464 HYMENOPIIYLLUM. 



52*. H. pumilum, C. Moore ; rhizome capillary, wide-creeping ; st. filiform, 

 |-| in. ; fr. ^-f in. 1., roundish in upper, cuneate in lower half, flabellato- 

 bipinnatifid ; divisions ligulate, close, 1-veined, % lin. br., obscurely denticulate, 

 upper simple, lower deeply forked or trifid ; surfaces naked ; sori one to a 

 frond, terminal ; inv. deeply cleft with ovate entire lips. 



Hab. Mount Tomah, New South Wales, C. Moore. 



52*. H. Moorei, Baker ; rhizome capillary, wide-creeping ; st. filiform, naked, 

 J-| in. ; fr. \ in. 1., rounded in upper, cuneate in lower half, flabellately bipin- 

 natifid ; segm. ligulate, f lin. br., distinctly toothed, close, 1-veined, upper erecto- 

 patent, simple, lower deeply 2-3-fid ; surfaces naked ; sori 1-3 to a frond, 

 usually free, lateral rarely terminal, immersed at the base ; inv. 1 lin. deep, the 

 toothed rounded lips exceeding the short cup-shaped tube. 



Hab. Lord Howe's Island, C. Moore. 



52*. H. minimum, A. Rich. ; rhizome filiform, wide-creeping ; st. filiform, 

 - in. ; fr. oblong-deltoid, - in. 1., with several close spreading distinctly- 

 toothed pinnse, the upper simple, ligulate, the lower often forked ; sori solitary, 

 terminal on the main rachis only ; inv. free, cut about halfway down the valves, 

 toothed. Voy. Astrol. t. 14. fig. 2. 



Hab. New Zealand and Auckland Isles. Differs from all the forms of Tunbridgense 

 by its solitary terminal sori. 



62*. H. Cheesemanni, Baker ; rhizome filiform, wide-creeping ; st. filiform, 

 in. 1. ; fr. forked or palmately 3-4-fid, -| in. 1., with ligulate ciliato-dentate 

 one-veined lobes, |-1 lin. br., narrowed at the base, rarely simple ; sori terminal 

 on the lobes ; inv. immersed at the base only, the entire rounded valves much 

 exceeding the very short tube. Hk. Ic. t. 1132. 



Hab. Titiranja range, New Zealand, T. P. Cfaeseman; discovered in 1870. 



63*. H. khasianum, Baker ; rhizome capillary, wide-creeping ; st. -1 1 in., 

 winged upwards ; fr. lanceolate, tripinnatifid, 2-3 in. 1. ; pinnw close, deltoid, 

 ascending, cuneate-truncate at base on lower side ; lobes close, ligulate, 1-veined, 

 distinctly toothed, the upper simple, the lower forked ; main rachis winged 

 throughout ; surfaces naked ; sori copious, free, terminal, the ovate toothed lips 

 reaching down nearly to the base. Leptiocionium flaccidum, V. D. B. Suppl. 

 p. Go. 



Hab. Khasia, Griffith, HLfil. & Thomson. 



XVII. TRICHOMANES. Page 7188. 



14*. T. exiguum, Baker ; rhizome filiform, wide-creeping ; st. very short ; fr. 

 %-% in., linear-oblong, narrowed at the base, blunt, repand, rarely deeply pin- 

 natifid, the edge ciliated with minute stellate bristles ; central vein distinct from 

 base to apex ; veinlets fine, ascending, usually simple, with a few spurious venules 

 interspersed ; sorus solitary, terminal ; lip rounded, half as long as the immersed 

 cuneate tube. Hymenophyllum, Bedd. Fern. Brit. Ind. t. 275. 



Hab. Hills of west side of Indian Peninsula and Ceylon. 



24*. T. assimile, Mett. ; rhizome slender ; st. 1| in- ! winged upwards ; fr. 

 oblong-lanceolate, 2^ in. l. v 1 in. br., tripinnatifid, proliferous from the stem 

 or rachis j rachis winged throughout ; lower pinnce ovate-rhomboid, with 



