372 WILLIAMS: CALYMPERACEAE OF NORTH AMERICA 
on under side with a leaf-border triangular in cross-section, of 
about eight cells sometimes enclosing one or two stereid cells; 
cells of upper blade distinct, mostly somewhat angular, scarcely 
elongate, 5—7 u in diameter; cancellinae extending up about I mm. 
from base, mostly rounded, sometimes acutely angular at apex; 
perichaetial leaves scarcely differing from those of upper stem; 
pedicel erect, 7-8 mm. long; capsule ovate-cylindric, about 1.75 
mm. long, the flattish lid with acicular' beak rather shorter; peri- 
stome-teeth attached well below the mouth, somewhat irregular, 
short-lanceolate, pale, projecting above the rim 50-60, with 
five or six articulations; spores rough, about 16 py in diameter; 
calyptra slightly rough above. [Fic. 3.] 
TYPE LOCALITY: Florida. 
DistriBuTION: Florida, Alabama, Georgia and Bermuda. 
ILLUSTRATION: Sull. Icon. Musc. pl. 31. 
This is very close to the next species, but the costa is usually 
much rougher on the back, and the cells of the upper part of the 
leaf are less inclined to be slightly elongate. 
4. SYRRHOPODON INCOMPLETUS Schwaegr. Suppl. 2!: 119. 1824 
Syrrhopodon Hobsoni Hook. & Grev. in Brewster, Edin. Jour. 3: 
224, VOSA. < 
Syrrhopodon semicompletus Schwaegr. Suppl. 27: 97. 1827. 
Calymperes Hobsoni Grev. Ann. Lyc. N. Y.1: 271. 1825. 
Syrrhopodon Mohrit C. Miill. Linnaea 38: 633. 1874. 
Syrrhopodon brachystelioides C. Miill. Nuovo Giorn. Bot. Ital. II. 
4:48. 1897. 
Syrrhopodon decolorans ‘C. Miill: Bull. Herb. Boiss. 5: 188. 1897- 
Dioicous, male flowers one to several, terminal and axillary, 
the inner perigonial leaves short, broadly ovate, acutish, costate, 
minutely serrulate, nearly or quite without green point, enclosing 
numerous antheridia and paraphyses a little over 0.5 mm. long: 
in extensive, brownish green mats with more or less curved and 
branching stems 1-5 cm. long; stem-leaves 4-5 mm. long, from a 
rather broad, ovate or obovate base serrulate on margins above, 
abruptly narrowed to a broadly linear, when dry often subtubulose, 
point with thickened doubly serrulate border extending to the 
broadly acute or somewhat rounded serrulate apex; costa not 
quite percurrent, 60-70 » wide one half up leaf and about one 
sixth leaf-width, at apex denticulate, below from nearly smooth on 
both sides to more or less papillose (the papillae mostly 1-4 
high) on back down to cancellinae, in cross-section showing about 
