that grasses increase in niunber. proportionally to other natural families, in proceeding from the tropical to the
polar regions, though it is on the Savannahs of the warmer temperate zones that they form the most conspicuous
traits in the landscape.
Again, New Zealand, Tasmania, and California must be considered the regions of the Pines, if the number of
species in a given area were to detemine the point ; but all the Coniferoe now growing in those three countries,
amounting though they do to no less than forty kinds, would not, if planted together, cover tbe surface that the
Scotch Fir does in Europe. The region of the pines is in the latitudes approaching the tropics ; these trees dimmish,
in number of species and in the proportion they bear to other natiu-al orders, when i^roceeding northwards from thence,
and actually cease immediately beyond that poiut, where, from the abimdance of one species, they appeal* to be most
fully developed. I t is interesting to every one to know what vegetable production gives a country the peiJidiar featm-es
of its landscape ; but attractive or wonderful though those featm-es be, they afford no clue to the botamst, who would
understand, not what the vegetation of a country appears to be, but what it really is.
XYII. PORTULACEÆ, Juss.
1. MONTI A, L.
I . fo n ta n a , L ., BC. Prodr. vol. iü. p. 362. Flora Antarct. pt. 1. p. 13. M. lineai'ifolia, D Urv.
■in Mém. Soc. L in n . Paris, vol. iv. p. 619. M. lamprosperma, Cliamisso-in Linnæa, vol. vi. p. 565. t. 7.
H a b . Falkland Islands ; D Urville, J . B . II. Kerguelen’s Land ; J . B . II.
In the first Part of this work I described the seeds of the varieties of Montia from these two localities, and
expressed my opinion that the genns contains but one species, the seeds of wliich are variable in size aud in the
surface of the testa. In the Kerguelen’s Land individuals they also vary much in shape.
XVIIL CRASSULACEÆ, Juss.
1. BULLIARHA, BC.
1. B ülliarda moschata, D’Urv. in Mém. Soc. L in n . Paris, vol. iv. p. 618. Gaud, in Freyc. Voy. Bot.
p. 138. F l. Antarct. p i . 1. B. MageUanica, DU. P/ìZ/oì». n. 49. Tülæa moschata, DU.P?w?r.
vol. iii. p. 382. Hooh. Icon. Fia n t, t. 535. Crassula moschata, Forst. Act. Goett. 9. p. 26.
H a b . South Chili and Fuegia, from Cape Tres Montes to Cape Ho rn ; B ank s and Solander, Forster,
Capt. King, C. Barwin, Esq., J . B. U. Falkland Islands, Gaudichaud, D Urville, M r. Wright, J . B . 11.
Kerguelen’s Land, J . B . II.
Invariably a sea-side plant, very abundant on rocky beaches where fresh water enters the sea.
XIX. GROSSULARIEÆ, BC.
1. RIBES, I .
1 . Kib'e.'s, Magellaiiicum, Poir.; inerme, petiolis pedunculis ramisque junioribus puberulis, foliis petiolatis
ovatis v. late ovato-rotundatis basi truncatis v. cordatis trüobis grosse duplicato-serratis junioribus
glanduloso-punctatis senioribus impunctatis supra glabriuscuhs subtus nervis puberulis, racemis multifloris
florentibus jienduhs fructiferis elongatis sæpe suberectis, pedicellis brevibus, bracteis ligulatis floribus æquii
\
longis, calyce late campanulato lobis obtusis, petabs miuimis apice reflexis, stylo bicruri. R. Magellanicum,
Foiret, Enegcl. Snppl. vol. ii. p. 856. EC . Prodr. vol. iii. p. 482.
H a b. Strait of MagaUiaens ; Commerson. P o rt Famine, Capt. King. Soutli part of Tierra del Fuego,
a Darwin, Esq. Cape Horn, Mr. Eights.
A strictly Fuegian species, apparently not met ivith to the northward of the Strait of Magalhaens. On the
coast of Chili it is replaced hy several others, and on the high mountains of Colombia a very similar plant grows,
distingnishable however, at first sight, by its less toothed and crenated leaves and subulate bracteæ. The berries
of the present have a very agreeable flavour, and may be used for torts. See. Another similar, but I think different
plant, was collected hy Copt. King in Chiloe ; his specimens are, however, too imperfect for determination.
XX. SAXIFRAGEÆ, Juss.
1. ESCiALLONIA, Mutis.
1. E scallonia serrata. S m i th ,/ c « . vol. ii. t. 31. EC. Prodr. vol.iv. p. 3. Ilo o l. Ic. Pla n t.
t. 54 0. Hmnl. et -Jacq. Vog. au Pole Sud, Pla n t. Phan. Bicot. 1 .14. P . Stereoxylon serratum, Poir. Enegcl.
vol. vii. p. 435. Celastrus venustus. B ank s et Sol. M S S . a m icone in Mus. Banks.
H a b . Euegia and th e Strait of Magalliaens ; Commerson, Banks and Solander, and all succeeding
voyagers.
The most southern species of a genus peculiar to the American continent. I t is found as far as Cape Horn,
where, along witli Veronica elliptica and Berheris ilicifoUa, it inhabits the skirts of forests near the sea.
2. E scallonia macrantlia, Hook, et Arn. B o t. Misceli, v. iii. p. 341.
H a b. South Clifli ; Clionos Archipelago ; C. Barwin, Esq.
A very distinct species, wliich may be recognized hy the great size of the flowers, and by the large obtusely
crenato-sen-ate leaves. It is also a Valdiviaii plant, though confined to that portion of Chili which is near to Chiloe.
2. COESIDLA, B . e t P .
1. CoitNiDiA integerrima. Hook, et Arn. in Bot. Miscell. vol. iii. p. 344. Poeppig et Endlicher, Xoo.
Gen. e tS p . P la n t. Am. p. 10. 1 .17. Belessert, leones Selectee, vol.iv. p. 46. t. 79. Hydrangea scandens,
Poepip. in EG. P ro ir . vol. iv. p. 6 6 6 .
H a e . South Cliib; Chonos Archipelago ; C. Barwin, Esq.
The fruit of Condiia integerrima is a small coriaceous three-celled capsule, very similar to that of Hgdmngen.
The carpels separate from one another, and ai-e loosely invested by the tubo of the calyx, bearmg a placenta on each
infiexed margin. The seeds ai'e numerous, ascending, very small and liiiear-laiiceolate, covered with a loose testa,
which expands at the base into an irrcgailarly cnp-shaped funiculus, and is prolonged also at the other extremity
beyond the albumen, its sm-face is marked by parallel, sometimes anastomosing nerves or folds of the investing
membrane, which include each a solitary spiral vessel. The albumen is fleshy. Embryo axile, cyliiidi'ical, with a
stont large radicle and two small cotyledons ; it is likewise of a curiously reticidated structure : these characters
of the testa and of the substance of the albumen also exist in Hgimngea vestita, an East Indian plant. There
arc some other genera which agree with the present in the form and structme of the seed and loose testa, as
BhiladdpMs, Beidz'ia, aud Deaumr'ia. In all, the investing membrane of the seed is highly reticulated, or rather
cellular, that of Philadelfhtts tomeiitosm, in particular, so much resembling Coriiidia in all hut the absence of the