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Manual of the New Zealand Flora.

1. Clematis, Linn

1. Clematis, Linn.

Climbing undershrubs with slender flexuous branches, rarely dwarf and prostrate. Leaves opposite, usually ternately divided into 3 stalked leaflets, which are either entire or more often variously lobed or cut; petioles often twining. Flowers in few-or many-flowered axillary panicles, diæcious in the New Zealand species. Sepals 4–8, petaloid, valvate in the bud. Petals wanting. page 2Stamens many. Carpels numerous, each with one pendulous ovule. Fruit a head of sessile achenes, in all the New Zealand species produced into long feathery persistent styles.

A genus of over 100 species, found in most temperate climates, rare in the tropics. The New Zealand species are all endemic, and all possess once-or twice-ternately divided leaves and diæcious flowers, the males without any carpels, the females usually with a few imperfect stamens. Most of them vary greatly in the foliage, especially the large-leaved species. These in their normal state have 3-foliolate with the leaflets toothed or lobed, but all run into varieties in which the leaves are biternate or decompound, the ultimate segments being much reduced in size. These forms are most difficult of discrimination, especially when in a flowerless condition, and some of them are probably not permanent states.

A.Sepals white.
Large and stout. Leaflets usually entire. Flowers 2–4 in. diam. 1. C. indivisa.
Slender, pale-green. Leaflets toothed or lobed. Flowers 1–1½ in. diam. 2. C. hexasepala.
Small, slender. Leaflets pinnate or pinnately. divided. Flowers ½–1 in. diam. 3. C. australis.
B.Sepals yellowish or greenish-yellow (purplish in O. quadribracteolata).

* Sepals usually 6 (5–8). Leaflets usually large and well developed.

Slender. Leaflets glabrous or nearly so, toothed or lobed. Flowers greenish-yellow. Sepals silky 4. C. Colensoi.
Stout. Leaflets coriaceous, pubescent, toothed or lobed. Flowers yellow. Sepals densely tomentose 5. C. fætida.
Slender. Leaflets thin, silky-pubescent, often entire. Flowers yellow. Sepals silky Anthers broad, tipped with a minute appendage 6. C. parviflora

** Sepals 4. Leaflets minute, wanting in C. afoliata.

Usually leafless. Flowers greenish-white, ½–¾ in. diam. 7. C. afoliata.
Slender, brownish-green. Leaflets minute, ⅙–½ in. long, entire or toothed. Flowers yellow, ½ in. diam. 8. C. marata.
Very slender. Leaflets minute, usually linear. Flowers purplish, ⅓–½ in. diam. Sepals narrow-linear 9. C. quadribracteolata.
1.C. indivisa, Willd. Sp. Plant, ii. 1291.—A large woody climber, often covering bushes or small trees. Stem stout, frequently as thick as a man's arm. Leaves 3-foliolate, coriaceous, glabrous; leaflets 1–4 in. long, all stalked, ovate-oblong or ovate-cordate, rarely narrower and linear-oblong, usually entire. Flowers in axillary panicles, most abundantly produced, large, white, 2–4 in. diam. Sepals 6–8, oblong. Anthers oblong, obtuse. Achenes numerous, downy, with a plumose tail often more than 2 in. long.—A. Rich. Fl. Nouv. Zel. 288; A. Cunn. Precur. n. 635; Raoul, Choix, 47; Hook. f. Fl. Nov. Zel. i. 6; Handb. N.Z. Fl. 2; Kirk, Students' Fl. 2; Hook. Bot. Mag. t. 4398 (a form with the leaflets lobed). C. integrifolia, Forst. Prodr. n. 231.

Var. lobulata, Kirk, Students' Fl. 2.— Leaflets lobed or even twice ternate.

North and South Islands, Stewart Island: Abundant throughout. Sea-level to 2500 ft. Puawhananga. August–November.

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A variable plant, but easily recognised by its great size and large showy white flowers. The leaves are usually entire, but are occasionally lobulate, especially in young plants. Mr. Kirk's variety linearis, which has narrow-linear leaves, 4–6 in. long by barely ½ in. broad, appears to me to be only a transient juvenile form.

