350 F LO EA ANTAECTICA. [F u eg ia , the
XLIX, CONLFERÆ, Jim.
I . TH U JA , Toum.
1. T h uja tetragona, Hook., in Lond. Joum. ofJBof. vol. iii. p. 144. t . 4.
H a b. South Chili and Strait of Magalliaens ; P o rt Pamine, Capt. King.
This species has been described, on the authority of Jlr. Bridges, as the true “ Alerse ” of Chili. Upon showing
my specimens, however, to M. Claude Gay, the celebrated Chilian traveller, he assured me that the “ Alerse ” was
a totally different plant, and not a Thuja at all; a statement the more probable, from Capt. King’s description of
the Alerse leaves, which, he says, resemble those of a Pine in colom*, but are only half an inch long ; though the
difference may arise from the young and old states of this, as of other Coniferoe, often bearing leaves of a very different
appearance. JVhen enumerating the woods in use in the Island of Chiloe, Capt. King mentions in one place (p. 281)
the “ Alerse ” and “ Cypress ” , which are thus usually considered as different plants, and says that the “ Cypress ” is
brought to that Island in “ tablones ” (or planks), seven or eight feet long, two inches thick, and nine or twelve
inches wide, as is also the “ Alerse” ; but the latter, from the facility iu which it splits, is brought in boai-ds also.
The same voyager observes (p. 183) that, though the “ Cypress ” is thought to be a different tree from the “ Alerse ”
he considers it only a variety, the wood being white, whilst that of the “ Alerse ” is deep red. Naturalists who
are aware how uncertain are the limits of the acknowledged species and varieties of European Coniferoe, will readily
appreciate the difficulty that attends the determination of tbose of an opposite hemisphere, only known to us tln*ough
insufficient specimens, vague reports, and incorrect information. Capt. King evidently believes the “ Cypress ”
and “ Alerse ” to be identical, for he affirms that the foi*mer grows commonly in the Strait of Magalhaens, in
all parts west of Cape Forward, but that there, from the poverty of the soü, the wood is of very stunted growth
(p. 283) ; and this description tallies with the specimens of Thuja tetragona in his Herbaiium.
Thuja tetragona is apparently a rai'e MageUanic plant. Capt. King says it is found on tbe north shore
of the Strait between Cape Forward and Port Gallant, but not to the eastward, except on the sides of Mount Tarn,
where it only reaches the height of three or four feet (King’s Voy. p. 131). The same author elsewhere states
that the natives make their spears of its wood (p. 568). In Hermite Island where the Thuja does not exist
Drimys Winteri is used for that purpose.
L. O R C H ID E Æ , Juss.
1. CHLOEÆA, Undl.
1. Chloræa Gaudichaudii, Brongn., in Luperrey Voy. L o t. p. 1 8 9 . t. 44. A. L in d l. Gen. et Sp.
Orchid, p. 405. Arethusa lutea, Gaud, in Ann. Sc. N a t. vol. v. p. 101, et in Freyc. Voy. Bo t. t. 1 33.
B ’Urv. in Mém. Soc. L hm . Baris, vol. iv. p. 604. “ Satyrion,” Pernetty, Voy. vol. ii. p. 54. t. 8 . f. 5.
H ab. Falkland Islands, Gaudichaud, B ’ Urville, Mr. Wright, J . B. II.
Not uncommon in moist pastures of the Falkland Islands, varying a good deal in size and in the breadth of
its leaves. I t differs from the C. alpina, Poepp,, of South Chili, by the flowers being very much smaller, and
the sepals, petals, and labellum differently formed. Both the figure and description of Brongniart, are very
good.
2 . Chloræa Hook, fil.; labello ovato-cordato obsolete trilobo breviter unguiculato marginibus
inflexis glandulis grossis elongatis stipitatis cristato axi sub-lamellato, lobis lateralibus sub-Iaceris
Falklands, etc.] FLO RA ANTARCTICA. 351
intermedio producto apice sutdilata to obtuso incrassato nudiusculo, sepaUs lateralibus linearibus ultra
medium incrassatis apice obtusis carnosis marginibus inflexis, petalis ovatis obtusis sepaHs | brevioribus,
spica triflora, scapo follato.
