cerudhoides, Br., as having this structure, and it is a singular circumstance that these two plants, which, through their bilocular anthers and hypogynous filaments, completely unite the Ericea of the northern hemisphere with their southern representatives in Australia, the Epacridea:, are both natives of very humid climates and densely wooded regions, and not of such localities as the majority of cither Order (but especially the Epacridea) affect.
The subscandent habit of L. Amerieanus is very peculiar; it grows on the trunks of trees, and often creeps up them for some feet. This is also the case with some other distichous-leaved Antarctic plants, as Callixene, and Lusuriaga, and with the Prionotes and Decaspora of Tasmania.
XXXI. GENTIANEÆ, Juss.
1. GENTIANA, L.
1. Gentiana Magellanica, Gaud, in Ami. So. Nat. vol. v. p. 89, et in Freyc. Toy. Bot. p. 134. D'Urvitte, in Mem. Soc. Linn. Paris, vol. iv. p. 607. Grisebach, Gen. et Sp. Gent. p. 237, et in DC. Prodr. vol. ix. p. 99.
Hab. Strait of Magalhaens ; Port Famine, Copt. King ; south part of Fuegia, C. Darivin, Esq. Falkland Islands, Gaudichaud, D'Urvitte, Mr. Wright, J. D. H.
2. Gentiana Patagonica, Grisebach, Gen. et Sp. Gent. p. 237, et in DC. Prodr. vol. ix. p. 99. (Tab. CXV. sub. nomine G. Magellanica).
Var. /3, Darwinii, Griseb. I. c.
Hab. Strait of Magalhaens ; Elizabeth Island, C. Darwin, Esq.
I can hardly consider Mr. Darwin's specimens to be even a variety of the plant collected by Capt. King at Cape Fahweather (not Port Jamaica, vid. Griseb.), on the coast of Patagonia.
Except the rather broader and more obtuse segments of the less deeply divided calyx, there is nothing to distinguish this from the Tasmanian and New Zealand G. montana, Forst.
Plate CXV. (under the name of G. Magellanica). Fig. 1, flower; fig. 2, stamen; fig. 3, germen; fig. 4, ripe fruit ; fig. 5, seed ; fig. 6, the same with the testa removed : — all magnified.
3. Gentiana prostrata, Haenk. in Jacq. Coll. vol. ii. p. 66. 1. 17. f. 2. Griseb. Gen. elSp. Gent. p. 271, et in DC. Prodr. vol. ix. p. 106.
Hab. Strait of Magalhaens ; Cape Negro, C. Darwin, Esq.
For the widely extended geographical distribution of this little species, see Part 1. p. 56. of the present work.
XXXII. CONVOLVULACEÆ, Juss.
1. CALYSTEGIA, Br.
1. Calystegia sepium, Br., Prodr. p. 483. Engl. Bot. t. 313. C/ioisy in DC. Prodr. vol. ix. p. 433.
Hab. Chonos Archipelago, C. Darwin, Esq.
This plant, the common English Bind-weed, is universally diffused throughout the temperate regions, both of the northern and southern hemispheres. In the latter it inhabits New Holland, New Zealand, and the Island of Java, according to M. Choisy, in DC. Prodr. 1. c.
