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Scales distichous, acute, keeled, chesnut-browu, green at the back, three- or four-flowered. Bristles six, long, slender.
Na t pale brown, shining, striated with long impressed dots.— Closely allied to the South Chilian 0. antárctica (Fl.
-Antarct. p. 361. t. 147), but the leaves are much shorter.
4. Chætospora imberbis, B r .j glaberrima, culmis fasciculatis foliosis, foliis subflaccidis lineari-setaceis
sulcatis superne canaliculatis brevioribus, spiculis parvis 1 -3-floris castaneis iu capitula bracteata dense
congestis sessilibus, bracteis foliaceis elongatis, squamis disticliis acutis enerviis infimis arista scaberula,
setis 6.— B r . Brodr. ,
H ab . N o rth e rn Island. E a st Coast, Colenso.
A span high, tufted, leafy, quite glabrous, more flaccid than its congeners, resembling a small Juncus. Leaves
numerous, linear-subulate, acute, channelled above, back striated, longer than the leafy culms. Spikelets small,
1 line long, black or chesiiut-brown, one- or two-flowered, densely clustered into one or two bracteate heads ; sometimes
oue cluster is on a long pedicel. Scales few, distichous, with white margins ; upper acute, glabrous ; lower
with hispid, long points. Bristles six, slender. Nu t not ripe.—A native of Australia and Tasmania.
5. Chætospora axillaris, Br. ; pusilla, culmis cæspitosis procumbentibus rariu s ascendentibus compressis
radicantibus ramosis, ramis p rostratis distiche foliosis, foliis paten tib u s anguste lineari-subulatis
obtusis, spiculis solitariis binisve axillaribus et terminalibus breve pediceUatis sessilibusve paucifloris,
squamis subdisticlie imbricatis 3 supremis fertilibus, setis 6 ovario longioribus, nuce late ovata pallida
subacuta trig o n a vix p u n c ta ta .— B r . Brodr. (Tab. L X I I . A .)
H ab. No rth e rn Islan d . A b u n d an t in wet places, A . Cunningham, etc.
jA small, gi-een, leafy, tufted, flaccid p lan t; also found in Australia. Oulms\-3 inches long, generally creeping,
branched. Leaves very narrow, linear setaceous, blunt, green, spreadmg. Spikes soUtary or rarely two together, 1-3
lines long, axillaiy, on short peduncles. Scales few. pale, distichously imbricated, keeled, subacute, green, with
green backs, one or two upper fertile. Bristles three, longer than the ovary. Stamens three. Style trifld. Nut
small, white, smooth and polished, three-angled, sharp-pointed, broadly obovate.—Very dissimilar in habit to its
congeners, and closely resembling Isolepis fluitans of Europe, in habit and the compressed branched stem, but
diffenng in the more foliaceous habit, axillary spikes, trigonous nut. three stigmas and bristles.—P l a t e LXII. A.
Fig. 1, spikelet; 3. flower and upper scale; 3, ripe fruit and bristles; 4, the fruit cut open; 5, vertical section
of the seed ; 6, embryo :— all magnified.
§ b. Scales imbricated all round. Spikelets terete.
6. Chætospora concinna, Hook. fil. ; pusilla^ cæspitosa, culmis brevibus stn a tis basi foliatis, foliis
setaceis, spicula solitaria terminali v. laterali castanea 2 -3-flore, squamis undique irnbiicatis convolutis
subacutis carinatis enerviis, setis hypogynis G, nuce lævi sparse hispida v. pubesceute nitida basi pilis
fastigiatis brevibus dense barbato. (Tab. L X I I . B .)
H a e . N o rth e rn Island. E a st Coast and base of Tongariro, Colenso.
A very small, BleocharUY\.Oi plant. Hoots tufted, creeping. Culms erect, setaceous, leafy below, 1 -3 inclies
high, slender. Leaves shorter thau the culms, setaceous, with chesnut-hrown sheaths. Spikelet cylindrical, ovate,
solitary, shining, brown, 3 lines long, lateral or terminal when the lower scale forms the apex of the culm, and is
setaceous. Scales rolled round one another on all sides, blunt, two- or three-flowered. Stamens and Styles three.
Nu t pale brown, trigonous, turgid, scabrous or glabrous, surrounded at the base with a dense brush of short inarticulate
bristles, besides the scabrous scales.—Allied to 0. nitens, but the spikelets are nearly sohtary; scales more
convolute and blunter, and the hypogynous bristles quite different.—P late LXII. B . Fig. 1, spikelet; 3, the
same, with the lower scales removed ; 3, nut ; 4, hairs from its base -.— ail magnified.
