M'Ardle & Lett — On Rejxiticce, KiUarney, 1897. 323 



unknown on the Continent, and so far no American or other 

 foreign specimens have been met with." ^ At Tore Waterfall 

 we have gathered specimens of the male plant nearly one inch 

 in length, branched sparingly at either base or apex, but plants 

 appear to he pinnate by the alternate lateral amentse which are 

 formed of from three to twelve or more pairs of altered leaves. 

 Perianths oblong, tapering, and plaited for the lower third 

 to a narrow base, shorter than that of Radula complanata, and 

 less compressed, month entire, truncate slightly narrowed, 

 calyptra oblong oval, stalk of capsule emersed for about the 

 length of the perianth. Capsule dark brown, oblong oval, longi- 

 tudinally striated, spores spherical with a well-marked hyaline 

 ring, elaters few bispiral. 

 19. Radula HoUii^ Spruce, Journal of Botany, July, 1887, p. 209. 

 "Within the spray of the waterfall on Duniortiera irrigua, 

 Juhula HiitchinsicB, Lejeimea Machai and Radula Carringtoni . 

 G. A. Holt, June, 1885. 



(Plate IX.) 

 "Very rare. This was the first discovery of the plant in 

 Ireland, when it was named and described by Dr. Spruce in 

 the Journal of Botany. It does not appear to have been again 

 noticed by anyone till September, 1897, when we rediscovered 

 it among Radula Carringtoni^ and in shallow flabellate patches 

 on the wet rocks near the waterfall, and we were fortunate 

 in finding several perianths on the specimens collected. The 

 perfect fruit, with the capsule is, however, still a desideratum. 

 Perianth smooth, inversely cone-shaped, gradually tapering 

 from an entire truncate slightly flattened mouth to narrow base. 

 As the complete state of the fruit has not yet been found, the 

 perianth may be more flattened at first. In old perianths of 

 R. eomplanata from which the capsule has fallen, much of the flat- 

 tening disappears, and the empty perianths are funnel-shaped. 

 Radula Moltii much resembles in size, colour, and mode of 

 growth, large forms of Lejeunea serpyllifolia and Lejeunea flava. 

 The lobule or back lobe is only -|-ththe size of the major lobe to 

 which it is closely pressed ; it is rounded squarish without any 

 swelling of its fold and is strongly decurrent, and the major 

 lobe is divergent from the apex of the fold. The cells are minute, 

 pitted, and densely chlorophyll ose. 



' It has been discovered near Moidart, Scotland, by Mr. S. M. Macvicar, 

 10th October, 1898. 



R.I. A. PKOC., SEE. III., VOL. V. Z 



