98 JUNGERMANNIACEAE 
Plants mostly of medium size. Stems creeping or ascending, 
less commonly erect, simple or bearing a few latero-ventral 
branches, sometimes with one or two innovations from below the 
perianth; root-hairs usually long and moderately abundant. 
Leaves alternate, obliquely or almost longitudinally inserted and 
succubous, or transverse throughout, mostly patent-horizontal, 
rarely semivertical, oblong-elliptical, oblong-ovate, orbicular, or sub- 
reniform, never lobed, the margins very entire. Underleaves mostly 
wanting or small. Paroicous, dioicous, or autoicous. Androecium 
terminal or median, 4 bracts ventricose, otherwise similar to the 
leaves, antheridia mostly 1-3, short-stalked, with or without 
paraphyses. Archegonia terminal on the main stem. © bracts 
scarcely different from the leaves, distinct from each other and free 
from the perianth. Perianth ovoid, cylindrical, or clavate, plicate 
in the conical upper part or very abruptly contracted to a short 
tubular mouth, now and then somewhat compressed either laterally 
or dorso-ventrally. Calyptra free, surrounded at base by the sterile 
archegonia. Capsule oval ог globose, dehiscing by straight valves ; 
cells bounding the inner surface ог the valves provided with semi- 
annular thickenings ; seta long or somewhat short. Elaters bispiral. 
Key to the Species. 
Leaves decurrent. у 
Leaves very obliquely or almost longitudinally attached, mostly longer than broad. 
EJ Boland 
Leaves transversely attached, clasping, mostly broader than long. 3. J. Damicola. 
Leaves not decurrent, obliquely attached, elliptical-oblong. 2. J. pumila. 
which has now come to have a definite meaning, however much it may have covered at 
the start, was given a place under Dumortier's section 4//ozia, which four years later 
became his genus Jungermannia. Tt therefore seems to us that, in the spirit at least o 
the unwritten ‹ law of residues," the 45/ozia group is the logical heir to the generic name 
Jungermannia. Та 1 74, however, Dumortier made an unfortunate and according » 
our notions) an unjustifiable transposition of names by which Jungermannia was applied 
све Lophoria of 1835 while his Jungermannia of 1835 was rechristened Арома ; У 
this he has been recently followed by Massalongo, Evans, Heeg, Loitlesberger, and por 
sibly others. ч | : 
elying upon a statement by Professor J. В Wilbrand (Flora, 9?: 518. 1826) 
to the effect that “Ludovicus Jungerman” never wrote his name Jungermann but always 
— 
Emile Bescherelle states (Journal de Botani : wrote 
t otanique, 7: 191. А 
= been informed by other botanists among them Herr Stephani, that Jungermann 
15 name with a single » or with the two 778. Under these circumstances, WÊ p 
rape t is better not to interfere with the spelling adopted by көр 
plus, Micheli, and Linnaeus. 
