WILLIAMS: CALYMPERACEAE OF NortH AMERICA 393 
of three to five stereid cells surrounded by seven or eight larger 
outer cells; leaf-cells throughout upper blade distinct, slightly 
elongate, 6-7 » wide by 8-1c uw long; teniolae usually distinct in 
upper part of clasping base, four to eight cells in from margin, 
merging into the elongate cells of border toward base of leaf and 
upward soon terminating in the thickened leaf-border; cancellinae 
extending about one fourth up leaf, mostly terminating in acute 
angles or sometimes rounded or truncate; perichaetial leaves 
about like stem-leaves but with higher clasping base and green 
cells extending more or less downward between the cancellinae 
and costa; seta erect, 4-5 mm. long; capsule 2 mm. long, cylindric, 
with conical, short-beaked lid; calyptra plicate, scabrous above. 
[Fic. 9.] 
TYPE LOCALITY: St. Vincent, British West Indies. 
DisTRIBUTION: St. Kitts, Guadeloupe, St. Vincent, and Porto 
Rico. | 
ExsiccaTr: Husnot, Pl. des Antilles, 135, 195. 
10. CALYMPERES LONCHOPHYLLUM Schwaegr. Suppl. 1°: 333. 
1816 
Syrrhopodon venezuelanus Mitt. Jour. Linn: Soc. 12: 125. 1869. 
Calymperes asperipes Besch. Ann. Sci. Nat. VIII. 1: 277. 1895. 
Dioicous, male plants much like the fertile plants, bearing 
several oblong flowers about 1 mm. long in the axils of the upper 
leaves, the perigonial leaves one half to three fourths mm. long, 
more or less ovate, acutely pointed, pale, costate, slightly serrulate 
above and enclosing five or six antheridia 0.4 mm. long with quite 
numerous, longer paraphyses: in low mats with tomentose stems 
mostly 3-5 mm. high, bearing crowded, ligulate, flexuous, rarely 
crispate leaves up to 15-18 mm. long; stem-leaves from a narrowly 
Oval base with serrulate margins 0.75-1.5 mm. long, extending 
into a point ten to fifteen times longer, mostly slightly wider 
above than below, with thickened, doubly serrulate or sometimes 
nearly entire borders and acute, serrulate apex; costa nearly per- 
current, smooth on both sides, without propagula; cross-sections 
of leaf about one half down show ten or twelve guide-cells in costa 
with accessory cells in one or two rows, stereid bands above and 
below, with outer cells differentiated, and leaf-blade often of a 
double layer of cells extending from costa to the thick, three- 
sided border; leaf-cells throughout spreading blade transversely 
elongate, mostly 4-5 « by 6-8 », smooth on both sides; teniolae 
not extending into narrowed blade, and from distinct to almost or 
quite wanting in basal part; cancellinae nearly filling the basal 
