EDS 
1901] Evans, — Fossombronia salina 9 
in the season of the year in which they mature their spores. They 
agree also in the unsatisfactory characters drawn from the vegetative 
structure of the gametophyte, such as the outline of the stem-section, 
the shape of the leaves and the average size of the leaf-cells. Although 
these points of resemblance are not all that we might desire in the 
present genus, they seem sufficient to justify us in referring these 
East Haven specimens to Austin’s F. angulosa and hence to Lind- 
berg's F. salina. 
Closely agreeing with the Connecticut plants and apparently refer- 
able to the same species, are the specimens from Florida, distrib- 
uted by Underwood and Cook as F. angulosa.1 These specimens, 
which were collected in March, are a little past maturity. They 
seem to have lost all signs of antheridia but show characteristic 
spores. "Through the kindness of Professor Underwood, I have had 
the privilege of examining younger specimens of the same plant col- 
lected in January. On some of these, the capsules are just maturing, 
but there are also young branches present which exhibit both anther- 
idia and archegonia, showing that the inflorescence is monoicous. 
It would appear as if the season for the ripening of the spores were a 
little less definite in Florida than farther north, but this might easily 
be accounted for by the differences in climate. 
Although Zossombronia salina is known from so few localities, it 
will probably be found at intermediate stations along the Atlantic 
coast. The following description, drawn from spore-bearing mate- 
rial, will aid in its recognition : 
FossoMBRONIA SALINA Lindb. Acta Soc. Sci. Fenn. I0: 533. 1875. 
F. angulosa Aust. Hep. Bor.-Amer. vo. 779. 1872 (not Raddi). 
Heteroicous: scattered or caespitose, dark green becoming paler or 
brownish with age : stems dichotomous, 1 cm. or more long, o.3 mm. in 
diameter and about ro cells thick, prostrate, closely adherent to the 
soil by means of numerous deep purple rhizoids, upper surface plane or 
slightly convex, lower surface strongly convex or carinate: leaves more 
or less imbricated except on attenuate axes, 1-1.3 mm. long, more 
variable in width, 1 cell thick except at the very base, quadrate-oblong | 
from a broad, slightly decurrent base, apex broad, indistinctly lobed and 
crispate, the lobes very variable, mostly rounded but sometimes apicu- 
late or acute : leaf-cells very variable in size, averaging 37 x 28 » on edge 
of leaf, 60 x 30 p in the middle and 70 p at the base: pseudoperianth 
about 1.5 mm. high, turbinate, slightly and irregularly sinuate-lobed and 
! Hep. Amer. no. 118. 
