20 
bilobis, lobis utroque convexis (margine subincurvis), ventrali dim- 
idio minore late triangulari-ovato obtuso margine interiori cauli 
adnato, toro radicellarum magno elongato subconico obtuso, reti e 
cellulis minutis subrotundo-hexangularibus conformibus supra vix 
convexis formato, foliis ramulinis minoribus basi magis inflatis lo- 
bulo ratione majore, involucralibus parvis, lobis equalibus suboval- 
ibus, perianthio e basi obconica oblongo compresso apice subtrun- 
cato-rotundo e cellulis minutis hexangularibus confertis opacis for- 
mato, capsula oblonga, sporis magnis fuscis minute papillosis, gran- 
ulis 1—4 magnis continentibus; spicula masculina 1—4 lineas 
longa arcte foliata, foliis perigonialibus 10—40 paribus, lobis sequa- 
libus valde inflatis, 
On trees ; California, Bolander. Salem, Oregon, Hail. 
Stems and perianth shorter than in R. obconica, Sulliv.; leaves of 
about the same size but of a Cifferent shape and texture; inflores- 
cence different, &e. 
11. Lejeunia (Omphalanthus?) Mohrii, n. s7.—Plantz parve, sor- 
dido- vel fusco-virides; caule 4—3 unciali tenui subsimplici, foliis 
subcontiguis oblique ovatis obtusis integerrimis (leniter repandisve) 
opacis valde chlorophyllosis patentissimis et subdecurvis (ut mar- 
gine ventrali cum caule angulus rectus vel acutiusculus formetur) 
lobo parvo inflato apice unidentato, reti pro genere minuto obscuro, 
amphigastriis orbiculatis integris parvis (caule vix duplo latioribus) 
planis distantibus: fructu : 
Mobile, Alabama, Dr. Chas. Mohr. (1874). 
A small species, scarcely as large as Lejeunia Sullivantice, Aust., 
and having much the appearance of a Rudula. Readily distin- — 
guished by the widely spreading or somewhat decurved leaves, of a 
small uniform opaque areolation, and by the small round entire am- 
phigastria. 
Lejeunia Jooriana, ». sy.—Plante minute pallido-virides; caule 
repente parce diviso laxe foliato,. foliis ovatis obtusis planiusculis 
subpatentibus laxis, lobulo mediocri inflato unidentato, reti mediocri 
cellulis ovali-rotundis uniformibus supra convexis formato, perianthio 
minuto subobovato haud compresso apice leniter quinquangulato 
_ceteroquin levi: ampbigastriis nullis. 
On reeds; Louisiana, Dr. Joor. - 
Differs from LZ. echinata, Tayl., in thelarger, more lax, less convex, 
scarcely papillose leaves, much less angled perianth, ete. 
12. Frullania Hallii, ». sp.—Monoica, tetragyna; caule prostrato 
nordinate ramoso apice sepe.erecto flagellifero-attenuato defoliato 
atque amphigastriis crebris squarrosis instructo, ramis fructiferis 
brevibus clavatis adscendentibus, foliis parvis subdistantibus sub- 
imbricatisve oblique ovato-rotundis valde convexis apice incurvis, 
auricula magna vel majuscula galeiformi ovali-rotunda cauli contigua, 
lobulo interjecto dentiformi minuto, amphigastriis caule vix latior, 
ibus obovato-quadratis breviter bilobis utrinque subunidentatis- 
lobis subdivaricatis obtusiusculis, perianthio semi-exserto late obo- 
vato compressiusculo dorso versus. apicem bi- ventre quadrinervoso 
unicarinato, involueri foliis uno alterove cum amphigastriis alte con- 
natis repando-subdentatis, lobis fere equalibus oblongis obtusis, ven- 
trali extrorsum usque versus apicem unidentato, am higastrio interi- 
ori late ovato rotundove apice integro nonnullove leniter emargin- 
