12 
and J. porphyroleuca, Nees. They are abruptly contracted near the 
middle‘into a dense obtuse spike, which is clothed with closely ap- _ 
pressed leaves, of a loose oblong areolation. Gemme pale green. 
. 6, Jungermannia Sullivantie, Aust.—J. caule arcte repente flexuoso 
late ceespitoso ; foliis subovatis caule parum latioribus albidis dissi-- 
tiusculis erecto-patulis vel subhorizontalibus subconcavis planisve 
basi valde angustata sessilibus ad 4-3-bifidis, sinu obtuso, lacinus 
valde acutis subdivaricatis aut subconniventibus ; perianthio in ra- 
mulo ventrali perbrevi terminali valde plicato obovato-oblongo sub 
pressura obconico primum triquetro demum tereti, ore profunde 
circa 10-fido eodemque numero plicato, laciniis subconniventibus 
serratis subintegerrimisve ; foliis involucralibus tribus majoribus 
erectis plerumque bi(-tri)-fidis margine externa plerumque unr — 
dentatis, uno ex tribus omnino integro angustiori valde obtuso — 
heteromorphio amphigastriforme.—J. bicuspidata, var. 2, Sulliv. 
‘Muse. Alleghan. n. 241. 
Hab. On decayed wood, Ohio, Sullivant ; Mlinois, L. Hall. 
Remarkable for the very narrow base of the leaf, and for the 
mostly bifid involucral leaves, with a large tooth on the outside — 
‘near the middle or towards the base. One of the three involueral Ee 
leaves (the ventral one) is usually narrower than the others, of an 
oblong shape, very obtuse and entire at the apex. Color of the — 
whole plant whitish or very pale—Resembles small forms of J. bicus- 
pidata, Linn., in the leaves, but differs very widely in the shape a | 
the perianth. J. extensa, Taylor, Syn. Hep., p. 685, differs in the 
linear-lanceolate perianth with the mouth denticulate. J. supind, 
l.c., p. 684, differs in the unequally bifid leaves, &e. 
7, Jungermannia Gillmani, Aust.—J. caule abbreviato dense cespl 
toso prostrato subarcuato e ventre valde radiculoso ex apice vald 
incrassato et decendente prolifero-continuo; foliis orbiculato-ovatis 
verticalibus subconcavis laxe textis bifidis, inferioribus sinu dent 
busque plerumque acutis, superioribus valde majoribus plus minusve 
undulatis emarginato-bilobis, lobis plerumque rotundatis nonnuD- 
quam apiculatis, sinu plerumque obtuso ; amphigastriis filiform! 
bus vel filiformi-subulatis ‘aut sepe sublanceolatis nonnullo valde 
ineequaliter et profunde (raro subsequaliter et breviter ) bifidis cauli 4 
adpressis, apice incurvo, basi in uno yel utroque lateribus unicily 
ato-appendiculata ; perianthio dorsali (adspectu terminali) sessill 
-exinvolucrato (vel raro brevipedicellato atque subinvolucrato) ver- 
ticali obovato-lageniforme antice subgibboso, apice albido valde 
angustato profunde laciniato (semper ?), ore ciliato. - 
In a cave in a cliff of Potsdam sandstone, Traine Island, _ 
Lake Superior (Michigan), Henry Gillman (1867). | 
About the size and with much the general appearance of J. inter- — 
media, Lindbg., or Scapania brevicaulis, Tayl. Color fascous- or pale 
green. Stems cespitose, 1-3 lines long, thick, upwardly much enlarg-_ 
ed, densely radiculose underneath, terminating in a turion-like de- 
scending proliferous apex ; innovations subventral. Rootlets long _ 
and intricate, fuscous, most numerous from underneath the turion 
like apex of the stem. Leaves vertical, orbicular, ovate-orbicular 
