. var. secundus Engelm.

A troublesome weed, much more plentiful than the type.

23. Juncus plebeius R. Br.

Has been known from Kaitaia for many years; also occurs near Ahipara.

24. Mariscus ustulatus (A. Rich.) C. B. Clarke forma grandispiculosus. Kukenth. in litt.

This is a form in which the spikelets are much longer than usual, and they are so set as to give the spike a fan-like appearance.

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25. “Scirpus Carsei” Kükenth. sp. nov. (In litt. Nov., 1913.)

“Proxima S. pauciflorus Lightf. utriculis plano-convexis marginibus non incrassatis evidenter rostratis distincte.”

Growing on muddy margin of channel leading to Lake Tangonge, Kaitaia. H. B. Matthews!

This is a small leafy Scirpus, a few inches high. It got, almost by accident, among a lot of sedges I was sending to Oberpfarrer Kükenthal some years ago, and was described from one small specimen. My own opinion, in which I have the support of Mr Cheeseman's opinion, is that it is merely a depauperated state of Scirpus lenticularis Poir., which occurs plentifully in the adjacent lake.

26. Schoenus Carsei Cheeseman.

In morass, Wharekis, Rangaunu Harbour. Not previously reported from north of Whangarei district, where I originally discovered the plant.

27. Cladium glomeratum R. Br. forma major Kükenth. form. nov.

“Foliis crassioribus, inflorescentia longiore, habitu elatiore.” (Kukenthal in litt., 1913.)

A much larger plant than the usual form. Leaves more numerous, 5–7 ft. long, compressed below; stems 4–6 ft. high, much less numerous than in the type; panicle 6–16 in long. Nutlets rather large.

In wet places, Kaitaia and Tauroa; not common.

28. Cladium Huttonii T. Kirk.

In swamps, usually near the sea; plentiful.

29. Cladium junceum R. Br. var. elatior Carse var. nov.

Culmus multo longior, 1–1.5 m., panicula ramosa 5–10 cm. longa.

A very tall slender form with culms 3 ft. to 4 ft. 6 m long. The panicles are more branched than usually, and are 2–4 in. long.

Not uncommon in shaded woods, Tauroa.

30. Lepidospermum filiforme Labill.

I first noted this handsome sedge in New Zealand from the Peria Gum Hills. It also occurs sparingly near Kaitaia, and plentifully on moorlands near the Rangaunu Harbour.

31. Uncinia uncinata (L. f.) Kükenth. var. laxior var. nov.

A more robust plant than the type. Culms far overtopping the leaves, 2–3 ft. long. Spikes slender, 6 in. long. Lax throughout.

Near to Kükenthal's U Pedicellata, but a much larger plant in all points.

From the North Cape to Ahipara; rare.

32. Uncinia riparia R. Br. var. affinis Kukenth.

In woods, Tauroa and Kaiaka; not common.

One form of this, identified by Kükenthal, appears to me almost identical with type specimens from the South Island; this grows in woods near

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the sea. The Kaiaka form, also identified by Kükenthal, is barely, if at all, distinguishable from the very plentiful var. Banksii C. B. Clarke; perhaps the leaves are slightly broader.

33. Carex testacea Sol.

In a small wood at Tauroa I gathered a form of this with culms 7–11 ft.!! in length—much longer than I have ever seen before.

34. Carex lucida Boott.

A form elongating in fruit to more than 8 ft. is not uncommon on the coast near Ahipara.

35. Carex comans Berggr. forma subsessilis Kükenth. form. nov.

“Spiculis inferioribus breviter pedunculatis.” (Kükenthal in litt., 1913.) Ahipara; not common.

36. Carex pumila Thunb. var. macrocarpa Carse var. nov.

C typo similis sed in omnibus partibus major. Foliae 5–8 dm. longae. Culmus 3–4 dm altus. Spiculae 25–35 mm. longae. Utriculus longior et latior.

