176 
Cryptogamia. 
sixteen teeth. On the trunks of trees. Bryum Stria « 
turn of Spec. Plant, and Withering, and Polytrichum 
Striatum of Hudson and Hull. 
Orthot. Crispum y Curled Bristle-moss ; with branch- 
ed stem ; with linear leaves bent back and waved by 
drying, and foot-stalks lengthened and thickened at the 
summits. On trees. Bryum Striatum , Spec. Plant; 
Bryum Crispum , Withering. 
Neckera. Gen. char. — Caps oblong, proceeding 
from a lateral perichcetium or sheath ; external fringe, 
with sixteen sharp teeth ; internal, with sixteen thread- 
shaped intermediate teeth ; calyptra smooth. 
Neck. Pumila, Small Feathery Neckera ; with pin- 
nated branches ; leaves in two rows, ovate, slightly 
waved, and foot-stalks scarcely exceeding the sheath. 
On the trunks of trees, but rare. Uypnum Pennatum 
of Withering and Fontinalis Pennata of Hudson. 
Neck. Crispa, Crisped Neckera ; with pinnated 
branches, leaves oblong, transversely wrinkled, and in 
two rows, and foot- stalk double the length of the 
sheath. On chalk-hills and elevated woods in a dry 
soil. Uypnum Crispum , Spec. Plant. Hudson, Withe- 
ring, and Lightfoot. 
Neck. Heteromalla, Lateral Neckera ; with diffuse 
branched stem, leaves ovate, sharp, concave, imbricat- 
ed on all sides, and capsule sessile on one side. On the 
trunks of trees. 
Mnium. Gen. char. — -Caps, cylindrical, furrowed ; 
external fringe, with sixteen teeth dilated at the base ; 
internal, membranaceous, divided into segments ; ca- 
lyptra smooth, foot-stalk terminal. 
