4 NEW OK EABE SPECIES OF TASMANIAJ^ HEPATICJi. 



trigonous, of a single layer of cells, mouth laciniate-ciliate ; 

 androecium lateral, terminal on proper branches ; perigonial 

 leaves, bifid, with the lower segment incurved, antheridia 1-2, 

 minute, oval. 



Del. Leitg. Mittheil, des Katurw. Yer. fiir Steiermark, 1876 

 Uber Zoopsis, fig. 10. 



Dioicous. Fronds slender, denselv entangled, growing in 

 flattish, shining, hyaline patches, pale green to ^hite, pros- 

 trate, fiagelliferous, flagellapostical, radicellose, microphylous. 

 Stems irregularly ramose or subbipinuate, vertibrate, slightly 

 flattened, branches lateral or postical, patent, distant, cortical 

 cells 5, large, hyaline, central bundle of cells, 6 or 7, miich 

 smaller and longer, chlorophyllose. Rootlets few, slender, 

 white, proceeding from base of underleaves. Leaves suecu- 

 bous, sublongitudinal, distant, alternate, patent, decurrent at 

 the base, divided to the base, or nearly so, into two subulate 

 unequal jointed lobes, antical lobe inserted below and seated 

 upon the former, shorter, awl-shaped, inflexed, sinus acute, 

 leafy portions 3 cells broad, cells large, tumid, subquadrate, 

 with rounded angles, hyaline, catenulate. Underleaves 

 everywhere : present, bin,ate, the cells nearly parallel ; some- 

 times a smaller terminal cell is met with. Involucre 

 cladocarpous on short postical branches, 4 or 5 on a stem, 

 bracts 3 pairs, much larger than, the leaves, oblong quadrate, 

 bifid,divided down to rather more than -I, sinus acute, segments 

 subulate, an exterior tooth near the base of the segments, 

 bracteole simple, subulate, or bifid, oval-oblong. Perianth 

 trigonous, ovate-oblong, composed of one layer of cells, 

 40 cells round, mouth laciniate-ciliate, about 4 segments 

 10 cilia. 



Male spikes terminal on proper lateral branches. Perigonial 

 leaves deeply and unequally bifid, the lower (antical) segment 

 inflexed, and enclosing 1-2 minute oval antheridia. 



Measurements : Stems, |- to lin. long, "2 mm diam., "25 

 mm X "17 mm, '225 mm x '175 mm; cortical cells, '125 

 mm X '075 mm, '125 mm x -1 mm ; interior, "01 mni ; 

 leaves, '4t ixka long x -3 mm broad ; seg. uJpper, "275 mm 

 long, lower '2 mm long ; cells, 1-12 mm, •! mm x -07 mm, •! 

 X 06, -1 X -05, -08 X -06, -06 x -06 ; underleaves, -16 mm 

 long X '076 mm broad, •! mm long x -075 mm broad; 

 bracts, 2*25 mm long x -6 mm broad ; seg., 1" mm long, 

 2' X 1" J seg., 1', 1-7 X "9 broad ; seg., 1* ; bracteole, 2* mm 

 long X '4 mm bi'oad, 1-6 mm long X -9 ; perianth, 2* mm 

 long X '8 mm broad ; cilise, '5 mm to '7 mm long ; pistil- 

 lidia, '2 mm long X 0'75 mm broad ; perigonial leaf, '5 mm 

 long X -35 mm broad ; antheridia, '1 mm X -075. 



