384 WILLIAMS: CALYMPERACEAE OF NortH AMERICA 
considers it to be dioicous; he retains it under Calymperes although 
describing a peristome of sixteen teeth that hardly project above 
the rim of the capsule, a pale, narrow border as in Syrrholodon 
and a calyptra split on one side; a sterile specimen is also mentioned 
as bearing filiform propagula as in the recent collections; the lid 
is said to be subulate and as long as the capsule, but both 
mature lids and calyptras seem to be unknown in any available 
collection. 
19. Syrrhopodon filigerus (Aust.) Williams, comb. nov. 
Calymperes filigera Aust. Bot. Gaz. 4: 151.. 1879. 
Flowers and fruit unknown: in thin, dusky green mats with 
stems 6-8 mm. high; leaves mostly 2.5-3.5 mm. long, incurved or 
crispate when dry, from a narrowed, more or less oblong, base 
becoming slightly wider upward to a point about three fourths up 
leaf, then gradually narrowing to the broadly acute apex, the 
leaf-blade somewhat keeled and borders flat and entire or nearly 
so; costa vanishing in apex, 40-50 » wide about one half up and 
one tenth the width of the leaf, sometimes bearing numerous 
filiform propagula from near the middle half way up to apex; 
costa in cross-section somewhat semiterete, with six or seven 
guide-cells, stereid bands above and below them and without 
differentiated outer cells; the cells of leaf-blade mamillose on upper 
side, finely papillose on under side; border of leaf scarcely extending 
above the middle, often more or less wanting below, composed of a 
pale, cylindric band of elongate, stereid cells; cells of blade pellucid, 
mostly slightly elongate, somewhat angular, the median 7-8 # 
wide and 8-10 » long; cancellinae often extending two fifths up 
leaf and terminating next the costa in very acute angles. [FIG. 
19.] 
TYPE LOCALITY: Caloosa, Florida. 
DISTRIBUTION: known only from the type locality. 
This species is nearly related, by the position of the propagula 
and shape of leaf, to S. parasiticus, but the latter is a larger plant 
with much wider leaves and costa. 
Note.—S. circinatus Schimp. is Symblepharis Schimperianum 
(Paris) Card.; S. crispatus Hampe is Didymodon campylocarpus C. 
Miill.; S. fragilis Hampe is Trichostomum Schlimii C. Miill.; S- 
strigosus (Brid.) Mitt., probably does not belong to the Calym- 
peraceae, but the type does not seem to be known in Berlin. 
