1052 HEPATICiE COLLECTED BY MR. T. WHITELEGGE IN N. S. WALES, 



to below the middle, lobes ovato-acute, ciiiate, connate with the 

 sub-quadrate bracteole, which is bifid to below the middle, lobes 

 ovate-acute, lobate at the base. Pei'ianth terminal, half-immersed, 

 elliptic-ovate, deeply 5-6 plicate, unistrata, mouth slightly con- 

 tracted, slightly dentate. Pistillidia numerous (25). Male plant 

 not seen. 



Measurements. — Stems about 1 inch long, -4 mm. diam., with 

 leaves '3 to "4 mm. wide ; leaves 2*25 mm. high x "2 mm, broad ; 

 seg. 1-4 mm., 2-25 mm. x 2-25 mm. ; seg. 1*5 mm. ; cells -025 

 mm., '03 mm., -04 mm. (Jg mm.) ; underleaves 1-5 mm. high x 1'75 

 broad; bract 1*5 mm. high, 2*25 mm. broad, seg. "75 mm. 

 long; cilia '15 to '3 mm. long; underleaf from branch •! mm. 

 high x 16 mm. broad, seg. "6 ; perianth 1"6 mm. long x I'l mm. 

 broad; pistillidia "15 mm. long x -5 mm. broad. 



Obs. — This very beautiful species has a peculiarity rarely 

 observed in any other hepatic. The cilia, which are most 

 numerous (200 were counted on an underleaf), are all unicellular, 

 as in the ciiiate Riccice. It bears a close resemblance to 

 Plilidium ciliare, and Dr. Spruce expresses the opinion that it is 

 a true Ptilidium ; but the insertion of the leaves, which is 

 undoubtedly succubous, postical ramification, the unicellular cilia, 

 the terminal inflorescence, and the deeply-plicate perianths half- 

 immersed in the involucral bracts, afford important distinctive 

 characters. This species, which, so far as we know, cannot be 

 confounded with any other, we name in honour of its discoverer, 

 and are proud that we have the opportunity of doing so. Mr. 

 Whitelegge is a Lancashire man, and is doing valuable work in 

 this and in other branches of natural history. 



DESCRIPTION OF PLATE XXXII. 



Fig. 1. Plant nat. size. 2, .3. Leaves x 16. 4. Leaf x 24 5. Portion of leaf 

 X 290. 6. Underleaf x 16. 7- Underleaf near apex of stem x 24. 

 8. Underleaf from branch X 16. 9. Bract x 24. 10-11. Cilia x 85. 

 12. Perianth X 24. 13. Cross-section of perianth x 24. 14. 

 Pistillidia x 85. 



