698 (98) HEPATIC. (LIVERWORTS.) 
on the back, the keels crested. (F. dilatata, Muse. Alleghan. No. 267, partly.) — 
Rocks and trees; common 
7. EF. Eboracénsis, Lehm. Stems creeping, Bischebitey branched ; 
stem-leaves cae disposed eo ramcal imbricated), round-ovate ; amphigastri: 
ovate, a little wider than the stem ; perianth smooth, pearishaped; slightly. com- 
ressed and sere beneath chdaaely keeled and gibbous near the apex. (F. 
microscypha, leviscypha, & nana, Taylor.) — Bark of trees ; common 
Saxatilis, Lindenberg. Near the last, but separated = its pinnate- 
ly Deachehied and more rigid stems, more crowded leaves, much larger amphigas- 
tria, and shorter perianth. — Trees, Massachusetts. 
9. F. plama, Sulliv. (in Mem. Amer. Acad. 1. c.) Resembles No. 
7, but is a somewhat larger species; the pr ieee small, close to the stem, 
and covered by the plane rotund acutely bifid amphigastria, which are thrice 
e width of the stem; periant auaeeaet or nearly obovate, plane above, 
carinate beneath. — Rocks ; Hast Tennessee. 
10. F. Otis, Nees. Not untike No. 8; leaves semi-vertical, subsquar- 
rose, ie shiedate; the atiricle ‘usually expanded into a lanceolate lamina; 
perianth un Grows in spongy masses on decayed logs, stumps, &c. ; 
common. 
30. LEJEUNIA, Libert. (Tab. VIL) 
Fructification lateral or terinitial, on proper branches. Involucral leaves 2, 
deeply 2-lobed. Perianth oval or amie terete or angular, winged or ciliate- 
crested on the angles, the mouth 3-4-lobed ; pistillidium slug: Calyptra obo- 
vate, aa rupturing below the apex. Gaeit globose, membranaceous, 
pale, 4-cleft to the middle. laters persistent, adherent to the tips of the valves, 
erect, fia upper end mime seks with a single spiral fibre. Spores large, 
irregular. Infl icecious. ines heridis, vy Tha er branches, lodged in 
tl tricose k f imbricated 2-lol es. Amphigastria present. 
(Named for Lejeune, a French botanist. ) 
* Amphigastria entire. 
peata, Schweinitz. Stems (7//-10” long) procumbent, some- 
what Po ete branched; leaves (whitish-green, of a firm texture) with the 
iri lobe Toand-obovate and deflexed, the lower oblong, quadrate ; amphi- 
gas ts) » approximate ; perianth lateral, sessile, obovate, obtusely 
keeled on the bac 2-kecled beneath, the margin subcompressed. — Alleghany 
Mountains. (Tab. VIII.) 
2. L. longiflora, Taylt Closely resembles the last species, but has 
1 d a 5-winged perianth.— On trees, 
Southern Ohio to Florida. 
3. L. calyculata, Tayl. Stems me branched ; leaves patent- 
recurved, asi obtuse, subdeflexed; the lower lobe i ‘pivdlats, lanceolate ; 
amphi nd; perianth ry, ates pleioomtr miei 4-winged, 
eghany 
the wings entire; involucral leayes narrow, acute. — On lichens 
Mountains. 
