6 MR. W. MITTEN ON THE CRYPTOGAMIC FLORA 
ore magno, operculo conico acuminato, peristomio interno processibus 
solidis ciliis binis eequilongis in membrana fere ad dentium medium 
exserta. 
Hab. Canaries, ex Herb. Webb. : Teneriffe, Bourgeau, in Herb. Hook.; 
Madeira, Johnson ; Ireland, on Turk Mountain, 1829, Wilson. 
Nearly resembling S. cupressiformis, Brid., in the state called 
“ mammillatus,” but differing from all states of that variable moss 
in the sharp serrulation of its leaves and in the size of the cells 
—about half as long and nearly twice as wide. In some speci- 
mens the capsule is very short—not longer than wide. 
Hypsum, Dill. 
(Kehynchostegium, Schimp.) 
H. SURRECTUM, sp. nov. Monoicum, caule repente radicante ramis 
pluribus brevibus pinnatim ramoso, foliis patentibus sursum curvatis 
surrectis nitidis e basi ovata longe subulato-lanceolatis, nervo medio 
evanido, marginibus integerrimis in ramulorum apicibus serrulatis, 
cellulis basi paucis majoribus latioribus superioribus elongatis angus- 
tis, periehzetialibus subsécundis ovatis subulato-acuminatis subserru- 
latis nervo brevi, theca in pedunculo brevi levi ovali horizontali, oper- 
culo subulato longirostrato, peristomio interno processibus perforatis, 
ciliis duobus dimidio brevioribus, in membrana fere ad dentium me- 
dium exserta. 
Hab. Madeira, on stones, Johnson. 
A shining green moss, in size resembling H. confertum, Dicks., 
and in the form of its leaves intermediate between it and H. tenel- 
lum, Dicks. It is remarkable for having all its leaves curved 
upwards in the same way as those of H. resupinatum, Wils. 
(Amblystegiwm, Schimp.) 
H. MADERENSE, sp. nov. Monoicum, caule repente latissime cespi- 
toso pinnatim ramoso, folis patenti-divergentibus e basi subovata 
sensim subulato-lanceolatis, nervo percurrente, marginibus integerri- 
mis subserrulatisve cellulis oblongo-ellipticis, perichetialibus erectis 
eonvolutis ovato-lanceolatis obtusatis nervo excurrente mucronatis 
plicatis, theca in pedunculo gracili rubro longissimo arcuata cylin- 
dracea, operculo convexo apiculato, peristomio interno processibus 
latis solidis, ciliis binis zequilongis interpositis, in membrana fere ad 
dentium medium exserta. 
Hab. Madeira, on rocks and the earth, Johnson, and Milne in Herb. 
Hook. ; Canaries, Montagne. ; 
This fine species has the habit and appearance of Z. serpens, 
Linn., but is in all its parts far larger and more rigid. It grows 
in extensive patches of a fresh green or, sometimes, brownish 
