4 MR. W. MITTEN ON THE CRYPTOGAMIC FLORA 
latioribus, theca in pedunculo gracili rubro horizontali pendulave cla- 
vata rubra, operculo conico, peristomio dentibus angustis elongatis pal- 
lidis, interno carente.—B. alpinum, var. Mediterraneum, De Notaris, 
Syll. p. 129.. B. princeps et nuperius, R. gemmiparum, ejusd. MS. 
B. semicompletum, Mitten in lit. 
Hab. Madeira, on the earth in moist places, Johnson. In insulis freti 
Bonifacii maris Mediterranei, De Notaris. 
Intermediate in size between B. alpinum, Linn., and B. Sauteri, 
B. et S., but most nearly allied to the former, from which it is 
distinguished by its smaller size, short densely tufted stems, and 
the form and substance of the leaves. In all the specimens yet 
examined there has been no trace of internal peristome. 
B. OBOVATUM, sp. nov. Dioicum, foliis patentibus obovatis rigidis nervo 
crasso breviter excurrente mucronatis, margine erasso tereti superne 
parce indistincte denticulato, cellulis fere omnibus conformibus utriculo 
repletis basi nec oblongis nec rectangularibus, theca in pedunculo 
elongato clavato-cylindracea peridula, operculo conico, peristomio nor- 
mali. 
Hab. Madeira, near Funchal, on the earth, 1858, Johnson. 
Like B. Donianwm, Grev., in size and habit, but with leaves 
twice as wide, having a firm terete margin, and cells much smaller ; 
in the same particulars it differs from B. capillare, Hedw., which 
is also found in Madeira. 
LzPrporiLuM, Brid. 
(Tetrastichium.) 
L. FONTANUM, sp. nov. Caule prostrato viridi vage ramoso simplicive, 
foliis quadrifariis compressis planis, seriebus dorsalibus divergentibus 
majoribus elongato-oblongis apice acuminatis basi asymmetricis mar- 
gine apice serrulatis inferne integerrimis enerviis, seriebus ventralibus 
patenti-divergentibus angustioribus ovali-lanceolatis subintegerrimis, 
cellulis laxissimis prosenchymaticis pellucidis. 
Hab. Madeira, Joaö Gomez Ravine, about springs, Johnson. 
The specimens of this fine moss are too fragmentary to give a 
good idea of its habit ; it appears to be prostrate, but not rooting. 
Some of the specimens are more than 2 inches long, and produce 
irregular branches resembling the main stem ; others have nume- 
rous short branches with uniform small oval obtuse leaves, still 
retaining, however, the quadrifarious arrangement; but in both 
cases the branches are confined to one side of the stem. The 
leaves are pale glaucous green, and so inserted as to leave the stem 
continuously visible along the dorsal side; the arrangement in 
