1038 HEPATICvE COLLECTED BY MR. T. WHITELEGGE IN N. S. WALES, 



7* Frullania diplota, Tayl. 

 (J et 9 cum per. 

 Mermaid's Glen, Blue Mts., 3,000 ft., Sept., 1885 (9). On 

 wet rocks, Blackheath, Blue Mts., Sept., 1885 (26). 

 8 Lejeunea (Harpa le.jeunea) mimosa, H. f. T. 

 (J et 9 cum per. 

 Gore Cove, Sydney, May, 1885 (54). 



Lejeunea ru/escens, Lindenb., Syn. Hep. p. 366, seems to be the 

 same thing, but L. mimosa was fii'st published in Lond. Journ. of 

 Bot., 1844, p. 318, n. 65, whereas the 3rd part of the Synopsis 

 pp. 305-464, appeared in 1845. 



Of the specimen of L.rufescens from Terra Statuum (Hb. Hook.), 

 a fragment remains in Wilson's Herb, named J. lineata, Sw. This 

 and the plant from the Auckland Group have a reddish-brown 

 tinge ; but Australian specimens are dull, sordid green. The group 

 to which L. mimosa belongs is remarkable for the somewhat 

 twisted, dimidiate, ovate leaves, and ovate, involute lobules ; the 

 perianth pyriform, pentagonal on section, mouth constricted with a 

 slight mucro. 



Measurements. — Stem J to 1 inch long, '1 mm. diam. ; leaves 

 •4 mm. long x '35 mm. broad ; lobule '2 mm. long x -1 mm. broad ; 

 cells •02mm.; underleaves -15 mm. broad x -15 mm. high; seg. 

 •05mm. long; sub-bracteole •3 mm. broad x ^3 mm. high; seg. 

 •075 mm. long ; bracteole ^4 mm. broad x -35 high ; seg. .075 mm. 

 long ; lobule ^2 mm. long x •I mm. broad ; perianth !• mm. long x 

 •6 mm. broad, '75 mm. x -4 mm. ; perigonial leaves ^3 ram. long x 

 •25 mm. broad ; lobule ^3 mm. long x "175 mm. broad ; antheridia 

 •125 mm. x -1 mm. 



DESCRIPTION OF PLATE XXIII. 



Fig. 1. Plants nat. size. 2. Portions of stem, postical view x 64. 3. Leaf, 

 postical view x 64. 4. Leaves, antical view x 64. 5. Portion of 

 leaf X 290. 6. Bract x 64. 7. Underleaf near bracteola (sub- 

 bracteola ?) x 85. 8. Bracteola x 85. 9. ditto x 64. 10. Perianth 

 x31. 11-12. Cross-sections of perianth x 31. 13. Perigonial 

 leaves x 64. 



