56 
NEW ARRANGEMENT OF 
^'^ non integrum, sed de summitate in lacinias irregulares 
illico sese revolventes decedens dilutissime rutilans Peri- 
stomium nullum. Columella maturitate nulla. Sporulce exi- 
guas, globosse, pallido-virides, hyalinae. 
Char. Diff. Seta terminalis. TJieca ore nudo. Oper- 
culum laeiniatum^ laciniis deciduis. Calyptra campanulata^ 
basi Integra. 
FnucT. Calyptra mitriform, entire at the base, fuga- 
cious, somewhat shorter than the theca, tender, of a pale 
brownish colour, and loosely reticulated. Seta terminal, 
equal in length to the stem, yellowish, at length reddish, 
erect, capillary, never twisted, somewhat incrassated at the 
apex. Apophysis none. Theca entire, smooth, subglobose, 
excessively minute, yellowish-brown when mature ; orifice 
contracted, with an incrassated margin, without an annulus, 
and of the same colour as the theca. Opercidum delicate, 
slightly convex, reticulated in a striated manner ; " not en- 
tire, but splitting from the centre into irregular lacinige, 
which are revolute and deciduous, and of a very pale red 
colour." Feristomium none. Columella in the mature theca 
none. Sporulce exceedingly minute, globose, pale green, 
pellucid. 
DiFF. Cii AR. Seta terminal. Theca with a nailed mouth. 
Operculum laciniated, the lacinicB deciduous. Calyptra cam- 
panulatCy entire at the base. 
Veg. The roots of Schistostega are simple or branched, 
of a brownish colour, and pellucid. The stems are simple, 
* Hbdw. Stirp, vol. i. p. 7&j 
