RHIZOSPERMÆ
Azolla Caroliniana, Willd.
MUSCI FRONDOSI
Mnium (Bryum) ciliare, Greville in Annals of the Lyc. of New York. 1825, IX. p. 273, t. 23. Our specimens are distinguished by the leaves being generally entire to the middle, in which they approximate to those of Mn. cuspidatum; but they are much narrower, cuneiform below, like those of Mn. affine. I always saw the Setæ single, much bent, and tortuous.
Dicranum purpurascens, Hedw. (Ceratodon purpureus γ purpurascens, Brid.) Most probably; but the fruit is not quite formed.
Neckera viticulosa. In some particulars approximates to Neckera minor; but the leaves are always inclined. A beautiful yellow.
Cryphæa inundata: caule pendulo laxe pinnatim-ramoso ramulis apice incurvis, foliis distantibus oblongo-lanceolatis carinatis nervo crasso excurrente, inferioribus arete complicatis obliquis, capsulis ovalibus heteromallis subsessilibus perichætio longissimo immersis, dentibus peristomii interioris longis persistentibus coloratis apice incurvis.
In ramis fruticum inundatis ad flumina Wabash, Fox and Black Rivers. Decembre cum fructu maturo.
Differs from Chryphæa heteromalla, not only by the long, slender stems, and the thick projecting nerve of the leaves, but most especially by the stiff red ciliæ of the inner peristome, which almost exceed the exterior ones in length, and are incurved inwards at the point. The lower cauline leaves are so broken that the two halves touch with their upper surface, and the leaf acquires almost an ensiform appearance. The leaves of the involucrum are quite nerveless. The capsule is yellow. I did not see the operculum and the hood.