2.C. hexasepala, D.C. Syst. i. 146.—Much smaller and more slender than C. indivisa. Leaves 3-foliolate, pale-green, coriaceous, glabrous; leaflets 1–3 in. long, stalked, narrow ovate-oblong or ovate-cordate, acute or acuminate, usually irregularly toothed or lobed, rarely entire. Flowers numerous, 1–1½ in. diam., white. Sepals 6–8, linear-oblong, obtuse, downy. Anthers long, linear, obtuse. Achenes numerous, narrow-ovoid, pilose.—A. Cunn. Precur. n. 637; Raoul, Choix, 47; Hook. f. Handb. N.Z. Fl. 2; Kirk. Students' Fl. 3. C. hexapetala, Forst. Prodr. n. 230; A. Rich. Fl. Nouv. Zel. 288. C. Forsteri, Gmel. Syst. 873. C. Colensoi, Hook. f. Fl. Nov. Zel. i. 6, t. 1 (not of Handb. N.Z. Fl.).

North Island: From the Kaipara Harbour to Cook Strait; not uncommon, especially in the Upper Waikato and Taupo districts. South Island: Queen Charlotte Sound, Forster; near Moutere (Nelson), T. F. C. Recorded from Canterbury (Armstrong), Otago (Lindsay), and the Bluff Hill (Kirk). Piki-arero. September–November.

Easily separated from C. indivisa by the smaller size, narrower pale-green leaves, which are almost always toothed, and by the smaller flowers.

3.C. australis, T. Kirk, Students' Fl. 3.—Stems and branches slender, much branched, glabrous or pubescent at the tips. Leaves 3-foliolate, glabrous, somewhat coriaceous (especially in the small-leaved forms); leaflets very variable in size, ⅓–1 in. long, pinnate or pinnately lobed, segments or lobes usually again toothed or lobed. Flowers white, ½–1 in. diam., in few-flowered panicles or solitary on long slender peduncles clustered in the axils of the leaves. Sepals 5–8, downy. Achenes narrowed into the style, usually pilose, sometimes glabrous when fully mature.

South Island: Hilly and mountain districts in Nelson and Canterbury, not uncommon. 500–3500 ft. November–January.

A puzzling plant, large states of which can only be separated from C. hexasepala by the pinnately divided leaflets, while smaller forms come very nearly to C. Colensoi var. rutaefolia, from which, however, it can usually be distinguished by the larger white flowers and more pointed sepals.

4.C. Colensoi, Hook. f. Handb. N.Z. Fl. 2.—Stems and branches slender, glabrous or silky at the tips. Leaves 3-foliolate, membranous or slightly coriaceous; leaflets stalked, ⅓–1¼ in. long, crenate, unequally toothed or 3-lobed, or again ternately or pinnately divided. Flowers greenish-yellow, ½–1 in. diam., in few-or many-flowered panicles, or more usually solitary on slender peduncles fascicled in the axils of the leaves. Sepals 5–8, oblong, silky. Anthers linear. Achenes silky or sometimes nearly glabrous when mature.—Kirk, Students' Fl. 3. C. hexasepala, Hook. f. Fl. Nov. Zel. i. 7 (not of D.C.). page 4

Var. rutaefolia, Hook, f. Fl. Nov. Zel. i. 7.—Leaves biternate or bipinnate; secondary leaflets often stalked. Usually smaller than the type.

North Island: Both varieties common about Wellington, and extending northward to Hawke's Bay and Cape Egrnont. South Island: Nelson—Wairau Valley, Buller Valley, T. F. C. Canterbury—Kowai River, Petrie! Ashley Gorge, Cockayne! Sea-level to 3000 ft. November–January.

A variable plant, not always readily distinguishable from states of C. hexasepala or C. australis.

