66 Rhodora [APRIL 
more nearly circular, the sides being convex. The orbicular or ovate- 
orbicular underleaves average about 0.35 mm. in length and give rise 
to a great abundance of long rhizoids. They are bifid to the middle 
or a little beyond with a blunt sinus and the divisions are erect or 
slightly divergent and obtusely pointed. In rare instances one of the 
divisions bears a blunt supplementary lobe on the outside. The 
inflorescence is described as autoicous. The small size of the plants, 
the angle at which the leaves spread, the distinct trigones, and the 
deeply bifid underleaves usually make it easy to distinguish the species 
from C. Trichomanis. Unfortunately etiolated stems are often devel- 
oped in which the leaves are long-decurrent and the trigones scarcely 
apparent. Such stems might be the source of considerable confusion, 
if they were not always associated with normal stems in which the 
true characters of the species were well shown. 
7. CALYPOGEIA SUECICA (Arn. & Perss.) C. Müll. Frib. Beih. 
zum Bot. Centralbl. 17: 224. 1904. Kantia suecica Arn. & Perss. 
Rev. Bryol. 29: 29. f. 1-6. 1902. Cincinnulus suecicus C. Müll. 
Frib. Beih. zum Bot. Centralbl. 13: 98. 1902. Cineinnulus Trich- 
omanis, var. suecicus Meylan, Bull. de l'Herb. Boissier II. 6: 499. 
1906. On rotten logs. Mt. Katahdin, Maine (Cowles Party, 33). 
Stafford, Connecticut (G. E. Nichols). Since the original publica- 
tion of this species from Swedish specimens it has been reported from 
Scotland, France, Germany, Austria and Switzerland. As in the case 
of C. sphagnicola, however, this is the first record for North America. 
The New England specimens have been compared with a portion of the 
type material with which they agree closely. C. suecica seems to be 
confined to rotten logs and is often found in company with such species 
as Cephalozia lunulaejolia, Riccardia latifrons and Lophozia porphyr- 
oleuca. It bears a strong resemblance to C. Trichomanis but is 
considerably smaller, being of about the same size as C. sphagnicola. 
The leaves are convex and occasionally revolute at the apex; they 
spread obliquely from the axis at about the same angle as in C. Trich- 
omanis and therefore more widely than in C. sphagnicola. The 
leaves are triangular-ovate in outline and their apices are very variable, 
being normally rounded but frequently truncate or bidentate, both 
teeth and sinus varying from acute to rounded. "The leaf-cells are 
small, averaging about 30 in diameter, and in the outer part of the 
leaf are characterized by distinct trigones, triangular in outline with 
1 Harvey (Ruopora 5: 51. 1903) has listed these specimens as Kantia Trichomanis 
from an earlier determination by the writer. 
