ia, the 
of rocks, 
found on 
the British 
le Sud, Bo. 
o-patentibus 
ntia, 5-faria, 
Jata, areolis 
] texture of 
y tents 
I, operculo 
ved in ale 
Falklands, etc.) CRYPTOGAMIA ANTARCTICA. 107 
Caules cespitosi, 2-3 lin. longi, ramis brevibus apice coma incrassatis. Folia densa, e basi lineari longissime 
attenuata, subflexuosa, carinata, integerrima, viridia, nervo conspicuo sub apicem evanido, cellulis elongatis : peri- 
cheetialia longiora, similia, antheridiis in axillis eorum positis, paraphysibus paulo longioribus immixtis. Seta 4-5 
lin. longa, gracilis, rubra, siccitate tortilis. Vaginula angusta, oblonga. Theca lanceolato-oblonga, inclinata, sub- 
inde erecta, ore angustato, demum rufescens, siccitate substriata. Sporangium internum paulo brevius. Annulus 
obscurus, operculo adherens. Operculum basi conicum, rostello brevi obliquo, interdum conicum, acuminatum, 
rectum. Peristomium breve; dentes externi hyalini, transverse trabeculati, siccitate inflexi ; interni processus 16 
longiores, carinati, linea media notati, membrana basilari connexi, siccitate erecti, subincurvi. Spore minime, lutee. 
Calyptra latere fissa, pallida, apice brunnea. 
This differs from Orthodontium lineare, Schwaegr. (Suppl. t. 188), in the oblong suberect capsule, and in the 
absence of terminal male flowers, thus deviating from the generie character proposed by Schwaegrichen. In the 
inflorescence it agrees with the British Orthodontium gracile, Bruch and Schimper, but differs in the form of the 
capsule and the stronger nerve of the leaf. 
Pate CLIII. Fig. V.—1, plant of the natural size; 2, leaf; 3 and 4, thecee; 5, peristome :—all magnified. 
23. BRYUM, Dill. 
1. Bryum nutans, Schreb.; Hook. et Tayl. Muse. Brit. p. 203. t. 99. Fl. Antarct. pt. 1. p. 184. 
Has. Falkland Islands; from the sea to the hill-tops, varying in size and habit. Hermite Island, 
Cape Horn ; in clefts of rocks in the woods, and on hard soil by streams, 
A common Antarctic moss; also a native of Lord Auckland’s group. 
2. Brxux lacustre, Brid.; Bruch et Schimp. Bryol. Europ. Monogr. p. 16. t. 2. 
Haz. Hermite Island; on sandy banks close to the brushwood a little above high water mark, 
St. Joachim’s Bay. 
3. Bryum binum, Schreb.; Bruch et Schimp. l. e. p. 50. t. 21. 
Has. Kerguelen's Land (barren). 
4. Bryum Billardieri, Schwaegr.; Suppl. 1.vol.ii. p. 115. t. 76 (non Bruch et Schimp. l. c. p. 58. t. 26.) 
Has. Falkland Islands; on clay-slate rocks at Port Louis, rare and barren. 
The European specimens, described by Bruch and Schimper, belong to B. Canariense, Schwaegr. (Suppl. t.214 4); 
we do not however contend for that moss being a really distinct species. 
5. Bryum argenteum, Linn.; Hook. et Tayl. Muse. Brit. p.199.t.29. Bruch et Schimp. l.c. p.18. t.41. 
Var. foliis arcte imbricatis angustioribus acuminatis. 
Has. Falkland Islands; in sandy places near the sea, common. Cockburn Island, (barren). 
This variety is connected with the ordinary states of the species by intermediate forms which Mathews gathered 
at Casapi (Peru). The Hookerian Herbarium contains a Bryum, collected by Humboldt in South America, with 
muticous convolute leaves, allied to this, but probably a distinct species. 
. 6, Bryum cespititium, Linn.; Hook.et Tayl. Muse. Brit. p.201.t. 29. Bruch et Schimp.t.c.p.70, t. 34. 
Var. 8. gracilescens, Bruch et Schimp. 
Has. Strait of Magalhaens, M. Jacquinot. Falkland Islands, with unripe fruit. Var. 8. Falkland 
Islands (barren). 
F 
