XXIII. 



A LIST OF HERTFORDSHIRE HEPATIC^. 



By A. E. GiBBs, F.L.S. 



Head at Watford, ISth April, 1893. 



The following is a short list of the Hcpatico} wliicli arc at 

 present known to be indigenons to onr connty. It is compiled 

 principally from a manuscript by the late Eev. W. H. Coleman, 

 wliich is now in the possession of the Society. There are also some 

 records by other observers. Eecords to which no observer's name 

 is attached are my own, and the mark ! is used to indicate that 

 I also have found the species growing in the locality mentioned. 

 All the records for which references are made to our ' Transactions ' 

 are of species found at field meetings of the Society. 



The usual and convenient plan of dividing the county into river- 

 districts is adhered to. 



llAECHANTIACEiE. 



Mar chant ia pnhjmorplia, L. Ivel. — "Court behind my house 

 [at Hitchin] and in the church-yard, Hitchin ; " Brown; Coleman. 

 CoLXE. — Side of watercourse near the Iliver Ver, Water-walk, St. 

 Albans, 1887; HopJcinson. On Avail near St. Peter's Church, 

 St. Albans. In own garden, and at Kingsbury, St. Albans ; 

 ITojjkinson. Lea. — Bank of canal in Panshanger Park ; north 

 side of Essendon Church, and on garden-pots at Baron Dims- 

 dale's, Essendon ; Coleman. 'Bro-K.howrne Comvion; Andrews, 1891 

 (' Trans. Herts Xat. Hist. Soc.,' VI, IxviiV 



Conocephalus coniciis, L. Cam. — Ashwell ; H. Fordham ; Cole- 

 man. IvEL. — Plantation by the side of Ippollytts brook ; Broivn ; 

 Coleman. Lea. — Ditch-banks near Boxford Farm ; about springs 

 and on the banks of the Maran [Mimram] at Tewin ; Coleman ; 

 IVehh. 



Asterella hemispharica, L. Lea. — Drover's Lane, near No Man's 

 Land ; Coleman ; Thrale. 



Lunularia vulgaris, Mich. Ivel. — Hitchin ; Broicn ; Coleman. 

 Lea. — On garden-pots at Baron Dimsdale's, Essendon ; Coleman. 

 Wormley Bury ; Wehh. 



Riccia crystallina, L. Lea. — Fields between Bengeo and Ware 

 West Mill; Little Berkhampstead ; Panshanger; Digswell Lodge 

 Farm ; near Ball's Wood ; Broxbourne Wood ; Coleman. 



Ricciella fluitans, L. Lea. — Broxbourne Bury Ponds! ; Coleman. 

 Pond outside Wonnley West Wood on the west ; Coleman. Brox- 

 bourne Common, 1888; 'Trans. Herts !N'at. Hist. Soc.,' Y, xxv; 

 Andrews, 1891 (^ib. YI, Ixvii). 



Ricciocarpiis natans, L. Ivel. — Ditch between Baldock and 

 Radwell ; Coleman. Lea. — Pond at Broxbourne Bury ; pond by 

 the west fork of Brickendon Lane ; pond between Bayford and 

 Little Berkhampstead ; pond in Wormley Wood ; near Black Fan 

 Wood ; between Brickendon Green and How Clay -pits ; Coleman. 



vol. VII. PART VII. 17 