5.C. fætida, Raoul, Choix, 23, t. 22.—Stems stout, woody; branches numerous, intertwined, often covering bushes or small trees; young shoots clothed with fulvous pubescence. Leaves 3-foliolate, slightly coriaceous, usually thinly pubescent on both surfaces, but often becoming glabrous when old; leaflets 1–2 in. long, all stalked, ovate or ovate-cordate, acute or acuminate, entire or irregularly toothed or lobed. Panicles large, much divided; branches usually densely clothed with pale or fulvous tomentum. Flowers very numerous, small, ½–¾ in. diam., yellowish, strongly odorous but certainly not fætid. Sepals 6–8, linear, obtuse or acute, densely tomentose on the outside. Anthers linear-oblong, obtuse. Achenes narrow-ovoid, very silky, narrowed into short plumose tails—Hook, f. Fl. Nov. Zel. i. 7; Handb. N.Z. Fl. 2; Kirk, Students' Fl. 4. C. Parkinsoniana, Col. in Trans. N.Z. Inst. xii. (1880) 359; xiv. (1882) 331.

North and South Islands: Not uncommon in lowland districts from the North Cape to the south of Otago. September–November.

Varies considerably in size, texture, cutting of the leaves, degree of pubescence, &c.; but can always be recognised by the pale or fulvous pubescence on the leaves, young shoots, and branches of the panicle, by the small yellow flowers, which are usually produced in enormous numbers, and by the dense tomentum on the sepals. The type specimens of Mr. Colenso's C. Parkinsoniana, preserved in his herbarium, show no points of difference from the ordinary form of C. fætida.

6.C. parviflora, A. Cunn. Precur. n. 636.—More or less clothed with silky fulvous pubescence. Stems slender, wiry, not nearly so robust or so much branched as in the preceding species. Leaves 3-foliolate, thin and almost membranous, more rarely sub-coriaceous, tawny-pubescent, especially on the veins and under-surface; leaflets ½–1½ in. long, all stalked, ovate or ovate-cordate, usually entire but occasionally irregularly lobed, subacute. Panicles slender, branched; rhachis and pedicels tawny-pubescent. Flowers small, ½–¾ in. diam., yellowish. Sepals 6–8, linear, more or less clothed with silky pubescence. Anthers short and broad, oblong, with a minute appendage at the apex of the connective. Achenes narrow-ovoid, silky.—Raoul, Choix, 47; Hook. f. Fl. Nov. Zel. i. 7; Handb. N.Z. Fl. 2; Kirk, Students' FL 4.

Var. depauperata, Hook. f. Handb. N.Z. Fl. 2. — Leaflets very small. Sepals narrowed into long slender points.

Var. trilobata, Kirk, Students' Fl. 5. — Leaflets deeply 3-lobed; lobes entire or cut. Flowers smaller. Sepals more pubescent.

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North Island: The typical form in various localities from the Three Kings Islands and the North Cape to Hawke's Bav, but often local. Var. trilobata: Bay of Islands, Kirk! Northern Wairoa, T. F. C.; Te Aroha, T. F. C.; between Gisborne and Napier, Bishop Williams! South Island: Var. depauperata: Nelson, Travers. Var. trilobata: Okarita, A. Hamilton. Sea-level to 1500 ft. September–November.

A handsome species, closely allied to C. fætida, but at once distinguished by the smaller size, more slender habit, smaller and thinner usually entire leaflets, narrower silky sepals, and especially by the broad anthers, which have a minute swelling at the tip of the connective. I have not seen specimens of Hooker's var. depauperate.

7.C. afoliata, Buch. in Trans. N.Z. Inst. iii. (1871) 211.— Stems and branches leafless. wiry, striate, glabrous, often much intertwined. Leaves usually reduced to petioles in the mature plant, when present consisting of 3 minute long-stalked ovate or triangular leaflets; in young plants more frequently developed and rather larger. Flowers greenish-white, ½–¾ in. diam., in fascicles of 2–5 in the axils of the petioles; peduncles slender, pilose, each with a pair of minute ovate bracteoles. Sepals 4, ovate-or oblong-lanceolate, usually acute, silky. Anthers linear. Achenes ovoid, silky.—Kirk, Students' Fl. 3. C. aphylla, Col. in Trans. N.Z. Inst. xix. (1886) 259.

