spfral vessels, that I should have beea induced to suspect its affinity to Hydrangeoe, did not its other characters even
more clearly indicate its true place in the natui-al system, which is, along ivith Beidzia and Decumaria, in the class
Saxifrageoe. Batisca is another genus where the seed is of a very similar nature ; tlie testa is formed of large cells
so loosely connected that they may be separated without rupture of the walls, and though uot so lax or produced at
the apex, the funiculus expands, leaidng a little cup at the base of tbe seed when detached ; the albumen and embrvo
are the same as in Saxifrageoe. Though in these respects, and in the adherent calyx, Batiscece approach ITydrangeoe,
in others they agree with Gimnei'a, as I have indicated under that genus.
In the figure of this plant, given by Poeppig, the æstivation of the corolla is imbricate, instead of valvate.
Delessert’s ‘ leones ’ contain an excellent delineation, in ivhich, however, the plicæ of the testa ai-e omitted ; and the
stamens are quite different from those of the flowers I have examined, where they are very large and provided ivith
stout and somewhat fleshy iuflected filaments; possibly the flowers are unisexual. The pollen is globose, but
obscurely tlmee-lobed and rough on the sm-face.
Cornidia integerrima is common in Valdivia and Chiloe, where J lr. Bridges says that it is called “ Coybo,” and
forms the largest tree of the country, being from 60-120 feet in height ; it is fm-ther interesting from being the only
Chilian representative of Hydrangea.
3. SAXIFRAGA, L.
1. Saxífraga exarata, Y^ill. Bavph. vol. iii. p. 674. t. 44. BC. Frodr. vol. iv. p. 27. S. MageUanica,
Foiret, Encycl. vol. ri. p. 6 8 6 . Bon, Saxifrageæ in Trans. Soc. L in n . vol. xiii. p. 4 32. Sternberg, Rev. Sax.
p. 39. 1 .11. f. 1. JIuscaria MageUanica, Hate. Enum. Sax. p. 38.
Y^’aiietates Antarcticæ sequentes snnt :—
Var. /3, integrifolia ; foUis superioribus integris.
Y'ar. y, la xa ; foliis integris trifldisve laxius dispositis patentibus inferioribus reflexis.
Y^ax. Ô, breviscapa; dense cæspitosa, pedúnculo brevissimo, flore inter folia summa sessili.
H a b . Strait of JIagalhaens; Commerson. P o rt Famin e; Capt. King. J lo u n t Tarn, 2 0 0 0 feet;
C. B a n c in , Esq.
Specimens, numerous and good, which I have examined, enable me unhesitatingly to refer this species to the
S. exarata of Villars, as characterized by J l. Seringe in De Candolle’s Prodi-omus, and they entirely accord with
examples gathered on Jlount Olympus by Aucher-Eloy, and others from Iceland, labeUed -S'. Groenlandica (in Herb.
Hook.). In Capt. King’s coUection, is one exactly similar to S. silenijlora, Chamisso, of Arctic N. W. America.
Count Sternberg has sent the same plant as the trifid-leaved state of var. jS, from Vallesia under the name of S. leu-
cantha, Thomas ; and I am unable to distinguish the specimens specificaUy from S. uniflora, Br., of Jlclvflle Island,
which has sometimes three-flowered pedmicles. The S. cæspitosa approaches aU the above very closely, but its
leaves ai-e not so strongly nerved.
This is, in the south, as Protean a species as the S. hypnoides of the opposite hemisphere, though a much rarer
lilaut. Cajit. King’s specimens vary so materiaUy that De CandoUe’s character of S. Magellanica is inapplicable to
aU the states. The leaves are entire or trifid, very densely imbricated, or lax like those of -S'. Peruviana ; the peduncles
long or short, and one or many-flowered. The flowers are about the size of those of S. cæspitosa, a species which the
present vei-y closely resembles. It is not improbable that, eventuaUy, some of the Peruvian Saxifrages wiU merge
into this, the Andes thus seeming to afford a dii-ect communication between the northern and southern liemispheres,
of which this plant has availed itself. I t appears to be scarce in Fuegia, and to affect the mountains, having
only been gathered at a considerable elevation on the Andes, on the north side of the Strait of Magalhaens. It
is singular that a species occurring at this height, should not be also seen at lower elevations in cooler latitudes, such
:
being manifestly tlie case in the nortbem hemisphere with this species and its c o n g e n e r s . May we suppooe its
dispersion to be yet inoomplete? and that, at some fntm-o period, it wiR spread fm-ther south and fully assume
those regions the position held by some of its congeners in the northern ?
