84 FLOEA OF NEW ZEjiLAND.
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spicuous. Leaves scattered ; petioles 4 -1 incli long; lamina 4 - ^ incli broad, broadly reniform-orbicular, five- to
seven-lobed, sharply toothed. Peduncles shorter aud more slender than the petioles. Carpels dark brown, very
small.— liirta, Br., of Australia and Tasmania, seems intermediate between this and I I. Novæ-Zelandiæ. The
var. compacta has the leaves more deeply lobed, and the lobes more deeply and shai'ply cut.
7. Hydrocotyle microphjUa, A. C u n n .; parvula, depressa, pilosa v. glabrata, subrobusta, foliis reni-
formi-orbiculatis laxe pilosis 5 - 7 -lobis, lobis 3 -5 -d en ta tis , pedunculis glabris pétiolo æquilongis, capitulis
multifloris, fructibus parvis brunneis dense congestis, carpellis u trin q u e 1-costatis dorso subacutis. A . C
Prodr.
H a b . N o rth e rn Islan d . Probably common, b u t overlooked from its smaU size,
Colenso.
A veiy small, rather stout, short-stemmed, tufted, depressed plant, sparingly hairy. TdicUs \ inch long.
Leawi \ inch broad, variously lobed to about one-third their breadth ; lobes bluntly but coarsely toothed. Capdula
very small, red-brown, hardly 1 line diameter, of many crowded sessüe fruits. Oarfeh as in II. moschata.
8. Hydrocotyle disseeta, Hook. fil. ; pubescens, caule tenello, foUis reniformi-orbiculatis 5 -7 -p a rtitis
segmentis obovatis v. cuneatis laceris e t inciso-dentatis, peduucuHs gracilibus, capitulis m u lti(4 0 -5 0 )-flo n s,
fructibus dense congestis p arv is? carpeUis u trin q u e obscure 1-costatis dorso convexis.
H a b . N o rth e rn Island, Colenso.
I have only imperfect specimens of this most distinct-Iookmg plant. Stems slender, hairy, almost hispid, as
are the petioles, peduncles, and leaves, especially underneath. Leaves alternate or fascicled ; petioles 1 inch long ;
Inreinn 3 ¡noi, Proad, cut to near the base into five spreading, obovate, cuneate divisions, which are deeply lobed on
the sides and margin, and sharply ineiso-dentate. TedmcU slender, shorter than the petiole. CafftuUm pale,
globose, of forty to fifty densely-packed smaU fi-nits. Carfels one-ribbed on each side, rounded at the back. Some
latitude must be aUowed for this description, which is drawn up from imperfect materials. The plant is alfied to
H. moschata.
§ c. Peduncles elongated. Flowers pedicellate.
9. Hydrocotyle elongata, A. Cunn. ; pilosa v. glabrata, teneUa, caule elongato, stipulis paivis, foliis
late orbiculari-reniformibus profunde 5 -7 -lo b a tis, lobis ovatis arg u te dentatis, peduncuHs gracUibus petiolo
lougioribus, umbeUis multifloris, pediceUis elongatis radiatis, floribus minimis, fractib u s parvis la te didymis
bruimeis, carpellis u trin q u e 1-costatis. A . Cunn. Prodr.
H a e . N o rth e rn an d Middle Islan d s. F rom th e Bay of Islan d s, Cunningham, etc., to Du sk y Bay,
L ya ll.
A very distinct species from any other New Zealand one, b u t very near an Andes plant. Stems slender, 8-10
inches long in large specimens, more or less hairy, as are aU other parts of the plant except the flowers and fruit.
RelwUs l Y inches long. Leaves inch broad, deeply five- to seven-lobed ; lobes sharply toothed. Peduncles
considerably longer than the leaves, very slender, UmieU twenty- to fifty-flowered. Mowers very minute, on
slender strict pedicels, * -3 lines long. Fruit dark brown, broadly didymous, very smaU. Cartels with one rib on
each side.
Gen. I I , POZOA, Lag.
Fructus prismatico-tetragonus v. dorso compressus ; carpeUis dorso concavis ; jugis lateralibus dissitis ;
commissura valde contracta. Calycis margo 5-dentatus, persistens. Fe ta la 5, apice non inflexa. Flores
mouoici, dioici, v. hermaphroditi. Involucrum mouo-poly-phyllum.
