468 HEPATIC^. 



Waechter to the Proceedings of the Manchester Microscopical 

 Society, 1891. 



Description of Plate CCVIII. — Fig. 1. Female plants, 

 natural size (Carrington). 2, Thallus with mature female 

 inflorescence, two-thirds natural size, showing how the midrib 

 of the thallus branches, and how the branches become the stalks 

 of the inflorescence (Waechter). 3. Cross-section of the stalk of 

 a female inflorescence x II (W. H. P.). 4. Vertical section of 

 a young female receptacle when grown to about a quarter of an 

 inch above the thallus with rows of pistillidia (Waechter). 

 5. Vertical section through an older female receptacle: youngest 

 sporogonium (nearest the stalk) on the left ; oldest sporogonium 

 very nearly ripe (Waechter). 6. Vertical section of female 

 receptacle x ? (Bischoff). 7. Involucre, calyptra and capsule x ? 

 (ditto). 8. Portion of an elater, highly magnified (Waechter). 

 9. Young thallus with immature male inflorescence ; the midrib 

 in this case is not branched (ditto). 10. Vertical section through 

 a male inflorescence, antheridium nearly ripe in the centre of 

 the disc; youngest antheridia near the mar^^in of the disc 

 (ditto). 11. Portion of cup x ? (ditto). 12. Gemma x 11 

 (W. H. P.). 



Genus 46. CONOCEPHALTJS, Necl^. 



Ifejyatica, Mich. Nov. pi. gen. p. 3 (1729); Lindb. Hep. utv. p. 5 (1877). 

 Marchantia, L. Sp. pi. ed. p. 1138 (1753). 



C'onocepA«Z«s, Neck. Elem. Bot. Ill, p. 344 (1790); Dum. Comm. p. 115 (1822). 

 Fegatella, Raddi, in Opusc. Scient. di Bologna, 11, p. 35G (1818) ; Nees, Eur. 

 Leberm. iv. p. 170 (1838). 



Fronds large, dichotomous, cartilaginous, reticulate, with a 

 narrow distinct nerve. Female flowers pedicellate, conical or 

 mitriform, membranaceous. Involucres 5-8, tubular, 1 -fruited, 

 suspended from the apex of the peduncle, coherent with the 

 interior of the receptacle. Perianth wanting. Calyptra persistent, 

 campanulate, 2-4-lobed at the apex. Capsule oblong-pyriform, 

 dehiscing by 5-9 revolute segments, pedicellate. Spores muricu- 



