i - i n
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1. Ix e rb a brexioides, Cunn. ; foliis oppositis te rnis alternisve lineai-ibus lineari-laneeolatisve coriaceis
sinuato-serratis glaben'imis, corymbis terminalibus, pedunculis sepalis petalisque sericeo-pubescentibus.
A . Otmn. Prodr. Hook. Ic. P la n t, t. 577, 578.
H a b . N o rth e rn Islan d . Bay of Islands, Cunningham, Colenso. W e llin g to n , B idw ill. N a t. name,
“ Tawari,” Col.
A pretty tree, 20 feet high or so, which Mr. Bidwill says resembles an Arbutus. Leaves 4 inches long, by i inch
broad, but variable, Flower inch broad, white. Capsule f inch broad. Seed 4—4 inch long.
N a t . O r d . XXXVIII. UMBELLIFERÆ, Juss.
Gen. I . H Y D EO CO TY L E , L .
Fructus a latere piano-compressus, biscntatus. Calycis margo obsoletus. Pe ta la ovata, apice non
inflexa. Carpella ev itta ta ; ju gis 5 filiformibus, v. carinali lateralibusque obsoletis, 2 intermediis accretis.
Semen carinato-compressum. Involucrum oligopbyUum v. 0.
Slender, creeping, often very small herbs, with alternate rounded, lobed or crenate leaves, and axillary long or
short peduncles, bearing round heads or simple umbels of minute flowers, but comparatively large fruits. Involucre
few-leaved or none. Carpels laterally compressed (one sometimes abortive). Calyx margin obsolete. Petals
not inflected at the apex. Styles curved backwards.—A large genus, common to the tropical and temperate
regions of the whole world. The New Zealand species are all small, and to be examined require a simple
lens, with which the very marked characters of many of the species may be easily recognized. (Name from úSap,
9-, and KoTvXri, a cup; from the cup-shaped leaf of the European water species.)
§ a. Peduncles very short. Umbels capitate, almost sessile.
1. Hydroootyle Americana, L . ; glaberrima, nitens, foliis orbiculari-reniformibus lobatis crenatis,
umbellis sessilibus V . brevissime pedunculatis 3 - 5 -floris, fru ctu orbiculariflavido, carpellis u trin q u e 1-costatis
altero sæpe vacuo liispidulo. L in n . Sp. P I. B ieh . Hydrocot. f . 10. Torrey et Gray, Fl. N . A m .p . 5 9 9 .
H a b . N o rth e rn Islan d ; in boggy places. Bay of Islands, Cunningham, Sinclair, Colenso, etc.
Perfectly smooth, glistening, very delicate. Leaves orbicular, 4—1 inch broad, 5 -7 -lobed; lobes blunt, crenate.
Carpels yellow when ripe, very small, with one rib on each side, one of them often empty and hispid. This appears
to be a small state of a rather frequent North and South American plant ; the leaves are more lohed and smaller
than ill specimens from the United States ; but in these respects agree with Bahia (Brazil) ones. Like all the
other New Zealand species, it varies extremely in size, depth, and form of the leaf-lobes.
§ b. Peduncles elongated. Mowers &
2. Hydrocotyle heteromeria, DC. ; tenella, glaberrima v. parce laxe pilosa, nitens, foliis reniformi-
rotundatis 5 -7 -lo b a tis crenatis, pedunculis petiolis brevioribus, umbella capitata 6 -8 -flo ra, carpeUis ilavidis
utrinque 1-costatis altero liispido. DC. P r o d r .v .l . p . 66. A, Rich. Plora. A . Cmm. Prodr. H . glabra,
Ba n k s et Solander, M S S . et Ic .
H a b . N o rth e rn Islan d , B a n k s and Solander. Bay of Islands and Auckland, Sinclair, Colenso, etc.
Slender, sliining, quite smooth, or with a few lax long hairs on tlie petiole and peduncle. In all respects but
the above, and the peduncles being about half the length of the petioles or shorter, it entirely resembles the
11. Americana, of which it may be a variety.
3. Hydrocotyle Asiatica, L . ; pubescens v. glabrata, robusta, repens, foliis fasciculatis ovato-oblongo-
V . rotundato-cordatis obtusis sinuato-crenatis v. integerrimis, pedunculis folio brevioribus, involucri foliolis
2 ovatis, umbellis 2 -3-floris, carpellis magnis u trin q u e 2 -3 -co s ta tis planis v. reticulatis. L in n . Sp. P I.
DC. P rodr. A. Cunn. Prodr. H . cordifolia, noh., in Rook. Ic. P la n t, t. 3 0 3 . H . indivisa. B a n k s et Sol.
