10 CRYPTOGAMIA ANTARCTICA. [Auckland and 
5, cell of S. macrophyllum with no spiral filament and many large pores; 6, transverse section of the cells of a leaf 
of 8. cymbifolium :—all highly magnified. 
1. Spmacnum compactum, Brid., caule erecto ramoso, ramis dense confertis, folis imbricatis concavis 
ovato-oblongis obtusis apice denticulatis, theca ovato-rotundata, pseudopodio brevi. S. compactum, Brid. 
Bryol. Univ. vol. i. p. 16. 
Var.B, rigidum ; folis subrigidis convolutis superne attenuatis apice patulis, pseudopodio gracili sub- 
elongato. Nees et Hornsch. Bryol. Germ. vol. i. p. 14. t. 2. f. 5*. 
Var. y, ovatum ; folis patentibus ovatis subacutis. 
Has. Campbell’s Island; in bogs near the sea, both the varieties growing together. 
The variety y. ovatum may possibly be a distinct species, though we have not ventured to separate it speci- 
fically ; it differs from the usual state of the plant in the ovate, not oblong, leaves, which are more acute at the 
apex, with somewhat cartilaginous margins, Dr. Lyall’s specimens, though fragments, evidently belong to a much 
larger moss than S. eymbifolium, Dill., with more tumid branches. Of this species Bridel remarks, “a S. cymbi- 
folio, foliis semper apice denticulatis, i.e. preemorsis, ut et toto habitu distinctissimum.” The oblong leaves of var. 8 
and the absence of the spiral fibres in the outer cells of the ramuli also appear constant peculiarities. 
In this, as in some other species, it is not uncommon to observe the spiral fibres of the lower cells of the leaf 
disposed in a double or triple helix. The interposed circular discs are readily seen to be pores, from their strong 
similarity to the distinct apertures found on the cells of the ramulus. The outer cells of the branches seem analo- 
gous to the ordinary cellular tissue of the leaves, and the inner to their intercellular tubes ; whence the true position 
of the latter on the upper surface of the leaf may be inferred : whilst, on the other hand, the concavity of the foliage 
would lead to the supposition of their occupying the opposite one. 
3. LEPTOSTOMUM, Br. 
Peristomium. simplex e thecæ membrana interiore ortum, annulare, suberectum, indivisum v. rarius subdenticula- 
tum. Calyptra glabra, dimidiata. Theca equalis v. rarius gibbosa, oblonga, in apophysin spuriam obconicam attenuata. 
1. Leprostomum gracile, Br. ; caule ceespitoso subramoso, foliis oblongis subacutis piliferis inferioribus 
ovato-lanceolatis, theca pendula oblongo-cylindracea, operculo hemispherico. L. gracile, Brown in Trans. 
Linn. Soc. vol. x. p. 821. Schwaeg. Suppl. vol. ii. pt. 1. p. 1% t. 104. Gymnostomum gracile, Hook. Muse. 
Exot. t. 22. 
Haz. Campbell’s Island; on exposed rocks, altitude 1200 feet, barren. 
It is not yet proved whether the Z. gracile and LL. inclinans be really distinct. Our specimens agree with the 
former, in having a strong excurrent nerve ; they differ from it in the stems being densely matted with radicles, and 
from L. inclinans in the leaves not being contorted when dry and their margins not revolute. There is a new and 
very well marked species in the Hookerian Herbarium, Z. Bridgesii, Wils., MS., from Conception and Colchagua in 
Chili, in which the leaves are piliferous, with the nerve evanescent below the apex, the seta short, and the theca, 
instead of being pyriform, is widest at the base. * L 270 P" Hure تمس که رسمه‎ AA. E 30$,) 
4. SPLACHNUM, Z. 
Peristomium simplex. Dentes sedecim, per paria coadunati v. approximati, longitudinaliter exarati, tandem 
reflexi et plerumque thecæ extus appressi. Calyptra campanulata, basi subintegra v. fissa, theca brevior. 0 
z»qualis, apophysata, exannulata. 
eso ci 
—— 3$ 
Campbell 4 
It is wit 
‘Bryologia E 
here enumerat 
these adopted. 
allied to the 8 
very dissimilar 
In one of Bru 
pendiculate at 
base, but when 
rated and some 
which genus the 
In all the : 
ricum, ampullac 
columella. Ea 
branous tubes, 
all the species a 
Bruch and Schin 
The souther 
1, Sprach 
tegerrimis undi 
angusta, opercu 
Var. B, mi 
Has, Cam 
Caules laxe: 
citate erispa, la 
capituliformes a 
in apophysin th 
tudinali ad apie 
Operculum parva 
non visa, 
Nearly allie 
more crisped whe 
the two lateral of 
in this species ap 
each double toot 
Pur LY 
approximated iy 
rules nifi 
2. Su 
germmis, thee 
Erot, t. 167, 
Var. 8, 
