Musci Exoricti.—Richardiani. 
DIDYMODON ? SPLACHNIFOLIUM. 
Didymodon ? caule subelongato simplici, foliis ligulatis 
reticulatis integerrimis, nervo sub summum apicem 
evanescente, seta breviuscula, capsula cylindracea 
operculo conico. (Tas. LXXVI.) 
Has. In insulis Antillarum. Prof. Richard. E S% Dominici 
insula communicavit D, Coulon. 
Caules cespitosi, vix unciam longi, simplices vel per innovatio- 
nem nunc divisi, graciles, rubescentes, erecti. Folva laxe im- 
bricata, erecto-patentia, ligulata, obtusa, parum concava, sub- 
undulata, tenerrima, laxe reticulata, margine omnino integer- 
rima, nervo sub summum apicem evanescente instructa. Seta 
terminalis, vel ob innovationem lateralis, 3-4-linearis, flave- 
rufa. Capsula elongato-cylindracea, flavo-rufa, erecta, stricta. 
Operculum exacte conicum, flavum, basi rufum. Calyptra 
peristomiumque perfectum desunt, 
rn IE 
The teeth of my specimen of this moss are too imperfect to allow 
me to ascertain decidedly whether it belongs to the genus Didy- 
modon,—yet | think that it iscertainly a species either of that or of 
the genus Weissia,—but to whichever of these it be referred, there 
can be no doubt of its being entirely distinct from any hitherto 
described plant: and from the similarity of its leaves to those of 
some species of Splachnum I have derived its trivial name. I 
have received specimens of this plant both from the learned Pro= 
fessor Richard of Paris, and from M. Coulon of Neufchatel, a 
gentleman to whom I am indebted for many interesting crypto- 
gamic subjects from the West Indies, 
Fig. J, tuft of plants, nat. size. Fig. 2, single plant, Fig. 3, 
leaf. Fig. 4, capsule, Fig. 5, operculum,—magn, 