H a b . Strait of Magalliaens ; Elizabeth Island, C. Barwin, Esq.
PUnla 1 - l i pedalis. Folia basi longe vaginantia; lamina ovato-lanceolata, sub-reeurva. Bracteæ ovato-
lanceolatæ, _acumiiiatæ, membranaceæ, concavæ. Flores erecti, majusculi, speciosi. Sepala oblongo-lanceolata,
omnino nmia. superiore obtuso, lateralibus Hnearibus, supra medium siccitate nigrescentibus, omnia petalaque
venosa et transversim venulosa. Labellum coriaceum, recurvum, marginibus involutis, petalis oequUongum,
Columna petabs paulo bvcvior, arcuata.
A perfectly distinct and very Handsome species, confined in its habitat to that eastern portion of tbe Straits of
Magalhaens, where, as Mr. Darwin remarks, tbe Tloras of Euegia and Patagonia are blended.
2. AS ARC A, Poepp.
1. A sauca Commersonii, Lindley, Gen. et Sp. Orchid, p. 405, sub Cbloræa.
H a b . Strait ot Magalliaens, Commerson ; Ealkland Islands (Western Island ?) ; Mr. Wright, M r. Chartres.
Brongniart’s description and figure are very characteristic of the Ealkland Island specimens of this plant,
which is quite distinct from the foUowing. I have seen no Magellanic or Euegian individuals, Capt. King s Port
Famine Chloræa or Asarca being a totally different species. Mr. Wright aud ÏL . Chartres havmg gathered it in
the Western of the two Falkland Islands, and no other collectors having met with it in the Eastern, I am incHned
to consider this plant as one o fth e Fuegian species which has not spread to tlie eastern parts of the gi-onp, as is
the case with the Veronica elliptica.
2. A sauca odoratissima, Poepp., Nov. Gen.et Sp. Pla n t. Per. et Chil. vol. ii. p. 13 . 1 . 1 1 8 . Lindley,
Gen. et Sp. Orchid, p. 407.
H ab. Falkland Islands (Western Island?), M r . Wright.
Mr. Wright’s specimen of a spike of this plant, preserved in spirits, entirely accords with the figure ot Poeppig.
3 . A sauca (?) Kingii, Hook, fll.; labello breviter unguiculato oblongo obtuso indiriso integerrimo
nudo membranaceo nervis mediis rix incrassatis, sepabs laterabbus lanceolatis acuminatis apicibus simpbcibus.
petabs oblongo-obovatis obtusis sepabs labeUoque paulo brevioribus, spica 6- 8 -flora.
I I a b . Strait of MagaUiaens ; woods of P o rt Famine, Capt. King.
Herba pedaHs. Folia radicaba 6-uncialia, lanceolata, acuminata. Scapus foliatus. Spica 2-4 unc. longa.
Bracteæ ovato-lanceolatæ, acuminatæ, membranaceæ, concavæ. Flores pro genere parvi, flavi. Sepala vix a unc.
longa, membranacea, venosa, lanceolata, lateralibus basi angustioribus. Fetala sepalis paulo breviora. Labellum
sepaUs æquilonguin, omnino incHvisum. Colmnna brevissima.
Tlie short column has induced me to refer this very distinct plant to the genus Asarca, for in a dried state it
is almost impossible to determine wdiether the petals are patent or conniving.
3. CODONORCIIIS, L in d l.
1. ConoNOUciiis Lessonii, Lindi., Gen. et Sp. Orchid, p. 411. C. Poeppigii, L in d i. I. c. Calopogon
Lessonii, Brongn. in Buperrey Voy. Bo t. p. 188. t. 3 7 . f. 1. Pogonia tetrapliylla, Poepp. et Endl. Nov. Gen.
Sfc. vol.b. p. 1 0 .1. 122. Epipactis Lessonii, B ’ Urv. in Man. Soc. L in n . Paris, vol.iv. p .605. (T a b . CXXV.)
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