320 HEPATics (Stephani). [Anthoceros 



in the more elevated wet swampy woody places at an altitude of 

 5000 ft. ; with fr. April 18G0. No. 253. 



22. NOTOTHYLAS Sulliv. Musci Alleglian. p. 69 (184G). 



1. N. angolensis Steph. sp. n. 



Dioicous. Plant large, gi-een, depresso-csespitose. Froutl 

 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 /jl, flavescent, 

 smooth ; elaters a little smaller than the spores, with the spiral 

 fibre reduced to three lamell?e which run round the wall 

 meridionally. Anthers unknown. Involucre large, 3- or 4-winged 

 superficially with minute lamellse, especially rough on the wings. 



PuNGO AxDdXGO.— 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. drcurra 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 flabellatus 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 ; pinnae small, minutely pinnulate ; the 

 whole frond exceedingly irregular, as though coarsely lacerated, 

 formed of large cells, without cavities. Capsules solitary oi- 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- 

 cras.sate and very fragile cells; stomata none. Spores small (25/*), 

 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 Andon'go. — 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 praisidium, at an elevation of about 

 3000 ft. : Avith perfect fr. May 1857. No. 131. 



