jungermannia H Sp. 
Plants autoicous,"branched,usually under / cm long 
minute. 
Leaves smallest below,enlarging upaards.Smallest .05m long,usually 
broader than long,broadly ovate,broadest at or below the middle. Grad¬ 
ually coining to an obtuse apex. Concave, somewhat obliquely inserted 
below,but nearly transverse near the perianth,as are also the male 
bracts. Usually the leaves are subsecund above,nach as in naeVicar's 
plate of j atrovirens. The leaves clasping stem,but not at all document. 
Cells irregular above averaging 19u,varying from 13 to 23u. somewhat 
thick walled from contents clinging to walls. Limite trigones present. 
Basal cells in middle up to IS by 30u,but not much larger than apical at 
margins. Surface vcrruculose. 
I mrianAhs Rhizoids numerous on stems and innovations,colourless. 
Perianth usually lateral by innovations,from horizontal to suberect, 
'6-oa^ ventricose abbve, 1.2mm long by .751919 wide. Broadest at or below middle, 
plicate from there above,gradually contracted to a narrow mouth .Tipqi 
wide,the mouth with numerous erenulations,short,to 2 cells long. 
pale bracts some distance below perianths,deeply concave,and transver¬ 
sely inserted, nracts below perianth up to 1.1mm long by 1.05mm wide, 
Perianth at base .3mm wide. 
Stem in section with outer row of cells,rather thick walled,25 X ? 019151 , 
internal cells thin walled,,abruptly differing ih’ort outer row. Averaging 
15mm wide. nearly hyaline 3 istinctlv verrii 50 se n „.. 
Type,Canyon creek,Monte Vista Pan,Placer Co, California June 11th 19- 
coll F A liacl’adden,in herb macFadden. 
The continuous innovations give the plant a pieurocarious character, 
and the perianths are sometimes curved. 
A he irregular cells are very similar to those of 0 atrovirens,to which 
the plant seems closest in relationship,but that plant is dioeous,i@3==fefc 
perianth is ovate to oblong-ovate,but is variable in shape,'it however 
does not ap pear to have any tendency to approach the sjigr11at ' em'ate 
pointu&Fthe above. The stem is section shows sma 11 e rTceTTs, an A while the 
outer are nearly as large as thpse^of above,the inner are disti ctly 
1 arger,averaging 20mm,and not^ma^meil off from the outer row. 
The perianth of J puiaila has "som^ 4 approach to that of above,but is more 
longly attenuate,and less markedly crenulate at mouth,also it is nearly 
always terminal in axrpearanae,and shows no sign of being ventricose above, 
being rather fusiform. The leaves are larger,and while the padcal colls 
are not markedly larger,they are less irregular,more noticeably thin 
walled,and below they are distinctly larger,mostly some 50u long,or even 
longer. The marginal.row is rather distinctly marked off. 
^ In stem section the^fj Jmnila show but little tendency to differ, nd though 
the outer are larger,25 a 30,the innta^ are also iar or than above,some 
17u,gradually nixing with outer row,not disticntly narked off. They are 
also distinctly firm walled . 
J ychiffneri has a different perianth,the male bracts are directly below 
the perianth,the leaves are distinctly different on the infertile 
branches from the broader than long leaves of the fertile stems. 
It has to be renemte red however that othrr of the califoraian jungermannia 
are variable,thus j Schiffnerr from there In s larger cells than usual,and 
a longer perianth,though variable perianth isalso. noticcable from 
material collected in i> C and Alberta. ThernTpiimla had not the 
longlyattenuated perianth usually found on European material. 
J Bolanderi is distinctly different,and the large document leaves with 
"upper leaf cells 25-40u,and basal 45-96,will easily mark off from above. 
J uanicola p s described ss perianth obovoid,exserted,irregularly plicate 
towards the abruptly contracted,at first crenulate-denticulate month. 
The c&ll size given is larger also,24-50u. 
J riparia has larger cells,more thin wailed,smaller trigones 
c SA 1 liS8 r Snfi e SHip|i t itee^iiftg t yefefi 
of the above - ^^ 
