24 CRYPTOGAMIA ANTARCTICA. [Auckland and 
1. Leuconon Lagurus, Hook. ; caule ramoso tomentoso, foliis imbricatis ovatis concavis acuminatis 
piliferis seminerviis, theca erecta cylindracea, operculo acuminato, L. Lagurus, Hook. Musc. Exot. t. 126. 
Schwaeg. Suppl. vol. i. pt. 1. p. 191. t. 133. 
Var. 8, foliis majoribus ima basi binerviis. 
Has. Campbell’s Island ; on rocks, at an elevation of 1000 feet, barren. 
In the original specimens the leaves are generally nerved half-way up; in the present they possess two very 
short nerves ; but the variety is not otherwise distinguishable from the Antarctic American plant. 
98. LESKIA, Hedwig. 
Peristomium duplex; exterius dentes sedecim acuti; interius membrana in dentibus sedecim sequilongis fissa. 
Calyptra cuculliformis. 
1. LzskrA concinna, Hook.; caule erecto bipinnatim ramoso, foliis distichis oblongis acuminatis mar- 
ginatis apice serratis evanidinerviis stipulis conformibus duplo brevioribus, theca suberecta oblonga, operculo 
subulato. L. concinna, Hook. Muse. Brot. t. 34. Schwaeg. Suppl. t. 269. Hypopterygium, Bridel, Bryol. 
Univ. vol. ii. p. 711. 
Has. Lord Auckland's group; shady rocks on the tops of the hills, altitude 1200-1400 feet. 
This moss, which is furnished with accessory leaves (stipules) on the lower surface of the stem, belongs to the 
same group as Hypnum laricinum, Hook. (Muse. Exot. t. 35), and Z. rotulata, Hedw., they should perhaps be separated 
from Lesbia and from Hookeria, to which they are in some respects allied. Bridel’s genus Hypopterygium is so 
constructed as not to admit of these, the fertile flowers being lateral and not covered by the stipules, and the calyptra 
truly dimidiate instead of mitriform. In Pterigynandrum ciliatum, Hedw., which has the habit of this group, the 
peristome is single. 
2. LzskrA tamariscina, Hedw.; caule flabellatim ramoso, ramis subdivisis, foliis distichis oblique 
lanceolatis serrulatis evanidinerviis, stipulis rotundatis mucronatis, theca oblonga subpendula, operculo conico 
rostellato. L. tamariscina, Hedw. Sp. Muse. p. 919. t. 51. (excl. syn. Swartzii fid. Hook.). Hypoptery- 
gium, Brid. Bryol. Univ. vol. ii. p. 715. 
Has. Lord Auckland’s group; barren. (Dr. Lyall.) 
According to the remark in Hooker’s Muse. Exot. (sub. t. 35), the name Leskia tamariscina of Swartz (El. Ind. 
Oce.), should be substituted for that of Z. rotulata, Hedw. We are not aware that any subsequent author has no- 
ticed the curious tubular setiform processes in the axillee of the leaves and sometimes of the stipules in this moss. 
3. Leskia Nove-Hollandia, Schwaeg.; caule erecto simplici, foliis distichis oblongo-lanceolatis apice 
denticulatis nervo in euspidem excurrente, seta basilari elongata, theca ascendente cylindracea. L. Novæ 
Hollandiæ, Schwaeg. Suppl. vol. i. pt. 2. p. 160. t. 83. Rhizogonium, Brid. Bryol. Univ. vol. 2. p. 664. 
Haz. Lord Auckland’s group ; on the trunks of trees in the deepest and darkest recesses of the woods 5 
scarce and barren, i ; 
24. HYPNUM, Dill. 
Peristomium duplex; exterius dentes sedecim, lanceolati, reflexiles ; interius membrana carinata, in cilia totidem 
interdum pertusa ciliolis interjectis fissa. Calyptra cuculliformis.—Isothecium, Hypnum eż Stereodon, Bridel. 
Campbell 
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