340 HEPATICjE. 



cells small, roundisli-qnadrate, walls thin, trigones distinct- 

 Stipules none : sometimes pseudo ones are found near the 

 branches of the stem ; then subulate, entire, or bidentate. Bracts 

 subrotund, tridentate to about \ to ^, sinuses and segments acute, 

 margin slight!}'" dentate ; bracteole small, ovate, bifid, sinus and 

 segments acute. Perianth terminal, oblong-obovate or oblong- 

 oval, upper portion 4-, 5-, and 6-plicate, nearly all antical, one 

 fold often running down to the base, mouth contracted, ciliolate, 

 from 40 to 50 cilia, which are 2, 3, and 4 cells long. Capsule 

 roundish-oval, reddish-brown ; spores and elaters reddish-brown, 

 elaters twice as broad as the spores. 



Male stems often smaller, perigonial bracts terminal, about 

 4 or 5 pairs, closely imbricate, subrotund, tridentate, basal segment 

 incurved, ventricose ; antheridia oval with short bearers, 2 or 3 in 

 eacli bract. 



Fruits ]\rarch, April. 



Dimensions. — Stems 1 to 2 inches long, '3 mm. diam., with 

 leaves 2" mm. to 2*5 mm. wide ; leaves 1'25 mm. long x 1*1 mm. 

 broad, segments "3 mm., 1' mm. x 1* mm., seg. '25 mm., 1' mm. 

 X "8 mm., seg. '25 mm.; cells '02 mm. x '03 mm., '02 mm. 

 X '02 mm., "015 mm. x '02 mm., '0175 mm. x "0225 ; bracts 

 1'5 mm. long x Ivo mm. broad, segments -3 mm., 1"25 mm. 

 X 15 mm., seg. '5 mm. ; bracteole "75 mm. long x '5 mm. broad, 

 seg. "2^ mm. ; perianth 3' mm. long x 1*75 mm. broad, 2*75 mm. 

 X 1-25 mm., r75 mm. x 1" mm,, 2* mm. x 1- mm. ; cilia at the 

 moutli of perianth "1 mm. ; perigonial bract 1 mm. long x 1*15 mm. 

 broad, ; antheridia "2 mm. x "175 mm. 



Hab.— Growino' in spreading patches, somewhat entangled 

 with the long rootlets, or creeping amongst mosses on shady 

 walls or rocks, partial to limestone, but not peculiar to it. Not 

 uncommnn. 



1. Penzance, 1]\ Cuniow. 7. Penmaenpool, E. M. Holmes; 

 Tyn-y-'xroes, Holt §• Wild; Arthog, W. H. P.; Cader Idris, 

 Merionetli shire, IF. H P. ; Caerwys, Flintshire, ./. //, Lewis ; 

 Bettws-y-Coed, J/. B. Slater, C. J. Wild. 8. Miller's Dale, 

 Derbvshire, G. A. Holt, IF. H. P. 9, Ease-ill near Leek, West 



