320 hepatics (Stephani). [Anthoceros 
in the more elevated wet swampy woody places at an altitude of 
■".MOO ft. ; with fr. April 1860. No. 253- 
22. NOTOTHYLAS Sulliv. Musci Alleghan. p. G9 (1846). 
1. N. angolensis Steph. sp. n. 
Dioicous. Plant large, green, depresso-csespitose. Frond 
10 mm. long, from a narrow base widely obconic, at apex thick, 
lobulate, very crispate. Costa very longly radicellose, abruptly 
produced, yet shallow; wings of the frond longly attenuate. 
Capsules arising from the margin of the frond, procumbent, 
from a very small conical inserted bulb cylindrical, acuminate, 
obtuse, ascending in a curve, with walls thick, formed of short 
very incrassate cells ; stomata none. Spores 34 /x, flavescent, 
smooth ; elaters a little smaller than the spores, with the spiral 
fibre reduced to three lamella? which run round the wall 
meridionally. Anthers unknown. Involucre large, 3- or 4-winged 
superficially with minute lamella?, especially rough on the wings. 
PUNGO Andongo.— Velvety green, flabellately applied to the ground 
in swampy places, which were becoming dry, between Condo and 
Quisonde, at an altitude of about 3000 ft. ; with perfect fr. 12 March 
1857. No. 232. 
The plants are very crowded in growth, the younger fronds running 
over the old ones in all directions ; they are very thin at the base and 
stout and fleshy in the upper part of the frond ; the margin bears 
numerous small and crisped lobes, particularly about the growing 
point, which lies safely buried under them, in the deep cleft of the 
apex. This species is a near ally of N. decurva Mitten, and differs 
from that species in the size and thickness of the frond. The size and 
sculpture of the spores of N. decurva are not stated by the author. 
2. N. flabellata Steph. sp. n. 
Anthoceros flabellatiis Welw. ms. 
Monoicous. Plant very large, densely stratified, green at apex, 
elsewhere flavo-rubescent. Frond up to 3 cm. long, repeatedly 
furcate, with the forks very thin (3 to 4 cells thick), with the 
margin remotely pinnate ; pinna? small, minutely pinnulate ; the 
whole frond exceedingly irregular, as though coarsely lacerated, 
formed of large cells, without cavities. Capsules solitary or in 
pairs, arising from the margin of the frond, which is always inno- 
vated from the base of the involucre, small ( 1 mm. long), clavate, 
with a large inserted basal bulb ; involucre smooth, very thin, of 
oblique growth, completely enveloping the capsule, as in the other 
members of the genus. Valves formed of very long, very in- 
crassate and very fragile cells; stomata none. Spores small (25/x), 
under the microscope brown, minutely rough. Elaters very short 
(28 by 34/a), more than twice as large as the spores, sub-hyaline, 
bispirous, with the spirals laxly coiled. Anthers solitary? in a 
large cavity. 
PUNGO Andongo. — Plant orbicular, 1 to 4 in. wide, bright green, 
with fruits bright orange shining as if varnished : on wet rocks by the 
rivulet of Casalale within the prajsidium, at an elevation of about 
3000 ft. : with perfect fr. May 1857. No. 131. 
