122 JUNGERMANNIACEAE 
Nowellia МИ: Godman, Nat. Hist. Açores, 321. 1870. 
Schiffn.; Eng. & Prantl, Nat. Pflanzenfam. 1°: 97. 1895. 
Eucephatozia Schiffn. 2. с. 
Prinolobus Schiffn. р. р.; Eng. & Prantl, Nat. Pflanzenfam. г’: 98- 
1895. 
than one half their length, often subcomplicate, the lobes tri- 
angular-ovate, lanceolate, or subulate, sometimes connivent, the 
margins plane or slightly incurved, never recurved, entire in most, 
in a very few denticulate or sharply serrate-dentate ; leaf-cells from 
rather large and pellucid to minute and subopaque, the walls thin 
in most of the species, thickened in a few, especially toward the 
angles, cuticle smooth or somewhat roughened. Underleaves 
much smaller than the lateral and often entire, wholly wanting ™ 
most species except in the Ф involucre where they are always 
represented and often nearly or quite equal the bracts in 516. 
Dioicous, autoicous, or polyoicous, very rarely paroicous. An- 
droecium subamentiform, median or more rarely terminal, some 
times occupying an entire branch; perigonial leaves often a little 
larger or smaller than the ordinary, more concave and more 
crowded, sometimes with a small accessory incurved lobule on the 
dorsal margin; antheridia solitary. Archegonia several or nV 
merous, terminal on a much shortened or sometimes elongated 
ciliate, 
toward the base, commonly constricted at the denticulate, у 
ог 