Herbs with radical leaves, and scapes, or creeping rhizomes, which arc leafy, and bear scapes at intervals ;
inhabitants of temperate South America, New Zealand and Lord Auckland’s Group, and Tasmama [Pozopsis) ; the
leaves are rounded in outline, or lobed, or partite. Umbels simple, with a toothed cup-shaped or a many-leaved
involucre. Calyx five-toothed. Petals without inflexed apices. Styles moderate. Carpels compressed at tbe back,
concave or convex, with five ribs, two lateral, two approximated at tbe suture, and one dorsal.—Tbe New Zealand
species are herraaplirodite, the Americau have unisexual flowers, and some Tasmanian ones are dioecious. The
Antarctic genus, Azorella, differs from this more in habit than by any characters of the fruit ; and I now feel
satisfied that A. Ranuncidus, D’Urv. (Fl. Antarct. p. 285. t. 98), should be included in Pozoa, aud rank very near
the P. trifoliolata and P . reniformis of Lord Auckland’s Group : these, with the Tasmanian Pozopsis cordifolia
(Hook. Ic. Plant, t. 859) and the original South American species, form a vei-y natural geuus, of which P . conaeea
and P. hydrocotylifolia have entire involucres. Tbe rest all belong to the subgenus Schizeilema, which I proposed
(in Fl. Antarct. p. 15) for the species Avitb many-leaved involucres. (Named in honour of Joseph del Pozo, a
Spanish botanist.)
1. Pozoa trifoliolata, Hook, fil.; gracilis, glaberrima, pusilla, rhizomate repente radicante hie illic
folioso, foliis longe petiolatis 3-foliolatis, stipulis membranaceis laceris, foliolis petiolatis obovatis grosse
lobato-crenatis, pedunculis axillaribus folio multoties brevioribns, involucri foliolis paucis lineari-subulatis
pedicellis brevibus æquilongis, floribus 4 - 7 minimis, fru c tu oblongo 4-gono, carpellis dorso transverse
oblongis convexis. Hydrocotyle trifolia. B a n k s et Sol. 3 IS S . et Ic. T ab . X IX .
Var. /Ô. trigm rtita ; minima, hie illic rarissime setosa, foliis 3 -partitis v. 3-foliolatis, foliolis sessilibus,
carpellis brevioribus.
FIab. N o rth e rn Island. Totara-nui, Banks a n d Solander. Un d er large stones on th e hills of
Pau an u i, on th e Ruahine range, east coast, etc., Colenso.
A perfectly smooth, slender, creeping plant, very like a Hydrocotyle. Rhizomes 3 -6 inches long, leafy, and
rooting at remote intervals, sometimes giving off slender prostrate stems. Petioles filiform, 1 -2 inches long. Leaflets
thi*ee, petioled, obovate, deeply crenate and notched, 4—4 membranous. Peduncles sleuder, one-tliird as
long as tbe petiole. Umbel of four to eigbt, nearly sessile, very minute white flowers, surrounded by an involucre of
as many subulate leaves. Fruits shortly pedicellate, 1 line long.—Tbe var. /3 is certainly only a minute state of
this, with sessile leaflets, or even tripartite leaves. I t is probably a common but overlooked plant.—P l a t e XIX.
Fig. 1, base of petiole and stipules; 2, flower and involucral leaf; 3, young fm it; 4, transverse section of the
Gen. I I I . E R Y N G IUM , Tourn.
Fm c tu s subteres, obovatus, sq u am a tu s ; carpellis semiteretibus, evittatis, ejugatis, carpophoro per
to tam longitudinem adnatis. Calycis lobi foliolosi, erecti. Pe ta la abrupte emarginata, cum apice inflexo.
Umhellee in capitula densa ovoidea aggregatae. Involucri folíola exteriora ra d ía la ; in terio ra sparsa, paleacea,
in ter flores mixta.
One species alone of this extensive South European and South jVmerican genus inhabits New Zealaud: it is
also found in Tasmania, and forms a small, rigid, spinous herb, with a stout root, radical leaves, and long prostrate
stems, thrown off like scions, which bear leaves and flowers here and there, but do uot root. Flowers very minute,
dispersed in many deformed umbels, wbich are collected into dense heads, surrounded by a radiating involucre of
subulate spinous leaflets; the leaflets of the partial involucre are similar, but smaller, and scattered amongst the
heads. Calyx limb of five erect leaflets; tube covered with chaffy scales. Petals obcordate, bilobed, with a flat
iuflcxcd lamina, as loug as the petal, and lacerate at the apex. Stamens long, incurved. Alericarps semiterete,
without vittie or ribs. (Name, epvyyiov, of Dioscorides.)
1. Eryngium vesiculosum, L a b .; glaberrimum, foliis radicalibus longe petiolatis lanceolato-oblongis v.
linearibus acuminatis arg u te grosse ineequaliter spiuoso-dentatis subpinuatifidisve, surculis p rostratis