No. 11.] THE BRYOPHYTES OF CONNECTICUT. 43 
New Milford, Evans. Harrrorp: Windsor, Evans. ToLLanp: 
Bolton, Nichols. WinpHam: Canterbury, Mrs. Hadley. 
FarirFIELD: Sherman, Evans. New Haven: Branford, Hall; 
East Haven, Harger; New Haven (1856), Eaton; Orange, 
Evans; Oxford, Harger; Woodbridge, O. D. Allen. 
Greenland to Alaska, south to Florida and the West Indies; 
Europe; Asia. 
Rer. Eaton, 15, 69. Evans, 28,170. Underwood, 75, 69. 
ORDER JUNGERMANNIALES 
FAMILY METZGERIACEZ 
1. Gametophyte a thallus with no indication of leaves; 
capsule splitting longitudinally at maturity into four 
WAVES: hale tu Sista Sia s wef ROKed aoe a wahaawee omaked devant 2 
Gametophyte more or less clearly differentiated into stem 
and leaves! ssgiccnsijeghiniv awd caewaeseehwuadaa Takes 5 
2. Thallus composed of parenchyma throughout....... mee 3 
Thallus with a median strand of narrow elongated cells 4 
3. Branches lateral: capsule oval.................-6- Riccardia 
Branching produced by forking; capsule spherical....Pellia 
4. Thallus repeatedly forking, bearing cilia on the margin; ~- 
antheridia and archegonia borne on short ventral 
branches: 40.0 anasas swerved chev dmen vase ere eu Metzgeria 
Thallus simple or with scattered ventral branches, margin 
entire; antheridia and archegonia borne on dorsal 
SUELACE: 5 <p feesrere scion Fase wisn aie eisai e ne weet ea aaa acets Pallavicinia 
s. Leaves in the fotm of marginal crenulate scallops; 
rhizoids colorless; capsule splitting longitudinally at 
maturity into four valves........... 2... cee ee ee eee eee Blasia 
Leaves distinct; rhizoids purple; capsule splitting ir- 
regtilarly at. Maturityisec cosas cineieee sawed Fossombronia 
Riccardia S. F. Gray 
1. Thallus mostly 4-10 mm. broad, sparingly branched R. pinguis 
Thallus mostly 1-2 mm. broad, copiously branched...... 2 
2. Thallus pinnate or bipinnate........ Rises dpegnas: fa aed ate maclans 3 
Thallus palmate or irregularly branched................ 4 
3. Ultimate branches distinctly bordered by 2 or 3 rows of 
Cells: es seine a5 daaina daw s cahew es cceenes yew oa Re R. multifida 
Ultimate branches indistinctly bordered by one row of ‘7 
CONS. vdakvca hutesdda thew PROGR sa Gicinaar eee nad R. sinuata 