M S S . et Ic .
H a b . A b u n d an t in marshy places th ro u g h o u t th e Islands, Ba n k s and Solander, Cunningham, etc.
The largest New Zealand species, and one universally distributed throughout the Tropics of both hemispheres,
the temperate latitudes of North and South America, the Cape of Good Hope, Australia, and Tasmania. I t is
perhaps the most distinct species of the genus, easily known by its robust habit ; its leaves fasciculate at the rooting
knots of the creeping stem, ou petioles 1 -7 inches long, with the lamina cordate, with a shallow sinus at the
base, blunt, sinuated or entire ; its short peduncles ; conspicuous involucre ; and large, broad-ribbed carpels.
4. Hydrocotyle tr ip a rtita , Br. ? ; glabra, caule breviusculo, foliis parvis palmatim 3 -partitis, segmentis
cuneatis 2 -3-fidis, pedunculis folio subæquüongis, umbella c ap itata 3 -5 -flo ra, carpellis pallidis
u trin q u e 1-costatis. DC. Prodr. v. h . p . 65 [non Rook. Ic. P la n t, t. 3 1 2 ).
H a b . N o rth e rn Islan d . Swamps a t th e foot of Tongariro, Colenso.
I am in doubt whether this be the plant of Mr. Brown or not ; it is certainly not that figured and described by
me as such in the ‘ leones Plantarum.’ My New Zealand specimens are very insufficient.—Whole plant an inch
or so long, rather stout, smooth. Leaves divided to the base into three cuneate segments, k inch long, lobed.
Peduncles nearly as long as the petioles. Umbels few-flowered. Carpels pale, sessile, with one rib on each face.—
This much resembles starved specimens of Ranunculus acaulis.
5. Hydrocotyle Novæ-Zelandiæ, DC. ; pilosa v. glabrata, caule elongato h irto tenello petiolis pe-
duncuHsque superne præcipue retrorsum liirsutis, stipulis latis membranaceis persistentibus, foliis reuiformi-
ro tu n d a tis sub-7-lobis acute dentatis v. obtuse crenatis glabratis, peduncuUs petiolo brevioribus æqui-
longisve, umbellis laxe 5-10-floris, carpeUis pallidis u trin q u e obsolete 1-costatis. DC. Prodr. v. 4i. p . 67.
H . dicliondræfolia et H . Novæ-Zelandiæ, A . Cunn. Prodr. H . püosa, B a n k s et Sol. M S S . et le .
H a b . Very abu n d an t th ro u g h o u t th e Islan d s, B a n k s a n d Solander, etc.
A very common and variable plant, nearly allied, if not identical, with a Chilian species [II. Bonplandii?).
Stems 1 -10 inches long, more or less hairy, especially on the peduncle and petiole, where the hairs are reversed;
also variable in the depth of lobiiig and sharpness of the teeth or crenatm-es, and of the depth of the sinus of the
leaf. Dr. Lyall’s specimens from Bluff Island have a prostrate almost woody stem, but the stems are usually weak
and traihng, and, as weU as the whole plant, pale yellow-green. Stipules conspicuous, membranous. Leaves
4 -1 inch broad, orbicular-reniforin. Peduncles shorter than or as long as the leaves. Umbels loosely five- to ten-
flowered. Carpels pale, with one often obscure rib on each face.— I have imperfect small specimens apparently of
this plaut, with leaves three- to five-lobed to the middle.
6. Hydrocotyle moschata, F o rst. ; bispido-pilosa, pusilla, caule (pro planta) robusto repente, foliis late
reuiformi-rotundatis 5 - 7 -lobis, lobis ai'gute dentatis, pedunculis folio brevioribus, capitulis multifloris,
fructibus dense compactis parvis brunneis, carpellis u trin q u e costatis dorso acutis. Forst. Prodr. DC.
Prodr. V. 4. p . 67. A . R ich , et A . Cunn., etc.
Var. /3. compacta; foliis profundius lobatis, lobis inciso-dcntatis, pedunculis brevibus. H . compacta,
DC. Prodr. A . R ich . A . Cunn. IT. capitata. Ba n k s et Sol. M S S . et Ic.
H a b . Botli varieties abu n d an t tliro u g h o u t th e Islands, B a n k s a n d Solander. Forster, etc.
This common little plaut is, I think, identical with a Chilian one ; it resembles in habit and foliage small robust
hairy specimens of IL Novæ-Zelandiæ, from whicli it differs in the much smaller crowded dark brown fruits, the
carpels of which have sharper ribs and are sharp at the back. Though generally very distinct, I have many
specimens which might belong to either. Stems much branched, 1 -3 inches long. Stipules membranous, con