A much larger plant than the type, with culms 8–15 in. long; leaves equalling typical form in breadth, but much longer, 20–30 in. The spikelets are 1–1 ½ in. long, and broader in proportion. The utricles are slightly longer and a good deal broader.

In damp hollows, among sand-dunes, Tauroa (Reef Point).

37. Danthonia pilosa R. Br. var. racemosa Buch.

On hilly slopes; common.

38. Poa anceps Forst. var. gracilis Cheesem.

On creek-banks, Ahipara.

39. Agropyron multiflorum T. Kirk var. longisetum Hack.

On the coast; common.

40. Asperella gracilis T. Kirk.

Near Kaitaia; rare H B Matthews!

41. Hymenophyllum Cheesemanii Bak.

In hilly forests; not uncommon.

42. Trichomanes reniforme Forst.

I have lately found a curious form of this fern, with the frond distinctly lobed, in some cases it is clearly bifurcated.

43. Pellaea falcata Fée.

Near Kaitaia, rare. H. B. Matthews!

44. Asplenium lucidum Forst. var. Lyallii Hook. f.

On rocky slope, Kaiaka; rare.

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Naturalized Plants.

Ranunculus arvensis Linn.

Kaiaka; not common.

Ranunculus Flammula Linn.

In wet kahikatea forest, Kaitaia.

This rare plant was discovered by Mr. H. B. Matthews. Previously recorded only from the Waiharakeke Stream, Piako (Cheeseman, T F., “Contributions to a Fuller Knowledge of the Flora of New Zealand: No. 1,” Trans N.Z Inst, vol. 39, p. 450, 1907).

Berberis sp.

Spread from a hedge in Kaiaka.

Fumaria muralis Sond.

A troublesome weed in gardens

Brassica nigra Koch.

Fields and waste places, common.

Lepidium ruderale Linn.

Kaitaia, Pukepoto; not common.

Polygala virgata Thunb.

Mangatete, Pukepoto; rare.

Polygala myrtifolia Linn.

Sand-dunes, west coast; rare

Tillaea trichotoma Walp.

Near Kaitaia. H. B. Matthews!

Lythrum Groefferi Tenore.

Not common.

Carum petroselinum Benth. and Hook f

Otukai; rare

Valerianella olitoria Pollich.

Not common

* Aster subulata Michx.

Spreading rapidly in all soils and situations

Helenium quadridentatum Labill.

Chiefly on coast: common.

Carduus pycnocephalus Linn.

Otukai; rare

[Footnote] * Now first recorded as occurring in New Zealand.

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* *Erechtites valerianaefolia DC.

Otukai; not common.

* *Erechtites Atkinsoniae F. v. M.

Spreading: a troublesome weed.

Anagallis arvensis Linn. var. coerulea Lamk.

Plentiful.

Solanum auriculatum Art.

Near Kaitaia. H. B. Matthews!

Verbascum Thapsus Linn.

Victoria Valley; spreading.

Chenopodium urbicum Linn.

In waste places; not common.

Tradescantia fluminensis Vell.

Creek-banks and lowland woods; spreading rapidly.

Panicum Linderheimeri.

Near Kaitaia; rare. H. B. Matthews!

Polypogon monspeliensis Desf.

Common in wet places.

Holcus mollis Linn.

Not uncommon

Glyceria aquatica Wahlb.

Sown many years ago in Fairburn Has spread in swamps. I have seen no ripe seed, but the plant spreads by its creeping rhizome.

Poa nemoralis Linn.

Not uncommon; in shaded spots.

Festuca ovina Linn.

Not uncommon.

Lolium perenne Linn.

As a rule, this grass is not very enduring, being subject to “rust,” a fungoid disease which weakens the growth or even kills the plant; but near Kaitaia is a large area of river-flat, sown with this grass more than sixty years ago, where it has held its place without deterioration.

Lolium italicum A. Br.

Plentiful.

[Footnote] * Now first recorded as occurring in New Zealand.

[Footnote] * Now first recorded as occurring in New Zealand.