North Island: Without locality, Colenso! Puketapu (Hawke's Bay), H. Hill! South Island: "Various localities from Nelson to Otago, but local. Picton, J. Rutland! Marlborough, Buchanan; Hanmer Plains, H. J. Matthews! Waiau River, Kirk; Canterbury Plains, N. T. Carrington! Waitaki Valley, Buchanan, Petrie! Duntroon, Petrie! Sea-level to 2000 ft. September–October.

A very curious plant, often forming dense masses of intertwined stems and branches several feet in length. I have not seen flowering specimens of Mr. Colenso's C. aphylla, but the stems and branches show no difference from the common state of the species.

8.C. marata, Armstr. in Trans. N.Z. Inst. xiii. (1881) 335.— Stems slender, much branched, often forming dense interlaced masses scrambling over bushes or among grass, brownish-green, pubescent, grooved. Leaves 3-foliolate, usually pubescent on both surfaces; petioles variable in length, 1–4 in.; leaflets small, ⅙–½ in. long, all stalked, exceedingly variable in shape, narrow-linear to ovate, acute or obtuse, entire notched or lobed, or even again 3-partite. Peduncles 1-flowered, solitary or 2–4 together in the axils of the leaves, pubescent. Bracteoles in 2 pairs, connate at the base, upper pair much the larger, often foliaceous. Flowers yellowish, small, ½–¾ in. diam., sweet-scented. Sepals 4, linear-oblong, acute or obtuse, silky. Anthers linear. Achenes narrow, margined, silky or nearly glabrous when old, narrowed into rather long plumose tails.—Kirk, Students' FL 4.

North Island: Upper Thames Valley, from Te Aroha southwards, T. F. C., Petrie! Taupo, T. F. C.; East Cape, Kirk; probably not uncommon in the interior. South Island: Apparently common throughout, Armstrong! Buchanan! Kirk! &c. Sea-level to 3000 ft. September–November.

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The brownish colour, slender habit, minute leaflets, and small flowers distinguish this from all others except C. quadribracteolata, to which some forms approach far too closely. A variety collected by Mr. Petrie at Tuapeka (Otago) appears to be quite intermediate, and might almost be referred to either species. North Island specimens are usually more slender and have smaller leaflets than the southern ones. Some of Mr. Petrie's Otago specimens are remarkable for their large foliaceous bracteoles, which are linear-spathulate and sometimes ¾ in. long.

9.C. quadribracteolata, Col. in Trans. N.Z. Inst. xiv. (1882) 329.—Stems and branches very slender, branched, trailing, 1–3 ft. long, glabrous except the very young shoots, Leaves few, trifoliolate; petioles slender, 1–2 in. long; leaflets minute, ⅙–¼ in. long, usually linear or lanceolate, but varying to linear-oblong, ovate-lanceolate, or triangular-acute, glabrous, entire or one or all 3-lobed. Peduncles solitary or 2–3 together in the axils of the leaves, 1-flowered, usually shorter than the petioles, pubescent; bracteoles. 2 or 3 pairs, connate, upper the largest, sheathing at the base, rounded, obtuse. Flowers purplish, sweet-scented, ¼–¾ in. diam. Sepals 4, linear or linear-oblong, usually acute. silky. Anthers linear. Achenes small, almost glabrous when fully ripe, narrowed into short plumose tails.—Kirk, Students' Fl. 4. C. fætida var. depauperata, Hook. f. Fl. Nov. Zel. i. 7; Hanclb. N.Z. Fl. 2.

North Island: Low grounds in the Hawke's Bay District; Lake Rotoatara, Colenso! Petane, A. Hamilton! between the Ngaruroro and Tukituki Rivers, Sturm.

This can only be separated from the preceding by its smaller size, more-slender habit, narrower leaflets, purplish flowers, and narrower sepals. Further investigation may prove both to be forms of one variable plant.