687 
HEPATICJE. (LIVERWORTS.) 
smooth , pear-shaped, slightly compressed and repand, beneath obtusely 
keeled and gibbous near the apex. (F. dilatata, Muse. Alleghan. 
No. 267, partly.) — Bark of trees. 
4. F* saxdtilis, Lindenberg. Near the last, but separated by 
its pinnately branched and more rigid stems, more crowded lea\ts, 
much larger amphigast and shorter perianth. Trees, Massachusetts. 
5. F. seolotis, Nees. Stems procumbent , vaguely or rather 
pinnately branched; leaves half-vertical, spreading, oblique y icart 
ovate ; auricle expanded into an ovate-lanceolate lamina , amp 'e* 1 * 5 
ovate or obovate, entire or angularly toothed above, acute ) 
the ventral lobe of the involucral leaf incised; perianth unknown. 
Trees, Pennsylvania and southward. (It is questiona e i 
are not mere forms of F. dilatata.) 
14. MADOTHECA, Dumortiei. Trek Scale-Moss. 
Fructification lateral, nearly sessile. Involucral leaves , 
two-lobed. Perianth ovate, biconvex, the mouth 2-hpped, .nosed 
or entire. Pistillidia numerous. Calyptraglobose, persiste , P 
turing below the apex. Capsule short pedicelled, c ’ 
parted, the valves erect, incurved. Elaters free, * lUen “ 
both ends, with two spiral fibres. Spores large, » ther “f''^ 
Inflorescence dioecious. Antheridia in the saccate 
imbricated 2-lobed perigonial leaves. S.em- eaves S-ranhed ncu 
bous, deeply and unequally 2-lobed. Amph.gastna large ^ 
rent. (Name formed of ^ **, and capsule; the elaters 
falling away from the valves.) 0 • te 
margins reflexed ; amphigastria roun ^ roc ka, common; a 
mouth of perianth nearly entire. 
large and variable species. .l, forked branches 
2. Bf. porclla, Nees. S ,e “ 82 "^ 1 ™" |o b e oblong-ovate, ob- 
divergent; leaves distantly p'ace , ^ the stem, oblong, flat > 
tuse ; the ventral much smal er, . th cr enulate — Stones an 
sssar: rit be a—>-■ 
15. BADtlA, Nees. ^ 
Fructification terminal on short branches, or ^ ^ nelT ly te- 
cral leaves 2, deeply ^° Nd p numerous. Calyptra pear- 
rete, the mouth dilated. F 
