692 
HEPATICJE. (LIVERWORTS.) 
ingly branched; leaves ovate-triangular, spreading, loose, pale, 2- 
toothed; the teeth oblique, acute, with a crescent-like sinus ; involu- 
cral leaves acutely 2-cleft and somewhat toothed. — Moist places, 
among Mosses, &c. 
25. SPHAGNICflETIS, Nees. Peat Scale-Moss. 
Fructification terminal, upon a short proper branch arising from 
the ventral side of the stem. Involucral leaves small, few, incised. 
Perianth ascending, terete, 3-angled at the apex ; the mouth den¬ 
ticulate. Calyptra membranaceous. Capsule oblong, 4-valved. 
Elaters with two spiral fibres. Antheridia unknown. Stem- 
leaves succubous, orbicular. Gemmae collected in heads upon the 
attenuated tips of the branches. Amphigastria none, except upon 
the gemmiferous branches. Stems furnished with runner-like 
rootlets. (Name composed of Peat-Moss, and koltis , <* 
little bed; from the appearance and growth.) 
1. S. communis, Nees. Stems creeping; leaves elliptical- 
orbicular, entire, ascending. (I. Sphagni, Auct.) —Upon moss and 
decayed wood. 
26. JUNGERUiANNIA, L. Scale-Moss. 
Fructification terminal. Involucral leaves free, like or unlike 
the stem-leaves. Perianth membranaceous, tubular, plaited-den- 
ticulate at the apex; the mouth 3 - 6-cleft. Calyptra included, 
rarely projecting. Capsule 4-valved. Elaters with two spiral 
fibres. Antheridia in the base of inflated perigonial leaves. Stem- 
leaves succubous. Amphigastria present or absent. (Dedicated 
to Jungermann, a German botanist of the 17th century.) 
* Leaves and amphigastria alike , 2 - 4 -parted. 
1. J. tricboplftylla. L. Stems flaccid, branched ; leaves an 
amphigastria 3-4-par ted ; the divisions straight , spreading, bristle- 
form, each composed of a single row of tubular cells; fruit-bearing 
branch lengthened ; perianth nearly cylindrical, contracted and tooth¬ 
ed at the mouth. — Decayed wood, &c. A minute, pale-colore 
species. 
2. JT. setacea, Weber. Leaves and amphigastria 2-3 -cleft, 
the divisions incurved , each composed of two rows of cells ; fruit-bear 
ing branch short; mouth of perianth ciliate.— On the ground, &£• 
Smaller than No. 1, brownish-colored. 
* * Leaves 2-cleft, or ( ( from Nos. 7-11) 2 -6-cleft: amphigastria none, 
except in Nos. 7 and 8. 
