EIBES 215 



Germ. Excurs. 562 ; but the plant from the Cole side belongs, I believe, 

 to the R. rubrum, var. syla'estre, Reichb. 1. c. It has smaller and more 

 pubescent leaves, the rachis of the racemes is downy, and the flowers 

 are tinged with dull purple. 



R. nibrum occurs in all the bordering counties, but often only as 

 a bird- sown plant. 



B. nigrum, Linn. Sp. PI. 201 (1753), and of Dodoens. Black Currant. 

 Comb. Cyb. Br. 177. Syme, E. B. iv. 45, t. 523. Nyman, 266. Fl. Oxf. 128. 

 Denizen or native. Hedges, stream-sides, and thickets. In moist 



shady situations, thoroughly naturalized, if not native. Local. 

 Shrub. April-May. 



First recorded by Mr. J. Lousley in FvsseU's Cat. of 1839. 



1. Isis. Wytham. Shrivenham. By the Cole near Coleshill. 



Appleton. Lower Common. 



2. Ock. Plentifully in South meadows. East Hagbourn, on the 



banks of the brook, Lousley, I. c. Brook-side near Blewbury at 

 the wire mills and at Sheen Cross, Blewbury, Heivett, in Herb. Brit. 

 Mus. 1839. Frilford. 



3. Pang. Islets in the Thames near Tilehurst, Tif/wozV. Pangbourn. 



Basildon Wood. Frilsham. Tidmarsh. Bradfield. 



4. Kennet. Hampstead Marshall. Aldermaston. Emborne side, 



near Greenham Common, abundant. Snelsmore. 



6. Loddon. Blackwater river, Benny. Banks of the Thames near 



Henley, Stanton. Ascot. Side of the Loddon between Twyford 



and Loddon Bridge. Near Hurley. 



R. nigrum occurs in a more or less naturalized condition in all tiie 



bordering counties. 



The record in Eay's Cat. Cant. (1660) and Merrett's Pinax oi '■ Bibes fructo 

 nigra. By the riverside at Abbington ' refers to a Cambridgeshire locality. 



CKASSULACEAE, DC, Bull. Soc. Phil. (1801) 49 (1805). 

 Sedaceae, Neck. Act. Ac. Theod. Pal. ii. 487 (1770). 



TILLAEA, Linn. Gen. n. 163 (Mich. 20). 



[T. MuscosA, Linn. Sp. PI. 129 (1753). Top. Bot. 175. Syme, E. B. iv. 47, t. 524. 



Nyman, 265. PI. Oxf. 127. 

 Ambiguity or error. ' Tillaea imiscosa, Mossy red shanks, Mr. Biclieno. In 



the poor soils about Frilsham,' Mayor's Agr. Berks. 1809. I have never 



been able to meet with it, either there or on the heaths about Bracknell 



or Sandhurst, where one might expect it to occur. 

 Hants is the only bordering cou.nty for which I possess any record.] 



COTYLEDON", Linn. Gen. n. 512 (Tournefort, Inst. t. 19). 



C. "Umbilicus, Linn. Sp. PI. 429 (1753). Navel Wort. 



Umbilicus Veneris, Gerard, 424 (1597). U. x>endi(Unus, DC, PI. Grass, t, 162. 

 Top. Bot. 178. Syme, E. B. iv. 62, t. 539. JS^yman, 258. Fl. Oxf. 124. 