2 S a x ifh a g a bicuspidata, llc d i.S i.-, laxe cæspitosa, glaberrima, caulibus decumbentibus gracilibus
parce ramosis foliosis, foliis auguste liueari-spathulatis uninerviis apice bicuspidatis margimbus cartüagmeis,
pedmiculo axillai-i nudo imifloro, calycis lobis apice emarginato-bifidis, stammibus 5, calyce semisuper .
(T a b . XCYII.)
H ab . South p a rt of Tierra del Fuego ; C. B a rm u , Esq. Hermite Fsland, Cape Ho rn ; on th e mountains,
1 ,2 0 0 fe e t; / .D . 7/.
Laxe cæspitosa, siccitate rufo-fusca et flaccida, apicibus ramulorum foliisque junioribus viridibus, tota glaberrima.
CauUs pollicares, graciles. FolU U - l une. longa, anguste lineari-spathidata, medio tenmter iminem, apice bieus-
pidato, marginibus anguste cartilagineis. Fedunctdi axillares, solitarii, nudi, folio snbæquüougi, post anthesin
elonrati. Calgx basi coniciis, profunde quinquelobus, lobis ad apices emarginato-bifidis, segmentis acutis. F d a la .
Stamim 6. Capsula semisupera, compressa, carpeUis supra medium hberis deinde divancatis, rima yen rail smsum
spectante deliiseentibiis, stigmatibus simphcibus sessilibus. Semiua pauca, testa brunnea subeonaeea; albumine ear-
noso ; embryoue tereti.
A verv sino-nlar species, hitherto detected only on the momitains at the extreme south pai-t of the American
continent. It exhibits httle resemblanee to its congeners, except in having somewhat of the habit of A opposiüfilm.
which is highly variable in the number of stamens. To the pentandrous S. mnmcuUfoba, Hook., o fth e Rocky
Mountains, the present has but shght specific affinity.
PL.ATE XCYII. Fig. 1, Branch and leaves; / y . 2, an old flower; / y . 3, stamen; / y . 4, ripe capsule ; > . 6,
seed :—all magnified.
6 . C H RYSO S PL EN IU JL Tourn.
1 Chbysospleniüm maa-anthum. Hook.; glaberrimum, caule procumbente basi repente, foliis opi«-
sitis petiolatis ovato-cordatis obtusis grosse sinuato-ereuatis iu petiolum attenuatis, peduneuhs terminahbus
bracteatis ti-ifloris, floribus cU-trigynis intermedio sessili, ovulis placentis parietalibus afflxis. C. macrantlium.
Hook, in Lond. Journ. o f Bot. vol. i. p. 458. 1 .16. C. elevatum. B ank s et Sol. in M m . Ba n k s, cum reone.
H ab . Strait of Magalliaens ; Eagle Bay, P o rt Famine, Capt. King. Good Success Bay, B ank s and Solander.
A very handsome species and much the largest-flowered of the genns. The seeds are attached to parietal
placentæ, having their origin upon anastomosing veins, which ultimately lead to the divei-gmg styles.
2. Chkysosplentom V a ld a ie tm , Hook.; glaberrimum, eaule repente, fohis oppositis petiolatis ob-
longo-rotuiidatis obscure sinuatis hasi subtruncatis. G .K M m m m , Hook, in Lond. Jottrn. o f Bot. m i .i .
p. 459. t . l 7 .
I-Lab. Hermite Island, Cape Horn ; in open places near th e sea; J . E . H.
Aly specimens are extremely imperfect, though suffleieiit to identify the species with that from Valdivia, which
does lo t appear to have been found in any intemiechate locality. The present is distinguished from C. maerantUum
by its more rounded and scarcely sinuated leaves, somewhat trimcate at the base. Some of Mr. Bridges’ specimens
have leaves fully inches long.
7. DONATIAy Eorst.
4. H onatia fascicularis, Forst.; Char. Gen. t. D. Jlagellaiiicaj BamTc. Illu s t. vol. i. p. 217. t. 51.
3 0