JUNGERMANNIA 99 
I. JUNGERMANNIA BOLANDERI Gottsche; Underw. Bot. Gaz. 13: 
II ст 3888 
Pallescent, caespitose: stems 2-3 cm. long, .2—.35 mm. in 
diameter, prostrate or ascending (?), simple or with infrequent lat- 
eral branches, sometimes innovating below the first pair of 9 
bracts; root-hairs nearly obsolete, colorless or very dilutely yel- 
low: leaves hyaline, rather soft, often flexuous or undulate, ap- 
proximate or slightly succubous-imbricate or on the sterile shoots 
half: antheridia and sporogonia unknown. 
In ditches, Mt. Dana, altitude about 3100 meters (Dr. H. N. 
Bolander, September, 1866). 
Jungermannia. Bolanderi is evidently allied to Jungermannia 
riparia Tayl. and 7. pumila With., yet is sufficiently distinct from 
either in the nearly rootless stems, the softer, strongly decurrent, 
almost longitudinally affixed leaves, and in the larger leaf-cells, of 
Which the marginal show no (or extremely slight) tendency to be 
smaller than their neighbors and quadrate. The leaves are usually 
broadest below the middle, while in Jungermannia pumila they are 
usually broadest at just about the middle. Of perianths we have 
seen but two and these were apparently enclosing unfertilized 
archegonia and were thus probably not fully and perfectly devel- 
oped. The larger of these was 1.4 mm. long and .8 mm. in 
Sreatest width, which was about the size of those seen by Dr. 
ttsche, judging from his figures and his scale of magnification. 
The mouth in this was smaller, more nearly entire, and more ab- 
"іру contracted than in either Jungermannia прапа or /. pumila 
~~ Was, in fact, almost liochlaenoid. Our description of the peri- 