7. Chætospora nitens, B r. ; culmo gracili teretiusculo v. trigono striato foliis setaceis canaliculatis
longiore, spiculis brevibus sessilibus glomeratis lateralibus rarius terminalibus parvis paucifloris foliolo
involucran rariu s auctis, squamis nitidis la te ovato-rotundatis obtusis, setis hypogynis plumosis, stylo
3-fido, antheris mucronatis, nuce la te trigono n itid o .— B r . Prodr.
H ab. N o rth e rn Islan d . Sandy flats on th e E a s t Coast, Colenso.
A small, slender plant, 3 inches to a span high. Culms leafy below, with bright, biwvn, varnished sheaths,
triangular or rounded, fm-rowed, longer than the setaceous grooved leaves. Spikelets IY-3 hnes long, broad, sessile,
crowded, lateral or rarely terminal. Scales few, very broad, blunt, truncate or two-lobed. Setæ very numerous,
small, unequal, or six and finely divided into many hairs. N u t very broad, thi’ee-angled, polished. Styles three.—
Very closely allied to a Valdivian (South America) species, which only differs in the longer bristles being fimbriated
at the base. C. nitens is a native of South Australia and Tasmania.
Gen. IX . O R EO BOLUS , B r .
Flos soKtarius, pedunculatus. Squamæ 2 - 3 , spathaceæ. P e ria n th ium (squamulæ hypogynæ) 6 -p artitum
, persistens. Stamina 3. Sty lus 3-fidus, basi bulbosus. N u x 3-gona, crustácea, obo v ata; p u ta mine
apice incrassato.
A small genus of densely tufted, mossy, rigid, subulate-leaved plants, forming convex patches on the mountains
of Tasmania, Fuegia, and New Zealand. The 0. pectinatus was discovered in Auckland Island, forming great
convex green lumps in the peaty soil.-— Stems densely tufted, 1 -3 inches long. Leaves rigid, subidate, distichous
and equitant, with hard striated sheaths, ciuwed outwards and upwards, l i - 3 I inches long. Floicers minute, solitary,
on very short terminal peduncles, which are elongated (1 inch) and rigid in fruit. Scales two or three, enclosing one
flower, with six ovate acummate scales in two series, forming a perianth, which is persistent after the nut falls
away. Stamens three; filaments long. Style one, trifid, bulbous below. Nut obovate. (Name from opoç, a
mountain, and flwXos, a ball.)
1. Oreobolus pectinatus, H o o k .f ll.; foliis distichis arete imbricatis patenti-curvis subulatis p u n g en tib
u s.— F l. An ta rc t. p . 87. t. 49.
H ab. Mountainous regions. Taupo plains and top of Ruahine mountains, Colenso. Morse’s mountain,
Nelson, alt. 600 0 feet, B idw ill.
Gen. X. C LA D IUM , Browne.
Spiculæ l-3 -flo ræ . Squamæ undique imbricatæ, pleræque vacuæ. Setæ hypogynæ 0. S ty lu s deciduus,
cum ovario articulatus. N u x styli basi æquali mucronata ; núcleo non transversim rugoso.
Generally large sedgy or rush-like plants, found iu many parts of the world, with simple or decompound, spicate,
fascicled, or panicled inflorescence, and round, triquetrous, or flat stems. Some of the New Zealand species are
anomalous, and may be referred to Lampocarya or Lepidosperma.— Spikes of many scales, imbricated all round :
upper three or four with triandrous flowers. Bristles or scales 0, or very obscure. Nu t with a deciduous style,
sharp, not thickened at the top. Seed not transversely wrinkled. (Name from xAaSos, a branch; from the many
branched spikes.)
1. Cladium glomeratum, Br. ; culmis teretibus, foliis elongatis tercti-subulatis caulinis abbreviatis,
panicula coarctata, spiculis 2 -3 -ilo ris in fasciculos capitulave pedunculata v. sessilia congestis spathaceis,
squamis ciliatis ovatis acuminatis dorso scaberulis, filamentis non incrassatis, ovario trigono apice globoso-
iiicrassato puberulo.— B r . Prodr. Scboenus rubiginosus, Ba n k s et Sol. MSS.
H ab. N o rth e rn and Middle Islands. Opuragi, B a n k s and Solander. Marshy places, frequent,
Sinclair, etc. Nelson, F r . Monro.-
Culms tufted at the base, not creeping, 3 feet bigh. Leaves sheathing, 1 foot long, terete, subulate. Panicles