Herbarium), as also the description (in xEtheog. p. 80), prove it to be identical with 0. Ludwigii, Schwaegr., which therefore ought to have been named O. coarctatum.
Plate CLII. Fig. II. — 1, plant of the natural size ; 2 and 3, leaves ; 4, seta, theca, &c; 5, calyptra ; 6, theca; 7, teeth of peristome : — magnified.
S. Orthotrichum crispum, Hedw.; Muse. Frond, vol. ii. t. 35. Hook, et Tayl. Muse. Brit. p. 133. t. xxi. BrucA et ScAimper, Bryol. Europ. fasc. 2-3. p. 23. t. 12.
Hab. Hermite Island, Cape Horn ; on rocks and branches of trees near the sea, always barren.
This species often bears, at Hermite Island, jointed conferva-like gemm* among the young leaves, 4. Orthotrichum Magellanicum, Mont., in Yoy. au Pole Sud, Bot. Crypt, p. 290. t. 20. f. 2.
Hab. Strait of Magalhaens ; 31. Jaeqninot.
11. MACEOMITRIUM, Br id.
1. Macroiiitrium longipes, Schwaegr.; Suppl. II. 2. p. 131.? Orthotrichum longipes, Hook. Muse. Fxof. t. 24. Var. ranris gracilioribus elongatis, foliis luridis erectis lineari-oblongis plicato-carinatis nervo excurrente.
Hab. Hermite Island, Cape Horn, Mr. Davis; barren.
Perhaps a distinct species ; but though different in aspect, obvious characters are wanting to distinguish it from the Hookerian specimens.
12. WEISSIA, Hedw.
1. Weissia crispula, Ludw.; vid. Part 1. p. 127. t. Iviii. f. ii. Dicranum interruptum, Brid. Bryol. Univ. vol. i. p. 438. Bryum pilosum interrnptum, Dill. Muse. p. 376. t. 47. f. 38.
Hab. Hermite Island, Cape Horn; rocks on Kater's Peak, alt. 1,000-1700 feet, growing in tufts.
Apparently identical with the European plant, and also found in Campbell's Island.
2. Weissia contecta, Hook.fil. et Wils.; vid. Part. 1. p. 127. t. Ixiii. f. iii.
Hab. Kerguelen's Land ; barren, on rocks.
Also a native of Campbell's Island.
3. Weissia acuta, Hedw.; Muse. Frond, vol. iii. t. 35. Hook, et Tayl. Muse. Brit. p. 87. t. 14.
Var. /3. theca subrotimda, seta breviore arcuata, peristomii dentibus latioribus cribroso-pertusis.
Hab. Falkland Islands ; at Port Louis, barren. Hermite Island, Cape Horn; var. /3. on wet rocks in and near water-courses, in St. Martin's Cove ; wet sandy banks on Mount Foster.
We have no specimen of Weissia acuta /3., AVahlenb. (Fl. Lapp.), which seems to differ, according to the description very little from our moss. The capsule of ours is turbinate when dry, with a very wide mouth. The seta is sometimes equally short in British specimens.
4. Weissia stricta, Hook. fil. et Wils.; caule rarnoso, foliis subfalcatis lanceolato-setaceis rigidis canaliculars integerrimis crassinerviis nervo longe excurrente, theca subrotunda, operculo rostrato. (Tab. CLII. fig. IV.)
